本文介绍如何清理Amazon ECS中不再使用的Docker应用和服务数据，包括已退出的应用实例及无用的<none>版本镜像。通过特定的Docker命令可以有效地释放存储空间并维护系统的整洁。
ECS Maintain Tips(1)Clean Docker Images/Applications
Clean ECS to release data storage
I found sometimes ECS shutdown the docker application, but left the exited application data there. Sometimes, ECS upgrade the images, but left the <none> version images there.
Command to check all applications including exited ones.
>docker ps -a
65469eab87f8 xxxxxx.dkr.ecr.us-east-1.amazonaws.com/xxxxx "./start.sh" About an hour ago Exited (255) About an hour ago ecs-fr-task-process-42-jobs-producer-xxxxxx
a163cfcdbca1 xxxxxx.dkr.ecr.us-east-1.amazonaws.com/xxxxx "./start.sh" About an hour ago Exited (255) About an hour ago ecs-fr-task-process-42-jobs-producer-xxxxxx
Clean the exited applications
>docker rm $(docker ps -a | grep "Exited (255)" | awk "{print \$1}")
Command to list all images including the none version ones
>docker images
Clean the <none> version images
>docker rmi $(docker images | grep "<none>" | awk "{print \$3}")
Clean ECS to release data storage
I found sometimes ECS shutdown the docker application, but left the exited application data there. Sometimes, ECS upgrade the images, but left the <none> version images there.
Command to check all applications including exited ones.
>docker ps -a
65469eab87f8 xxxxxx.dkr.ecr.us-east-1.amazonaws.com/xxxxx "./start.sh" About an hour ago Exited (255) About an hour ago ecs-fr-task-process-42-jobs-producer-xxxxxx
a163cfcdbca1 xxxxxx.dkr.ecr.us-east-1.amazonaws.com/xxxxx "./start.sh" About an hour ago Exited (255) About an hour ago ecs-fr-task-process-42-jobs-producer-xxxxxx
Clean the exited applications
>docker rm $(docker ps -a | grep "Exited (255)" | awk "{print \$1}")
Command to list all images including the none version ones
>docker images
Clean the <none> version images
>docker rmi $(docker images | grep "<none>" | awk "{print \$3}")
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