Exclusion

Excluding registries, repositories, and images

Eraser can exclude registries (example, docker.io/library/*) and also specific images with a tag (example, docker.io/library/ubuntu:18.04) or digest (example, sha256:80f31da1ac7b312ba29d65080fd...) from its removal process.

To exclude any images or registries from the removal, create configmap(s) with the label eraser.sh/exclude.list=true in the eraser-system namespace with a JSON file holding the excluded images.

$ cat > sample.json <<EOF
{"excluded": ["docker.io/library/*", "ghcr.io/eraser-dev/test:latest"]}
EOF

$ kubectl create configmap excluded --from-file=sample.json --namespace=eraser-system
$ kubectl label configmap excluded eraser.sh/exclude.list=true -n eraser-system

Exempting Nodes from the Eraser Pipeline

Exempting nodes with --filter-nodes is added in v0.3.0. When deploying Eraser, you can specify whether there is a list of nodes you would like to include or exclude from the cleanup process using the --filter-nodes argument.

See Eraser Helm Chart for more information on deployment.

Nodes with the selector eraser.sh/cleanup.filter will be filtered accordingly.

• If include is provided, eraser and collector pods will only be scheduled on nodes with the selector eraser.sh/cleanup.filter.
• If exclude is provided, eraser and collector pods will be scheduled on all nodes besides those with the selector eraser.sh/cleanup.filter.

Unless specified, the default value of --filter-nodes is exclude. Because Windows nodes are not supported, they will always be excluded regardless of the eraser.sh/cleanup.filter label or the value of --filter-nodes.

Additional node selectors can be provided through the --filter-nodes-selector flag.