Delete pods in kubernetes that are with the status of either completed or error

delete_completed_error_pods.sh

#!/bin/bash

# Check if kubectl is configured to connect to the AKS cluster
if ! command -v kubectl &> /dev/null
then
    echo "kubectl could not be found. Please install kubectl and configure it to access your AKS cluster."
    exit 1
fi

# Get the list of pods that are either in Completed or Error state
echo "Fetching pods in Completed (Succeeded) or Error (Failed) state..."
PODS=$(kubectl get pods --all-namespaces -o custom-columns="NAMESPACE:.metadata.namespace,POD:.metadata.name,STATUS:.status.phase" | grep -E 'Succeeded|Failed')

# Check if any such pods are found
if [[ -z "$PODS" ]]; then
    echo "No Completed or Error pods found."
    exit 0
fi

# Loop through each pod and delete it
echo "Deleting Completed or Error pods..."

while read -r line
do
    # Extract namespace, pod name, and pod status
    NAMESPACE=$(echo $line | awk '{print $1}')
    POD=$(echo $line | awk '{print $2}')
    STATUS=$(echo $line | awk '{print $3}')

    # Delete the pod
    echo "Deleting pod $POD in namespace $NAMESPACE with status $STATUS..."
    kubectl delete pod -n $NAMESPACE $POD
done <<< "$PODS"

echo "Completed deleting all Completed or Error pods."