39 lines
1.2 KiB
Markdown
39 lines
1.2 KiB
Markdown
# Automatic update
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Docker images are handy but it can get a a hassle to keep them updated. Also when a repository is automated you want to get these images when they get out.
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One could setup a complex action/hook-based workflow using probes, but there is a nice, easy to use docker image that solves this issue and could prove useful: [watchtower](https://hub.docker.com/r/containrrr/watchtower).
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A docker-compose example:
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```yaml
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services:
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watchtower:
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restart: always
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image: containrrr/watchtower:latest
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volumes:
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- /var/run/docker.sock:/var/run/docker.sock
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```
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For more details see the [manual](https://containrrr.github.io/watchtower/)
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***
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# Automatic cleanup
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When you are pulling new images in automaticly it is nice to have them cleaned as well. There is also a docker images for this (from Spotify). The image is: [spotify/docker-gc](https://hub.docker.com/r/spotify/docker-gc/).
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A docker-compose example:
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```yaml
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services:
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docker-gc:
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restart: always
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image: spotify/docker-gc:latest
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volumes:
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- /var/run/docker.sock:/var/run/docker.sock
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```
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For more details see the [manual](https://github.com/spotify/docker-gc/blob/master/README.md)
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Or you can just use the "--cleanup" option on v2tec/watchtower. :-) |