Python based controller that labels the pods running in the default namespace

For local development

The script uses the local k8s config context ( ~/.kube/config )

python3 -m venv .venv

source .venv/bin/activate

python3 -m pip install -r requirements.txt

python3 labelPodsController.py

To deploy in a cluster

Create a container using the provided dockerfile

docker build -t label-pods-controller:0.0.1 .

Tag for your favourite repository

docker tag label-pods-controller:0.0.1 localhost:32000/label-pods-controller:0.0.1

Push the image to the registry

docker push localhost:32000/label-pods-controller:0.0.1

Apply the RBAC related yaml files ( this includes a service account, a role and a rolebinding )

kubectl apply -f yaml/rbac

Test by deploying a pod

kubectl run --image=nginx my-nginx8

Or by provisioning a deploymnet

kubectl create deployment kubernetes-bootcamp --image=gcr.io/google-samples/kubernetes-bootcamp:v1

The labels should get set on the newly created pods or any edited pod (try remove or change the labels)

To do

Handle error on naked pod deletion ( and any permananet pod removal ); need to look at the logic loop.
Improve on the deployment ( security context, etc).