ragnarson / deis-cleanup

Deis docker cleanup script

deis-cleanup

It's Deis specific approach to docker image cleanup. Currently available solutions are too io heavy or aren't configurable enough.

Usage

Configuration

Use environment variables to pass the configuration. For example:

docker run --env "ENV_NAME=value" ...`

Possible options:

• KEEP_LAST_VERSIONS - the number of releases to keep for each repository (default: 2).
• DRY_RUN - just print the commands (default: false).
• EXCLUDE_REGEX - regex filter for repository name (default: alpine|deis|blackhole|none|datadog|cleanup|heroku|python).
• CLEANUP_CONTAINERS - cleanup exited containers (default: true)

deis-builder

1. Log onto the deis-builder container:

$ fleetctl ssh deis-builder
$ nse deis-builder

1. Pull deis-cleanup image:

$ docker pull twobox/deis-cleanup

1. Run deis-cleanup:

$ docker run -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker:/var/lib/docker --rm twobox/deis-cleanup

Regular Deis node

Manual

Repeat for each Deis node:

1. Log onto a node:

$ fleetctl ssh <machine id>

1. Follow steps 2. and 3. from usage on deis-builder.

Service

1. Load the service:

$ fleetctl load deis-cleanup.service

1. Start the service:

$ fleetctl start deis-cleanup.service

1. Wait until the process will finish and destroy it (optional):

$ fleetctl destroy deis-cleanup.service

Development

1. Update the code.
2. Build:

$ docker build -t twobox/deis-cleanup .
...
Successfully built 902499c7cfb8

1. Tag:

$ docker images | grep deis-cleanup
deis-cleanup        latest              902499c7cfb8        6 minutes ago       143.5 MB
$ docker tag 902499c7cfb8 twobox/deis-cleanup:latest
$ docker images | grep deis-cleanup
deis-cleanup          latest              902499c7cfb8        10 minutes ago      143.5 MB
twobox/deis-cleanup   latest              902499c7cfb8        10 minutes ago      143.5 MB

1. Login (optional, it has to be done only once):

$ docker login --username=<login> --email=<email>
Password:
WARNING: login credentials saved in <home>/.docker/config.json
Login Succeeded

1. Push:

$ docker push twobox/deis-cleanup
The push refers to a repository [docker.io/twobox/deis-cleanup]
...
latest: digest: sha256:cdc617c74cc2b8332eaa0f844571309e7b291f1b483a7372a316d62395e0b3f1 size: 12968

deis-cleanup's Issues

Can't delete some images

Using a stateless deis 1.12.3, some images can't be deleted because it's in use. The containers should be removed first.

Error response from daemon: Conflict, cannot delete 9a654fb551d6 because the container 11379f004d9f is using it, use -f to force
Error: failed to remove images: [10.xx.yy.zz:5000/production:v45]

The command used was:

docker run \
 -v /var/run/docker.sock:/var/run/docker.sock \
 -v /var/lib/docker:/var/lib/docker \
 --rm \
 twobox/deis-cleanup