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文字

描述

显示容器资源使用统计信息的实时流

使用

docker stats [OPTIONS] [CONTAINER...]

备选方案

名字,简写

默认

描述

--all, -a

显示所有容器(默认显示正在运行)

--format


使用Go模板打印出图像

--no-stream

禁用流式统计信息并仅提取第一个结果

父命令

命令

描述

docker

Docker CLI的基本命令。

扩展描述

docker stats命令返回一个用于运行容器的实时数据流。要将数据限制到一个或多个特定容器,请指定由空格分隔的容器名称或ID列表。您可以指定已停止的容器,但已停止的容器不会返回任何数据。

如果您想了解有关容器资源使用情况的更多详细信息,请使用/containers/(id)/statsAPI端点。

实例

docker stats针对Linux守护进程运行所有正在运行的容器。

$ 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
9c76f7834ae2        0.07%               2.746 MiB / 64 MiB      4.29%               1.266 KB / 648 B    12.4 MB / 0 B
d1ea048f04e4        0.03%               4.583 MiB / 64 MiB      6.30%               2.854 KB / 648 B    27.7 MB / 0 B

docker stats通过名称和id在Linux守护进程上运行多个容器。

$ docker stats fervent_panini 5acfcb1b4fd1
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
fervent_panini      0.02%               11.08 MiB/1.045 GiB   1.06%               648 B/648 B

docker stats在所有(运行和停止)容器上运行自定义格式。

$ docker stats --all --format "table {{.ID}}\t{{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}"CONTAINER ID                                                       NAME                     CPU %               MEM USAGE / LIMIT
c9dfa83f0317f87637d5b7e67aa4223337d947215c5a9947e697e4f7d3e0f834   ecstatic_noether         0.00%               56KiB / 15.57GiB
8f92d01cf3b29b4f5fca4cd33d907e05def7af5a3684711b20a2369d211ec67f   stoic_goodall            0.07%               32.86MiB / 15.57GiB
38dd23dba00f307d53d040c1d18a91361bbdcccbf592315927d56cf13d8b7343   drunk_visvesvaraya       0.00%               0B / 0B
5a8b07ec4cc52823f3cbfdb964018623c1ba307bce2c057ccdbde5f4f6990833   big_heisenberg           0.00%               0B / 0B

drunk_visvesvarayabig_heisenberg在上述示例中是停止的容器。

docker stats针对Windows守护进程运行所有正在运行的容器。

PS E:\> docker stats
CONTAINER           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
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

docker stats通过名称和ID在Windows守护进程上运行多个容器。

PS E:\> docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
3f214c61ad1d        nanoserver          "cmd"               2 minutes ago       Up 2 minutes                            big_minsky
9db7aa4d986d        windowsservercore   "cmd"               2 minutes ago       Up 2 minutes                            mad_wilson
09d3bb5b1604        windowsservercore   "cmd"               2 minutes ago       Up 2 minutes                            affectionate_easley

PS E:\> docker stats 3f214c61ad1d mad_wilson
CONTAINER           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
mad_wilson          9.59%               40.09 MiB           27.6 kB / 8.81 kB   17 MB / 20.1 MB

格式化

格式化选项(--format)可以使用Go模板打印容器输出。

Go模板的有效占位符列在下面:

占位符

描述

.Container

容器名称或ID(用户输入)

.Name

容器名称

.ID

容器ID

.CPUPerc

CPU百分比

.MemUsage

内存使用情况

.NetIO

网络IO

.BlockIO

块IO

.MemPerc

内存百分比(Windows上不可用)

.PIDs

PID数量(在Windows上不可用)

使用该--format选项时,stats命令可以完全按照模板声明输出数据,或者在使用table指令时也包含列标题。

以下示例使用不带标题的模板,并输出由冒号分隔的所有图像ContainerCPUPerc条目:

$ docker stats --format "{{.Container}}: {{.CPUPerc}}"09d3bb5b1604: 6.61%9db7aa4d986d: 9.19%3f214c61ad1d: 0.00%

若要以表格格式列出所有容器的统计数据及其名称、CPU百分比和内存使用情况,请使用:

$ docker stats --format "table {{.Container}}\t{{.CPUPerc}}\t{{.MemUsage}}"CONTAINER           CPU %               PRIV WORKING SET
1285939c1fd3        0.07%               796 KiB / 64 MiB
9c76f7834ae2        0.07%               2.746 MiB / 64 MiB
d1ea048f04e4        0.03%               4.583 MiB / 64 MiB
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