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Add --no-trunc option to docker container stats 

This patch adds a `--no-trunc` option to `docker container stats`;

With this patch applied, the default output is:

    CONTAINER ID        NAME                                    CPU %               MEM USAGE / LIMIT     MEM %               NET I/O             BLOCK I/O           PIDS
    b95a83497c91        awesome_brattain                        0.28%               5.629MiB / 1.952GiB   0.28%               916B / 0B           147kB / 0B          9
    67b2525d8ad1        foobar                                  0.00%               1.727MiB / 1.952GiB   0.09%               2.48kB / 0B         4.11MB / 0B         2
    e5c383697914        test-1951.1.kay7x1lh1twk9c0oig50sd5tr   0.00%               196KiB / 1.952GiB     0.01%               71.2kB / 0B         770kB / 0B          1
    4bda148efbc0        random.1.vnc8on831idyr42slu578u3cr      0.00%               1.672MiB / 1.952GiB   0.08%               110kB / 0B          578kB / 0B          2
    84e3deaa45b2        registry                                0.01%               3.402MiB / 1.952GiB   0.17%               127kB / 378B        233kB / 0B          10
    2ed915778ceb        foo.1.lsmxrefn5yp9c9ijz1hzgdq4u         0.00%               1.727MiB / 1.952GiB   0.09%               166kB / 7.76kB      614kB / 0B          2

Addin the `--no-trunc` option, changes the output to:

    CONTAINER ID                                                       NAME                                    CPU %               MEM USAGE / LIMIT     MEM %               NET I/O             BLOCK I/O           PIDS
    b95a83497c9161c9b444e3d70e1a9dfba0c1840d41720e146a95a08ebf938afc   awesome_brattain                        0.25%               5.75MiB / 1.952GiB    0.29%               648B / 0B           147kB / 0B          10
    67b2525d8ad10bb236a49960e93c09993b0baabeef12c2d46cd5f4fbb6f4808c   foobar                                  0.00%               1.727MiB / 1.952GiB   0.09%               2.35kB / 0B         4.11MB / 0B         2
    e5c383697914b98b10cbbc9d0bd324b7b927099ac584f031057b8208d2fba9b1   test-1951.1.kay7x1lh1twk9c0oig50sd5tr   0.00%               196KiB / 1.952GiB     0.01%               71.1kB / 0B         770kB / 0B          1
    4bda148efbc006b0063373c3678083159af89f8cc83a6a28def14cb0dd171f70   random.1.vnc8on831idyr42slu578u3cr      0.00%               1.672MiB / 1.952GiB   0.08%               110kB / 0B          578kB / 0B          2
    84e3deaa45b2fc363e06167df9b90ab59f88d4f101e3f9b8df03a62a8f6783e1   registry                                0.00%               3.387MiB / 1.952GiB   0.17%               127kB / 378B        233kB / 0B          10
    2ed915778cebddf9ec69263a75cfdcf00962a5198d94d42cda75d5cd45bb82f2   foo.1.lsmxrefn5yp9c9ijz1hzgdq4u         0.00%               1.727MiB / 1.952GiB   0.09%               166kB / 7.76kB      614kB / 0B          2

Which is the same as the default before this patch was applied.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2017-09-27 18:24:26 +02:00
parent 0a78472211
commit e63417a9c0
No known key found for this signature in database
GPG Key ID: 76698F39D527CE8C
6 changed files with 95 additions and 33 deletions
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4
cli/command/container/stats.go
View File

@ -21,6 +21,7 @@ import (
type statsOptions struct { type statsOptions struct {
all bool all bool
noStream bool noStream bool
noTrunc bool
format string format string
containers []string containers []string
} }
@ -42,6 +43,7 @@ func NewStatsCommand(dockerCli *command.DockerCli) *cobra.Command {
flags := cmd.Flags() flags := cmd.Flags()
flags.BoolVarP(&opts.all, "all", "a", false, "Show all containers (default shows just running)") flags.BoolVarP(&opts.all, "all", "a", false, "Show all containers (default shows just running)")
flags.BoolVar(&opts.noStream, "no-stream", false, "Disable streaming stats and only pull the first result") flags.BoolVar(&opts.noStream, "no-stream", false, "Disable streaming stats and only pull the first result")
flags.BoolVar(&opts.noTrunc, "no-trunc", false, "Do not truncate output")
flags.StringVar(&opts.format, "format", "", "Pretty-print images using a Go template") flags.StringVar(&opts.format, "format", "", "Pretty-print images using a Go template")
return cmd return cmd
} }
@ -214,7 +216,7 @@ func runStats(dockerCli *command.DockerCli, opts *statsOptions) error {
ccstats = append(ccstats, c.GetStatistics()) ccstats = append(ccstats, c.GetStatistics())
} }
cStats.mu.Unlock() cStats.mu.Unlock()
if err = formatter.ContainerStatsWrite(statsCtx, ccstats, daemonOSType); err != nil { if err = formatter.ContainerStatsWrite(statsCtx, ccstats, daemonOSType, !opts.noTrunc); err != nil {
break break
} }
if len(cStats.cs) == 0 && !showAll { if len(cStats.cs) == 0 && !showAll {

8
cli/command/formatter/stats.go
View File

@ -4,6 +4,7 @@ import (
"fmt" "fmt"
"sync" "sync"
"github.com/docker/docker/pkg/stringid"
units "github.com/docker/go-units" units "github.com/docker/go-units"
) )
@ -114,12 +115,13 @@ func NewContainerStats(container string) *ContainerStats {
} }
// ContainerStatsWrite renders the context for a list of containers statistics // ContainerStatsWrite renders the context for a list of containers statistics
func ContainerStatsWrite(ctx Context, containerStats []StatsEntry, osType string) error { func ContainerStatsWrite(ctx Context, containerStats []StatsEntry, osType string, trunc bool) error {
render := func(format func(subContext subContext) error) error { render := func(format func(subContext subContext) error) error {
for _, cstats := range containerStats { for _, cstats := range containerStats {
containerStatsCtx := &containerStatsContext{ containerStatsCtx := &containerStatsContext{
s: cstats, s: cstats,
os: osType, os: osType,
trunc: trunc,
} }
if err := format(containerStatsCtx); err != nil { if err := format(containerStatsCtx); err != nil {
return err return err
@ -151,6 +153,7 @@ type containerStatsContext struct {
HeaderContext HeaderContext
s StatsEntry s StatsEntry
os string os string
trunc bool
} }
func (c *containerStatsContext) MarshalJSON() ([]byte, error) { func (c *containerStatsContext) MarshalJSON() ([]byte, error) {
@ -169,6 +172,9 @@ func (c *containerStatsContext) Name() string {
} }
func (c *containerStatsContext) ID() string { func (c *containerStatsContext) ID() string {
if c.trunc {
return stringid.TruncateID(c.s.ID)
}
return c.s.ID return c.s.ID
} }

42
cli/command/formatter/stats_test.go
View File

@ -114,7 +114,7 @@ container2 --
} }
var out bytes.Buffer var out bytes.Buffer
te.context.Output = &out te.context.Output = &out
err := ContainerStatsWrite(te.context, stats, "linux") err := ContainerStatsWrite(te.context, stats, "linux", false)
if err != nil { if err != nil {
assert.EqualError(t, err, te.expected) assert.EqualError(t, err, te.expected)
} else { } else {
@ -180,7 +180,7 @@ container2 -- --
} }
var out bytes.Buffer var out bytes.Buffer
te.context.Output = &out te.context.Output = &out
err := ContainerStatsWrite(te.context, stats, "windows") err := ContainerStatsWrite(te.context, stats, "windows", false)
if err != nil { if err != nil {
assert.EqualError(t, err, te.expected) assert.EqualError(t, err, te.expected)
} else { } else {
@ -220,7 +220,7 @@ func TestContainerStatsContextWriteWithNoStats(t *testing.T) {
} }
for _, context := range contexts { for _, context := range contexts {
ContainerStatsWrite(context.context, []StatsEntry{}, "linux") ContainerStatsWrite(context.context, []StatsEntry{}, "linux", false)
assert.Equal(t, context.expected, out.String()) assert.Equal(t, context.expected, out.String())
// Clean buffer // Clean buffer
out.Reset() out.Reset()
@ -258,7 +258,41 @@ func TestContainerStatsContextWriteWithNoStatsWindows(t *testing.T) {
} }
for _, context := range contexts { for _, context := range contexts {
ContainerStatsWrite(context.context, []StatsEntry{}, "windows") ContainerStatsWrite(context.context, []StatsEntry{}, "windows", false)
assert.Equal(t, context.expected, out.String())
// Clean buffer
out.Reset()
}
}
func TestContainerStatsContextWriteTrunc(t *testing.T) {
var out bytes.Buffer
contexts := []struct {
context Context
trunc bool
expected string
}{
{
Context{
Format: "{{.ID}}",
Output: &out,
},
false,
"b95a83497c9161c9b444e3d70e1a9dfba0c1840d41720e146a95a08ebf938afc\n",
},
{
Context{
Format: "{{.ID}}",
Output: &out,
},
true,
"b95a83497c91\n",
},
}
for _, context := range contexts {
ContainerStatsWrite(context.context, []StatsEntry{{ID: "b95a83497c9161c9b444e3d70e1a9dfba0c1840d41720e146a95a08ebf938afc"}}, "linux", context.trunc)
assert.Equal(t, context.expected, out.String()) assert.Equal(t, context.expected, out.String())
// Clean buffer // Clean buffer
out.Reset() out.Reset()

2
contrib/completion/bash/docker
View File

@ -2023,7 +2023,7 @@ _docker_container_stats() {
case "$cur" in case "$cur" in
-*) -*)
COMPREPLY=( $( compgen -W "--all -a --format --help --no-stream" -- "$cur" ) ) COMPREPLY=( $( compgen -W "--all -a --format --help --no-stream --no-trunc" -- "$cur" ) )
;; ;;
*) *)
__docker_complete_containers_running __docker_complete_containers_running

1
contrib/completion/zsh/_docker
View File

@ -897,6 +897,7 @@ __docker_container_subcommand() {
"($help -a --all)"{-a,--all}"[Show all containers (default shows just running)]" \ "($help -a --all)"{-a,--all}"[Show all containers (default shows just running)]" \
"($help)--format=[Pretty-print images using a Go template]:template: " \ "($help)--format=[Pretty-print images using a Go template]:template: " \
"($help)--no-stream[Disable streaming stats and only pull the first result]" \ "($help)--no-stream[Disable streaming stats and only pull the first result]" \
"($help)--no-trunc[Do not truncate output]" \
"($help -)*:containers:__docker_complete_running_containers" && ret=0 "($help -)*:containers:__docker_complete_running_containers" && ret=0
;; ;;
(stop) (stop)

63
docs/reference/commandline/stats.md
View File

@ -25,6 +25,7 @@ Options:
--format string Pretty-print images using a Go template --format string Pretty-print images using a Go template
--help Print usage --help Print usage
--no-stream Disable streaming stats and only pull the first result --no-stream Disable streaming stats and only pull the first result
--no-trunc Don't truncate output
``` ```
## Description ## Description
@ -39,30 +40,34 @@ Running `docker stats` on all running containers against a Linux daemon.
```bash ```bash
$ docker stats $ docker stats
CONTAINER CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O
1285939c1fd3 0.07% 796 KiB / 64 MiB 1.21% 788 B / 648 B 3.568 MB / 512 KB CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
9c76f7834ae2 0.07% 2.746 MiB / 64 MiB 4.29% 1.266 KB / 648 B 12.4 MB / 0 B b95a83497c91 awesome_brattain 0.28% 5.629MiB / 1.952GiB 0.28% 916B / 0B 147kB / 0B 9
d1ea048f04e4 0.03% 4.583 MiB / 64 MiB 6.30% 2.854 KB / 648 B 27.7 MB / 0 B 67b2525d8ad1 foobar 0.00% 1.727MiB / 1.952GiB 0.09% 2.48kB / 0B 4.11MB / 0B 2
e5c383697914 test-1951.1.kay7x1lh1twk9c0oig50sd5tr 0.00% 196KiB / 1.952GiB 0.01% 71.2kB / 0B 770kB / 0B 1
4bda148efbc0 random.1.vnc8on831idyr42slu578u3cr 0.00% 1.672MiB / 1.952GiB 0.08% 110kB / 0B 578kB / 0B 2
``` ```
Running `docker stats` on multiple containers by name and id against a Linux daemon. Running `docker stats` on multiple containers by name and id against a Linux daemon.
```bash ```bash
$ docker stats fervent_panini 5acfcb1b4fd1 $ docker stats awesome_brattain 67b2525d8ad1
CONTAINER CPU % MEM USAGE/LIMIT MEM % NET I/O
5acfcb1b4fd1 0.00% 115.2 MiB/1.045 GiB 11.03% 1.422 kB/648 B CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
fervent_panini 0.02% 11.08 MiB/1.045 GiB 1.06% 648 B/648 B b95a83497c91 awesome_brattain 0.28% 5.629MiB / 1.952GiB 0.28% 916B / 0B 147kB / 0B 9
67b2525d8ad1 foobar 0.00% 1.727MiB / 1.952GiB 0.09% 2.48kB / 0B 4.11MB / 0B 2
``` ```
Running `docker stats` with customized format on all (Running and Stopped) containers. Running `docker stats` with customized format on all (Running and Stopped) containers.
```bash ```bash
$ docker stats --all --format "table {{.ID}}\t{{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}" $ docker stats --all --format "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}" fervent_panini 5acfcb1b4fd1 drunk_visvesvaraya big_heisenberg
CONTAINER ID NAME CPU % MEM USAGE / LIMIT
c9dfa83f0317f87637d5b7e67aa4223337d947215c5a9947e697e4f7d3e0f834 ecstatic_noether 0.00% 56KiB / 15.57GiB CONTAINER CPU % MEM USAGE / LIMIT
8f92d01cf3b29b4f5fca4cd33d907e05def7af5a3684711b20a2369d211ec67f stoic_goodall 0.07% 32.86MiB / 15.57GiB fervent_panini 0.00% 56KiB / 15.57GiB
38dd23dba00f307d53d040c1d18a91361bbdcccbf592315927d56cf13d8b7343 drunk_visvesvaraya 0.00% 0B / 0B 5acfcb1b4fd1 0.07% 32.86MiB / 15.57GiB
5a8b07ec4cc52823f3cbfdb964018623c1ba307bce2c057ccdbde5f4f6990833 big_heisenberg 0.00% 0B / 0B drunk_visvesvaraya 0.00% 0B / 0B
big_heisenberg 0.00% 0B / 0B
``` ```
`drunk_visvesvaraya` and `big_heisenberg` are stopped containers in the above example. `drunk_visvesvaraya` and `big_heisenberg` are stopped containers in the above example.
@ -71,7 +76,7 @@ Running `docker stats` on all running containers against a Windows daemon.
```powershell ```powershell
PS E:\> docker stats PS E:\> docker stats
CONTAINER CPU % PRIV WORKING SET NET I/O BLOCK I/O CONTAINER ID CPU % PRIV WORKING SET NET I/O BLOCK I/O
09d3bb5b1604 6.61% 38.21 MiB 17.1 kB / 7.73 kB 10.7 MB / 3.57 MB 09d3bb5b1604 6.61% 38.21 MiB 17.1 kB / 7.73 kB 10.7 MB / 3.57 MB
9db7aa4d986d 9.19% 38.26 MiB 15.2 kB / 7.65 kB 10.6 MB / 3.3 MB 9db7aa4d986d 9.19% 38.26 MiB 15.2 kB / 7.65 kB 10.6 MB / 3.3 MB
3f214c61ad1d 0.00% 28.64 MiB 64 kB / 6.84 kB 4.42 MB / 6.93 MB 3f214c61ad1d 0.00% 28.64 MiB 64 kB / 6.84 kB 4.42 MB / 6.93 MB
@ -81,15 +86,15 @@ Running `docker stats` on multiple containers by name and id against a Windows d
```powershell ```powershell
PS E:\> docker ps -a PS E:\> docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES CONTAINER ID NAME IMAGE COMMAND CREATED STATUS PORTS NAMES
3f214c61ad1d nanoserver "cmd" 2 minutes ago Up 2 minutes big_minsky 3f214c61ad1d awesome_brattain nanoserver "cmd" 2 minutes ago Up 2 minutes big_minsky
9db7aa4d986d windowsservercore "cmd" 2 minutes ago Up 2 minutes mad_wilson 9db7aa4d986d mad_wilson windowsservercore "cmd" 2 minutes ago Up 2 minutes mad_wilson
09d3bb5b1604 windowsservercore "cmd" 2 minutes ago Up 2 minutes affectionate_easley 09d3bb5b1604 fervent_panini windowsservercore "cmd" 2 minutes ago Up 2 minutes affectionate_easley
PS E:\> docker stats 3f214c61ad1d mad_wilson PS E:\> docker stats 3f214c61ad1d mad_wilson
CONTAINER CPU % PRIV WORKING SET NET I/O BLOCK I/O CONTAINER ID NAME CPU % PRIV WORKING SET NET I/O BLOCK I/O
3f214c61ad1d 0.00% 46.25 MiB 76.3 kB / 7.92 kB 10.3 MB / 14.7 MB 3f214c61ad1d awesome_brattain 0.00% 46.25 MiB 76.3 kB / 7.92 kB 10.3 MB / 14.7 MB
mad_wilson 9.59% 40.09 MiB 27.6 kB / 8.81 kB 17 MB / 20.1 MB 9db7aa4d986d mad_wilson 9.59% 40.09 MiB 27.6 kB / 8.81 kB 17 MB / 20.1 MB
``` ```
### Formatting ### Formatting
@ -138,3 +143,17 @@ CONTAINER CPU % PRIV WORKING SET
9c76f7834ae2 0.07% 2.746 MiB / 64 MiB 9c76f7834ae2 0.07% 2.746 MiB / 64 MiB
d1ea048f04e4 0.03% 4.583 MiB / 64 MiB d1ea048f04e4 0.03% 4.583 MiB / 64 MiB
``` ```
The default format is as follows:
On Linux:
"table {{.ID}}\t{{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.MemPerc}}\t{{.NetIO}}\t{{.BlockIO}}\t{{.PIDs}}"
On Windows:
"table {{.ID}}\t{{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.NetIO}}\t{{.BlockIO}}"
> **Note**: On Docker 17.09 and older, the `{{.Container}}` column was used, in
> stead of `{{.ID}}\t{{.Name}}`.