Building, running, and managing containers Red Hat Enterprise Linux 8 Using Podman, Buildah, and Skopeo on Red Hat Enterprise Linux 8 Red Hat Customer Content Services

Commands:
subscription-manager register Registering to: subscription.rhsm.redhat.com:443/subscription Username: <username> Password: <password>
subscription-manager attach --auto
subscription-manager attach --pool <PoolID>
yum module install -y container-tools
yum install podman-docker
yum install podman -y
useradd -c "Joe Jones" joe passwd joe
ssh joe@server.example.com
podman pull registry.access.redhat.com/ubi8/ubi
podman run --rm --name=myubi registry.access.redhat.com/ubi8/ubi cat /etc/os-release NAME="Red Hat Enterprise Linux" VERSION="8 (Plow)"
usermod --add-subuids 200000-201000 --add-subgids 200000-201000 <username>
grep <username> /etc/subuid /etc/subgid /etc/subuid: <username> :200000:1001 /etc/subgid: <username> :200000:1001
podman run -d --cap-add SYS_TIME ntpd
podman run -d httpd
podman run -d -p 80:80 httpd
echo 80 > /proc/sys/net/ipv4/ip_unprivileged_port_start
microdnf module enable nodejs:14 Downloading metadata Enabling module streams: nodejs:14 Running transaction test
podman pull <registry>[:<port>]/[<namespace>/]<name>:<tag>
podman info -f json | jq '.registries["search"]' [ "registry.access.redhat.com", "registry.redhat.io", "docker.io" ]
unqualified-search-registries = ["registry.access.redhat.com", "registry.redhat.io", "docker.io"] short-name-mode = "permissive"
[[registry]] location="localhost:5000" insecure=true
[[registry]] location = "registry.example.org" blocked = true
[[registry]] location = "registry.example.org" prefix="registry.example.org/namespace" blocked = true
[[registry]] location = "registry.example.org" prefix="registry.example.org/namespace/image" blocked = true
[[registry]] location="registry.example.com" [[registry.mirror]] location="mirror-1.com" [[registry.mirror]] location="mirror-2.com"
podman login quay.io
podman search quay.io/postgresql-10 INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED redhat.io registry.redhat.io/rhel8/postgresql-10 This container image ... 0 redhat.io registry.redhat.io/rhscl/postgresql-10-rhel7 PostgreSQL is an ... 0
podman search quay.io/
podman search postgresql-10
podman login registry.redhat.io Username: <username> Password: <password> Login Succeeded!
podman pull registry.redhat.io/ubi8/ubi
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.redhat.io/ubi8/ubi latest 3269c37eae33 7 weeks ago 208 MB
unqualified-search-registries=["registry.fedoraproject.org", "quay.io"] [aliases] "fedora"="registry.fedoraproject.org/fedora"
podman pull fedora Resolved "fedora" as an alias (/etc/containers/registries.conf.d/000-shortnames.conf) Trying to pull registry.fedoraproject.org/fedora:latest... Storing signatures
podman pull nginx ? Please select an image: registry.access.redhat.com/nginx:latest registry.redhat.io/nginx:latest ▸ docker.io/library/nginx:latest ✔ docker.io/library/nginx:latest Trying to pull docker.io/library/nginx:latest... Storing signatures
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.fedoraproject.org/fedora latest 28317703decd 12 days ago 184 MB docker.io/library/nginx latest 08b152afcfae 13 days ago 137 MB
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.access.redhat.com/ubi8/ubi latest 3269c37eae33 6 weeks ago 208 MB
podman inspect registry.redhat.io/ubi8/ubi ... "Cmd": [ "/bin/bash" ], "Labels": { "architecture": "x86_64", "build-date": "2020-12-10T01:59:40.343735", "com.redhat.build-host": "cpt-1002.osbs.prod.upshift.rdu2.redhat.com", "com.redhat.component": "ubi8-container", "com.redhat.license_terms": "https://www.redhat.com/..., "description": "The Universal Base Image is }
skopeo inspect docker://registry.redhat.io/ubi8/ubi-init { "Name": "registry.redhat.io/ubi8/ubi8-init", "Digest": "sha256:c6d1e50ab...", "RepoTags": [ "latest" ], "Created": "2020-12-10T07:16:37.250312Z", "DockerVersion": "1.13.1", "Labels": { "architecture": "x86_64", "build-date": "2020-12-10T07:16:11.378348", "com.redhat.build-host": "cpt-1007.osbs.prod.upshift.rdu2.redhat.com", "com.redhat.component": "ubi8-init-container", "com.redhat.license_terms": "https://www.redhat.com/en/about/red-hat-end-user-license-agreements#UBI", "description": "The Universal Base Image Init is designed to run an init system as PID 1 for running multi-services inside a container } }
skopeo copy docker://quay.io/skopeo/stable:latest docker://registry.example.com/skopeo:latest
mkdir -p /var/lib/images/nginx
skopeo copy docker://docker.io/nginx:latest dir:/var/lib/images/nginx
ls /var/lib/images/nginx 08b11a3d692c1a2e15ae840f2c15c18308dcb079aa5320e15d46b62015c0f6f3 4fcb23e29ba19bf305d0d4b35412625fea51e82292ec7312f9be724cb6e31ffd manifest.json version
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.redhat.io/ubi8/ubi latest 3269c37eae33 7 weeks ago 208 MB
podman tag registry.redhat.io/ubi8/ubi myubi
podman tag 3269c37eae33 myubi
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.redhat.io/ubi8/ubi latest 3269c37eae33 2 months ago 208 MB localhost/myubi latest 3269c37eae33 2 months ago 208 MB
podman tag registry.redhat.io/ubi8/ubi myubi:8
podman tag 3269c37eae33 myubi:8
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.redhat.io/ubi8/ubi latest 3269c37eae33 2 months ago 208 MB localhost/myubi latest 3269c37eae33 2 months ago 208 MB localhost/myubi 8 3269c37eae33 2 months ago 208 MB
podman build --platform linux/arm64,linux/amd64 --manifest <registry> / <image> .
podman manifest push <registry> / <image>
podman manifest inspect <registry>/<image>
podman save -o myrsyslog.tar registry.redhat.io/rhel8/rsyslog:latest
podman save -o myrsyslog-oci.tar --format=oci-archive registry.redhat.io/rhel8/rsyslog
file myrsyslog.tar myrsyslog.tar: POSIX tar archive
podman load -i myrsyslog.tar Loaded image(s): registry.redhat.io/rhel8/rsyslog:latest
podman tag registry.redhat.io/ubi8/ubi registry.example.com:5000/ubi8/ubi
podman push registry.example.com:5000/ubi8/ubi
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.redhat.io/rhel8/rsyslog latest 4b32d14201de 7 weeks ago 228 MB registry.redhat.io/ubi8/ubi latest 3269c37eae33 7 weeks ago 208 MB localhost/myubi X.Y 3269c37eae33 7 weeks ago 208 MB
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7ccd6001166e registry.redhat.io/rhel8/rsyslog:latest /bin/rsyslog.sh 6 seconds ago Up 5 seconds ago mysyslog
podman stop mysyslog 7ccd6001166e9720c47fbeb077e0afd0bb635e74a1b0ede3fd34d09eaf5a52e9
podman rmi registry.redhat.io/rhel8/rsyslog
podman rmi registry.redhat.io/rhel8/rsyslog registry.redhat.io/ubi8/ubi
podman rmi -a
podman rmi -f 1de7d7b3f531 1de7d7b3f531
run [options] image [command [arg ...]]
podman run --rm registry.access.redhat.com/ubi8/ubi cat /etc/os-release NAME="Red Hat Enterprise Linux" ID="rhel" HOME_URL="https://www.redhat.com/" BUG_REPORT_URL="https://bugzilla.redhat.com/" REDHAT_BUGZILLA_PRODUCT=" Red Hat Enterprise Linux 8"
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
podman run --name=myubi -it registry.access.redhat.com/ubi8/ubi /bin/bash
yum install procps-ng
ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 12:55 pts/0 00:00:00 /bin/bash root 31 1 0 13:07 pts/0 00:00:00 ps -ef
exit
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 1984555a2c27 registry.redhat.io/ubi8/ubi:latest /bin/bash 21 minutes ago Exited (0) 21 minutes ago myubi
podman run -d registry.redhat.io/rhel8/rsyslog
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 74b1da000a11 rhel8/rsyslog /bin/rsyslog.sh 2 minutes ago Up About a minute musing_brown
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES IS INFRA d65aecc325a4 ubi8/ubi /bin/bash 3 secs ago Exited (0) 5 secs ago peaceful_hopper false 74b1da000a11 rhel8/rsyslog rsyslog.sh 2 mins ago Up About a minute musing_brown false
podman start myubi
podman start -a -i myubi
exit
podman inspect 64ad95327c74 [ { "Id": "64ad95327c740ad9de468d551c50b6d906344027a0e645927256cd061049f681", "Created": "2021-03-02T11:23:54.591685515+01:00", "Path": "/bin/rsyslog.sh", "Args": [ "/bin/rsyslog.sh" ], "State": { "OciVersion": "1.0.2-dev", "Status": "running",
podman inspect --format='{{.State.StartedAt}}' 64ad95327c74 2021-03-02 11:23:54.945071961 +0100 CET
podman run --name="log_test" -v /dev/log:/dev/log --rm registry.redhat.io/ubi8/ubi logger "Testing logging to the host"
journalctl -b | grep Testing Dec 09 16:55:00 localhost.localdomain root[14634]: Testing logging to the host
podman run -d --name=mysyslog registry.redhat.io/rhel8/rsyslog
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES c56ef6a256f8 registry.redhat.io/rhel8/rsyslog:latest /bin/rsyslog.sh 20 minutes ago Up 20 minutes ago mysyslog
podman mount mysyslog /var/lib/containers/storage/overlay/990b5c6ddcdeed4bde7b245885ce4544c553d108310e2b797d7be46750894719/merged
ls /var/lib/containers/storage/overlay/990b5c6ddcdeed4bde7b245885ce4544c553d108310e2b797d7be46750894719/merged bin boot dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv sys tmp usr var
cat /var/lib/containers/storage/overlay/990b5c6ddcdeed4bde7b245885ce4544c553d108310e2b797d7be46750894719/merged/etc/os-release NAME="Red Hat Enterprise Linux" VERSION="8 (Ootpa)" ID="rhel" ID_LIKE="fedora"
podman run -d --ip=10.88.0.44 registry.access.redhat.com/rhel8/rsyslog efde5f0a8c723f70dd5cb5dc3d5039df3b962fae65575b08662e0d5b5f9fbe85
podman inspect efde5f0a8c723 | grep 10.88.0.44 "IPAddress": "10.88.0.44",
podman exec -it myrsyslog rpm -qa tzdata-2020d-1.el8.noarch python3-pip-wheel-9.0.3-18.el8.noarch redhat-release-8.3-1.0.el8.x86_64 filesystem-3.8-3.el8.x86_64
podman exec -it myrsyslog /bin/bash
yum install procps-ng
ps -ef UID PID PPID C STIME TTY TIME CMD root 1 0 0 10:23 ? 00:00:01 /usr/sbin/rsyslogd -n root 8 0 0 11:07 pts/0 00:00:00 /bin/bash root 47 8 0 11:13 pts/0 00:00:00 ps -ef
df -h Filesystem Size Used Avail Use% Mounted on fuse-overlayfs 27G 7.1G 20G 27% / tmpfs 64M 0 64M 0% /dev tmpfs 269M 936K 268M 1% /etc/hosts shm 63M 0 63M 0% /dev/shm
uname -r 4.18.0-240.10.1.el8_3.x86_64
free --mega total used free shared buff/cache available Mem: 2818 615 1183 12 1020 1957 Swap: 3124 0 3124
podman volume create hostvolume
podman volume inspect hostvolume [ { "name": "hostvolume", "labels": {}, "mountpoint": "/home/username/.local/share/containers/storage/volumes/hostvolume/_data", "driver": "local", "options": {}, "scope": "local" } ]
echo "Hello from host" >> USDmntPoint/host.txt
ls USDmntPoint/ host.txt
podman run -it --name myubi1 -v hostvolume:/containervolume1 registry.access.redhat.com/ubi8/ubi /bin/bash
ls /containervolume1 host.txt
echo "Hello from container 1" >> /containervolume1/container1.txt
ls USDmntPoint container1.rxt host.txt
podman run -it --name myubi2 -v hostvolume:/containervolume2 registry.access.redhat.com/ubi8/ubi /bin/bash
ls /containervolume2 container1.txt host.txt
echo "Hello from container 2" >> /containervolume2/container2.txt
ls USDmntPoint container1.rxt container2.txt host.txt
podman run -dt --name=myubi registry.access.redhat.com/8/ubi
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a6a6d4896142 registry.access.redhat.com/8:latest /bin/bash 7 seconds ago Up 7 seconds ago myubi
podman attach myubi
echo "hello" > testfile
podman export -o myubi.tar a6a6d4896142
ls -l -rw-r--r--. 1 user user 210885120 Apr 6 10:50 myubi-container.tar
mkdir myubi-container tar -xf myubi-container.tar -C myubi-container tree -L 1 myubi-container ├── bin -> usr/bin ├── boot ├── dev ├── etc ├── home ├── lib -> usr/lib ├── lib64 -> usr/lib64 ├── lost+found ├── media ├── mnt ├── opt ├── proc ├── root ├── run ├── sbin -> usr/sbin ├── srv ├── sys ├── testfile ├── tmp ├── usr └── var 20 directories, 1 file
podman import myubi.tar myubi-imported Getting image source signatures Copying blob 277cab30fe96 done Copying config c296689a17 done Writing manifest to image destination Storing signatures c296689a17da2f33bf9d16071911636d7ce4d63f329741db679c3f41537e7cbf
podman images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/library/myubi-imported latest c296689a17da 51 seconds ago 211 MB
podman run -it --name=myubi-imported docker.io/library/myubi-imported cat testfile hello
podman stop myubi
podman stop 1984555a2c27
*podman kill --signal="SIGHUP" 74b1da000a11* 74b1da000a114015886c557deec8bed9dfb80c888097aa83f30ca4074ff55fb2
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES IS INFRA d65aecc325a4 ubi8/ubi /bin/bash 3 secs ago Exited (0) 5 secs ago peaceful_hopper false 74b1da000a11 rhel8/rsyslog rsyslog.sh 2 mins ago Up About a minute musing_brown false
podman rm peaceful_hopper
podman stop musing_brown podman rm musing_brown
podman rm clever_yonath furious_shockley
podman rm -a
#!/bin/bash if id -nG "USDUSER" 2> /dev/null | grep -qw "USDGROUP" 2> /dev/null ; then exit 0 else exit 1 fi
podman run image
external preexec hook /etc/containers/pre-exec-hooks/001-check-groups.sh failed
podman pull registry.access.redhat.com/ubi8/ubi
podman export USD(podman create registry.access.redhat.com/ubi8/ubi) > rhel.tar
mkdir -p bundle/rootfs
tar -C bundle/rootfs -xf rhel.tar
<runtime> spec -b bundle
vi bundle/config.json
<runtime> create -b bundle/ myubi
<runtime> start myubi
<runtime> list ID PID STATUS BUNDLE CREATED OWNER myubi 0 stopped /root/bundle 2021-09-14T09:52:26.659714605Z root
podman pull registry.access.redhat.com/ubi8/ubi
podman run --name=myubi -dt --runtime=<runtime> ubi8 e4654eb4df12ac031f1d0f2657dc4ae6ff8eb0085bf114623b66cc664072e69b
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e4654eb4df12 registry.access.redhat.com/ubi8:latest bash 4 seconds ago Up 4 seconds ago myubi
podman inspect myubi --format "{{.OCIRuntime}}" <runtime>
vim /etc/containers/containers.conf [engine] runtime = " <runtime> "
podman run --name=myubi -dt ubi8 bash Resolved "ubi8" as an alias (/etc/containers/registries.conf.d/001-rhel-shortnames.conf) Trying to pull registry.access.redhat.com/ubi8:latest... Storing signatures
podman inspect myubi --format "{{.OCIRuntime}}" <runtime>
FROM registry.access.redhat.com/ubi8/ubi-init RUN yum -y install httpd; yum clean all; systemctl enable httpd; RUN echo "Successful Web Server Test" > /var/www/html/index.html RUN mkdir /etc/systemd/system/httpd.service.d/; echo -e '[Service]\nRestart=always' > /etc/systemd/system/httpd.service.d/httpd.conf EXPOSE 80 CMD [ "/sbin/init" ]
podman build --format=docker -t mysysd .
setsebool -P container_manage_cgroup 1
podman run -d --name=mysysd_run -p 80:80 mysysd
podman run -d --name=mysysd -p 8081:80 mysysd
sysctl net.ipv4.ip_unprivileged_port_start=80
podman ps a282b0c2ad3d localhost/mysysd:latest /sbin/init 15 seconds ago Up 14 seconds ago 0.0.0.0:80->80/tcp mysysd_run
curl localhost/index.html Successful Web Server Test
microcontainer=USD(buildah from registry.access.redhat.com/ubi8/ubi-micro)
micromount=USD(buildah mount USDmicrocontainer)
yum install --installroot USDmicromount --releasever 8 --setopt install_weak_deps=false --nodocs -y httpd yum clean all --installroot USDmicromount
buildah umount USDmicrocontainer
buildah commit USDmicrocontainer ubi-micro-httpd
podman images ubi-micro-httpd localhost/ubi-micro-httpd latest 7c557e7fbe9f 22 minutes ago 151 MB
cat /usr/share/containers/mounts.conf /usr/share/rhel/secrets:/run/secrets
podman run -it --name myubi registry.access.redhat.com/ubi8/ubi
yum install --disablerepo= * --enablerepo=ubi-8-appstream-rpms --enablerepo=ubi-8-baseos-rpms bzip2
yum install zsh
yum install --enablerepo=codeready-builder-for-rhel-8-x86_64-rpms python38-devel
yum repolist
rpm -qa
podman run -it --name myubimin registry.access.redhat.com/ubi8/ubi-minimal
microdnf install bzip2 --setopt install_weak_deps=false
microdnf install --enablerepo=codeready-builder-for-rhel-8-x86_64-rpms python38-devel --setopt install_weak_deps=false
microdnf repolist
rpm -qa
podman run -it --name myubi registry.access.redhat.com/ubi8/ubi yum install bzip2
podman run -it --name myubimin registry.access.redhat.com/ubi8/ubi-minimal microdnf install bzip2
yum repolist
microdnf repolist
rpm -qa
FROM registry.access.redhat.com/ubi8/ubi USER root LABEL maintainer="John Doe" Update image RUN yum update --disablerepo=* --enablerepo=ubi-8-appstream-rpms --enablerepo=ubi-8-baseos-rpms -y && rm -rf /var/cache/yum RUN yum install --disablerepo=* --enablerepo=ubi-8-appstream-rpms --enablerepo=ubi-8-baseos-rpms httpd -y && rm -rf /var/cache/yum Add default Web page and expose port RUN echo "The Web Server is Running" > /var/www/html/index.html EXPOSE 80 Start the service CMD ["-D", "FOREGROUND"] ENTRYPOINT ["/usr/sbin/httpd"]
buildah bud -t johndoe/webserver . STEP 1: FROM registry.access.redhat.com/ubi8/ubi:latest STEP 2: USER root STEP 3: LABEL maintainer="John Doe" STEP 4: RUN yum update --disablerepo=* --enablerepo=ubi-8-appstream-rpms --enablerepo=ubi-8-baseos-rpms -y Writing manifest to image destination Storing signatures --> f9874f27050 f9874f270500c255b950e751e53d37c6f8f6dba13425d42f30c2a8ef26b769f2
podman run -d --name=myweb -p 80:80 johndoe/webserver bbe98c71d18720d966e4567949888dc4fb86eec7d304e785d5177168a5965f64
curl http://localhost/index.html The Web Server is Running
skopeo copy docker://registry.access.redhat.com/ubi8:8.1-397-source dir:USDHOME/TEST Copying blob 477bc8106765 done Copying blob c438818481d3 done Writing manifest to image destination Storing signatures
skopeo inspect dir:USDHOME/TEST { "Digest": "sha256:7ab721ef3305271bbb629a6db065c59bbeb87bc53e7cbf88e2953a1217ba7322", "RepoTags": [], "Created": "2020-02-11T12:14:18.612461174Z", "DockerVersion": "", "Labels": null, "Architecture": "amd64", "Os": "linux", "Layers": [ "sha256:1ae73d938ab9f11718d0f6a4148eb07d38ac1c0a70b1d03e751de8bf3c2c87fa", "sha256:9fe966885cb8712c47efe5ecc2eaa0797a0d5ffb8b119c4bd4b400cc9e255421", "sha256:61b2527a4b836a4efbb82dfd449c0556c0f769570a6c02e112f88f8bbcd90166", "sha256:cc56c782b513e2bdd2cc2af77b69e13df4ab624ddb856c4d086206b46b9b9e5f", "sha256:dcf9396fdada4e6c1ce667b306b7f08a83c9e6b39d0955c481b8ea5b2a465b32", "sha256:feb6d2ae252402ea6a6fca8a158a7d32c7e4572db0e6e5a5eab15d4e0777951e" ], "Env": null }
cd USDHOME/TEST for f in USD(ls); do tar xvf USDf; done
find blobs/ rpm_dir/ blobs/ blobs/sha256 blobs/sha256/10914f1fff060ce31388f5ab963871870535aaaa551629f5ad182384d60fdf82 rpm_dir/ rpm_dir/gzip-1.9-4.el8.src.rpm
cat /etc/containers/registries.d/default.yaml docker: <registry>: lookaside: https://registry-lookaside.example.com lookaside-staging: file:///var/lib/containers/sigstore
gpg --full-gen-key
gpg --output <path>/key.gpg --armor --export <username@domain.com>
podman build -t <registry>/<namespace>/<image>
podman push --sign-by <username@domain.com> <registry>/<namespace>/<image>
(cd /var/lib/containers/sigstore/; find . -type f) ./ <image> @sha256= <digest> /signature-1
rsync -a /var/lib/containers/sigstore <user@registry-lookaside.example.com> :/registry-lookaside/webroot/sigstore
cat /etc/containers/registries.d/default.yaml docker: <registry>: lookaside: https://registry-lookaside.example.com lookaside-staging: file:///var/lib/containers/sigstore
podman image trust set -f <path> /key.gpg <registry>/<namespace>
cat /etc/containers/policy.json { "transports": { "docker": { "<registry>/<namespace>": [ { "type": "signedBy", "keyType": "GPGKeys", "keyPath": "<path>/key.gpg" } ] } } }
podman pull <registry>/<namespace>/<image> Storing signatures e7d92cdc71feacf90708cb59182d0df1b911f8ae022d29e8e95d75ca6a99776a
skopeo generate-sigstore-key --output-prefix myKey
git clone -b v2.0.0 https://github.com/sigstore/cosign cd cosign make ./cosign
./cosign generate-key-pair Private key written to cosign.key Public key written to cosign.pub
docker: <registry>: use-sigstore-attachments: true
podman build -t <registry>/<namespace>/<image>
podman push --sign-by-sigstore-private-key ./myKey.private <registry>/<namespace>/image>
docker: <registry>: use-sigstore-attachments: true
"transports": { "docker": { " <registry>/<namespace> ": [ { "type": "sigstoreSigned", "keyPath": "/some/path/to/cosign.pub" } ] } }
podman pull <registry>/<namespace>/<image>
docker: <registry>: use-sigstore-attachments: true
fulcio: fulcioURL: "https://<your-fulcio-server>" oidcMode: "interactive" oidcIssuerURL: "https://<your-OIDC-provider>" oidcClientID: "sigstore" rekorURL: "https://<your-rekor-server>"
podman push --sign-by-sigstore= file.yml <registry>/<namespace>/<image>
docker: <registry>: use-sigstore-attachments: true
{ "transports": { "docker": { "<registry>/<namespace>": [ { "type": "sigstoreSigned", "fulcio": { "caPath": "/path/to/local/CA/file", "oidcIssuer": "https://expected.OIDC.issuer/", "subjectEmail", "expected-signing-user@example.com", }, "rekorPublicKeyPath": "/path/to/local/public/key/file", } ] } } }
podman pull <registry>/<namespace>/<image>
skopeo generate-sigstore-key --output-prefix myKey
docker: <registry>: use-sigstore-attachments: true
podman build -t <registry>/<namespace>/<image>
privateKeyFile: "/home/user/sigstore/ myKey.private " privateKeyPassphraseFile: "/mnt/user/sigstore- myKey -passphrase" rekorURL: "https://<your-rekor-server>"
podman push --sign-by-sigstore= file.yml <registry>/<namespace>/<image>
cosign verify <registry>/<namespace>/<image> --key myKey.pub
{ "transports": { "docker": { "<registry>/<namespace>": [ { "type": "sigstoreSigned", "rekorPublicKeyPath": "/path/to/local/public/key/file", } ] } } }
podman pull <registry>/<namespace>/<image>
podman network ls NETWORK ID NAME VERSION PLUGINS 2f259bab93aa podman 0.4.0 bridge,portmap,firewall,tuning
podman network inspect podman [ { "cniVersion": "0.4.0", "name": "podman", "plugins": [ { "bridge": "cni-podman0", "hairpinMode": true, "ipMasq": true, "ipam": { "ranges": [ [ { "gateway": "10.88.0.1", "subnet": "10.88.0.0/16" } ] ], "routes": [ { "dst": "0.0.0.0/0" } ], "type": "host-local" }, "isGateway": true, "type": "bridge" }, { "capabilities": { "portMappings": true }, "type": "portmap" }, { "type": "firewall" }, { "type": "tuning" } ] } ]
podman network create mynet /etc/cni/net.d/mynet.conflist
podman network ls NETWORK ID NAME VERSION PLUGINS 2f259bab93aa podman 0.4.0 bridge,portmap,firewall,tuning 11c844f95e28 mynet 0.4.0 bridge,portmap,firewall,tuning,dnsname
podman network connect mynet mycontainer
podman inspect --format='{{.NetworkSettings.Networks}}' mycontainer map[podman:0xc00042ab40 mynet:0xc00042ac60]
podman network disconnect mynet mycontainer
podman inspect --format='{{.NetworkSettings.Networks}}' mycontainer map[podman:0xc000537440]
podman network ls NETWORK ID NAME VERSION PLUGINS 2f259bab93aa podman 0.4.0 bridge,portmap,firewall,tuning 11c844f95e28 mynet 0.4.0 bridge,portmap,firewall,tuning,dnsname
podman network rm mynet mynet
podman network ls NETWORK ID NAME VERSION PLUGINS 2f259bab93aa podman 0.4.0 bridge,portmap,firewall,tuning
podman network prune WARNING! This will remove all networks not used by at least one container. Are you sure you want to continue? [y/N] y
podman network ls NETWORK ID NAME VERSION PLUGINS 2f259bab93aa podman 0.4.0 bridge,portmap,firewall,tuning
podman pod create --name mypod 223df6b390b4ea87a090a4b5207f7b9b003187a6960bd37631ae9bc12c433aff The pod is in the initial state Created.
podman pod ps POD ID NAME STATUS CREATED # OF CONTAINERS INFRA ID 223df6b390b4 mypod Created Less than a second ago 1 3afdcd93de3e
podman ps -a --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD 3afdcd93de3e registry.access.redhat.com/ubi8/pause Less than a second ago Created 223df6b390b4-infra 223df6b390b4
podman run -dt --name myubi --pod mypod registry.access.redhat.com/ubi8/ubi /bin/bash 5df5c48fea87860cf75822ceab8370548b04c78be9fc156570949013863ccf71
podman pod ps POD ID NAME STATUS CREATED # OF CONTAINERS INFRA ID 223df6b390b4 mypod Running Less than a second ago 2 3afdcd93de3e
podman ps -a --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD 5df5c48fea87 registry.access.redhat.com/ubi8/ubi:latest /bin/bash Less than a second ago Up Less than a second ago myubi 223df6b390b4 3afdcd93de3e registry.access.redhat.com/ubi8/pause Less than a second ago Up Less than a second ago 223df6b390b4-infra 223df6b390b4
podman pod top mypod USER PID PPID %CPU ELAPSED TTY TIME COMMAND 0 1 0 0.000 24.077433518s ? 0s /pause root 1 0 0.000 24.078146025s pts/0 0s /bin/bash
podman pod stats -a --no-stream ID NAME CPU % MEM USAGE / LIMIT MEM % NET IO BLOCK IO PIDS a9f807ffaacd frosty_hodgkin -- 3.092MB / 16.7GB 0.02% -- / -- -- / -- 2 3b33001239ee sleepy_stallman -- -- / -- -- -- / -- -- / -- --
podman pod inspect mypod { "Id": "db99446fa9c6d10b973d1ce55a42a6850357e0cd447d9bac5627bb2516b5b19a", "Name": "mypod", "Created": "2020-09-08T10:35:07.536541534+02:00", "CreateCommand": [ "podman", "pod", "create", "--name", "mypod" ], "State": "Running", "Hostname": "mypod", "CreateCgroup": false, "CgroupParent": "/libpod_parent", "CgroupPath": "/libpod_parent/db99446fa9c6d10b973d1ce55a42a6850357e0cd447d9bac5627bb2516b5b19a", "CreateInfra": false, "InfraContainerID": "891c54f70783dcad596d888040700d93f3ead01921894bc19c10b0a03c738ff7", "SharedNamespaces": [ "uts", "ipc", "net" ], "NumContainers": 2, "Containers": [ { "Id": "891c54f70783dcad596d888040700d93f3ead01921894bc19c10b0a03c738ff7", "Name": "db99446fa9c6-infra", "State": "running" }, { "Id": "effc5bbcfe505b522e3bf8fbb5705a39f94a455a66fd81e542bcc27d39727d2d", "Name": "myubi", "State": "running" } ] }
podman pod stop mypod
podman ps -a --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME 5df5c48fea87 registry.redhat.io/ubi8/ubi:latest /bin/bash About a minute ago Exited (0) 7 seconds ago myubi 223df6b390b4 mypod 3afdcd93de3e registry.access.redhat.com/8/pause About a minute ago Exited (0) 7 seconds ago 8a4e6527ac9d-infra 223df6b390b4 mypod
podman pod rm mypod 223df6b390b4ea87a090a4b5207f7b9b003187a6960bd37631ae9bc12c433aff
podman ps podman pod ps
podman inspect --format='{{.NetworkSettings.IPAddress}}' <containerName>
podman inspect --format='{{.NetworkSettings.Networks}}' <containerName>
podman inspect --format='{{.NetworkSettings.Ports}}' <containerName>
podman run -dt --name=web-container docker.io/library/httpd
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES b8c057333513 docker.io/library/httpd:latest httpd-foreground 4 seconds ago Up 5 seconds ago web-container
podman inspect --format='{{.NetworkSettings.IPAddress}}' web-container 10.88.0.2
podman run -it --name=myubi ubi8/ubi curl 10.88.0.2:80 <html><body><h1>It works!</h1></body></html>
podman network inspect podman | grep bridge "bridge": "cni-podman0", "type": "bridge"
ip addr show cni-podman0 6: cni-podman0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000 link/ether 62:af:a1:0a:ca:2e brd ff:ff:ff:ff:ff:ff inet 10.88.0.1/16 brd 10.88.255.255 scope global cni-podman0 valid_lft forever preferred_lft forever inet6 fe80::60af:a1ff:fe0a:ca2e/64 scope link valid_lft forever preferred_lft forever
podman inspect --format='{{.NetworkSettings.IPAddress}}' web-container 10.88.0.2
curl 10.88.0.2:80 <html><body><h1>It works!</h1></body></html>
podman run -dt --name=web1 ubi8/httpd-24
podman run -dt --name=web2 -P ubi8/httpd-24
podman run -dt --name=web3 -p 8888:8080 ubi8/httpd-24
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES db23e8dabc74 registry.access.redhat.com/ubi8/httpd-24:latest /usr/bin/run-http... 23 seconds ago Up 23 seconds 8080/tcp, 8443/tcp web1 1824b8f0a64b registry.access.redhat.com/ubi8/httpd-24:latest /usr/bin/run-http... 18 seconds ago Up 18 seconds 0.0.0.0:33127->8080/tcp, 0.0.0.0:37679->8443/tcp web2 39de784d917a registry.access.redhat.com/ubi8/httpd-24:latest /usr/bin/run-http... 5 seconds ago Up 5 seconds 0.0.0.0:8888->8080/tcp, 8443/tcp web3
podman inspect --format='{{.NetworkSettings.IPAddress}}' web1 podman inspect --format='{{.NetworkSettings.IPAddress}}' web3
10.88.0.2:8080 <title>Test Page for the HTTP Server on Red Hat Enterprise Linux</title>
curl localhost:43595 <title>Test Page for the HTTP Server on Red Hat Enterprise Linux</title>
curl 10.88.0.4:8080 <title>Test Page for the HTTP Server on Red Hat Enterprise Linux</title>
podman run -d --net mynet --name receiver ubi8 sleep 3000
podman run -it --rm --net mynet --name sender alpine ping receiver PING rcv01 (10.89.0.2): 56 data bytes 64 bytes from 10.89.0.2: seq=0 ttl=42 time=0.041 ms 64 bytes from 10.89.0.2: seq=1 ttl=42 time=0.125 ms 64 bytes from 10.89.0.2: seq=2 ttl=42 time=0.109 ms
podman pod create --name=web-pod
podman container run -d --pod web-pod --name=web-container docker.io/library/httpd
podman ps --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME 58653cf0cf09 k8s.gcr.io/pause:3.5 4 minutes ago Up 3 minutes ago 4e61a300c194-infra 4e61a300c194 web-pod b3f4255afdb3 docker.io/library/httpd:latest httpd-foreground 3 minutes ago Up 3 minutes ago web-container 4e61a300c194 web-pod
podman container run -it --rm --pod web-pod docker.io/library/fedora curl localhost <html><body><h1>It works!</h1></body></html>
podman pod create --name=web-pod-publish -p 80:80
podman pod ls POD ID NAME STATUS CREATED INFRA ID # OF CONTAINERS 26fe5de43ab3 publish-pod Created 5 seconds ago 7de09076d2b3 1
podman container run -d --pod web-pod-publish --name=web-container docker.io/library/httpd
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 7de09076d2b3 k8s.gcr.io/pause:3.5 About a minute ago Up 23 seconds ago 0.0.0.0:80->80/tcp 26fe5de43ab3-infra 088befb90e59 docker.io/library/httpd httpd-foreground 23 seconds ago Up 23 seconds ago 0.0.0.0:80->80/tcp web-container
curl localhost:80 <html><body><h1>It works!</h1></body></html>
podman network create pod-net /etc/cni/net.d/pod-net.conflist
podman pod create --net pod-net --name web-pod
podman run -d --pod webt-pod --name=web-container docker.io/library/httpd
podman ps -p CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME b7d6871d018c registry.access.redhat.com/ubi8/pause:latest 9 minutes ago Up 6 minutes ago a8e7360326ba-infra a8e7360326ba web-pod 645835585e24 docker.io/library/httpd:latest httpd-foreground 6 minutes ago Up 6 minutes ago web-container a8e7360326ba web-pod
podman ps --format="{{.Networks}}" pod-net
cat /etc/profile.d/unauthenticated_http_proxy.sh export HTTP_PROXY=http://192.168.0.1:3128 export HTTPS_PROXY=http://192.168.0.1:3128 export NO_PROXY=example.com,172.5.0.0/16
cat /etc/profile.d/authenticated_http_proxy.sh export HTTP_PROXY=http://USERNAME:PASSWORD@192.168.0.1:3128 export HTTPS_PROXY=http://USERNAME:PASSWORD@192.168.0.1:3128 export NO_PROXY=example.com,172.5.0.0/16
podman run -d --name=myubi --ip=10.88.0.44 registry.access.redhat.com/ubi8/ubi efde5f0a8c723f70dd5cb5dc3d5039df3b962fae65575b08662e0d5b5f9fbe85
podman inspect --format='{{.NetworkSettings.IPAddress}}' myubi 10.88.0.44
systemctl enable --now netavark-dhcp-proxy.socket Created symlink /etc/systemd/system/sockets.target.wants/netavark-dhcp-proxy.socket -> /usr/lib/systemd/system/netavark-dhcp-proxy.socket.
cat /usr/lib/systemd/system/netavark-dhcp-proxy.socket [Unit] Description=Netavark DHCP proxy socket [Socket] ListenStream=%t/podman/nv-proxy.sock SocketMode=0660 [Install] WantedBy=sockets.target
podman network create -d macvlan --interface-name <LAN_INTERFACE> mv1 mv1
podman run --rm --network mv1 -d --name test alpine top 894ae3b6b1081aca2a5d90a9855568eaa533c08a174874be59569d4656f9bc45
podman exec test ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP qlen 1000 link/ether 5a:30:72:bf:13:76 brd ff:ff:ff:ff:ff:ff inet 192.168.188.36/24 brd 192.168.188.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::5830:72ff:febf:1376/64 scope link valid_lft forever preferred_lft forever
podman container inspect test --format {{.NetworkSettings.Networks.mv1.IPAddress}} 192.168.188.36
podman info --format "{{.Host.NetworkBackend}}" cni
systemctl enable --now cni-dhcp.socket Created symlink /etc/systemd/system/sockets.target.wants/cni-dhcp.socket -> /usr/lib/systemd/system/cni-dhcp.socket.
cat /usr/lib/systemd/system/io.podman.dhcp.socket [Unit] Description=CNI DHCP service socket Documentation=https://github.com/containernetworking/plugins/tree/master/plugins/ipam/dhcp PartOf=cni-dhcp.service [Socket] ListenStream=/run/cni/dhcp.sock SocketMode=0660 SocketUser=root SocketGroup=root RemoveOnStop=true [Install] WantedBy=sockets.target
systemctl status io.podman.dhcp.socket systemctl status cni-dhcp.socket ● cni-dhcp.socket - CNI DHCP service socket Loaded: loaded (/usr/lib/systemd/system/cni-dhcp.socket; enabled; vendor preset: disabled) Active: active (listening) since Mon 2025-01-06 08:39:35 EST; 33s ago Docs: https://github.com/containernetworking/plugins/tree/master/plugins/ipam/dhcp Listen: /run/cni/dhcp.sock (Stream) Tasks: 0 (limit: 11125) Memory: 4.0K CGroup: /system.slice/cni-dhcp.socket
cp /usr/share/containers/containers.conf /etc/containers/
network_backend="netavark"
podman system reset
reboot
cat /etc/containers/containers.conf [network] network_backend="netavark"
cp /usr/share/containers/containers.conf /etc/containers/
network_backend="cni"
podman system reset
reboot
cat /etc/containers/containers.conf [network] network_backend="cni"
podman ps -a --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD 5df5c48fea87 registry.access.redhat.com/ubi8/ubi:latest /bin/bash Less than a second ago Up Less than a second ago myubi 223df6b390b4 3afdcd93de3e k8s.gcr.io/pause:3.1 Less than a second ago Up Less than a second ago 223df6b390b4-infra 223df6b390b4
podman generate kube mypod > mypod.yaml
cat mypod.yaml Generation of Kubernetes YAML is still under development! # Save the output of this file and use kubectl create -f to import it into Kubernetes. # Created with podman-1.6.4 apiVersion: v1 kind: Pod metadata: creationTimestamp: "2020-06-09T10:31:56Z" labels: app: mypod name: mypod spec: containers: - command: - /bin/bash env: - name: PATH value: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin - name: TERM value: xterm - name: HOSTNAME - name: container value: oci image: registry.access.redhat.com/ubi8/ubi:latest name: myubi resources: {} securityContext: allowPrivilegeEscalation: true capabilities: {} privileged: false readOnlyRootFilesystem: false tty: true workingDir: / status: {}
oc create myapp --image=me/myapp:v1 -o yaml --dry-run > myapp.yaml
podman play kube mypod.yaml Pod: b8c5b99ba846ccff76c3ef257e5761c2d8a5ca4d7ffa3880531aec79c0dacb22 Container: 848179395ebd33dd91d14ffbde7ae273158d9695a081468f487af4e356888ece
podman pod ps POD ID NAME STATUS CREATED # OF CONTAINERS INFRA ID b8c5b99ba846 mypod Running 19 seconds ago 2 aa4220eaf4bb
podman ps -a --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD 848179395ebd registry.access.redhat.com/ubi8/ubi:latest /bin/bash About a minute ago Up About a minute ago myubi b8c5b99ba846 aa4220eaf4bb k8s.gcr.io/pause:3.1 About a minute ago Up About a minute ago b8c5b99ba846-infra b8c5b99ba846
oc create -f mypod.yaml
├── mariadb-conf │ ├── Containerfile │ ├── my.cnf
cat mariadb-conf/Containerfile FROM docker.io/library/mariadb COPY my.cnf /etc/mysql/my.cnf
Port or socket location where to connect port = 3306 socket = /run/mysqld/mysqld.sock Import all .cnf files from the configuration directory [mariadbd] skip-host-cache skip-name-resolve bind-address = 127.0.0.1 !includedir /etc/mysql/mariadb.conf.d/ !includedir /etc/mysql/conf.d/
cd mariadb-conf podman build -t mariadb-conf . cd .. STEP 1: FROM docker.io/library/mariadb Trying to pull docker.io/library/mariadb:latest Getting image source signatures Copying blob 7b1a6ab2e44d done Storing signatures STEP 2: COPY my.cnf /etc/mysql/my.cnf STEP 3: COMMIT mariadb-conf --> ffae584aa6e Successfully tagged localhost/mariadb-conf:latest ffae584aa6e733ee1cdf89c053337502e1089d1620ff05680b6818a96eec3c17
podman images LIST IMAGES REPOSITORY TAG IMAGE ID CREATED SIZE localhost/mariadb-conf latest b66fa0fa0ef2 57 seconds ago 416 MB
podman pod create --name wordpresspod -p 8080:80
podman run --detach --pod wordpresspod -e MYSQL_ROOT_PASSWORD=1234 -e MYSQL_DATABASE=mywpdb -e MYSQL_USER=mywpuser -e MYSQL_PASSWORD=1234 --name mydb localhost/mariadb-conf
podman run --detach --pod wordpresspod -e WORDPRESS_DB_HOST=127.0.0.1 -e WORDPRESS_DB_NAME=mywpdb -e WORDPRESS_DB_USER=mywpuser -e WORDPRESS_DB_PASSWORD=1234 --name myweb docker.io/wordpress
podman ps --pod -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME 9ea56f771915 k8s.gcr.io/pause:3.5 Less than a second ago Up Less than a second ago 0.0.0.0:8080->80/tcp 4b7f054a6f01-infra 4b7f054a6f01 wordpresspod 60e8dbbabac5 localhost/mariadb-conf:latest mariadbd Less than a second ago Up Less than a second ago 0.0.0.0:8080->80/tcp mydb 4b7f054a6f01 wordpresspod 045d3d506e50 docker.io/library/wordpress:latest apache2-foregroun... Less than a second ago Up Less than a second ago 0.0.0.0:8080->80/tcp myweb 4b7f054a6f01 wordpresspod
curl http://localhost:8080/wp-admin/install.php <!DOCTYPE html> <html lang="en-US" xml:lang="en-US"> <head> </head> <body class="wp-core-ui"> <p id="logo">WordPress</p> <h1>Welcome</h1>
podman ps --pod -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME 9ea56f771915 k8s.gcr.io/pause:3.5 Less than a second ago Up Less than a second ago 0.0.0.0:8080->80/tcp 4b7f054a6f01-infra 4b7f054a6f01 wordpresspod 60e8dbbabac5 localhost/mariadb-conf:latest mariadbd Less than a second ago Up Less than a second ago 0.0.0.0:8080->80/tcp mydb 4b7f054a6f01 wordpresspod 045d3d506e50 docker.io/library/wordpress:latest apache2-foregroun... Less than a second ago Up Less than a second ago 0.0.0.0:8080->80/tcp myweb 4b7f054a6f01 wordpresspod
podman generate kube wordpresspod >> wordpresspod.yaml
cat wordpresspod.yaml apiVersion: v1 kind: Pod metadata: creationTimestamp: "2021-12-09T15:09:30Z" labels: app: wordpresspod name: wordpresspod spec: containers: - args: value: podman - name: MYSQL_PASSWORD value: "1234" - name: MYSQL_MAJOR value: "8.0" - name: MYSQL_VERSION value: 8.0.27-1debian10 - name: MYSQL_ROOT_PASSWORD value: "1234" - name: MYSQL_DATABASE value: mywpdb - name: MYSQL_USER value: mywpuser image: mariadb name: mydb ports: - containerPort: 80 hostPort: 8080 protocol: TCP - args: - name: WORDPRESS_DB_NAME value: mywpdb - name: WORDPRESS_DB_PASSWORD value: "1234" - name: WORDPRESS_DB_HOST value: 127.0.0.1 - name: WORDPRESS_DB_USER value: mywpuser image: docker.io/library/wordpress:latest name: myweb
podman rmi localhost/mariadb-conf podman rmi docker.io/library/wordpress podman rmi docker.io/library/mysql
podman play kube wordpress.yaml STEP 1/2: FROM docker.io/library/mariadb STEP 2/2: COPY my.cnf /etc/mysql/my.cnf COMMIT localhost/mariadb-conf:latest --> 428832c45d0 Successfully tagged localhost/mariadb-conf:latest 428832c45d07d78bb9cb34e0296a7dc205026c2fe4d636c54912c3d6bab7f399 Trying to pull docker.io/library/wordpress:latest Getting image source signatures Copying blob 99c3c1c4d556 done Storing signatures Pod: 3e391d091d190756e655219a34de55583eed3ef59470aadd214c1fc48cae92ac Containers: 6c59ebe968467d7fdb961c74a175c88cb5257fed7fb3d375c002899ea855ae1f 29717878452ff56299531f79832723d3a620a403f4a996090ea987233df0bc3d
podman ps --pod -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME a1dbf7b5606c k8s.gcr.io/pause:3.5 3 minutes ago Up 2 minutes ago 0.0.0.0:8080->80/tcp 3e391d091d19-infra 3e391d091d19 wordpresspod 6c59ebe96846 localhost/mariadb-conf:latest mariadbd 2 minutes ago Exited (1) 2 minutes ago 0.0.0.0:8080->80/tcp wordpresspod-mydb 3e391d091d19 wordpresspod 29717878452f docker.io/library/wordpress:latest apache2-foregroun... 2 minutes ago Up 2 minutes ago 0.0.0.0:8080->80/tcp wordpresspod-myweb 3e391d091d19 wordpresspod
curl http://localhost:8080/wp-admin/install.php <!DOCTYPE html> <html lang="en-US" xml:lang="en-US"> <head> </head> <body class="wp-core-ui"> <p id="logo">WordPress</p> <h1>Welcome</h1>
podman play kube --down wordpresspod.yaml Pods stopped: 3e391d091d190756e655219a34de55583eed3ef59470aadd214c1fc48cae92ac Pods removed: 3e391d091d190756e655219a34de55583eed3ef59470aadd214c1fc48cae92ac
podman ps --pod -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME
cat USDHOME/.config/containers/systemd/mysleep.container [Unit] Description=The sleep container After=local-fs.target [Container] Image=registry.access.redhat.com/ubi8-minimal:latest Exec=sleep 1000 Start by default on boot WantedBy=multi-user.target default.target
systemctl --user daemon-reload
systemctl --user status mysleep.service ○ mysleep.service - The sleep container Loaded: loaded (/home/ username /.config/containers/systemd/mysleep.container; generated) Active: inactive (dead)
systemctl --user start mysleep.service
systemctl --user status mysleep.service ● mysleep.service - The sleep container Loaded: loaded (/home/ username /.config/containers/systemd/mysleep.container; generated) Active: active (running) since Thu 2023-02-09 18:07:23 EST; 2s ago Main PID: 265651 (conmon) Tasks: 3 (limit: 76815) Memory: 1.6M CPU: 94ms CGroup:
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 421c8293fc1b registry.access.redhat.com/ubi8-minimal:latest sleep 1000 30 seconds ago Up 10 seconds ago systemd-mysleep
systemctl enable <service>
systemctl --user enable <service>
loginctl enable-linger <username>
systemctl --user daemon-reload
systemctl --user enable container.service
systemctl --user start container.service
systemctl --user status container.service ● container.service - Podman container.service Loaded: loaded (/home/user/.config/systemd/user/container.service; enabled; vendor preset: enabled) Active: active (running) since Wed 2020-09-16 11:56:57 CEST; 8s ago Docs: man:podman-generate-systemd(1) Process: 80602 ExecStart=/usr/bin/podman run --conmon-pidfile //run/user/1000/container.service-pid --cidfile //run/user/1000/container.service-cid -d ubi8-minimal:> Process: 80601 ExecStartPre=/usr/bin/rm -f //run/user/1000/container.service-pid //run/user/1000/container.service-cid (code=exited, status=0/SUCCESS) Main PID: 80617 (conmon) CGroup: /user.slice/user-1000.slice/user@1000.service/container.service ├─ 2870 /usr/bin/podman ├─80612 /usr/bin/slirp4netns --disable-host-loopback --mtu 65520 --enable-sandbox --enable-seccomp -c -e 3 -r 4 --netns-type=path /run/user/1000/netns/cni-> ├─80614 /usr/bin/fuse-overlayfs -o lowerdir=/home/user/.local/share/containers/storage/overlay/l/YJSPGXM2OCDZPLMLXJOW3NRF6Q:/home/user/.local/share/contain> ├─80617 /usr/bin/conmon --api-version 1 -c cbc75d6031508dfd3d78a74a03e4ace1732b51223e72a2ce4aa3bfe10a78e4fa -u cbc75d6031508dfd3d78a74a03e4ace1732b51223e72> └─cbc75d6031508dfd3d78a74a03e4ace1732b51223e72a2ce4aa3bfe10a78e4fa └─80626 /usr/bin/coreutils --coreutils-prog-shebang=sleep /usr/bin/sleep 1d
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES f20988d59920 registry.access.redhat.com/ubi8-minimal:latest top 12 seconds ago Up 11 seconds ago funny_zhukovsky
systemctl --user stop container.service
podman create --name myubi registry.access.redhat.com/ubi8:latest sleep infinity 0280afe98bb75a5c5e713b28de4b7c5cb49f156f1cce4a208f13fee2f75cb453
podman generate systemd --name myubi > ~/.config/systemd/user/container-myubi.service
cat ~/.config/systemd/user/container-myubi.service container-myubi.service autogenerated by Podman 3.3.1 Wed Sep 8 20:34:46 CEST 2021 [Unit] Description=Podman container-myubi.service Documentation=man:podman-generate-systemd(1) Wants=network-online.target After=network-online.target RequiresMountsFor=/run/user/1000/containers [Service] Environment=PODMAN_SYSTEMD_UNIT=%n Restart=on-failure TimeoutStopSec=70 ExecStart=/usr/bin/podman start myubi ExecStop=/usr/bin/podman stop -t 10 myubi ExecStopPost=/usr/bin/podman stop -t 10 myubi PIDFile=/run/user/1000/containers/overlay-containers/9683103f58a32192c84801f0be93446cb33c1ee7d9cdda225b78049d7c5deea4/userdata/conmon.pid Type=forking [Install] WantedBy=multi-user.target default.target
podman pull registry.access.redhat.com/ubi8/httpd-24
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.access.redhat.com/ubi8/httpd-24 latest 8594be0a0b57 2 weeks ago 462 MB
podman create --name httpd -p 8080:8080 registry.access.redhat.com/ubi8/httpd-24 cdb9f981cf143021b1679599d860026b13a77187f75e46cc0eac85293710a4b1
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES cdb9f981cf14 registry.access.redhat.com/ubi8/httpd-24:latest /usr/bin/run-http... 5 minutes ago Created 0.0.0.0:8080->8080/tcp httpd
podman generate systemd --new --files --name httpd /root/container-httpd.service
cat /root/container-httpd.service container-httpd.service autogenerated by Podman 3.3.1 Wed Sep 8 20:41:44 CEST 2021 [Unit] Description=Podman container-httpd.service Documentation=man:podman-generate-systemd(1) Wants=network-online.target After=network-online.target RequiresMountsFor=%t/containers [Service] Environment=PODMAN_SYSTEMD_UNIT=%n Restart=on-failure TimeoutStopSec=70 ExecStartPre=/bin/rm -f %t/%n.ctr-id ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --sdnotify=conmon --cgroups=no-conmon --rm -d --replace --name httpd -p 8080:8080 registry.access.redhat.com/ubi8/httpd-24 ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id Type=notify NotifyAccess=all [Install] WantedBy=multi-user.target default.target
cp -Z container-httpd.service /etc/systemd/system
systemctl daemon-reload systemctl enable --now container-httpd.service Created symlink /etc/systemd/system/multi-user.target.wants/container-httpd.service -> /etc/systemd/system/container-httpd.service. Created symlink /etc/systemd/system/default.target.wants/container-httpd.service -> /etc/systemd/system/container-httpd.service.
systemctl status container-httpd.service ● container-httpd.service - Podman container-httpd.service Loaded: loaded (/etc/systemd/system/container-httpd.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2021-08-24 09:53:40 EDT; 1min 5s ago Docs: man:podman-generate-systemd(1) Process: 493317 ExecStart=/usr/bin/podman run --conmon-pidfile /run/container-httpd.pid --cidfile /run/container-httpd.ctr-id --cgroups=no-conmon -d --repla> Process: 493315 ExecStartPre=/bin/rm -f /run/container-httpd.pid /run/container-httpd.ctr-id (code=exited, status=0/SUCCESS) Main PID: 493435 (conmon)
podman pod create --name systemd-pod 11d4646ba41b1fffa51c108cbdf97cfab3213f7bd9b3e1ca52fe81b90fed5577
podman pod ps POD ID NAME STATUS CREATED # OF CONTAINERS INFRA ID 11d4646ba41b systemd-pod Created 40 seconds ago 1 8a428b257111 11d4646ba41b1fffa51c108cbdf97cfab3213f7bd9b3e1ca52fe81b90fed5577
podman create --pod systemd-pod --name container0 registry.access.redhat.com/ubi 8 top podman create --pod systemd-pod --name container1 registry.access.redhat.com/ubi 8 top
podman ps -a --pod CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES POD ID PODNAME 24666f47d9b2 registry.access.redhat.com/ubi8:latest top 3 minutes ago Created container0 3130f724e229 systemd-pod 56eb1bf0cdfe k8s.gcr.io/pause:3.2 4 minutes ago Created 3130f724e229-infra 3130f724e229 systemd-pod 62118d170e43 registry.access.redhat.com/ubi8:latest top 3 seconds ago Created container1 3130f724e229 systemd-pod
podman generate systemd --files --name systemd-pod /home/user1/pod-systemd-pod.service /home/user1/container-container0.service /home/user1/container-container1.service
cat pod-systemd-pod.service pod-systemd-pod.service autogenerated by Podman 3.3.1 Wed Sep 8 20:49:17 CEST 2021 [Unit] Description=Podman pod-systemd-pod.service Documentation=man:podman-generate-systemd(1) Wants=network-online.target After=network-online.target RequiresMountsFor= Requires=container-container0.service container-container1.service Before=container-container0.service container-container1.service [Service] Environment=PODMAN_SYSTEMD_UNIT=%n Restart=on-failure TimeoutStopSec=70 ExecStart=/usr/bin/podman start bcb128965b8e-infra ExecStop=/usr/bin/podman stop -t 10 bcb128965b8e-infra ExecStopPost=/usr/bin/podman stop -t 10 bcb128965b8e-infra PIDFile=/run/user/1000/containers/overlay-containers/1dfdcf20e35043939ea3f80f002c65c00d560e47223685dbc3230e26fe001b29/userdata/conmon.pid Type=forking [Install] WantedBy=multi-user.target default.target
cat container-container0.service container-container0.service autogenerated by Podman 3.3.1 Wed Sep 8 20:49:17 CEST 2021 [Unit] Description=Podman container-container0.service Documentation=man:podman-generate-systemd(1) Wants=network-online.target After=network-online.target RequiresMountsFor=/run/user/1000/containers BindsTo=pod-systemd-pod.service After=pod-systemd-pod.service [Service] Environment=PODMAN_SYSTEMD_UNIT=%n Restart=on-failure TimeoutStopSec=70 ExecStart=/usr/bin/podman start container0 ExecStop=/usr/bin/podman stop -t 10 container0 ExecStopPost=/usr/bin/podman stop -t 10 container0 PIDFile=/run/user/1000/containers/overlay-containers/4bccd7c8616ae5909b05317df4066fa90a64a067375af5996fdef9152f6d51f5/userdata/conmon.pid Type=forking [Install] WantedBy=multi-user.target default.target
cat container-container1.service
cp pod-systemd-pod.service container-container0.service container-container1.service USDHOME/.config/systemd/user
systemctl enable --user pod-systemd-pod.service Created symlink /home/user1/.config/systemd/user/multi-user.target.wants/pod-systemd-pod.service -> /home/user1/.config/systemd/user/pod-systemd-pod.service. Created symlink /home/user1/.config/systemd/user/default.target.wants/pod-systemd-pod.service -> /home/user1/.config/systemd/user/pod-systemd-pod.service.
systemctl is-enabled pod-systemd-pod.service enabled
podman run --label "io.containers.autoupdate=image" --name myubi -dt registry.access.redhat.com/ubi8/ubi-init top bc219740a210455fa27deacc96d50a9e20516492f1417507c13ce1533dbdcd9d
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 76465a5e2933 registry.access.redhat.com/8/ubi-init:latest top 24 seconds ago Up 23 seconds ago myubi
podman generate systemd --new --files --name myubi /root/container-myubi.service
cp -Z ~/container-myubi.service /usr/lib/systemd/system
systemctl daemon-reload
systemctl start container-myubi.service systemctl status container-myubi.service
podman auto-update
cat /usr/lib/systemd/system/podman-auto-update.service [Unit] Description=Podman auto-update service Documentation=man:podman-auto-update(1) Wants=network.target After=network-online.target [Service] Type=oneshot ExecStart=/usr/bin/podman auto-update [Install] WantedBy=multi-user.target default.target
cat /usr/lib/systemd/system/podman-auto-update.timer [Unit] Description=Podman auto-update timer [Timer] OnCalendar=daily Persistent=true [Install] WantedBy=timers.target
systemctl enable podman-auto-update.timer
systemctl start podman-auto-update.timer
systemctl list-timers --all NEXT LEFT LAST PASSED UNIT ACTIVATES Wed 2020-12-09 00:00:00 CET 9h left n/a n/a podman-auto-update.timer podman-auto-update.service
- name: Configure Podman hosts: managed-node-01.example.com tasks: - name: Create a web application and a database ansible.builtin.include_role: name: rhel-system-roles.podman vars: podman_create_host_directories: true podman_firewall: - port: 8080-8081/tcp state: enabled - port: 12340/tcp state: enabled podman_selinux_ports: - ports: 8080-8081 setype: http_port_t podman_kube_specs: - state: started run_as_user: dbuser run_as_group: dbgroup kube_file_content: apiVersion: v1 kind: Pod metadata: name: db spec: containers: - name: db image: quay.io/linux-system-roles/mysql:5.6 ports: - containerPort: 1234 hostPort: 12340 volumeMounts: - mountPath: /var/lib/db:Z name: db volumes: - name: db hostPath: path: /var/lib/db - state: started run_as_user: webapp run_as_group: webapp kube_file_src: /path/to/webapp.yml
ansible-playbook --syntax-check --ask-vault-pass ~/playbook.yml
ansible-playbook --ask-vault-pass ~/playbook.yml
- name: Configure Podman hosts: managed-node-01.example.com tasks: - name: Start Apache server on port 8080 ansible.builtin.include_role: name: rhel-system-roles.podman vars: podman_firewall: - port: 8080/tcp state: enabled podman_kube_specs: - state: started kube_file_content: apiVersion: v1 kind: Pod metadata: name: ubi8-httpd spec: containers: - name: ubi8-httpd image: registry.access.redhat.com/ubi8/httpd-24 ports: - containerPort: 8080 hostPort: 8080 volumeMounts: - mountPath: /var/www/html:Z name: ubi8-html volumes: - name: ubi8-html persistentVolumeClaim: claimName: ubi8-html-volume
ansible-playbook --syntax-check ~/playbook.yml
ansible-playbook ~/playbook.yml
cat ~/certificate.pem -----BEGIN CERTIFICATE----- -----END CERTIFICATE----- cat ~/key.pem -----BEGIN PRIVATE KEY----- -----END PRIVATE KEY-----
ansible-vault create vault.yml New Vault password: <vault_password> Confirm New Vault password: <vault_password>
root_password: <root_password> certificate: |- -----BEGIN CERTIFICATE----- -----END CERTIFICATE----- key: |- -----BEGIN PRIVATE KEY----- -----END PRIVATE KEY-----
- name: Deploy a wordpress CMS with MySQL database hosts: managed-node-01.example.com vars_files: - vault.yml tasks: - name: Create and run the container ansible.builtin.include_role: name: rhel-system-roles.podman vars: podman_create_host_directories: true podman_activate_systemd_unit: false podman_quadlet_specs: - name: quadlet-demo type: network file_content: | [Network] Subnet=192.168.30.0/24 Gateway=192.168.30.1 Label=app=wordpress - file_src: quadlet-demo-mysql.volume - template_src: quadlet-demo-mysql.container.j2 - file_src: envoy-proxy-configmap.yml - file_src: quadlet-demo.yml - file_src: quadlet-demo.kube activate_systemd_unit: true podman_firewall: - port: 8000/tcp state: enabled - port: 9000/tcp state: enabled podman_secrets: - name: mysql-root-password-container state: present skip_existing: true data: "{{ root_password }}" - name: mysql-root-password-kube state: present skip_existing: true data: | apiVersion: v1 data: password: "{{ root_password | b64encode }}" kind: Secret metadata: name: mysql-root-password-kube - name: envoy-certificates state: present skip_existing: true data: | apiVersion: v1 data: certificate.key: {{ key | b64encode }} certificate.pem: {{ certificate | b64encode }} kind: Secret metadata: name: envoy-certificates
ansible-playbook --syntax-check --ask-vault-pass ~/playbook.yml
ansible-playbook --ask-vault-pass ~/playbook.yml
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
yum install cockpit-podman
podman login registry.redhat.io Username: myuser@mycompany.com Password: <password> Login Succeeded!
podman pull registry.redhat.io/rhel8/skopeo
podman run --rm registry.redhat.io/rhel8/skopeo skopeo inspect docker://registry.access.redhat.com/ubi8/ubi { "Name": "registry.access.redhat.com/ubi8/ubi", "Labels": { "architecture": "x86_64", "name": "ubi8", "summary": "Provides the latest release of Red Hat Universal Base Image 8.", "url": "https://access.redhat.com/containers/#/registry.access.redhat.com/ubi8/images/8.2-347", }, "Architecture": "amd64", "Os": "linux", "Layers": [ ], "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "container=oci" ] }
podman run --rm registry.redhat.io/rhel8/skopeo inspect --creds USDUSER:USDPASSWORD docker://USDIMAGE
podman run --rm -v USDAUTHFILE:/auth.json registry.redhat.io/rhel8/skopeo inspect docker://USDIMAGE
podman run --privileged --rm -v USDHOME/.local/share/containers/storage:/var/lib/containers/storage registry.redhat.io/rhel8/skopeo skopeo copy docker://registry.access.redhat.com/ubi8/ubi containers-storage:registry.access.redhat.com/ubi8/ubi
podman images REPOSITORY TAG IMAGE ID CREATED SIZE registry.access.redhat.com/ubi8/ubi latest ecbc6f53bba0 8 weeks ago 211 MB
podman login registry.redhat.io Username: myuser@mycompany.com Password: <password> Login Succeeded!
podman run --rm --device /dev/fuse -it registry.redhat.io/rhel8/buildah /bin/bash
buildah from registry.access.redhat.com/ubi8 ubi8-working-container
buildah run --isolation=chroot ubi8-working-container ls / bin boot dev etc home lib lib64 lost+found media mnt opt proc root run sbin srv
buildah images REPOSITORY TAG IMAGE ID CREATED SIZE registry.access.redhat.com/ubi8 latest ecbc6f53bba0 5 weeks ago 211 MB
buildah containers CONTAINER ID BUILDER IMAGE ID IMAGE NAME CONTAINER NAME 0aaba7192762 * ecbc6f53bba0 registry.access.redhat.com/ub... ubi8-working-container
buildah push ecbc6f53bba0 registry.example.com:5000/ubi8/ubi
podman run --privileged --name=privileged_podman registry.access.redhat.com//podman podman run ubi8 echo hello Resolved "ubi8" as an alias (/etc/containers/registries.conf.d/001-rhel-shortnames.conf) Trying to pull registry.access.redhat.com/ubi8:latest Storing signatures hello
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 52537876caf4 registry.access.redhat.com/ubi8/podman podman run ubi8 e... 30 seconds ago Exited (0) 13 seconds ago privileged_podman
podman run --name=unprivileged_podman --security-opt label=disable --user podman --device /dev/fuse registry.access.redhat.com/ubi8/podman podman run ubi8 echo hello
podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a47b26290f43 podman run ubi8 e... 30 seconds ago Exited (0) 13 seconds ago unprivileged_podman
podman login registry.redhat.io
podman run --privileged --name podman_container -it registry.redhat.io/rhel8/podman /bin/bash
vi Containerfile FROM registry.access.redhat.com/ubi8/ubi RUN yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm RUN yum -y install moon-buggy && yum clean all CMD ["/usr/bin/moon-buggy"]
podman build -t moon-buggy .
podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/moon-buggy latest c97c58abb564 13 seconds ago 1.67 GB registry.access.redhat.com/ubi8/ubi latest 4199acc83c6a 132seconds ago 213 MB
podman run -it --name moon moon-buggy
podman tag moon-buggy registry.example.com/moon-buggy
podman push registry.example.com/moon-buggy
yum -y install buildah
buildah -h
buildah from registry.access.redhat.com/ubi8/ubi Getting image source signatures Copying blob... Writing manifest to image destination Storing signatures ubi-working-container
buildah images REPOSITORY TAG IMAGE ID CREATED SIZE registry.access.redhat.com/ubi8/ubi latest 272209ff0ae5 2 weeks ago 234 MB
buildah containers CONTAINER ID BUILDER IMAGE ID IMAGE NAME CONTAINER NAME 01eab9588ae1 * 272209ff0ae5 registry.access.redhat.com/ub... ubi-working-container
cat Containerfile FROM registry.access.redhat.com/ubi8/ubi ADD myecho /usr/local/bin ENTRYPOINT "/usr/local/bin/myecho"
cat myecho echo "This container works!"
chmod 755 myecho
buildah bud -t myecho . STEP 1: FROM registry.access.redhat.com/ubi8/ubi STEP 2: ADD myecho /usr/local/bin STEP 3: ENTRYPOINT "/usr/local/bin/myecho" STEP 4: COMMIT myecho Storing signatures
buildah images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/myecho latest b28cd00741b3 About a minute ago 234 MB
podman run --name=myecho localhost/myecho This container works!
podman ps -a 0d97517428d localhost/myecho 12 seconds ago Exited (0) 13 seconds ago myecho
buildah from scratch working-container
scratchmnt=USD(buildah mount working-container) echo USDscratchmnt /var/lib/containers/storage/overlay/be2eaecf9f74b6acfe4d0017dd5534fde06b2fa8de9ed875691f6ccc791c1836/merged
yum install -y --releasever=8 --installroot=USDscratchmnt redhat-release
yum install -y --setopt=reposdir=/etc/yum.repos.d --installroot=USDscratchmnt --setopt=cachedir=/var/cache/dnf httpd
mkdir -p USDscratchmnt/var/www/html echo "Your httpd container from scratch works!" > USDscratchmnt/var/www/html/index.html
buildah config --cmd "/usr/sbin/httpd -DFOREGROUND" working-container buildah config --port 80/tcp working-container buildah commit working-container localhost/myhttpd:latest
podman images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/myhttpd latest 08da72792f60 2 minutes ago 121 MB
podman run -p 8080:80 -d --name myhttpd 08da72792f60
curl localhost:8080 Your httpd container from scratch works!
buildah images REPOSITORY TAG IMAGE ID CREATED SIZE localhost/johndoe/webserver latest dc5fcc610313 46 minutes ago 263 MB docker.io/library/mynewecho latest fa2091a7d8b6 17 hours ago 234 MB docker.io/library/myecho2 latest 4547d2c3e436 6 days ago 234 MB localhost/myecho latest b28cd00741b3 6 days ago 234 MB localhost/ubi-micro-httpd latest c6a7678c4139 12 days ago 152 MB registry.access.redhat.com/ubi8/ubi latest 272209ff0ae5 3 weeks ago 234 MB
buildah rmi localhost/myecho
buildah rmi docker.io/library/mynewecho docker.io/library/myecho2
buildah rmi -a
buildah rmi -f localhost/ubi-micro-httpd
buildah images
buildah run ubi-working-container cat /etc/redhat-release Red Hat Enterprise Linux release 8.4 (Ootpa)
buildah inspect localhost/myecho { "Type": "buildah 0.0.1", "FromImage": "localhost/myecho:latest", "FromImageID": "b28cd00741b38c92382ee806e1653eae0a56402bcd2c8d31bdcd36521bc267a4", "FromImageDigest": "sha256:0f5b06cbd51b464fabe93ce4fe852a9038cdd7c7b7661cd7efef8f9ae8a59585", "Config": "Entrypoint": [ "/bin/sh", "-c", "\"/usr/local/bin/myecho\"" ], }
buildah from localhost/myecho
buildah inspect ubi-working-container { "Type": "buildah 0.0.1", "FromImage": "registry.access.redhat.com/ubi8/ubi:latest", "FromImageID": "272209ff0ae5fe54c119b9c32a25887e13625c9035a1599feba654aa7638262d", "FromImageDigest": "sha256:77623387101abefbf83161c7d5a0378379d0424b2244009282acb39d42f1fe13", "Config": "Container": "ubi-working-container", "ContainerID": "01eab9588ae1523746bb706479063ba103f6281ebaeeccb5dc42b70e450d5ad0", "ProcessLabel": "system_u:system_r:container_t:s0:c162,c1000", "MountLabel": "system_u:object_r:container_file_t:s0:c162,c1000", }
mycontainer=USD(buildah from localhost/myecho) echo USDmycontainer myecho-working-container
mymount=USD(buildah mount USDmycontainer) echo USDmymount /var/lib/containers/storage/overlay/c1709df40031dda7c49e93575d9c8eebcaa5d8129033a58e5b6a95019684cc25/merged
echo 'echo "We modified this container."' >> USDmymount/usr/local/bin/myecho chmod +x USDmymount/usr/local/bin/myecho
buildah commit USDmycontainer containers-storage:myecho2
buildah images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/library/myecho2 latest 4547d2c3e436 4 minutes ago 234 MB localhost/myecho latest b28cd00741b3 56 minutes ago 234 MB
podman run --name=myecho2 docker.io/library/myecho2 This container works! We even modified it.
cat newecho echo "I changed this container" chmod 755 newecho
buildah from myecho:latest myecho-working-container-2
buildah copy myecho-working-container-2 newecho /usr/local/bin
buildah config --entrypoint "/bin/sh -c /usr/local/bin/newecho" myecho-working-container-2
buildah run myecho-working-container-2 -- sh -c '/usr/local/bin/newecho' I changed this container
buildah commit myecho-working-container-2 containers-storage:mynewecho
buildah images REPOSITORY TAG IMAGE ID CREATED SIZE docker.io/library/mynewecho latest fa2091a7d8b6 8 seconds ago 234 MB
podman run -d -p 5000:5000 registry:2
buildah push --tls-verify=false myecho:latest localhost:5000/myecho:latest Getting image source signatures Copying blob sha256:e4efd0 Writing manifest to image destination Storing signatures
curl http://localhost:5000/v2/_catalog {"repositories":["myecho2]} curl http://localhost:5000/v2/myecho2/tags/list {"name":"myecho","tags":["latest"]}
skopeo inspect --tls-verify=false docker://localhost:5000/myecho:latest | less { "Name": "localhost:5000/myecho", "Digest": "sha256:8999ff6050...", "RepoTags": [ "latest" ], "Created": "2021-06-28T14:44:05.919583964Z", "DockerVersion": "", "Labels": { "architecture": "x86_64", "authoritative-source-url": "registry.redhat.io", }
podman pull --tls-verify=false localhost:5000/myecho2 podman run localhost:5000/myecho2 This container works!
buildah push --creds username:password docker.io/library/myecho:latest docker://testaccountXX/myecho:latest
podman run docker.io/testaccountXX/myecho:latest This container works!
buildah from docker.io/testaccountXX/myecho:latest myecho2-working-container-2 podman run myecho-working-container-2
buildah containers CONTAINER ID BUILDER IMAGE ID IMAGE NAME CONTAINER NAME 05387e29ab93 * c37e14066ac7 docker.io/library/myecho:latest myecho-working-container
buildah rm myecho-working-container 05387e29ab93151cf52e9c85c573f3e8ab64af1592b1ff9315db8a10a77d7c22
buildah containers
podman run -dt --name=hc-container -p 8080:8080 --health-cmd='curl http://localhost:8080 || exit 1' --health-interval=0 registry.access.redhat.com/ubi8/httpd-24
podman inspect --format='{{json .State.Health.Status}}' hc-container healthy
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a680c6919fe localhost/hc-container:latest /usr/bin/run-http... 2 minutes ago Up 2 minutes (healthy) hc-container
podman healthcheck run hc-container healthy
cat Containerfile FROM registry.access.redhat.com/ubi8/httpd-24 EXPOSE 8080 HEALTHCHECK CMD curl http://localhost:8080 || exit 1
podman build --format=docker -t hc-container . STEP 1/3: FROM registry.access.redhat.com/ubi8/httpd-24 STEP 2/3: EXPOSE 8080 --> 5aea97430fd STEP 3/3: HEALTHCHECK CMD curl http://localhost:8080 || exit 1 COMMIT health-check Successfully tagged localhost/health-check:latest a680c6919fe6bf1a79219a1b3d6216550d5a8f83570c36d0dadfee1bb74b924e
podman run -dt --name=hc-container localhost/hc-container
podman inspect --format='{{json .State.Health.Status}}' hc-container healthy
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a680c6919fe localhost/hc-container:latest /usr/bin/run-http... 2 minutes ago Up 2 minutes (healthy) hc-container
podman healthcheck run hc-container healthy
podman system df TYPE TOTAL ACTIVE SIZE RECLAIMABLE Images 3 2 1.085GB 233.4MB (0%) Containers 2 0 28.17kB 28.17kB (100%) Local Volumes 3 0 0B 0B (0%)
podman system df -v Images space usage: REPOSITORY TAG IMAGE ID CREATED SIZE SHARED SIZE UNIQUE SIZE CONTAINERS registry.access.redhat.com/ubi8 latest b1e63aaae5cf 13 days 233.4MB 233.4MB 0B 0 registry.access.redhat.com/ubi8/httpd-24 latest 0d04740850e8 13 days 461.5MB 0B 461.5MB 1 registry.redhat.io/rhel8/podman latest dce10f591a2d 13 days 390.6MB 233.4MB 157.2MB 1 Containers space usage: CONTAINER ID IMAGE COMMAND LOCAL VOLUMES SIZE CREATED STATUS NAMES 311180ab99fb 0d04740850e8 /usr/bin/run-httpd 0 28.17kB 16 hours exited hc1 bedb6c287ed6 dce10f591a2d podman run ubi8 echo hello 0 0B 11 hours configured dazzling_tu Local Volumes space usage: VOLUME NAME LINKS SIZE 76de0efa83a3dae1a388b9e9e67161d28187e093955df185ea228ad0b3e435d0 0 0B 8a1b4658aecc9ff38711a2c7f2da6de192c5b1e753bb7e3b25e9bf3bb7da8b13 0 0B d9cab4f6ccbcf2ac3cd750d2efff9d2b0f29411d430a119210dd242e8be20e26 0 0B
podman system info host: arch: amd64 buildahVersion: 1.22.3 cgroupControllers: [] cgroupManager: cgroupfs cgroupVersion: v1 conmon: package: conmon-2.0.29-1.module+el8.5.0+12381+e822eb26.x86_64 path: /usr/bin/conmon version: 'conmon version 2.0.29, commit: 7d0fa63455025991c2fc641da85922fde889c91b' cpus: 2 distribution: distribution: '"rhel"' version: "8.5" eventLogger: file hostname: localhost.localdomain idMappings: gidmap: - container_id: 0 host_id: 1000 size: 1 - container_id: 1 host_id: 100000 size: 65536 uidmap: - container_id: 0 host_id: 1000 size: 1 - container_id: 1 host_id: 100000 size: 65536 kernel: 4.18.0-323.el8.x86_64 linkmode: dynamic memFree: 352288768 memTotal: 2819129344 ociRuntime: name: runc package: runc-1.0.2-1.module+el8.5.0+12381+e822eb26.x86_64 path: /usr/bin/runc version: |- runc version 1.0.2 spec: 1.0.2-dev go: go1.16.7 libseccomp: 2.5.1 os: linux remoteSocket: path: /run/user/1000/podman/podman.sock security: apparmorEnabled: false capabilities: CAP_NET_RAW,CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT rootless: true seccompEnabled: true seccompProfilePath: /usr/share/containers/seccomp.json selinuxEnabled: true serviceIsRemote: false slirp4netns: executable: /usr/bin/slirp4netns package: slirp4netns-1.1.8-1.module+el8.5.0+12381+e822eb26.x86_64 version: |- slirp4netns version 1.1.8 commit: d361001f495417b880f20329121e3aa431a8f90f libslirp: 4.4.0 SLIRP_CONFIG_VERSION_MAX: 3 libseccomp: 2.5.1 swapFree: 3113668608 swapTotal: 3124752384 uptime: 11h 24m 12.52s (Approximately 0.46 days) registries: search: - registry.fedoraproject.org - registry.access.redhat.com - registry.centos.org - docker.io store: configFile: /home/user/.config/containers/storage.conf containerStore: number: 2 paused: 0 running: 0 stopped: 2 graphDriverName: overlay graphOptions: overlay.mount_program: Executable: /usr/bin/fuse-overlayfs Package: fuse-overlayfs-1.7.1-1.module+el8.5.0+12381+e822eb26.x86_64 Version: |- fusermount3 version: 3.2.1 fuse-overlayfs: version 1.7.1 FUSE library version 3.2.1 using FUSE kernel interface version 7.26 graphRoot: /home/user/.local/share/containers/storage graphStatus: Backing Filesystem: xfs Native Overlay Diff: "false" Supports d_type: "true" Using metacopy: "false" imageStore: number: 3 runRoot: /run/user/1000/containers volumePath: /home/user/.local/share/containers/storage/volumes version: APIVersion: 3.3.1 Built: 1630360721 BuiltTime: Mon Aug 30 23:58:41 2021 GitCommit: "" GoVersion: go1.16.7 OsArch: linux/amd64 Version: 3.3.1
podman system prune WARNING! This will remove: - all stopped containers - all stopped pods - all dangling images - all build cache Are you sure you want to continue? [y/N] y
podman run -q --rm --name=myubi registry.access.redhat.com/ubi8/ubi:latest
now=USD(date --iso-8601=seconds) podman events --since=now --stream=false 2023-03-08 14:27:20.696167362 +0100 CET container create d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi,...) 2023-03-08 14:27:20.652325082 +0100 CET image pull registry.access.redhat.com/ubi8/ubi:latest 2023-03-08 14:27:20.795695396 +0100 CET container init d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi...) 2023-03-08 14:27:20.809205161 +0100 CET container start d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi...) 2023-03-08 14:27:20.809903022 +0100 CET container attach d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi...) 2023-03-08 14:27:20.831710446 +0100 CET container died d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi...) 2023-03-08 14:27:20.913786892 +0100 CET container remove d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi...)
journalctl --user -r SYSLOG_IDENTIFIER=podman Mar 08 14:27:20 fedora podman[129324]: 2023-03-08 14:27:20.913786892 +0100 CET m=+0.066920979 container remove Mar 08 14:27:20 fedora podman[129289]: 2023-03-08 14:27:20.696167362 +0100 CET m=+0.079089208 container create d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72f>
podman events --filter event=create 2023-03-08 14:27:20.696167362 +0100 CET container create d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72fe09 (image=registry.access.redhat.com/ubi8/ubi:latest, name=myubi,...)
journalctl --user -r PODMAN_EVENT=create Mar 08 14:27:20 fedora podman[129289]: 2023-03-08 14:27:20.696167362 +0100 CET m=+0.079089208 container create d4748226a2bcd271b1bc4b9f88b54e8271c13ffea9b30529968291c62d72f>
cat ~/.config/containers/containers.conf [engine] events_container_create_inspect_data=true
podman create registry.access.redhat.com/ubi8/ubi:latest 19524fe3c145df32d4f0c9af83e7964e4fb79fc4c397c514192d9d7620a36cd3
now=USD(date --iso-8601=seconds) podman events --since USDnow --stream=false --format "{{.ContainerInspectData}}" | jq ".Config.CreateCommand" [ "/usr/bin/podman", "create", "registry.access.redhat.com/ubi8" ]
journalctl --user -r PODMAN_EVENT=create --all -o json | jq ".PODMAN_CONTAINER_INSPECT_DATA | fromjson" | jq ".Config.CreateCommand" [ "/usr/bin/podman", "create", "registry.access.redhat.com/ubi8" ]
cat counter.py #!/usr/bin/python3 import http.server counter = 0 class handler(http.server.BaseHTTPRequestHandler): def do_GET(s): global counter s.send_response(200) s.send_header('Content-type', 'text/html') s.end_headers() s.wfile.write(b'%d\n' % counter) counter += 1 server = http.server.HTTPServer(('', 8088), handler) server.serve_forever()
cat Containerfile FROM registry.access.redhat.com/ubi8/ubi COPY counter.py /home/counter.py RUN useradd -ms /bin/bash counter RUN yum -y install python3 && chmod 755 /home/counter.py USER counter ENTRYPOINT /home/counter.py
podman build . --tag counter
podman run --name criu-test --detach counter
podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e4f82fd84d48 localhost/counter:latest 5 seconds ago Up 4 seconds ago criu-test
podman inspect criu-test --format "{{.NetworkSettings.IPAddress}}" 10.88.0.247
curl 10.88.0.247:8088 0 curl 10.88.0.247:8088 1
podman container checkpoint criu-test
podman container restore --keep criu-test
curl 10.88.0.247:8080 2 curl 10.88.0.247:8080 3 curl 10.88.0.247:8080 4
podman container checkpoint criu-test --export /tmp/chkpt.tar.gz
podman container restore --import /tmp/chkpt.tar.gz --name counter1 podman container restore --import /tmp/chkpt.tar.gz --name counter2 podman container restore --import /tmp/chkpt.tar.gz --name counter3
podman ps -a --format "{{.ID}} {{.Names}}" a8b2e50d463c counter3 faabc5c27362 counter2 2ce648af11e5 counter1
#\ufe0f podman inspect counter1 --format "{{.NetworkSettings.IPAddress}}" 10.88.0.248 #\ufe0f podman inspect counter2 --format "{{.NetworkSettings.IPAddress}}" 10.88.0.249 #\ufe0f podman inspect counter3 --format "{{.NetworkSettings.IPAddress}}" 10.88.0.250
#\ufe0f curl 10.88.0.248:8080 4 #\ufe0f curl 10.88.0.249:8080 4 #\ufe0f curl 10.88.0.250:8080 4
podman save --output counter.tar counter
scp counter.tar other_host :
ssh other_host podman load --input counter.tar
podman run --name criu-test --detach counter
podman inspect criu-test --format "{{.NetworkSettings.IPAddress}}" 10.88.0.247
curl 10.88.0.247:8080 0 curl 10.88.0.247:8080 1
podman container checkpoint criu-test --export /tmp/chkpt.tar.gz
scp /tmp/chkpt.tar.gz other_host :/tmp/
podman container restore --import /tmp/chkpt.tar.gz
*curl 10.88.0.247:8080* 2
toolbox create <mytoolbox>
sudo toolbox create <mytoolbox> Created container: <mytoolbox> Enter with: toolbox enter
[user@toolbox ~]USD toolbox list IMAGE ID IMAGE NAME CREATED fe0ae375f149 registry.access.redhat.com/ubi{ProductVersion}/toolbox 5 weeks ago CONTAINER ID CONTAINER NAME CREATED STATUS IMAGE NAME 5245b924c2cb <mytoolbox> 7 minutes ago created registry.access.redhat.com/ubi{ProductVersion}/toolbox:8.9-6
[user@toolbox ~]USD toolbox enter <mytoolbox>
⬢ [user@toolbox ~]USD cat /run/.containerenv engine="podman-4.8.2" name=" <mytoolbox> " id="5245b924c2cb..." image="registry.access.redhat.com/ubi{ProductVersion}/toolbox" imageid="fe0ae375f14919cbc0596142e3aff22a70973a36e5a165c75a86ea7ec5d8d65c"
⬢[user@toolbox ~]USD sudo yum install emacs gcc gdb
⬢[user@toolbox ~]USD yum repoquery --info --installed <package_name>
⬢[root@toolbox ~]# yum install systemd
⬢[root@toolbox ~]# j journalctl --boot -0 Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: microcode: updated ear> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: Linux version 6.6.8-10> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: Command line: BOOT_IMA> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: x86/split lock detecti> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: BIOS-provided physical>
⬢[root@toolbox ~]# journalctl --boot -0 --dmesg Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: microcode: updated ear> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: Linux version 6.6.8-10> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: Command line: BOOT_IMA> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: x86/split lock detecti> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: BIOS-provided physical> Jan 02 09:06:48 user-thinkpadp1gen4i.brq.csb kernel: BIOS-e820: [mem 0x0000>
⬢[root@toolbox ~]# yum install nmap
⬢[root@toolbox ~]# nmap -sS scanme.nmap.org Starting Nmap 7.93 ( https://nmap.org ) at 2024-01-02 10:39 CET Stats: 0:01:01 elapsed; 0 hosts completed (0 up), 256 undergoing Ping Scan Ping Scan Timing: About 29.79% done; ETC: 10:43 (0:02:24 remaining) Nmap done: 256 IP addresses (0 hosts up) scanned in 206.45 seconds
⬢ [user@toolbox ~]USD exit
⬢ [user@toolbox ~]USD podman stop <mytoolbox>
⬢ [user@toolbox ~]USD toolbox rm <mytoolbox>
yum install openmpi
. /etc/profile.d/modules.sh
module load mpi/openmpi-x86_64
echo "module load mpi/openmpi-x86_64" >> .bashrc
cat Containerfile FROM registry.access.redhat.com/ubi8/ubi RUN yum -y install openmpi-devel wget && yum clean all RUN wget https://raw.githubusercontent.com/open-mpi/ompi/master/test/simple/ring.c && /usr/lib64/openmpi/bin/mpicc ring.c -o /home/ring && rm -f ring.c
podman build --tag=mpi-ring .
mpirun --mca orte_tmpdir_base /tmp/podman-mpirun podman run --env-host -v /tmp/podman-mpirun:/tmp/podman-mpirun --userns=keep-id --net=host --pid=host --ipc=host mpi-ring /home/ring Rank 2 has cleared MPI_Init Rank 2 has completed ring Rank 2 has completed MPI_Barrier Rank 3 has cleared MPI_Init Rank 3 has completed ring Rank 3 has completed MPI_Barrier Rank 1 has cleared MPI_Init Rank 1 has completed ring Rank 1 has completed MPI_Barrier Rank 0 has cleared MPI_Init Rank 0 has completed ring Rank 0 has completed MPI_Barrier
podman pull registry.redhat.io/rhel8/rsyslog
podman container runlabel install --display rhel8/rsyslog command: podman run --rm --privileged -v /:/host -e HOST=/host -e IMAGE=registry.redhat.io/rhel8/rsyslog:latest -e NAME=rsyslog registry.redhat.io/rhel8/rsyslog:latest /bin/install.sh
podman container runlabel install rhel8/rsyslog command: podman run --rm --privileged -v /:/host -e HOST=/host -e IMAGE=registry.redhat.io/rhel8/rsyslog:latest -e NAME=rsyslog registry.redhat.io/rhel8/rsyslog:latest /bin/install.sh Creating directory at /host//etc/pki/rsyslog Creating directory at /host//etc/rsyslog.d Installing file at /host//etc/rsyslog.conf Installing file at /host//etc/sysconfig/rsyslog Installing file at /host//etc/logrotate.d/syslog
podman container runlabel run --display rhel8/rsyslog command: podman run -d --privileged --name rsyslog --net=host --pid=host -v /etc/pki/rsyslog:/etc/pki/rsyslog -v /etc/rsyslog.conf:/etc/rsyslog.conf -v /etc/sysconfig/rsyslog:/etc/sysconfig/rsyslog -v /etc/rsyslog.d:/etc/rsyslog.d -v /var/log:/var/log -v /var/lib/rsyslog:/var/lib/rsyslog -v /run:/run -v /etc/machine-id:/etc/machine-id -v /etc/localtime:/etc/localtime -e IMAGE=registry.redhat.io/rhel8/rsyslog:latest -e NAME=rsyslog --restart=always registry.redhat.io/rhel8/rsyslog:latest /bin/rsyslog.sh
podman container runlabel run rhel8/rsyslog command: podman run -d --privileged --name rsyslog --net=host --pid=host -v /etc/pki/rsyslog:/etc/pki/rsyslog -v /etc/rsyslog.conf:/etc/rsyslog.conf -v /etc/sysconfig/rsyslog:/etc/sysconfig/rsyslog -v /etc/rsyslog.d:/etc/rsyslog.d -v /var/log:/var/log -v /var/lib/rsyslog:/var/lib/rsyslog -v /run:/run -v /etc/machine-id:/etc/machine-id -v /etc/localtime:/etc/localtime -e IMAGE=registry.redhat.io/rhel8/rsyslog:latest -e NAME=rsyslog --restart=always registry.redhat.io/rhel8/rsyslog:latest /bin/rsyslog.sh 28a0d719ff179adcea81eb63cc90fcd09f1755d5edb121399068a4ea59bd0f53
podman container runlabel uninstall --display rhel8/rsyslog command: podman run --rm --privileged -v /:/host -e HOST=/host -e IMAGE=registry.redhat.io/rhel8/rsyslog:latest -e NAME=rsyslog registry.redhat.io/rhel8/rsyslog:latest /bin/uninstall.sh
podman container runlabel uninstall rhel8/rsyslog command: podman run --rm --privileged -v /:/host -e HOST=/host -e IMAGE=registry.redhat.io/rhel8/rsyslog:latest -e NAME=rsyslog registry.redhat.io/rhel8/rsyslog:latest /bin/uninstall.sh
yum install podman-remote
systemctl enable --now podman.socket
yum install podman-docker
podman-remote info
ls -al /var/run/docker.sock lrwxrwxrwx. 1 root root 23 Nov 4 10:19 /var/run/docker.sock -> /run/podman/podman.sock
yum install podman-remote
systemctl --user enable --now podman.socket
export DOCKER_HOST=unix:///run/user/<uid>/podman//podman.sock
systemctl --user status podman.socket ● podman.socket - Podman API Socket Loaded: loaded (/usr/lib/systemd/user/podman.socket; enabled; vendor preset: enabled) Active: active (listening) since Mon 2021-08-23 10:37:25 CEST; 9min ago Docs: man:podman-system-service(1) Listen: /run/user/1000/podman/podman.sock (Stream) CGroup: /user.slice/user-1000.slice/user@1000.service/podman.socket
podman-remote info
yum install podman-remote
podman system service -t 0 --log-level=debug
podman-remote info
curl -s --unix-socket /run/podman/podman.sock http://d/v1.0.0/libpod/info | jq { "host": { "arch": "amd64", "buildahVersion": "1.15.0", "cgroupVersion": "v1", "conmon": { "package": "conmon-2.0.18-1.module+el8.3.0+7084+c16098dd.x86_64", "path": "/usr/bin/conmon", "version": "conmon version 2.0.18, commit: 7fd3f71a218f8d3a7202e464252aeb1e942d17eb" }, ... "version": { "APIVersion": 1, "Version": "2.0.0", "GoVersion": "go1.14.2", "GitCommit": "", "BuiltTime": "Thu Jan 1 01:00:00 1970", "Built": 0, "OsArch": "linux/amd64" } }
curl -XPOST --unix-socket /run/podman/podman.sock -v 'http://d/v1.0.0/images/create?fromImage=registry.access.redhat.com%2Fubi8%2Fubi' * Trying /run/podman/podman.sock * Connected to d (/run/podman/podman.sock) port 80 (#0) > POST /v1.0.0/images/create?fromImage=registry.access.redhat.com%2Fubi8%2Fubi HTTP/1.1 > Host: d > User-Agent: curl/7.61.1 > Accept: / > < HTTP/1.1 200 OK < Content-Type: application/json < Date: Tue, 20 Oct 2020 13:58:37 GMT < Content-Length: 231 < {"status":"pulling image () from registry.access.redhat.com/ubi8/ubi:latest, registry.redhat.io/ubi8/ubi:latest","error":"","progress":"","progressDetail":{},"id":"ecbc6f53bba0d1923ca9e92b3f747da8353a070fccbae93625bd8b47dbee772e"} * Connection #0 to host d left intact
curl --unix-socket /run/podman/podman.sock -v 'http://d/v1.0.0/libpod/images/json' | jq * Trying /run/podman/podman.sock % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0* Connected to d (/run/podman/podman.sock) port 80 ( 0) > GET /v1.0.0/libpod/images/json HTTP/1.1 > Host: d > User-Agent: curl/7.61.1 > Accept: / > < HTTP/1.1 200 OK < Content-Type: application/json < Date: Tue, 20 Oct 2020 13:59:55 GMT < Transfer-Encoding: chunked < { [12498 bytes data] 100 12485 0 12485 0 0 2032k 0 --:--:-- --:--:-- --:--:-- 2438k * Connection #0 to host d left intact [ { "Id": "ecbc6f53bba0d1923ca9e92b3f747da8353a070fccbae93625bd8b47dbee772e", "RepoTags": [ "registry.access.redhat.com/ubi8/ubi:latest", "registry.redhat.io/ubi8/ubi:latest" ], "Created": "2020-09-01T19:44:12.470032Z", "Size": 210838671, "Labels": { "architecture": "x86_64", "build-date": "2020-09-01T19:43:46.041620", "com.redhat.build-host": "cpt-1008.osbs.prod.upshift.rdu2.redhat.com", ... "maintainer": "Red Hat, Inc.", "name": "ubi8", ... "summary": "Provides the latest release of Red Hat Universal Base Image 8.", "url": "https://access.redhat.com/containers/ /registry.access.redhat.com/ubi8/images/8.2-347", }, "Names": [ "registry.access.redhat.com/ubi8/ubi:latest", "registry.redhat.io/ubi8/ubi:latest" ], ] } ]