NS Killer

What is NS Killer?

A Kubernetes project to kill all namespace living over X times. Quite useful when auto-generated development environments on the fly and give them a lifecycle out-of-the-box from Kubernetes or even Helm.

Getting started

Docker

docker run -ti -d --name=ns-killer germainlefebvre4/ns-killer

Docker image is avaiblable on Docker Hub.

Kubernetes

kubectl apply -f kubernetes/CronJob

Requirements

Python version needs to be:

• 3.7
• 3.8

Python versions 3.6 and under are not supported because of interpretation of datetime library.

Configuration

The container has no parameters. Configuration is provided by a file at /etc/config/ns-killer.

Configuration file is structured as following:

Attribute	Description	Values	Default	Implemented?
config.dryrun	Enable the dryrun mode	(string) enabled	False	Yes
config.retention.kind	Time unit for the frequency loop	(string) minutes, hours, days, weeks, months	-	Yes
config.retention.time	Time data for the frequency loop	(integer)	-	Yes
config.namespace.exclude	List of namespaces to keep	list of (string)	-	Yes
config.namespace.only	List of namespaces to delete. This parameter make the exclude list evicted.	list of (string)	-	Yes

Example

config:
  dryrun: enabled
  retention:
    kind: hours
    time: 2
namespace:
  exclude:
    - ns-killer
    - kube-system
    - kube-public
    - kube-node-lease
    - default
    - ingress-nginx
    - cert-manager
    - gitlab-managed-apps
    - cattle-system
    - monitoring
    - prometheus
    - jenkins
    - mongodb
    - rabbitmq-ha
    - wordpress
    - gcr-cleanup
  only: []

Where to use this image

Let's run this image in a Kubernetes cluster.

Kubernetes manifest are present in directory kubernetes/.