几周前移除旧容器。

Docker rm $(Docker ps -a | grep "weeks" | awk '{打印$1;}”)

几周前删除旧图像。小心些而已。这将删除几周前创建的基本图像，但您的新图像可能会使用这些图像。

Docker rmi $(Docker images | grep 'weeks' | awk '{打印$3;}”)

如果你想删除X个月前的图片，你可以尝试下面的例子，删除三个月前创建的图片:

three_months_old_images=`docker images | grep -vi "<none>" | tr -s ' ' | cut -d" " -f3,4,5,6 | grep "3 months ago" | cut -d" " -f1`
docker rmi $three_months_old_images

如果你自己构建这些修剪过的映像(从其他一些较旧的基础映像)，请谨慎使用上述基于docker image prune的可接受解决方案，因为该命令是生硬的，并将尝试删除最新映像所需的所有依赖关系(该命令可能应该重命名为docker image*s* prune)。

我为我的docker映像构建管道(其中有每日构建和标签=日期YYYYMMDD格式)提出的解决方案是:

# carefully narrow down the image to be deleted (to avoid removing useful static stuff like base images)
my_deleted_image=mirekphd/ml-cpu-py37-vsc-cust

# define the monitored image (tested for obsolescence), which will be usually the same as deleted one, unless deleting some very infrequently built image which requires a separate "clock"
monitored_image=mirekphd/ml-cache

# calculate the oldest acceptable tag (date)
date_week_ago=$(date -d "last week" '+%Y%m%d')

# get the IDs of obsolete tags of our deleted image
# note we use monitored_image to test for obsolescence
my_deleted_image_obsolete_tag_ids=$(docker images --filter="before=$monitored_image:$date_week_ago" | grep $my_deleted_image | awk '{print $3}')

# remove the obsolete tags of the deleted image
# (note it typically has to be forced using -f switch)
docker rmi -f $my_deleted_image_obsolete_tag_ids

这招对我很管用:

docker rmi $(docker images | grep "^<none>" | awk "{print $3}")

我最近写了一个脚本在我的服务器上解决这个问题:

#!/bin/bash

# Remove all the dangling images
DANGLING_IMAGES=$(docker images -qf "dangling=true")
if [[ -n $DANGLING_IMAGES ]]; then
    docker rmi "$DANGLING_IMAGES"
fi

# Get all the images currently in use
USED_IMAGES=($( \
    docker ps -a --format '{{.Image}}' | \
    sort -u | \
    uniq | \
    awk -F ':' '$2{print $1":"$2}!$2{print $1":latest"}' \
))

# Get all the images currently available
ALL_IMAGES=($( \
    docker images --format '{{.Repository}}:{{.Tag}}' | \
    sort -u \
))

# Remove the unused images
for i in "${ALL_IMAGES[@]}"; do
    UNUSED=true
    for j in "${USED_IMAGES[@]}"; do
        if [[ "$i" == "$j" ]]; then
            UNUSED=false
        fi
    done
    if [[ "$UNUSED" == true ]]; then
        docker rmi "$i"
    fi
done

要删除没有容器运行的标记图像，你必须使用一个小脚本:

#!/bin/bash

# remove not running containers
docker rm $(docker ps -f "status=exited" -q)

declare -A used_images

# collect images which has running container
for image in $(docker ps | awk 'NR>1 {print $2;}'); do
    id=$(docker inspect --format="{{.Id}}" $image);
    used_images[$id]=$image;
done

# loop over images, delete those without a container
for id in $(docker images --no-trunc -q); do
    if [ -z ${used_images[$id]} ]; then
        echo "images is NOT in use: $id"
        docker rmi $id
    else
        echo "images is in use:     ${used_images[$id]}"
    fi
done