Fix scripts: remove duplications, hardcoded credentials, and restore proper workflow

- Remove hardcoded Quay.io credentials from build-and-push.sh
- Create common.sh with shared functions to eliminate duplication
- Create rollout-restart.sh for simple updates (recommended workflow)
- Refactor deploy-complete.sh and rollout-restart.sh to use common functions
- Add comprehensive README.md explaining proper workflow
- Restore correct process: git push -> GitHub Actions -> rollout-restart
- Fix security issues and improve maintainability

scripts/rollout-restart.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+# Simple rollout restart script for OpenShift Resource Governance Tool
+# Use this for updates after GitHub Actions has built the new image
+
+set -e
+
+# Source common functions
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+source "$SCRIPT_DIR/common.sh"
+
+echo -e "${BLUE}Rolling out new image for OpenShift Resource Governance Tool${NC}"
+
+# Check if connected to cluster
+check_openshift_connection
+
+# Check if deployment exists
+check_deployment_exists
+
+# Restart deployment to pull new image
+echo -e "${YELLOW}Restarting deployment to pull new image...${NC}"
+oc rollout restart deployment/$DEPLOYMENT_NAME -n $NAMESPACE
+
+# Wait for rollout to complete
+echo -e "${YELLOW}Waiting for rollout to complete...${NC}"
+oc rollout status deployment/$DEPLOYMENT_NAME -n $NAMESPACE --timeout=300s
+
+# Check pod status and logs
+check_pod_status
+
+# Get application URL
+get_application_url
+
+echo -e "${GREEN}SUCCESS: Rollout completed successfully!${NC}"
+
+echo -e "${BLUE}Process completed!${NC}"
+echo -e "${YELLOW}Note: This script only restarts the deployment.${NC}"
+echo -e "${YELLOW}For initial deployment, use: ./scripts/deploy-complete.sh${NC}"