tldr/pages/common/docker-update.md

docker update

Update configuration of Docker containers. This command is not supported for Windows containers. More information: https://docs.docker.com/engine/reference/commandline/update/.

• Update restart policy to apply when a specific container exits:

docker update --restart={{always|no|on-failure|unless-stopped}} {{container_name}}

• Update the policy to restart up to three times a specific container when it exits with non-zero exit status:

docker update --restart=on-failure:3 {{container_name}}

• Update the number of CPUs available to a specific container:

docker update --cpus {{count}} {{container_name}}

• Update the memory limit in [M]egabytes for a specific container:

docker update --memory {{limit}}M {{container_name}}

• Update the maximum number of process IDs allowed inside a specific container (use -1 for unlimited):

docker update --pids-limit {{count}} {{container_name}}

• Update the amount of memory in [M]egabytes a specific container can swap to disk (use -1 for unlimited):

docker update --memory-swap {{limit}}M {{container_name}}