DockerCLI/cli
Sebastiaan van Stijn 9dc54f3fbe
info: don't print server info if we failed to connect
Before this patch, the Server output would be printed even if we failed to
connect (including WARNINGS):

```bash
docker -H tcp://127.0.0.1:2375 info
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc., v0.8.2)
  compose: Docker Compose (Docker Inc., v2.4.1)
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc., 0.6.0)
  scan: Docker Scan (Docker Inc., v0.17.0)

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 0
 Plugins:
  Volume:
  Network:
  Log:
 Swarm:
  NodeID:
  Is Manager: false
  Node Address:
 CPUs: 0
 Total Memory: 0B
 Docker Root Dir:
 Debug Mode: false
 Experimental: false
 Live Restore Enabled: false

WARNING: No memory limit support
WARNING: No swap limit support
WARNING: No oom kill disable support
WARNING: No cpu cfs quota support
WARNING: No cpu cfs period support
WARNING: No cpu shares support
WARNING: No cpuset support
WARNING: IPv4 forwarding is disabled
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled
ERROR: Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
errors pretty printing info
```

With this patch;

```bash
docker -H tcp://127.0.0.1:2375 info

Client:
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc., v0.8.2)
  compose: Docker Compose (Docker Inc., v2.4.1)
  sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc., 0.6.0)
  scan: Docker Scan (Docker Inc., v0.17.0)

Server:
ERROR: Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
errors pretty printing info
```

And if a custom format is used:

```bash
docker -H tcp://127.0.0.1:2375 info --format '{{.Containers}}'
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
0
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2022-05-10 12:13:03 +02:00
..
command info: don't print server info if we failed to connect 2022-05-10 12:13:03 +02:00
compose Add merge to ShellCommand properties in config 2022-04-08 14:56:14 +02:00
config Deprecation: config: remove support for old ~/.dockercfg 2022-04-06 21:35:03 +02:00
connhelper gofmt with go1.17 2022-03-26 20:21:00 +01:00
context context: Endpoint.ClientOpts(): use client.WithVersionFromEnv() 2022-03-30 17:42:23 +02:00
debug updated vendoring 2017-09-01 19:41:06 -04:00
flags use client consts for environment variable names 2022-03-30 17:42:20 +02:00
manifest remove unneeded "digest" alias for "go-digest" 2022-03-04 14:45:37 +01:00
registry/client cli/registry/client: remove unused IsNotFound(), and slight refactor 2022-03-30 20:00:36 +02:00
streams update docker, replace github.com/docker/pkg/term, github.com/docker/pkg/mount 2020-04-22 17:16:13 +02:00
trust remove unneeded "digest" alias for "go-digest" 2022-03-04 14:45:37 +01:00
version Move versioning variables to a separate package. 2019-01-29 11:26:40 +00:00
winresources Use goversioninfo to create Windows Version Info 2021-10-11 16:54:22 +02:00
cobra.go cli: use "Swarm Subcommands" instead of "Orchestrator" 2022-04-08 16:57:10 +02:00
cobra_test.go bump gotest.tools v3.0.1 for compatibility with Go 1.14 2020-02-23 00:28:55 +01:00
error.go Import docker/docker/cli 2017-04-17 17:40:59 -04:00
required.go Disable unparam linter: cli/required.go:102:16: `pluralize` - `word` always receives `"argument"` (unparam) 2019-10-31 19:22:22 +01:00
required_test.go cli: remove deprecated io/ioutil 2022-02-25 15:42:19 +01:00