gioamato / kube-cleanup-operator

Kubernetes Operator to automatically delete completed Jobs and their Pods

Kubernetes cleanup operator

Experimental Kubernetes Operator to automatically delete completed Jobs and their Pods. Controller listens for changes in Pods created by Jobs and deletes it on Completion.

Some defaults:

• All Namespaces are monitored by default
• Only Pods created by Jobs are monitored

Usage

# remember to change namespace in RBAC manifests for monitoring namespaces other than "default"

kubectl create -f https://raw.githubusercontent.com/lwolf/kube-cleanup-operator/master/deploy/rbac.yaml

# create deployment
kubectl create -f https://raw.githubusercontent.com/lwolf/kube-cleanup-operator/master/deploy/deployment.yaml


kubectl logs -f $(kubectl get pods --namespace default -l "run=cleanup-operator" -o jsonpath="{.items[0].metadata.name}")

# Use simple job to test it
kubectl create -f https://k8s.io/examples/controllers/job.yaml

Docker images

docker pull quay.io/lwolf/kube-cleanup-operator

or you can build it yourself as follows:

$ make install_deps
$ make build
$ cp bin/kube-cleanup-operator .
$ docker build .

Development

$ make install_deps
$ make build
$ ./bin/kube-cleanup-operator --help
Usage of ./bin/kube-cleanup-operator:
  -namespace string
    	Watch only this namespaces (omit to operate clusterwide)
  -run-outside-cluster
    	Set this flag when running outside of the cluster.
  -keep-successful
        the number of hours to keep a succesfull job
        -1 - forever 
        0  - never (default)
        >0 - number of hours
  -keep-failures
        the number of hours to keep a failed job
        -1 - forever (default)
        0  - never
        >0 - number of hours
  -keep-pending
        the number of hours to keep a pending job
        -1 - forever (default)
        0  - forever
        >0 - number of hours
  -dry-run
        Perform dry run, print only
        
$ ./bin/kube-cleanup-operator --run-outside-cluster --namespace=default --keep-successful=0 --keep-failures=-1 --keep-pending=-1

Optional parameters

DISCLAIMER: These parameters are not supported on this project since they are implemented by the underlying libraries. Any malfunction regarding the use them is not covered by this GitHub repository. They are included in this documentation since the debugging process is simplified.

-alsologtostderr
  log to standard error as well as files
-log_backtrace_at value
  when logging hits line file:N, emit a stack trace
-log_dir string
  If non-empty, write log files in this directory
-logtostderr
  log to standard error instead of files
-vmodule value
  comma-separated list of pattern=N settings for file-filtered logging