Preserve extended attributes and acls on archlinux build

Failure to do this means that file capabilites are not preserved in the image.
Ping fails to work as a non-root user if cap_net_raw is capability is not set

Signed-off-by: Dan Griffin <dgriffin@peer1.com>
Use dual-stack Dialer when talking to registy

Signed-off-by: Gleb M. Borisov <borisov.gleb@gmail.com>
daemon: resolve the graphdriver to show

graphdriver is not always specified when the log printed, because
it's provided in another thread. This patch will fix this.

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Fix stdout premature EOF

Never close attached stream before both stdout and stderr have written
all their buffered contents. Remove stdinCloser because it is not needed
any more as the stream is closed anyway after attach has finished.

Fixes #3631

Signed-off-by: Andy Goldstein <agoldste@redhat.com>
Add a link to some documentation about exec.

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
registry/endpoint: make it testable

Signed-off-by: Vincent Batts <vbatts@redhat.com>
Add HasValidGITPrefix to utils/utils.go

This will allow us to use a common Git prefix check for both api/clients/commands.go and
builder/job.go. Previous prefix check in build from Git (in builder/jobs.go) ignored valid prefixes such as "git@", "http://" or "https://".

Signed-off-by: Lakshan Perera <lakshan@laktek.com>
Exclude `.wh..wh.*` AUFS metadata on layer export

In an effort to make layer content 'stable' between import
and export from two different graph drivers, we must resolve
an issue where AUFS produces metadata files in its layers
which other drivers explicitly ignore when importing.

The issue presents itself like this:

    - Generate a layer using AUFS
    - On commit of that container, the new stored layer contains
      AUFS metadata files/dirs. The stored layer content has some
      tarsum value: '1234567'
    - `docker save` that image to a USB drive and `docker load`
      into another docker engine instance which uses another
      graph driver, say 'btrfs'
    - On load, this graph driver explicitly ignores any AUFS metadata
      that it encounters. The stored layer content now has some
      different tarsum value: 'abcdefg'.

The only (apparent) useful aufs metadata to keep are the psuedo link
files located at `/.wh..wh.plink/`. Thes files hold information at the
RW layer about hard linked files between this layer and another layer.
The other graph drivers make sure to copy up these psuedo linked files
but I've tested out a few different situations and it seems that this
is unnecessary (In my test, AUFS already copies up the other hard linked
files to the RW layer).

This changeset adds explicit exclusion of the AUFS metadata files and
directories (NOTE: not the whiteout files!) on commit of a container
using the AUFS storage driver.

Also included is a change to the archive package. It now explicitly
ignores the root directory from being included in the resulting tar archive
for 2 reasons: 1) it's unnecessary. 2) It's another difference between
what other graph drivers produce when exporting a layer to a tar archive.

Docker-DCO-1.1-Signed-off-by: Josh Hawn <josh.hawn@docker.com> (github: jlhawn)
Fix compilation issue bringed by #8319

Signed-off-by: Alexandr Morozov <lk4d4@docker.com>
Merge pull request #8846 from LK4D4/fix_compilation

Fix compilation issue bringed by #8319
Add test for #8307.

Docker-DCO-1.1-Signed-off-by: Jessica Frazelle <jess@docker.com> (github: jfrazelle)
fix for iptables cleanup 8307

Docker-DCO-1.1-Signed-off-by: Jessica Frazelle <jess@docker.com> (github: jfrazelle)
Merge pull request #8571 from ncdc/3631-stdout-premature-eof

Fix stdout premature EOF
archive: preserve hardlinks in Tar and Untar

* integration test for preserving hardlinks

Signed-off-by: Vincent Batts <vbatts@redhat.com>
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
archive: example app for diffing directories

By default is a demo of file differences, but can be used to create a
tar of changes between an old and new path.

Signed-off-by: Vincent Batts <vbatts@redhat.com>
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
archive: cleanup and more information

Signed-off-by: Vincent Batts <vbatts@redhat.com>
Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
Merge pull request #8669 from monsterzz/8668-dualstack-registry

Use dual-stack Dialer when talking to registy
Merge pull request #8046 from vbatts/vbatts-archive_preserve_hard_links

archive: preserve hardlinks in Tar and Untar
Merge pull request #8387 from vbatts/vbatts-registry_test_enpoint

registry/endpoint: make it testable
Adds new Docs Style Guide.

Includes changes to mkdocs yml and removes style info from docs Read Me, adding a link instead.

Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)

Conflicts:
	docs/README.md

Revisions to style guide based on review.

Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)

More Style Guide revisions based on review.

Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)

A few more style guide copy edits

Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredlf)