go get github.com/dollarshaveclub/thermite
brew tap dollarshaveclub/homebrew-public
brew install thermite
docker pull dollarshaveclub/thermite
Remove old and undeployed Amazon Elastic Container Registry images
Thermite removes old Amazon Elastic Container Registry images that are not deployed in a Kubernetes cluster.
Thermite checks for a resource tag (thermite:prune-period by default) on each repository in an Elastic Container Registry. This tag specifies the number of days that must pass after an image in the repository has been pushed before is pruned.
Thermite surveys the image names of the containers associated with every CronJob, DaemonSet, Deployment, Job, and StatefulSet in a Kubernetes cluster, and excludes these images from removal.
Thermite expects shared environment configuration and credentials to exist for the AWS account whose default Elastic Container Registry is to be pruned, as described by the "Configuration and credentials" subsection of the "Configuring the AWS CLI" section of the AWS Command Line Interface User Guide.
If Thermite is not running inside the Kubernetes cluster that is to be surveyed, Thermite expects a Kubernetes configuration to exist as described in the "Organizing Cluster Access Using kubeconfig Files" subsection of the "Configuration" section of the Kubernetes Concepts documentation.
Thermite will submit DogStatsD metrics to the address specified by the DD_AGENT_HOST and DD_DOGSTATSD_PORT environment variables if they are set. Thermite will submit Datadog APM spans and profiles to the address specified by the DD_AGENT_HOST and DD_TRACE_AGENT_PORT environment variables if they are set.
thermite [flags]
-h, --help help for thermite
--page-size uint number of items returned in paginated API responses
--period-tag-key string AWS resource tag to check for prune period (default "thermite:prune-period")
-y, --remove-images enables removal of eligible images from ECR
--statsd-namespace string namespace to add to statsd metrics (default "thermite")
--statsd-tag strings tag to add to statsd metrics (supports multiple flags)