Chapter 4. Managing namespace buckets Namespace buckets let you connect data repositories on different providers together, so that you can interact with all of your data through a single unified view. Add the object bucket associated with each provider to the namespace bucket, and access your data through the namespace bucket to see all of your object buckets at once. This lets you write to your preferred storage provider while reading from multiple other storage providers, greatly reducing the cost of migrating to a new storage provider. Note A namespace bucket can only be used if its write target is available and functional. 4.1. Amazon S3 API endpoints for objects in namespace buckets You can interact with objects in the namespace buckets using the Amazon Simple Storage Service (S3) API. Ensure that the credentials provided for the Multicloud Object Gateway (MCG) enables you to perform the AWS S3 namespace bucket operations. You can use the AWS tool, aws-cli to verify that all the operations can be performed on the target bucket. Also, the list bucket which is using this MCG account shows the target bucket. Red Hat OpenShift Data Foundation supports the following namespace bucket operations: ListBuckets ListObjects ListMultipartUploads ListObjectVersions GetObject HeadObject CopyObject PutObject CreateMultipartUpload UploadPartCopy UploadPart ListParts AbortMultipartUpload PubObjectTagging DeleteObjectTagging GetObjectTagging GetObjectAcl PutObjectAcl DeleteObject DeleteObjects See the Amazon S3 API reference documentation for the most up-to-date information about these operations and how to use them. Additional resources Amazon S3 REST API Reference Amazon S3 CLI Reference 4.2. Adding a namespace bucket using the Multicloud Object Gateway CLI and YAML For more information about namespace buckets, see Managing namespace buckets . Depending on the type of your deployment and whether you want to use YAML or the Multicloud Object Gateway (MCG) CLI, choose one of the following procedures to add a namespace bucket: Adding an AWS S3 namespace bucket using YAML Adding an IBM COS namespace bucket using YAML Adding an AWS S3 namespace bucket using the Multicloud Object Gateway CLI Adding an IBM COS namespace bucket using the Multicloud Object Gateway CLI 4.2.1. Adding an AWS S3 namespace bucket using YAML Prerequisites Openshift Container Platform with OpenShift Data Foundation operator installed. Access to the Multicloud Object Gateway (MCG). For information, see Chapter 2, Accessing the Multicloud Object Gateway with your applications . Procedure Create a secret with the credentials: where <namespacestore-secret-name> is a unique NamespaceStore name. You must provide and encode your own AWS access key ID and secret access key using Base64 , and use the results in place of <AWS ACCESS KEY ID ENCODED IN BASE64> and <AWS SECRET ACCESS KEY ENCODED IN BASE64> . Create a NamespaceStore resource using OpenShift custom resource definitions (CRDs). A NamespaceStore represents underlying storage to be used as a read or write target for the data in the MCG namespace buckets. To create a NamespaceStore resource, apply the following YAML: <resource-name> The name you want to give to the resource. <namespacestore-secret-name> The secret created in the step. <namespace-secret> The namespace where the secret can be found. <target-bucket> The target bucket you created for the NamespaceStore. Create a namespace bucket class that defines a namespace policy for the namespace buckets. The namespace policy requires a type of either single or multi . A namespace policy of type single requires the following configuration: <my-bucket-class> The unique namespace bucket class name. <resource> The name of a single NamespaceStore that defines the read and write target of the namespace bucket. A namespace policy of type multi requires the following configuration: <my-bucket-class> A unique bucket class name. <write-resource> The name of a single NamespaceStore that defines the write target of the namespace bucket. <read-resources> A list of the names of the NamespaceStores that defines the read targets of the namespace bucket. Create a bucket using an Object Bucket Class (OBC) resource that uses the bucket class defined in the earlier step using the following YAML: <resource-name> The name you want to give to the resource. <my-bucket> The name you want to give to the bucket. <my-bucket-class> The bucket class created in the step. After the OBC is provisioned by the operator, a bucket is created in the MCG, and the operator creates a Secret and ConfigMap with the same name and in the same namespace as that of the OBC. 4.2.2. Adding an IBM COS namespace bucket using YAML Prerequisites Openshift Container Platform with OpenShift Data Foundation operator installed. Access to the Multicloud Object Gateway (MCG), see Chapter 2, Accessing the Multicloud Object Gateway with your applications . Procedure Create a secret with the credentials: <namespacestore-secret-name> A unique NamespaceStore name. You must provide and encode your own IBM COS access key ID and secret access key using Base64 , and use the results in place of <IBM COS ACCESS KEY ID ENCODED IN BASE64> and <IBM COS SECRET ACCESS KEY ENCODED IN BASE64> . Create a NamespaceStore resource using OpenShift custom resource definitions (CRDs). A NamespaceStore represents underlying storage to be used as a read or write target for the data in the MCG namespace buckets. To create a NamespaceStore resource, apply the following YAML: <IBM COS ENDPOINT> The appropriate IBM COS endpoint. <namespacestore-secret-name> The secret created in the step. <namespace-secret> The namespace where the secret can be found. <target-bucket> The target bucket you created for the NamespaceStore. Create a namespace bucket class that defines a namespace policy for the namespace buckets. The namespace policy requires a type of either single or multi . The namespace policy of type single requires the following configuration: <my-bucket-class> The unique namespace bucket class name. <resource> The name of a single NamespaceStore that defines the read and write target of the namespace bucket. The namespace policy of type multi requires the following configuration: <my-bucket-class> The unique bucket class name. <write-resource> The name of a single NamespaceStore that defines the write target of the namespace bucket. <read-resources> A list of the NamespaceStores names that defines the read targets of the namespace bucket. To create a bucket using an Object Bucket Class (OBC) resource that uses the bucket class defined in the step, apply the following YAML: <resource-name> The name you want to give to the resource. <my-bucket> The name you want to give to the bucket. <my-bucket-class> The bucket class created in the step. After the OBC is provisioned by the operator, a bucket is created in the MCG, and the operator creates a Secret and ConfigMap with the same name and in the same namespace as that of the OBC. 4.2.3. Adding an AWS S3 namespace bucket using the Multicloud Object Gateway CLI Prerequisites Openshift Container Platform with OpenShift Data Foundation operator installed. Access to the Multicloud Object Gateway (MCG), see Chapter 2, Accessing the Multicloud Object Gateway with your applications . Download the MCG command-line interface: Note Specify the appropriate architecture for enabling the repositories using subscription manager. For instance, in case of IBM Z use the following command: Alternatively, you can install the MCG package from the OpenShift Data Foundation RPMs found here https://access.redhat.com/downloads/content/547/ver=4/rhel---8/4/x86_64/package . Note Choose the correct Product Variant according to your architecture. Procedure In the MCG command-line interface, create a NamespaceStore resource. A NamespaceStore represents an underlying storage to be used as a read or write target for the data in MCG namespace buckets. <namespacestore> The name of the NamespaceStore. <AWS ACCESS KEY> and <AWS SECRET ACCESS KEY> The AWS access key ID and secret access key you created for this purpose. <bucket-name> The existing AWS bucket name. This argument tells the MCG which bucket to use as a target bucket for its backing store, and subsequently, data storage and administration. <aws-region-name> The AWS bucket region. Create a namespace bucket class that defines a namespace policy for the namespace buckets. The namespace policy can be either single or multi . To create a namespace bucket class with a namespace policy of type single : <resource-name> The name you want to give the resource. <my-bucket-class> A unique bucket class name. <resource> A single namespace-store that defines the read and write target of the namespace bucket. To create a namespace bucket class with a namespace policy of type multi : <resource-name> The name you want to give the resource. <my-bucket-class> A unique bucket class name. <write-resource> A single namespace-store that defines the write target of the namespace bucket. <read-resources>s A list of namespace-stores separated by commas that defines the read targets of the namespace bucket. Create a bucket using an Object Bucket Class (OBC) resource that uses the bucket class defined in the step. <bucket-name> A bucket name of your choice. <custom-bucket-class> The name of the bucket class created in the step. After the OBC is provisioned by the operator, a bucket is created in the MCG, and the operator creates a Secret and a ConfigMap with the same name and in the same namespace as that of the OBC. 4.2.4. Adding an IBM COS namespace bucket using the Multicloud Object Gateway CLI Prerequisites Openshift Container Platform with OpenShift Data Foundation operator installed. Access to the Multicloud Object Gateway (MCG), see Chapter 2, Accessing the Multicloud Object Gateway with your applications . Download the MCG command-line interface: Note Specify the appropriate architecture for enabling the repositories using subscription manager. For IBM Power, use the following command: For IBM Z, use the following command: Alternatively, you can install the MCG package from the OpenShift Data Foundation RPMs found here https://access.redhat.com/downloads/content/547/ver=4/rhel---8/4/x86_64/package . Note Choose the correct Product Variant according to your architecture. Procedure In the MCG command-line interface, create a NamespaceStore resource. A NamespaceStore represents an underlying storage to be used as a read or write target for the data in the MCG namespace buckets. <namespacestore> The name of the NamespaceStore. <IBM ACCESS KEY> , <IBM SECRET ACCESS KEY> , <IBM COS ENDPOINT> An IBM access key ID, secret access key, and the appropriate regional endpoint that corresponds to the location of the existing IBM bucket. <bucket-name> An existing IBM bucket name. This argument tells the MCG which bucket to use as a target bucket for its backing store, and subsequently, data storage and administration. Create a namespace bucket class that defines a namespace policy for the namespace buckets. The namespace policy requires a type of either single or multi . To create a namespace bucket class with a namespace policy of type single : <resource-name> The name you want to give the resource. <my-bucket-class> A unique bucket class name. <resource> A single NamespaceStore that defines the read and write target of the namespace bucket. To create a namespace bucket class with a namespace policy of type multi : <resource-name> The name you want to give the resource. <my-bucket-class> A unique bucket class name. <write-resource> A single NamespaceStore that defines the write target of the namespace bucket. <read-resources> A comma-separated list of NamespaceStores that defines the read targets of the namespace bucket. Create a bucket using an Object Bucket Class (OBC) resource that uses the bucket class defined in the earlier step. <bucket-name> A bucket name of your choice. <custom-bucket-class> The name of the bucket class created in the step. After the OBC is provisioned by the operator, a bucket is created in the MCG, and the operator creates a Secret and ConfigMap with the same name and in the same namespace as that of the OBC. 4.3. Adding a namespace bucket using the OpenShift Container Platform user interface You can add namespace buckets using the OpenShift Container Platform user interface. For information about namespace buckets, see Managing namespace buckets . Prerequisites Ensure that Openshift Container Platform with OpenShift Data Foundation operator is already installed. Access to the Multicloud Object Gateway (MCG). Procedure On the OpenShift Web Console, navigate to Storage Object Storage Namespace Store tab. Click Create namespace store to create a namespacestore resources to be used in the namespace bucket. Enter a namespacestore name. Choose a provider and region. Either select an existing secret, or click Switch to credentials to create a secret by entering a secret key and secret access key. Enter a target bucket. Click Create . On the Namespace Store tab, verify that the newly created namespacestore is in the Ready state. Repeat steps 2 and 3 until you have created all the desired amount of resources. Navigate to Bucket Class tab and click Create Bucket Class . Choose Namespace BucketClass type radio button. Enter a BucketClass name and click . Choose a Namespace Policy Type for your namespace bucket, and then click . If your namespace policy type is Single , you need to choose a read resource. If your namespace policy type is Multi , you need to choose read resources and a write resource. If your namespace policy type is Cache , you need to choose a Hub namespace store that defines the read and write target of the namespace bucket. Select one Read and Write NamespaceStore which defines the read and write targets of the namespace bucket and click . Review your new bucket class details, and then click Create Bucket Class . Navigate to Bucket Class tab and verify that your newly created resource is in the Ready phase. Navigate to Object Bucket Claims tab and click Create Object Bucket Claim . Enter ObjectBucketClaim Name for the namespace bucket. Select StorageClass as openshift-storage.noobaa.io . Select the BucketClass that you created earlier for your namespacestore from the list. By default, noobaa-default-bucket-class gets selected. Click Create . The namespace bucket is created along with Object Bucket Claim for your namespace. Navigate to Object Bucket Claims tab and verify that the Object Bucket Claim created is in Bound state. Navigate to Object Buckets tab and verify that the your namespace bucket is present in the list and is in Bound state. 4.4. Sharing legacy application data with cloud native application using S3 protocol Many legacy applications use file systems to share data sets. You can access and share the legacy data in the file system by using the S3 operations. To share data you need to do the following: Export the pre-existing file system datasets, that is, RWX volume such as Ceph FileSystem (CephFS) or create a new file system datasets using the S3 protocol. Access file system datasets from both file system and S3 protocol. Configure S3 accounts and map them to the existing or a new file system unique identifiers (UIDs) and group identifiers (GIDs). 4.4.1. Creating a NamespaceStore to use a file system Prerequisites Openshift Container Platform with OpenShift Data Foundation operator installed. Access to the Multicloud Object Gateway (MCG). Procedure Log into the OpenShift Web Console. Click Storage Object Storage . Click the NamespaceStore tab to create NamespaceStore resources to be used in the namespace bucket. Click Create namespacestore . Enter a name for the NamespaceStore. Choose Filesystem as the provider. Choose the Persistent volume claim. Enter a folder name. If the folder name exists, then that folder is used to create the NamespaceStore or else a folder with that name is created. Click Create . Verify the NamespaceStore is in the Ready state. 4.4.2. Creating accounts with NamespaceStore filesystem configuration You can either create a new account with NamespaceStore filesystem configuration or convert an existing normal account into a NamespaceStore filesystem account by editing the YAML. Note You cannot remove a NamespaceStore filesystem configuration from an account. Prerequisites Download the Multicloud Object Gateway (MCG) command-line interface: Procedure Create a new account with NamespaceStore filesystem configuration using the MCG command-line interface. For example: allow_bucket_create Indicates whether the account is allowed to create new buckets. Supported values are true or false . Default value is true . default_resource The NamespaceStore resource on which the new buckets will be created when using the S3 CreateBucket operation. The NamespaceStore must be backed by an RWX (ReadWriteMany) persistent volume claim (PVC). new_buckets_path The filesystem path where directories corresponding to new buckets will be created. The path is inside the filesystem of NamespaceStore filesystem PVCs where new directories are created to act as the filesystem mapping of newly created object bucket classes. nsfs_account_config A mandatory field that indicates if the account is used for NamespaceStore filesystem. nsfs_only Indicates whether the account is used only for NamespaceStore filesystem or not. Supported values are true or false . Default value is false . If it is set to 'true', it limits you from accessing other types of buckets. uid The user ID of the filesystem to which the MCG account will be mapped and it is used to access and manage data on the filesystem gid The group ID of the filesystem to which the MCG account will be mapped and it is used to access and manage data on the filesystem The MCG system sends a response with the account configuration and its S3 credentials: You can list all the custom resource definition (CRD) based accounts by using the following command: If you are interested in a particular account, you can read its custom resource definition (CRD) directly by the account name: 4.4.3. Accessing legacy application data from the openshift-storage namespace When using the Multicloud Object Gateway (MCG) NamespaceStore filesystem (NSFS) feature, you need to have the Persistent Volume Claim (PVC) where the data resides in the openshift-storage namespace. In almost all cases, the data you need to access is not in the openshift-storage namespace, but in the namespace that the legacy application uses. In order to access data stored in another namespace, you need to create a PVC in the openshift-storage namespace that points to the same CephFS volume that the legacy application uses. Procedure Display the application namespace with scc : <application_namespace> Specify the name of the application namespace. For example: Navigate into the application namespace: For example: Ensure that a ReadWriteMany (RWX) PVC is mounted on the pod that you want to consume from the noobaa S3 endpoint using the MCG NSFS feature: Check the mount point of the Persistent Volume (PV) inside your pod. Get the volume name of the PV from the pod: <pod_name> Specify the name of the pod. For example: In this example, the name of the volume for the PVC is cephfs-write-workload-generator-no-cache-pv-claim . List all the mounts in the pod, and check for the mount point of the volume that you identified in the step: For example: Confirm the mount point of the RWX PV in your pod: <mount_path> Specify the path to the mount point that you identified in the step. For example: Ensure that the UID and SELinux labels are the same as the ones that the legacy namespace uses: For example: Get the information of the legacy application RWX PV that you want to make accessible from the openshift-storage namespace: <pv_name> Specify the name of the PV. For example: Ensure that the PVC from the legacy application is accessible from the openshift-storage namespace so that one or more noobaa-endpoint pods can access the PVC. Find the values of the subvolumePath and volumeHandle from the volumeAttributes . You can get these values from the YAML description of the legacy application PV: For example: Use the subvolumePath and volumeHandle values that you identified in the step to create a new PV and PVC object in the openshift-storage namespace that points to the same CephFS volume as the legacy application PV: Example YAML file : 1 The storage capacity of the PV that you are creating in the openshift-storage namespace must be the same as the original PV. 2 The volume handle for the target PV that you create in openshift-storage needs to have a different handle than the original application PV, for example, add -clone at the end of the volume handle. 3 The storage capacity of the PVC that you are creating in the openshift-storage namespace must be the same as the original PVC. Create the PV and PVC in the openshift-storage namespace using the YAML file specified in the step: <YAML_file> Specify the name of the YAML file. For example: Ensure that the PVC is available in the openshift-storage namespace: Navigate into the openshift-storage project: Create the NSFS namespacestore: <nsfs_namespacestore> Specify the name of the NSFS namespacestore. <cephfs_pvc_name> Specify the name of the CephFS PVC in the openshift-storage namespace. For example: Ensure that the noobaa-endpoint pod restarts and that it successfully mounts the PVC at the NSFS namespacestore, for example, /nsfs/legacy-namespace mountpoint: <noobaa_endpoint_pod_name> Specify the name of the noobaa-endpoint pod. For example: Create a MCG user account: <user_account> Specify the name of the MCG user account. <gid_number> Specify the GID number. <uid_number> Specify the UID number. Important Use the same UID and GID as that of the legacy application. You can find it from the output. For example: Create a MCG bucket. Create a dedicated folder for S3 inside the NSFS share on the CephFS PV and PVC of the legacy application pod: For example: Create the MCG bucket using the nsfs/ path: For example: Check the SELinux labels of the folders residing in the PVCs in the legacy application and openshift-storage namespaces: For example: For example: In these examples, you can see that the SELinux labels are not the same which results in permission denied or access issues. Ensure that the legacy application and openshift-storage pods use the same SELinux labels on the files. You can do this in one of the following ways: Section 4.4.3.1, "Changing the default SELinux label on the legacy application project to match the one in the openshift-storage project" . Section 4.4.3.2, "Modifying the SELinux label only for the deployment config that has the pod which mounts the legacy application PVC" . Delete the NSFS namespacestore: Delete the MCG bucket: For example: Delete the MCG user account: For example: Delete the NSFS namespacestore: For example: Delete the PV and PVC: Important Before you delete the PV and PVC, ensure that the PV has a retain policy configured. <cephfs_pv_name> Specify the CephFS PV name of the legacy application. <cephfs_pvc_name> Specify the CephFS PVC name of the legacy application. For example: 4.4.3.1. Changing the default SELinux label on the legacy application project to match the one in the openshift-storage project Display the current openshift-storage namespace with sa.scc.mcs : Edit the legacy application namespace, and modify the sa.scc.mcs with the value from the sa.scc.mcs of the openshift-storage namespace: For example: For example: Restart the legacy application pod. A relabel of all the files take place and now the SELinux labels match with the openshift-storage deployment. 4.4.3.2. Modifying the SELinux label only for the deployment config that has the pod which mounts the legacy application PVC Create a new scc with the MustRunAs and seLinuxOptions options, with the Multi Category Security (MCS) that the openshift-storage project uses. Example YAML file: Create a service account for the deployment and add it to the newly created scc . Create a service account: <service_account_name>` Specify the name of the service account. For example: Add the service account to the newly created scc : For example: Patch the legacy application deployment so that it uses the newly created service account. This allows you to specify the SELinux label in the deployment: For example: Edit the deployment to specify the security context to use at the SELinux label in the deployment configuration: Add the following lines: <security_context_value> You can find this value when you execute the command to create a dedicated folder for S3 inside the NSFS share, on the CephFS PV and PVC of the legacy application pod. For example: Ensure that the security context to be used at the SELinux label in the deployment configuration is specified correctly: For example" The legacy application is restarted and begins using the same SELinux labels as the openshift-storage namespace.

Commands:
apiVersion: v1 kind: Secret metadata: name: <namespacestore-secret-name> type: Opaque data: AWS_ACCESS_KEY_ID: <AWS ACCESS KEY ID ENCODED IN BASE64> AWS_SECRET_ACCESS_KEY: <AWS SECRET ACCESS KEY ENCODED IN BASE64>
apiVersion: noobaa.io/v1alpha1 kind: NamespaceStore metadata: finalizers: - noobaa.io/finalizer labels: app: noobaa name: <resource-name> namespace: openshift-storage spec: awsS3: secret: name: <namespacestore-secret-name> namespace: <namespace-secret> targetBucket: <target-bucket> type: aws-s3
apiVersion: noobaa.io/v1alpha1 kind: BucketClass metadata: labels: app: noobaa name: <my-bucket-class> namespace: openshift-storage spec: namespacePolicy: type: single: resource: <resource>
apiVersion: noobaa.io/v1alpha1 kind: BucketClass metadata: labels: app: noobaa name: <my-bucket-class> namespace: openshift-storage spec: namespacePolicy: type: Multi multi: writeResource: <write-resource> readResources: - <read-resources> - <read-resources>
apiVersion: objectbucket.io/v1alpha1 kind: ObjectBucketClaim metadata: name: <resource-name> namespace: openshift-storage spec: generateBucketName: <my-bucket> storageClassName: openshift-storage.noobaa.io additionalConfig: bucketclass: <my-bucket-class>
apiVersion: v1 kind: Secret metadata: name: <namespacestore-secret-name> type: Opaque data: IBM_COS_ACCESS_KEY_ID: <IBM COS ACCESS KEY ID ENCODED IN BASE64> IBM_COS_SECRET_ACCESS_KEY: <IBM COS SECRET ACCESS KEY ENCODED IN BASE64>
apiVersion: noobaa.io/v1alpha1 kind: NamespaceStore metadata: finalizers: - noobaa.io/finalizer labels: app: noobaa name: bs namespace: openshift-storage spec: s3Compatible: endpoint: <IBM COS ENDPOINT> secret: name: <namespacestore-secret-name> namespace: <namespace-secret> signatureVersion: v2 targetBucket: <target-bucket> type: ibm-cos
apiVersion: noobaa.io/v1alpha1 kind: BucketClass metadata: labels: app: noobaa name: <my-bucket-class> namespace: openshift-storage spec: namespacePolicy: type: single: resource: <resource>
apiVersion: noobaa.io/v1alpha1 kind: BucketClass metadata: labels: app: noobaa name: <my-bucket-class> namespace: openshift-storage spec: namespacePolicy: type: Multi multi: writeResource: <write-resource> readResources: - <read-resources> - <read-resources>
apiVersion: objectbucket.io/v1alpha1 kind: ObjectBucketClaim metadata: name: <resource-name> namespace: openshift-storage spec: generateBucketName: <my-bucket> storageClassName: openshift-storage.noobaa.io additionalConfig: bucketclass: <my-bucket-class>
subscription-manager repos --enable=rh-odf-4-for-rhel-8-x86_64-rpms yum install mcg
subscription-manager repos --enable=rh-odf-4-for-rhel-8-s390x-rpms
noobaa namespacestore create aws-s3 <namespacestore> --access-key <AWS ACCESS KEY> --secret-key <AWS SECRET ACCESS KEY> --target-bucket <bucket-name> --region <aws-region-name> -n openshift-storage
noobaa bucketclass create namespace-bucketclass single <my-bucket-class> --resource <resource> -n openshift-storage
noobaa bucketclass create namespace-bucketclass multi <my-bucket-class> --write-resource <write-resource> --read-resources <read-resources> -n openshift-storage
noobaa obc create my-bucket-claim -n openshift-storage --app-namespace my-app --bucketclass <custom-bucket-class>
subscription-manager repos --enable=rh-odf-4-for-rhel-8-x86_64-rpms yum install mcg
subscription-manager repos --enable=rh-odf-4-for-rhel-8-ppc64le-rpms
subscription-manager repos --enable=rh-odf-4-for-rhel-8-s390x-rpms
noobaa namespacestore create ibm-cos <namespacestore> --endpoint <IBM COS ENDPOINT> --access-key <IBM ACCESS KEY> --secret-key <IBM SECRET ACCESS KEY> --target-bucket <bucket-name> -n openshift-storage
noobaa bucketclass create namespace-bucketclass single <my-bucket-class> --resource <resource> -n openshift-storage
noobaa bucketclass create namespace-bucketclass multi <my-bucket-class> --write-resource <write-resource> --read-resources <read-resources> -n openshift-storage
noobaa obc create my-bucket-claim -n openshift-storage --app-namespace my-app --bucketclass <custom-bucket-class>
subscription-manager repos --enable=rh-odf-4-for-rhel-8-x86_64-rpms yum install mcg
noobaa account create <noobaa-account-name> [flags]
noobaa account create testaccount --nsfs_account_config --gid 10001 --uid 10001 -default_resource fs_namespacestore
NooBaaAccount spec: allow_bucket_creation: true default_resource: noobaa-default-namespace-store Nsfs_account_config: gid: 10001 new_buckets_path: / nsfs_only: true uid: 10001 INFO[0006] ✅ Exists: Secret "noobaa-account-testaccount" Connection info: AWS_ACCESS_KEY_ID : <aws-access-key-id> AWS_SECRET_ACCESS_KEY : <aws-secret-access-key>
noobaa account list NAME DEFAULT_RESOURCE PHASE AGE testaccount noobaa-default-backing-store Ready 1m17s
oc get noobaaaccount/testaccount -o yaml spec: allow_bucket_creation: true default_resource: noobaa-default-namespace-store nsfs_account_config: gid: 10001 new_buckets_path: / nsfs_only: true uid: 10001
oc get ns <application_namespace> -o yaml | grep scc
oc get ns testnamespace -o yaml | grep scc openshift.io/sa.scc.mcs: s0:c26,c5 openshift.io/sa.scc.supplemental-groups: 1000660000/10000 openshift.io/sa.scc.uid-range: 1000660000/10000
oc project <application_namespace>
oc project testnamespace
oc get pvc NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE cephfs-write-workload-generator-no-cache-pv-claim Bound pvc-aa58fb91-c3d2-475b-bbee-68452a613e1a 10Gi RWX ocs-storagecluster-cephfs 12s
oc get pod NAME READY STATUS RESTARTS AGE cephfs-write-workload-generator-no-cache-1-cv892 1/1 Running 0 11s
oc get pods <pod_name> -o jsonpath='{.spec.volumes[]}'
oc get pods cephfs-write-workload-generator-no-cache-1-cv892 -o jsonpath='{.spec.volumes[]}' {"name":"app-persistent-storage","persistentVolumeClaim":{"claimName":"cephfs-write-workload-generator-no-cache-pv-claim"}}
oc get pods <pod_name> -o jsonpath='{.spec.containers[].volumeMounts}'
oc get pods cephfs-write-workload-generator-no-cache-1-cv892 -o jsonpath='{.spec.containers[].volumeMounts}' [{"mountPath":"/mnt/pv","name":"app-persistent-storage"},{"mountPath":"/var/run/secrets/kubernetes.io/serviceaccount","name":"kube-api-access-8tnc5","readOnly":true}]
oc exec -it <pod_name> -- df <mount_path>
oc exec -it cephfs-write-workload-generator-no-cache-1-cv892 -- df /mnt/pv main Filesystem 1K-blocks Used Available Use% Mounted on 172.30.202.87:6789,172.30.120.254:6789,172.30.77.247:6789:/volumes/csi/csi-vol-cc416d9e-dbf3-11ec-b286-0a580a810213/edcfe4d5-bdcb-4b8e-8824-8a03ad94d67c 10485760 0 10485760 0% /mnt/pv
oc exec -it <pod_name> -- ls -latrZ <mount_path>
oc exec -it cephfs-write-workload-generator-no-cache-1-cv892 -- ls -latrZ /mnt/pv/ total 567 drwxrwxrwx. 3 root root system_u:object_r:container_file_t:s0:c26,c5 2 May 25 06:35 . -rw-r--r--. 1 1000660000 root system_u:object_r:container_file_t:s0:c26,c5 580138 May 25 06:35 fs_write_cephfs-write-workload-generator-no-cache-1-cv892-data.log drwxrwxrwx. 3 root root system_u:object_r:container_file_t:s0:c26,c5 30 May 25 06:35 ..
oc get pv | grep <pv_name>
oc get pv | grep pvc-aa58fb91-c3d2-475b-bbee-68452a613e1a pvc-aa58fb91-c3d2-475b-bbee-68452a613e1a 10Gi RWX Delete Bound testnamespace/cephfs-write-workload-generator-no-cache-pv-claim ocs-storagecluster-cephfs 47s
oc get pv <pv_name> -o yaml
oc get pv pvc-aa58fb91-c3d2-475b-bbee-68452a613e1a -o yaml apiVersion: v1 kind: PersistentVolume metadata: annotations: pv.kubernetes.io/provisioned-by: openshift-storage.cephfs.csi.ceph.com creationTimestamp: "2022-05-25T06:27:49Z" finalizers: - kubernetes.io/pv-protection name: pvc-aa58fb91-c3d2-475b-bbee-68452a613e1a resourceVersion: "177458" uid: 683fa87b-5192-4ccf-af2f-68c6bcf8f500 spec: accessModes: - ReadWriteMany capacity: storage: 10Gi claimRef: apiVersion: v1 kind: PersistentVolumeClaim name: cephfs-write-workload-generator-no-cache-pv-claim namespace: testnamespace resourceVersion: "177453" uid: aa58fb91-c3d2-475b-bbee-68452a613e1a csi: controllerExpandSecretRef: name: rook-csi-cephfs-provisioner namespace: openshift-storage driver: openshift-storage.cephfs.csi.ceph.com nodeStageSecretRef: name: rook-csi-cephfs-node namespace: openshift-storage volumeAttributes: clusterID: openshift-storage fsName: ocs-storagecluster-cephfilesystem storage.kubernetes.io/csiProvisionerIdentity: 1653458225664-8081-openshift-storage.cephfs.csi.ceph.com subvolumeName: csi-vol-cc416d9e-dbf3-11ec-b286-0a580a810213 subvolumePath: /volumes/csi/csi-vol-cc416d9e-dbf3-11ec-b286-0a580a810213/edcfe4d5-bdcb-4b8e-8824-8a03ad94d67c volumeHandle: 0001-0011-openshift-storage-0000000000000001-cc416d9e-dbf3-11ec-b286-0a580a810213 persistentVolumeReclaimPolicy: Delete storageClassName: ocs-storagecluster-cephfs volumeMode: Filesystem status: phase: Bound
cat << EOF >> pv-openshift-storage.yaml apiVersion: v1 kind: PersistentVolume metadata: name: cephfs-pv-legacy-openshift-storage spec: storageClassName: "" accessModes: - ReadWriteMany capacity: storage: 10Gi 1 csi: driver: openshift-storage.cephfs.csi.ceph.com nodeStageSecretRef: name: rook-csi-cephfs-node namespace: openshift-storage volumeAttributes: # Volume Attributes can be copied from the Source testnamespace PV "clusterID": "openshift-storage" "fsName": "ocs-storagecluster-cephfilesystem" "staticVolume": "true" # rootpath is the subvolumePath: you copied from the Source testnamespace PV "rootPath": /volumes/csi/csi-vol-cc416d9e-dbf3-11ec-b286-0a580a810213/edcfe4d5-bdcb-4b8e-8824-8a03ad94d67c volumeHandle: 0001-0011-openshift-storage-0000000000000001-cc416d9e-dbf3-11ec-b286-0a580a810213-clone 2 persistentVolumeReclaimPolicy: Retain volumeMode: Filesystem --- apiVersion: v1 kind: PersistentVolumeClaim metadata: name: cephfs-pvc-legacy namespace: openshift-storage spec: storageClassName: "" accessModes: - ReadWriteMany resources: requests: storage: 10Gi 3 volumeMode: Filesystem # volumeName should be same as PV name volumeName: cephfs-pv-legacy-openshift-storage EOF
oc create -f <YAML_file>
oc create -f pv-openshift-storage.yaml persistentvolume/cephfs-pv-legacy-openshift-storage created persistentvolumeclaim/cephfs-pvc-legacy created
oc get pvc -n openshift-storage NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE cephfs-pvc-legacy Bound cephfs-pv-legacy-openshift-storage 10Gi RWX 14s
oc project openshift-storage Now using project "openshift-storage" on server "https://api.cluster-5f6ng.5f6ng.sandbox65.opentlc.com:6443".
noobaa namespacestore create nsfs <nsfs_namespacestore> --pvc-name=' <cephfs_pvc_name> ' --fs-backend='CEPH_FS'
noobaa namespacestore create nsfs legacy-namespace --pvc-name='cephfs-pvc-legacy' --fs-backend='CEPH_FS'
oc exec -it <noobaa_endpoint_pod_name> -- df -h /nsfs/ <nsfs_namespacestore>
oc exec -it noobaa-endpoint-5875f467f5-546c6 -- df -h /nsfs/legacy-namespace Filesystem Size Used Avail Use% Mounted on 172.30.202.87:6789,172.30.120.254:6789,172.30.77.247:6789:/volumes/csi/csi-vol-cc416d9e-dbf3-11ec-b286-0a580a810213/edcfe4d5-bdcb-4b8e-8824-8a03ad94d67c 10G 0 10G 0% /nsfs/legacy-namespace
noobaa account create <user_account> --allow_bucket_create=true --new_buckets_path='/' --nsfs_only=true --nsfs_account_config=true --gid <gid_number> --uid <uid_number> --default_resource='legacy-namespace'
noobaa account create leguser --allow_bucket_create=true --new_buckets_path='/' --nsfs_only=true --nsfs_account_config=true --gid 0 --uid 1000660000 --default_resource='legacy-namespace'
oc exec -it <pod_name> -- mkdir <mount_path> /nsfs
oc exec -it cephfs-write-workload-generator-no-cache-1-cv892 -- mkdir /mnt/pv/nsfs
noobaa api bucket_api create_bucket '{ "name": " <bucket_name> ", "namespace":{ "write_resource": { "resource": " <nsfs_namespacestore> ", "path": "nsfs/" }, "read_resources": [ { "resource": " <nsfs_namespacestore> ", "path": "nsfs/" }] } }'
noobaa api bucket_api create_bucket '{ "name": "legacy-bucket", "namespace":{ "write_resource": { "resource": "legacy-namespace", "path": "nsfs/" }, "read_resources": [ { "resource": "legacy-namespace", "path": "nsfs/" }] } }'
oc exec -it <noobaa_endpoint_pod_name> -n openshift-storage -- ls -ltraZ /nsfs/ <nsfs_namespacstore>
oc exec -it noobaa-endpoint-5875f467f5-546c6 -n openshift-storage -- ls -ltraZ /nsfs/legacy-namespace total 567 drwxrwxrwx. 3 root root system_u:object_r:container_file_t:s0:c0,c26 2 May 25 06:35 . -rw-r--r--. 1 1000660000 root system_u:object_r:container_file_t:s0:c0,c26 580138 May 25 06:35 fs_write_cephfs-write-workload-generator-no-cache-1-cv892-data.log drwxrwxrwx. 3 root root system_u:object_r:container_file_t:s0:c0,c26 30 May 25 06:35 ..
oc exec -it <pod_name> -- ls -latrZ <mount_path>
oc exec -it cephfs-write-workload-generator-no-cache-1-cv892 -- ls -latrZ /mnt/pv/ total 567 drwxrwxrwx. 3 root root system_u:object_r:container_file_t:s0:c26,c5 2 May 25 06:35 . -rw-r--r--. 1 1000660000 root system_u:object_r:container_file_t:s0:c26,c5 580138 May 25 06:35 fs_write_cephfs-write-workload-generator-no-cache-1-cv892-data.log drwxrwxrwx. 3 root root system_u:object_r:container_file_t:s0:c26,c5 30 May 25 06:35 ..
noobaa bucket delete <bucket_name>
noobaa bucket delete legacy-bucket
noobaa account delete <user_account>
noobaa account delete leguser
noobaa namespacestore delete <nsfs_namespacestore>
noobaa namespacestore delete legacy-namespace
oc delete pv <cephfs_pv_name>
oc delete pvc <cephfs_pvc_name>
oc delete pv cephfs-pv-legacy-openshift-storage
oc delete pvc cephfs-pvc-legacy
oc get ns openshift-storage -o yaml | grep sa.scc.mcs openshift.io/sa.scc.mcs: s0:c26,c0
oc edit ns <appplication_namespace>
oc edit ns testnamespace
oc get ns <application_namespace> -o yaml | grep sa.scc.mcs
oc get ns testnamespace -o yaml | grep sa.scc.mcs openshift.io/sa.scc.mcs: s0:c26,c0
cat << EOF >> scc.yaml allowHostDirVolumePlugin: false allowHostIPC: false allowHostNetwork: false allowHostPID: false allowHostPorts: false allowPrivilegeEscalation: true allowPrivilegedContainer: false allowedCapabilities: null apiVersion: security.openshift.io/v1 defaultAddCapabilities: null fsGroup: type: MustRunAs groups: - system:authenticated kind: SecurityContextConstraints metadata: annotations: name: restricted-pvselinux priority: null readOnlyRootFilesystem: false requiredDropCapabilities: - KILL - MKNOD - SETUID - SETGID runAsUser: type: MustRunAsRange seLinuxContext: seLinuxOptions: level: s0:c26,c0 type: MustRunAs supplementalGroups: type: RunAsAny users: [] volumes: - configMap - downwardAPI - emptyDir - persistentVolumeClaim - projected - secret EOF
oc create -f scc.yaml
oc create serviceaccount <service_account_name>
oc create serviceaccount testnamespacesa
oc adm policy add-scc-to-user restricted-pvselinux -z <service_account_name>
oc adm policy add-scc-to-user restricted-pvselinux -z testnamespacesa
oc patch dc/ <pod_name> '{"spec":{"template":{"spec":{"serviceAccountName": " <service_account_name> "}}}}'
oc patch dc/cephfs-write-workload-generator-no-cache --patch '{"spec":{"template":{"spec":{"serviceAccountName": "testnamespacesa"}}}}'
oc edit dc <pod_name> -n <application_namespace>
spec: template: metadata: securityContext: seLinuxOptions: Level: <security_context_value>
oc edit dc cephfs-write-workload-generator-no-cache -n testnamespace
spec: template: metadata: securityContext: seLinuxOptions: level: s0:c26,c0
oc get dc <pod_name> -n <application_namespace> -o yaml | grep -A 2 securityContext
oc get dc cephfs-write-workload-generator-no-cache -n testnamespace -o yaml | grep -A 2 securityContext securityContext: seLinuxOptions: level: s0:c26,c0