Commit Graph

148 Commits

Author SHA1 Message Date
Sebastiaan van Stijn 0b78efe8fe
Merge pull request #3543 from thaJeztah/remove_the_experiment
remove "Experimental" client field from "docker version"
2022-04-20 22:03:21 +02:00
Sebastiaan van Stijn aaa912c9f7
move commonly used top-level commands to the top of --help
This adds a new annotation to commands that are known to be frequently
used, and allows setting a custom weight/order for these commands to
influence in what order they appear in the --help output.

I'm not entirely happy with the implementation (we could at least use
some helpers for this, and/or make it more generic to group commands
in output), but it could be a start.

For now, limiting this to only be used for the top-level --help, but
we can expand this to subcommands as well if we think it makes sense
to highlight "common" / "commonly used" commands.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-04-08 16:55:41 +02:00
Sebastiaan van Stijn bbc95c7bb7
remove "Experimental" client field from "docker version"
Configuration (enabling/disabling) of Experimental client features
was deprecated in Docker 19.03, and removed in 20.10. Experimental
CLI features are now always enabled. In Docker 20.10, the Experimental
field in `docker version` was kept (but always true).

This patch removes the field from the output (both "pretty" output
and the JSON struct).

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-04-08 15:48:00 +02:00
Sebastiaan van Stijn 51aa683a88
cli/command/system: remove printStorageDriverWarnings()
These warnings were for features that are no longer supported (overlay
on a backingFS without d_type support), or related to the deprecated
devicemapper storage driver.

Removing this function for that reason.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-04-07 22:25:59 +02:00
Sebastiaan van Stijn a1e67401d2
vendor: github.com/docker/docker 8941dcfcc5db4aefc351cd5b5bb4d524823035c0
- updated the default value for `--limit` on `docker search` as the const has been
  removed (added a todo to remove it)
- updated some fixtures to account for `KernelMemoryTCP` no longer being included
  in the output.

full diff: 83b51522df...8941dcfcc5

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-28 17:21:59 +02:00
Sebastiaan van Stijn 4ab70bf61e
linting: fix incorrectly formatted errors (revive)
cli/compose/interpolation/interpolation.go:102:4: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                "invalid interpolation format for %s: %#v. You may need to escape any $ with another $.",
                ^

    cli/command/stack/loader/loader.go:30:30: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                return nil, errors.Errorf("Compose file contains unsupported options:\n\n%s\n",
                                          ^

    cli/command/formatter/formatter.go:76:30: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
            return tmpl, errors.Errorf("Template parsing error: %v\n", err)
                                       ^

    cli/command/formatter/formatter.go:97:24: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
            return errors.Errorf("Template parsing error: %v\n", err)
                                 ^

    cli/command/image/build.go:257:25: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                return errors.Errorf("error checking context: '%s'.", err)
                                     ^

    cli/command/volume/create.go:35:27: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
                        return errors.Errorf("Conflicting options: either specify --name or provide positional arg, not both\n")
                                             ^

    cli/command/container/create.go:160:24: error-strings: error strings should not be capitalized or end with punctuation or a newline (revive)
            return errors.Errorf("failed to remove the CID file '%s': %s \n", cid.path, err)
                                 ^

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-28 10:37:25 +02:00
Djordje Lukic 9c0234bbcb
Output compact JSON by default for --format=json
With this change all `inspect` commands will output a compact JSON
representation of the elements, the default format (indented JSON) stays the
same.

Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-15 15:42:35 +01:00
Silvin Lubecki a4a734df44
Update list commands with better format flag description
including all the directives and a link to the documentation.

Signed-off-by: Silvin Lubecki <silvin.lubecki@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-15 15:35:53 +01:00
Silvin Lubecki 84d47b544e
Add "json" as default value to format flag in all inspect commands.
Signed-off-by: Silvin Lubecki <silvin.lubecki@docker.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-15 15:31:16 +01:00
Sebastiaan van Stijn e40529aa3b
use consistent alias for api/types/registry
Not a fan of aliases, but unfortunately they're sometimes needed. We import both
docker/docker/registry and docker/registry and api/types/registry, so I looked
for which one to continue using an alias, and this was the one "least" used,
and which already used this alias everywhere, except for two places.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-03-04 14:45:34 +01:00
Sebastiaan van Stijn e0299ff862
cli/command/system: remove deprecated io/ioutil
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-02-25 15:42:11 +01:00
Sebastiaan van Stijn 16ece9bb82
system/version: remove dead-code
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-02-24 12:26:18 +01:00
Nicolas De Loof 7b9580df51 Drop support for (archived) Compose-on-Kubernetes
Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
2022-02-22 13:47:34 +01:00
Sebastiaan van Stijn e8fdc3c491
Merge pull request #3230 from thaJeztah/remove_seccomp_warning
info: skip client-side warning about seccomp profile on API >= 1.42
2021-08-24 22:04:58 +02:00
Sebastiaan van Stijn fc85fe4eb8
vendor: update docker to current master (API v1.42)
full diff: 25917217ca...343665850e

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-08-12 13:24:05 +02:00
Sebastiaan van Stijn 8964595692
info: skip client-side warning about seccomp profile on API >= 1.42
This warning will be moved to the daemon-side, similar to how it returns
other warnings. There's work in progress to change the name of the default
profile, so we may need to backport this change to prevent existing clients
from printing an incorrect warning if they're connecting to a newer daemon.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-08-04 16:03:09 +02:00
Brian Goff 4ce521c503
info: print errors to stderr
Errors always need to go to stderr.
This also fixes a test in moby/moby's integration-cli which is checking
to see if errors connecting to the daemon are output on stderr.

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-07-13 11:43:32 +02:00
Sebastiaan van Stijn d738e7c489
docker info: skip API connection if possible
The docker info output contains both "local" and "remote" (daemon-side) information.
The API endpoint to collect daemon information (`/info`) is known to be "heavy",
and (depending on what information is needed) not needed.

This patch checks if the template (`--format`) used requires information from the
daemon, and if not, omits making an API request.

This will improve performance if (for example), the current "context" is requested
from `docker info` or if only plugin information is requested.

Before:

    time docker info --format '{{range  .ClientInfo.Plugins}}Plugin: {{.Name}}, {{end}}'
    Plugin: buildx, Plugin: compose, Plugin: scan,

    ________________________________________________________
    Executed in  301.91 millis    fish           external
       usr time  168.64 millis   82.00 micros  168.56 millis
       sys time  113.72 millis  811.00 micros  112.91 millis

    time docker info --format '{{json .ClientInfo.Plugins}}'

    time docker info --format '{{.ClientInfo.Context}}'
    default

    ________________________________________________________
    Executed in  334.38 millis    fish           external
       usr time  177.23 millis   93.00 micros  177.13 millis
       sys time  124.90 millis  927.00 micros  123.97 millis

    docker context use remote-ssh-daemon
    time docker info --format '{{.ClientInfo.Context}}'
    remote-ssh-daemon

    ________________________________________________________
    Executed in    1.22 secs   fish           external
       usr time  116.93 millis  110.00 micros  116.82 millis
       sys time  144.36 millis  887.00 micros  143.47 millis

And daemon logs:

    Jul 06 12:42:12 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:12.139529947Z" level=debug msg="Calling HEAD /_ping"
    Jul 06 12:42:12 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:12.140772052Z" level=debug msg="Calling HEAD /_ping"
    Jul 06 12:42:12 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:12.163832016Z" level=debug msg="Calling GET /v1.41/info"

After:

    time ./build/docker info --format '{{range  .ClientInfo.Plugins}}Plugin: {{.Name}}, {{end}}'
    Plugin: buildx, Plugin: compose, Plugin: scan,

    ________________________________________________________
    Executed in  139.84 millis    fish           external
       usr time   76.53 millis   62.00 micros   76.46 millis
       sys time   69.25 millis  723.00 micros   68.53 millis

    time ./build/docker info --format '{{.ClientInfo.Context}}'
    default

    ________________________________________________________
    Executed in  136.94 millis    fish           external
       usr time   74.61 millis   74.00 micros   74.54 millis
       sys time   65.77 millis  858.00 micros   64.91 millis

    docker context use remote-ssh-daemon
    time ./build/docker info --format '{{.ClientInfo.Context}}'
    remote-ssh-daemon

    ________________________________________________________
    Executed in    1.02 secs   fish           external
       usr time   74.25 millis   76.00 micros   74.17 millis
       sys time   65.09 millis  643.00 micros   64.44 millis

And daemon logs:

    Jul 06 12:42:55 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:55.313654687Z" level=debug msg="Calling HEAD /_ping"
    Jul 06 12:42:55 remote-ssh-daemon dockerd[14377]: time="2021-07-06T12:42:55.314811624Z" level=debug msg="Calling HEAD /_ping"

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2021-07-06 17:04:34 +02:00
Mathieu Champlon c05f0f5957 Deprecate Kubernetes stack support
Signed-off-by: Mathieu Champlon <mathieu.champlon@docker.com>
2021-07-01 18:39:00 +02:00
Akihiro Suda 05ec0188fa
printServerWarningsLegacy: silence "No oom kill disable support" on cgroup v2
The warning should be ignored on cgroup v2 hosts.

Relevant: 8086443a44

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
2021-05-04 19:35:07 +09:00
Akihiro Suda 731f52cfe8
printServerWarningsLegacy: silence "No kernel memory limit support"
The kernel memory limit is deprecated in Docker 20.10.0,
and its support was removed in runc v1.0.0-rc94.
So, this warning can be safely removed.

Relevant: b8ca7de823

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
2021-05-04 19:17:11 +09:00
Sebastiaan van Stijn 977d3ae046
Always enable experimental features
The CLI disabled experimental features by default, requiring users
to set a configuration option to enable them.

Disabling experimental features was a request from Enterprise users
that did not want experimental features to be accessible.

We are changing this policy, and now enable experimental features
by default. Experimental features may still change and/or removed,
and will be highlighted in the documentation and "usage" output.

For example, the `docker manifest inspect --help` output now shows:

    EXPERIMENTAL:
      docker manifest inspect is an experimental feature.

      Experimental features provide early access to product functionality. These features
      may change between releases without warning or can be removed entirely from a future
      release. Learn more about experimental features: https://docs.docker.com/go/experimental/

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-10-02 15:59:42 +02:00
Sebastiaan van Stijn 6703919c71
Replace vbom.ml/util with fvbommel/sortorder
The vanity domain is down, and the project has moved
to a new location.

vendor check started failing because of this:

    Collecting initial packages
    Download dependencies
    unrecognized import path "vbom.ml/util" (https fetch: Get https://vbom.ml/util?go-get=1: dial tcp: lookup vbom.ml on 169.254.169.254:53: no such host)

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-08-28 15:35:42 +02:00
Tonis Tiigi e531875ff0 support emulated version detection
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2020-07-30 11:38:29 -07:00
Wang Yumu 1f907fb7ba Add DefaultAddressPools to docker info output #40388
Signed-off-by: Wang Yumu <37442693@qq.com>
2020-07-22 01:45:30 +08:00
Silvin Lubecki 7cd6e893a1
Merge pull request #2500 from thaJeztah/version_context
Add "context" to "docker version" and "docker info"
2020-05-07 16:10:16 +02:00
Sebastiaan van Stijn 719169db63
Replace deprecated Cobra command.SetOutput() with command.SetOut()
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-05-07 14:25:59 +02:00
Sebastiaan van Stijn bc938e4dea
docker info: add "context" to output
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-05-07 14:07:22 +02:00
Sebastiaan van Stijn 181e60499f
docker version: add "context" to output
This adds the currently selected "docker context" to the output
of "docker version", which allows users to see which context
is selected to produce the version output, and can be used (for
example), to set the prompt to the currently selected context:

(in `~/.bashrc`):

```bash
function docker_context_prompt() {
        PS1="context: $(docker version --format='{{.Client.Context}}')> "
}

PROMPT_COMMAND=docker_context_prompt
```

After reloading the `~/.bashrc`, the prompt now shows the currently selected
`docker context`:

```bash
$ source ~/.bashrc
context: default> docker context create --docker host=unix:///var/run/docker.sock my-context
my-context
Successfully created context "my-context"
context: default> docker context use my-context
my-context
Current context is now "my-context"
context: my-context> docker context use default
default
Current context is now "default"
context: default>
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-05-07 14:07:15 +02:00
Akihiro Suda dbc61787a7 info: print Cgroup Version
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
2020-04-30 06:48:12 +09:00
Sebastiaan van Stijn d0a80bf445
update docker, replace github.com/docker/pkg/term, github.com/docker/pkg/mount
These packages are now living in their own repository. Updating
docker/docker to replace the dependencies.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-04-22 17:16:13 +02:00
Sebastiaan van Stijn 2c0e93063b
bump gotest.tools v3.0.1 for compatibility with Go 1.14
full diff: https://github.com/gotestyourself/gotest.tools/compare/v2.3.0...v3.0.1

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-02-23 00:28:55 +01:00
Sebastiaan van Stijn 9b549401b6
vendor: update docker to 58c2615208962a458ed94f4b6262eb27e5e021cd
full diff: a9507c6f76...58c2615208

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2020-02-12 18:45:12 +01:00
Rob Gulewich 5ad1d4d4c8 docker run: specify cgroup namespace mode with --cgroupns
Signed-off-by: Rob Gulewich <rgulewich@netflix.com>
2020-01-29 22:50:37 +00:00
Silvin Lubecki 47741f81d1
cli/command/system/info.go:116:68: prettyPrintClientInfo - result 0 (error) is always nil (unparam)
Signed-off-by: Silvin Lubecki <silvin.lubecki@docker.com>
2019-10-31 19:22:20 +01:00
Sebastiaan van Stijn 79aa6cce19
TestFormatInfo: add extra test-case
This case was in a test in the engine repository, where
it is being removed, so add it to the list of existing
tests here.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-10-18 23:40:02 +02:00
Tibor Vass 38c02a9280 vendor: align with engine at b6684a403c99aaf6be5b8ce0bef3c6650fcdcd12
Signed-off-by: Tibor Vass <tibor@docker.com>
2019-10-02 01:47:08 +00:00
Ian Campbell 8635abd662 Use underlying `NewKubernetesConfig` directly from compose-on-kubernetes.
The comment on `github.com/docker/cli/kubernetes.NewKubernetesConfig` said:

    // Deprecated: Use github.com/docker/compose-on-kubernetes/api.NewKubernetesConfig instead

By making this switch in `github.com/docker/cli/context/kubernetes/load.go` we
break a vendoring chain:

`github.com/docker/cli/cli/command`
→ `vendor/github.com/docker/cli/cli/context/kubernetes/load.go`
  → `vendor/github.com/docker/cli/kubernetes`
     → `github.com/docker/compose-on-kubernetes/api/compose/...`

This means that projects which just want `github.com/docker/cli/cli/command`
(which is itself pulled in transitively by
`github.com/docker/cli/cli-plugins/plugin`) which do not themselves need the
compose-on-kubernetes API avoid a huge pile of transitive dependencies.

On one of my private projects the diff on the vendor dir is:

    280 files changed, 21 insertions(+), 211346 deletions(-)

and includes dropping:

* `github.com/docker/compose-on-kubernetes/api/compose/{clone,impersonation}`
* `github.com/docker/compose-on-kubernetes/api/compose/{v1alpha3,v1beta1,v1beta2,v1beta3}`
* `github.com/google/btree`
* `github.com/googleapis/gnostic`
* `github.com/gregjones/httpcache`
* `github.com/peterbourgon/diskv`
* `k8s.io/api/*` (_lots_ of subpackages)
* `k8s.io/client-go/{discovery,kubernetes/scheme}`

and I've gone from:

    $ du -sh vendor/k8s.io/
    8.1M	vendor/k8s.io/

to:

    $ du -sh vendor/k8s.io/
    2.1M	vendor/k8s.io/

(overall I went from 36M → 29M of vendor dir for this particular project)

The change to `cli/command/system/version.go` is just for consistency and
allows us to drop the now unused alias.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-05-14 15:43:15 +01:00
Akihiro Suda f8d4c443ba dial-stdio: fix goroutine leakage
Fix #1736

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
2019-03-22 20:22:00 +09:00
Sebastiaan van Stijn fd769e1aff
Update docker/docker to 827cb09f87964ed38b46502f22a585f2ed4a78e1
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-03-19 22:21:51 +01:00
Sebastiaan van Stijn 26e004797b
Make system prune warning filters human-readable
The warning, printed before running `docker system prune` was printing the
filters in JSON format.

This patch attempts to make the output human readable;

- updating the code, and template to print filters individually
- reducing the indentation (which was quite deep)

Before this patch was applied;

```
docker system prune --filter until=24h --filter label=hello-world --filter label!=foo=bar --filter label=bar=baz

WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all dangling images
        - all dangling build cache
        - Elements to be pruned will be filtered with:
        - label={"label":{"bar=baz":true,"hello-world":true},"label!":{"foo=bar":true},"until":{"24h":true}}
Are you sure you want to continue? [y/N]
```

With this patch applied;

```
WARNING! This will remove:
  - all stopped containers
  - all networks not used by at least one container
  - all dangling images
  - all dangling build cache

  Items to be pruned will be filtered with:
  - label!=foo=bar
  - label!=never=remove-me
  - label=bar=baz
  - label=hello-world
  - label=remove=me
  - until=24h

Are you sure you want to continue? [y/N]
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-03-18 13:57:18 +01:00
Sebastiaan van Stijn 4a0218bb11
Fix system prune warning missing filters from config-file
The warning, printed before runing docker system prune was missing any filter
that was set in the configuration file. In addition, the warning prefixes the
filters with `label=`, which is no longer accurate, now that the prune command
also supports "until" as a filter.

Before this change, only the filters set on the command-line were shown,
and any filter set in the configuration file was missing;

```
mkdir -p ./test-config
echo '{"pruneFilters": ["label!=never=remove-me", "label=remove=me"]}' > test-config/config.json
docker --config=./test-config system prune --filter until=24h --filter label=hello-world --filter label!=foo=bar --filter label=bar=baz

WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all dangling images
        - all dangling build cache
        - Elements to be pruned will be filtered with:
        - label={"label":{"bar=baz":true,"hello-world":true},"label!":{"foo=bar":true},"until":{"24h":true}}
Are you sure you want to continue? [y/N]
```

With this patch applied, both options from the commandline and options set
in the configuration file are shown;

```
mkdir -p ./test-config
echo '{"pruneFilters": ["label!=never=remove-me", "label=remove=me"]}' > test-config/config.json
docker --config=./test-config system prune --filter until=24h --filter label=hello-world --filter label!=foo=bar --filter label=bar=baz

WARNING! This will remove:
        - all stopped containers
        - all networks not used by at least one container
        - all dangling images
        - all dangling build cache
        - Elements to be pruned will be filtered with:
        - filter={"label":{"bar=baz":true,"hello-world":true,"remove=me":true},"label!":{"foo=bar":true,"never=remove-me":true},"until":{"24h":true}}
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-03-18 13:57:09 +01:00
Sebastiaan van Stijn d6a230606c
Merge pull request #1718 from ijc/dial-stdio-npipe-on-windows
dial-stdio: handle connections which lack CloseRead method.
2019-03-13 11:49:25 +01:00
Tibor Vass 81ac432cc2
Merge pull request #1700 from thaJeztah/update_engine
Update docker/docker 8aca18d, containerd v1.2.4
2019-03-12 10:41:51 -07:00
Ian Campbell 0449ad8d06 Revert "Disable `docker system dial-stdio` on Windows"
This reverts commit c41c23813c.

This case is now handled due to the previous commit.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-03-12 14:57:52 +00:00
Ian Campbell 186e7456ac dial-stdio: Close the connection
This was leaking the fd.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-03-12 14:57:40 +00:00
Ian Campbell 8919bbf04d dial-stdio: handle connections which lack CloseRead method.
This happens on Windows when dialing a named pipe (a path which is used by CLI
plugins), in that case some debugging shows:

    DEBU[0000] conn is a *winio.win32MessageBytePipe
    DEBU[0000] conn is a halfReadCloser: false
    DEBU[0000] conn is a halfWriteCloser: true
    the raw stream connection does not implement halfCloser
In such cases we can simply wrap with a nop function since closing for read
isn't too critical.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-03-12 14:52:42 +00:00
Ian Campbell c41c23813c Disable `docker system dial-stdio` on Windows
The `conn` here is `*winio.win32MessageBytePipe` which does not have a
`CloseRead` method (it does have `CloseWrite`) resulting in:

    docker@WIN-NUC0 C:\Users\docker>.\docker-windows-amd64.exe system dial-stdio
    the raw stream connection does not implement halfCloser

Also disable the path which uses this for cli-plugins on Windows.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-03-04 17:36:21 +00:00
Sebastiaan van Stijn 0fc0015173
bump docker/docker to 8aca18d631f3f72d4c6e3dc01b6e5d468ad941b8
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-03-02 13:41:42 +01:00
Ian Campbell 3c2832637a Reformat the output of CLI plugins in `docker system info`
This matches the `docker --help` output after 92013600f9.

Added a unit test case for unversioned.

Signed-off-by: Ian Campbell <ijc@docker.com>
2019-02-25 13:13:51 +00:00