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Docker

Cupdate is made to run in Docker by mounting the Docker socket. Cupdate will poll the socket for changes, reacting on changes made to containers.

docker run --detach --volume /var/run/docker.sock:/var/run/docker.sock ghcr.io/alexgustafsson/cupdate:latest

See also the Docker compose example in compose.yaml.

docker compose up -f ./compose.yaml

Config

For Docker, Cupdate requires the Docker host to be specified. For now, Cupdate only supports using the Docker socket immediately. It should be configured using the CUPDATE_DOCKER_HOST environment variable, setting it to unix:///var/run/docker.sock, for example.

By default, only running containers are used by Cupdate. To use all containers, set CUPDATE_DOCKER_INCLUDE_ALL_CONTAINERS to true.

See also config.md.