Formatting stats runs in a loop to refresh the stats for each container. This
patch makes some small performance improvments by reducing the use of Sprintf
in favor of concatenating strings, and using strconv directly where possible.
Benchmark can be run with:
GO111MODULE=off go test -test.v -test.bench '^BenchmarkStatsFormat' -test.run '^$' ./cli/command/container/
Before/after:
BenchmarkStatsFormatOld-8 2655 428064 ns/op 62432 B/op 5600 allocs/op
BenchmarkStatsFormat-8 3338 335822 ns/op 52832 B/op 4700 allocs/op
Average of 5 runs;
benchstat old.txt new.txt
name old time/op new time/op delta
StatsFormat-8 432µs ± 1% 344µs ± 5% -20.42% (p=0.008 n=5+5)
name old alloc/op new alloc/op delta
StatsFormat-8 62.4kB ± 0% 52.8kB ± 0% -15.38% (p=0.000 n=5+4)
name old allocs/op new allocs/op delta
StatsFormat-8 5.60k ± 0% 4.70k ± 0% -16.07% (p=0.008 n=5+5)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
```
cli/command/container/hijack.go:188:1⚠️ nolint directive did not match any issue (nolint)
cli/command/image/trust.go:346:1⚠️ nolint directive did not match any issue (nolint)
cli/command/manifest/push.go:211:1⚠️ nolint directive did not match any issue (nolint)
cli/command/trust/signer_remove.go:79:1⚠️ nolint directive did not match any issue (nolint)
internal/pkg/containerized/snapshot.go:95:1⚠️ nolint directive did not match any issue (nolint)
internal/pkg/containerized/snapshot.go:138:1⚠️ nolint directive did not match any issue (nolint)
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This hides the flags when connecting to an older engine, or if
swarm is not enabled, and is also used to add badges in the
documentation.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
- Prevent completion on "create" subcommands to prevent them
from completing with local filenames
- Add completion for "docker image save"
- Add completion for "docker image tag"
- Disable completion for "docker login"
- Exclude "paused" containers for "docker container attach" and
"docker container exec"
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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>
Before this change, the function could print an error in some cases, for example;
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{.LoggingDriver}}'
template: :1:2: executing "" at <.LoggingDriver>: reflect: indirection through nil pointer to embedded struct field Info
```
With this patch applied, the error is handled gracefully, and when failing to
connect with the daemon, the error is logged;
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{.LoggingDriver}}'
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
docker -H tcp://127.0.0.1:2375 info --format '{{json .}}'
Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?
{"ID":"","Containers":0,"..."}}
```
Note that the connection error is also included in the JSON `ServerErrors` field,
so that the information does not get lost, even if STDERR would be redirected;
```bash
docker -H tcp://127.0.0.1:2375 info --format '{{json .ServerErrors}}' 2> /dev/null
["Cannot connect to the Docker daemon at tcp://127.0.0.1:2375. Is the docker daemon running?"]
```
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This test is very flaky, the retry loop runs for 550ms and some more, 750ms is
cleary not enough for everything to set and for the cli to return the tty resize
error. A sleep of 1.5 seconds in this test should be enough for the retry loop to
finish.
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
I some cases, for example if there is a heavy load, the initialization of the TTY size
would fail. This change makes the cli retry 10 times instead of 5 and we wait
incrementally from 10ms to 100ms
Relates to #3554
Signed-off-by: Djordje Lukic <djordje.lukic@docker.com>
These annotations were added because these options were not supported
when using kubernetes as an orchestrator. Now that this feature was
removed, we can remove these annotations.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Getting the client API version is non-intuitive.
Other keys follow the json example or the version output, however `'{{.Client.ApiVersion}}'` does not work, nor does `'{{.Client.APIversion}}'`
Signed-off-by: Gabriel Gore <gabgore@cisco.com>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn
Brian Goff
Sebastiaan van Stijn
Drew Erny
Nicolas De Loof
teivah
Phong Tran
Djordje Lukic
Gabriel