GCR cleaner

Overview

This command finds and removes old GCR images created by Jobs in the Google Cloud Platform (GCP) project.

There are two conditions used to find images for removal:

The repository name pattern is not on the ignored list.
The creationTimestamp value of the images, which is used to find addresses, exists at least for a preconfigured number of hours.

GCR images that meet these conditions are subject to removal.

For safety reasons, the dry-run mode is the default one.
To run it, use:

env GOOGLE_APPLICATION_CREDENTIALS={PATH_TO_SERVICE_ACCOUNT_FILE} go run main.go \
    --repository={GCLOUD_REPOSITORY_URL}

To turn the dry-run mode off, use:

env GOOGLE_APPLICATION_CREDENTIALS={PATH_TO_SERVICE_ACCOUNT_FILE} go run main.go \
    --repository={GCLOUD_REPOSITORY_URL} \
    --dry-run=false

See the list of available flags:

Name	Required	Description
--repository	Yes	The GCR repository name.
--dry-run	No	The boolean value that controls the dry-run mode. Defaults to `true`.
--age-in-hours	No	The integer value for the number of hours. It only matches images older than `now()-ageInHours`. Defaults to `24`.
--gcr-exclude-name-regex	Yes	The string value with a valid Go regexp. Used to exclude matched repositories by their name.

See the list of available environment variables:

Name	Required	Description
GOOGLE_APPLICATION_CREDENTIALS	Yes	The path to the service account file. The service account requires at least the `browser` and `roles/storage.legacyBucketOwner` Google IAM roles.