下面是我的docker-cleanup脚本，它删除未标记的容器和图像。请检查来源的任何更新。

#!/bin/sh
# Cleanup docker files: untagged containers and images.
#
# Use `docker-cleanup -n` for a dry run to see what would be deleted.

untagged_containers() {
  # Print containers using untagged images: $1 is used with awk's print: 0=line, 1=column 1.
  docker ps -a | awk '$2 ~ "[0-9a-f]{12}" {print $'$1'}'
}

untagged_images() {
  # Print untagged images: $1 is used with awk's print: 0=line, 3=column 3.
  # NOTE: intermediate images (via -a) seem to only cause
  # "Error: Conflict, foobarid wasn't deleted" messages.
  # Might be useful sometimes when Docker messed things up?!
  # docker images -a | awk '$1 == "<none>" {print $'$1'}'
  docker images | tail -n +2 | awk '$1 == "<none>" {print $'$1'}'
}

# Dry-run.
if [ "$1" = "-n" ]; then
  echo "=== Containers with uncommitted images: ==="
  untagged_containers 0
  echo

  echo "=== Uncommitted images: ==="
  untagged_images 0

  exit
fi

# Remove containers with untagged images.
echo "Removing containers:" >&2
untagged_containers 1 | xargs --no-run-if-empty docker rm --volumes=true

# Remove untagged images
echo "Removing images:" >&2
untagged_images 3 | xargs --no-run-if-empty docker rmi

来源:https://github.com/blueyed/dotfiles/blob/master/usr/bin/docker-cleanup

使用实例删除已退出的容器。

docker rm $(sudo docker ps -a | grep Exit | cut -d ' ' -f 1)

以下是删除docker上旧图像的完整要点:

我使用以下的变体:

docker ps -a | grep 'cassandra.*Exited' | cut -d " " -f 1

第一部分列出了所有进程。

第二种选择的是“cassandra”后面跟着“Exited”。

第三个方法是删除图像ID之后的所有测试，这样就得到了一个图像ID列表。

So,

docker rm $(docker ps -a | grep 'cassandra.*Exited' | cut -d " " -f 1)

#!/bin/bash
# docker-gc --- Remove stopped docker containers

RUNNING=$(docker ps -q)
ALL=$(docker ps -a -q)

for container in $ALL ; do
    [[ "$RUNNING" =~ "$container" ]] && continue
    echo Removing container: $(docker rm $container)
done

#!/bin/bash

echo Cleanup unused containers
unused_containers=$(docker ps -a -q --filter="status=exited")
if [[ -n $unused_containers ]]
then
  docker rm $unused_containers
fi

echo Cleanup unused images
unused_images=$(docker images | grep '^<none>' | awk '{print $3}')
if [[ -n $unused_images ]]
then
  docker rmi $unused_images
fi

官方的说法是:

docker rm `docker ps -aq`

Docker的维护者已经表示不会有这样的命令——你可以像这样组合命令:

我们之前讨论过这个问题，希望用户使用上面的代码行，而不必向Docker添加额外的代码。