blocks|key|4560924|text|(这个答案没有用，但请把它留在这里，因为有些评论可能是)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4560925|docker+images将显示“虚拟大小”，即包括所有较低层在内的总大小。因此，如果您有共享相同基础图像的容器，则需要进行重复计算。|offset|length|style|CODE|4560926|documentation|4560927|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.docker.com/reference/commandline/cli/#images^0|0|0|D|0|0|D|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@$D|T|E|U|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|V|8|@]|9|@$D|W|E|X|1|Y]]|A|$]]|$1|J|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

(this answer is not useful, but leaving it here since some of the comments may be)

<code>docker images</code> will show the 'virtual size', i.e. how much in total including all the lower layers. So some double-counting if you have containers that share the same base image.

<a href="https://docs.docker.com/reference/commandline/cli/#images" rel="noreferrer">documentation</a>

blocks|key|54318|text|将此作为答案发布，因为我上面的评论被隐藏了：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|54319|列出容器的大小：|54320|du+-d+2+-h+/var/lib/docker/devicemapper+%7C+grep+`docker+inspect+-f+"{{.Id}}"+<container_name>`|code-block|syntax|javascript|54321|列出容器卷的大小：|54322|docker+inspect+-f+"{{.Volumes}}"+<container_name>+%7C+sed+'s/map\[//'+%7C+sed+'s/]//'+%7C+tr+'+'+'\n'+%7C+sed+'s/.*://'+%7C+xargs+sudo+du+-d+1+-h|54323|编辑:列出所有正在运行的容器的大小和体积：|54324|for+d+in+`docker+ps+-q`;+do
++++d_name=`docker+inspect+-f+{{.Name}}+$d`
++++echo+"========================================================="
++++echo+"$d_name+($d)+container+size:"
++++sudo+du+-d+2+-h+/var/lib/docker/devicemapper+%7C+grep+`docker+inspect+-f+"{{.Id}}"+$d`
++++echo+"$d_name+($d)+volumes:"
++++docker+inspect+-f+"{{.Volumes}}"+$d+%7C+sed+'s/map\[//'+%7C+sed+'s/]//'+%7C+tr+'+'+'\n'+%7C+sed+'s/.*://'+%7C+xargs+sudo+du+-d+1+-h
done|54325|注意:根据您的Docker文件系统更改'devicemapper‘(例如'aufs')|54326|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

Posting this as an answer because my comments above got hidden:

List the size of a container:

<pre><code>du -d 2 -h /var/lib/docker/devicemapper | grep `docker inspect -f "{{.Id}}" &lt;container_name&gt;`
</code></pre>

List the sizes of a container's volumes:

<pre><code>docker inspect -f "{{.Volumes}}" &lt;container_name&gt; | sed 's/map\[//' | sed 's/]//' | tr ' ' '\n' | sed 's/.*://' | xargs sudo du -d 1 -h
</code></pre>

Edit:
List all running containers' sizes and volumes:

<pre><code>for d in `docker ps -q`; do
 d_name=`docker inspect -f {{.Name}} $d`
 echo "========================================================="
 echo "$d_name ($d) container size:"
 sudo du -d 2 -h /var/lib/docker/devicemapper | grep `docker inspect -f "{{.Id}}" $d`
 echo "$d_name ($d) volumes:"
 docker inspect -f "{{.Volumes}}" $d | sed 's/map\[//' | sed 's/]//' | tr ' ' '\n' | sed 's/.*://' | xargs sudo du -d 1 -h
done
</code></pre>

NOTE: Change 'devicemapper' according to your Docker filesystem (e.g 'aufs')

blocks|key|54354|text|卷部分不再工作了，所以如果有人感兴趣，我只需要稍微修改一下上面的脚本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|54355|for+d+in+`docker+ps+%7C+awk+'{print+$1}'+%7C+tail+-n+%2B2`;+do
++++d_name=`docker+inspect+-f+{{.Name}}+$d`
++++echo+"========================================================="
++++echo+"$d_name+($d)+container+size:"
++++sudo+du+-d+2+-h+/var/lib/docker/aufs+%7C+grep+`docker+inspect+-f+"{{.Id}}"+$d`
++++echo+"$d_name+($d)+volumes:"
++++for+mount+in+`docker+inspect+-f+"{{range+.Mounts}}+{{.Source}}:{{.Destination}}++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
++++{{end}}"+$d`;+do
++++++++size=`echo+$mount+%7C+cut+-d':'+-f1+%7C+sudo+xargs+du+-d+0+-h`
++++++++mnt=`echo+$mount+%7C+cut+-d':'+-f2`
++++++++echo+"$size+mounted+on+$mnt"
++++done
done|code-block|syntax|javascript|54356|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The volume part did not work anymore so if anyone is insterested I just change the above script a little bit:

<pre><code>for d in `docker ps | awk '{print $1}' | tail -n +2`; do
 d_name=`docker inspect -f {{.Name}} $d`
 echo "========================================================="
 echo "$d_name ($d) container size:"
 sudo du -d 2 -h /var/lib/docker/aufs | grep `docker inspect -f "{{.Id}}" $d`
 echo "$d_name ($d) volumes:"
 for mount in `docker inspect -f "{{range .Mounts}} {{.Source}}:{{.Destination}} 
 {{end}}" $d`; do
 size=`echo $mount | cut -d':' -f1 | sudo xargs du -d 0 -h`
 mnt=`echo $mount | cut -d':' -f2`
 echo "$size mounted on $mnt"
 done
done
</code></pre>

blocks|key|54367|text|要查看容器的文件大小，可以使用docker+ps的--size参数|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|54368|docker+ps+--size|code-block|syntax|javascript|54369|entityMap^0|F|9|P|6|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

To see the file size of your containers, you can use the <code>--size</code> argument of <code>docker ps</code>:

<pre><code>docker ps --size
</code></pre>

blocks|key|4561040|text|请记住，docker+ps+--size可能是一个昂贵的命令，需要几分钟以上的时间才能完成。带有size=1的容器列表接口请求也是如此。最好不要运行得太频繁。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4561041|看看我们编译的alternatives，包括docker持久卷目录的du+-hs选项。|4561042|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/axibase/axibase-collector-docs/blob/master/jobs/docker/volume-size.md#monitoring-docker-volume-usage^0|4|G|1C|6|0|Y|6|7|C|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|H|3|-4|5|6|7|10|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

Keep in mind that <code>docker ps --size</code> may be an expensive command, taking more than a few minutes to complete. The same applies to container list API requests with <code>size=1</code>. It's better not to run it too often.

Take a look at <a href="https://github.com/axibase/axibase-collector-docs/blob/master/jobs/docker/volume-size.md#monitoring-docker-volume-usage" rel="noreferrer">alternatives</a> we compiled, including the <code>du -hs</code> option for the docker persistent volume directory.

blocks|key|4561064|text|您可以使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4561065|docker+history+IMAGE_ID|code-block|syntax|javascript|4561066|以查看图像大小是如何在其各个子组件之间分布的。|4561067|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can use

<pre><code>docker history IMAGE_ID
</code></pre>

to see how the image size is ditributed between its various sub-components.

I can see that Docker takes 12GB of my filesystem:

<pre><code>2.7G /var/lib/docker/vfs/dir
2.7G /var/lib/docker/vfs
2.8G /var/lib/docker/devicemapper/mnt
6.3G /var/lib/docker/devicemapper/devicemapper
9.1G /var/lib/docker/devicemapper
12G /var/lib/docker
</code></pre>

But, how do I know how this is distributed over the containers?

I tried to attach to the containers by running (the new v1.3 command)

<pre><code>docker exec -it &lt;container_name&gt; bash
</code></pre>

and then running 'df -h' to analyze the disk usage. It seems to be working, but not with containers that use 'volumes-from'.

For example, I use a data-only container for MongoDB, called 'mongo-data'.

When I run <code>docker run -it --volumes-from mongo-data busybox</code>, and then <code>df -h</code> inside the container, It says that the filesystem mounted on <code>/data/db</code> (my 'mongo-data' data-only container) uses 11.3G, but when I do <code>du -h /data/db</code>, it says that it uses only 2.1G.

So, how do I analyze a container/volume disk usage? Or, in my case, how do I find out the 'mongo-data' container size?

How to analyze disk usage of a Docker container

我可以看到Docker占用了我12 of的文件系统：2.7G    /var/lib/docker/vfs/dir2.7G    /var/lib/docker/vfs2.8G    /var/lib/docker/devicemapper/mnt6.3G    /var/lib/docker/devicemapper...

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