#!/bin/bash
# Example script for cleanup and recreation of Kubernetes resources

set -e

RESOURCE_NAME="${RESOURCE_NAME:-example-deployment}"
NAMESPACE="${NAMESPACE:-default}"

echo "Starting cleanup and recreation process..."

# Step 1: Delete old resource
echo "Deleting old deployment: ${RESOURCE_NAME}"
kubectl delete deployment "${RESOURCE_NAME}" -n "${NAMESPACE}" --ignore-not-found=true

# Step 2: Wait for complete deletion
echo "Waiting for deployment deletion..."
kubectl wait --for=delete deployment/"${RESOURCE_NAME}" -n "${NAMESPACE}" --timeout=300s 2>/dev/null || true

# Step 3: Create new resource from manifest
echo "Creating new deployment..."
cat <<EOF | kubectl apply -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: ${RESOURCE_NAME}
  namespace: ${NAMESPACE}
spec:
  replicas: 3
  selector:
    matchLabels:
      app: ${RESOURCE_NAME}
  template:
    metadata:
      labels:
        app: ${RESOURCE_NAME}
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80
EOF

# Step 4: Wait for new deployment to be ready
echo "Waiting for deployment to be ready..."
kubectl wait --for=condition=available deployment/"${RESOURCE_NAME}" -n "${NAMESPACE}" --timeout=300s

echo "Deployment ${RESOURCE_NAME} successfully recreated!"