Add helper script

Author: christensenjairus

examples/kubeconfig/create-kubeconfig-secret.sh

@@ -0,0 +1,123 @@
+#!/bin/bash
+
+# Script to create a kubeconfig secret for the Multicluster Failover Operator
+
+set -e
+
+# Default values
+NAMESPACE="my-operator-namespace"
+KUBECONFIG_PATH="${HOME}/.kube/config"
+KUBECONFIG_CONTEXT=""
+SECRET_NAME=""
+DRY_RUN="false"
+
+# Function to display usage information
+function show_help {
+  echo "Usage: $0 [options]"
+  echo "  -n, --name NAME         Name for the secret (will be used as cluster identifier)"
+  echo "  -s, --namespace NS      Namespace to create the secret in (default: ${NAMESPACE})"
+  echo "  -k, --kubeconfig PATH   Path to kubeconfig file (default: ${KUBECONFIG_PATH})"
+  echo "  -c, --context CONTEXT   Kubeconfig context to use (default: current-context)"
+  echo "  -d, --dry-run           Dry run, print YAML but don't apply"
+  echo "  -h, --help              Show this help message"
+  echo ""
+  echo "Example: $0 -n cluster1 -c prod-cluster -k ~/.kube/config"
+}
+
+# Parse command line options
+while [[ $# -gt 0 ]]; do
+  key="$1"
+  case $key in
+    -n|--name)
+      SECRET_NAME="$2"
+      shift 2
+      ;;
+    -s|--namespace)
+      NAMESPACE="$2"
+      shift 2
+      ;;
+    -k|--kubeconfig)
+      KUBECONFIG_PATH="$2"
+      shift 2
+      ;;
+    -c|--context)
+      KUBECONFIG_CONTEXT="$2"
+      shift 2
+      ;;
+    -d|--dry-run)
+      DRY_RUN="true"
+      shift 1
+      ;;
+    -h|--help)
+      show_help
+      exit 0
+      ;;
+    *)
+      echo "Unknown option: $1"
+      show_help
+      exit 1
+      ;;
+  esac
+done
+
+# Validate required arguments
+if [ -z "$SECRET_NAME" ]; then
+  echo "ERROR: Secret name is required (-n, --name)"
+  show_help
+  exit 1
+fi
+
+if [ ! -f "$KUBECONFIG_PATH" ]; then
+  echo "ERROR: Kubeconfig file not found at: $KUBECONFIG_PATH"
+  exit 1
+fi
+
+# Process the kubeconfig
+echo "Processing kubeconfig..."
+TEMP_KUBECONFIG=$(mktemp)
+trap "rm -f $TEMP_KUBECONFIG" EXIT
+
+if [ -n "$KUBECONFIG_CONTEXT" ]; then
+  kubectl config view --raw --minify --flatten --context="$KUBECONFIG_CONTEXT" > "$TEMP_KUBECONFIG"
+  if [ $? -ne 0 ]; then
+    echo "ERROR: Failed to extract context '$KUBECONFIG_CONTEXT' from kubeconfig"
+    exit 1
+  fi
+  echo "Extracted context '$KUBECONFIG_CONTEXT' from kubeconfig"
+else
+  cp "$KUBECONFIG_PATH" "$TEMP_KUBECONFIG"
+  echo "Using entire kubeconfig file"
+fi
+
+# Encode the kubeconfig
+KUBECONFIG_B64=$(base64 < "$TEMP_KUBECONFIG" | tr -d '\n')
+
+# Create the namespace if it doesn't exist
+if [ "$DRY_RUN" != "true" ]; then
+  kubectl get namespace "$NAMESPACE" &>/dev/null || kubectl create namespace "$NAMESPACE"
+fi
+
+# Generate the secret YAML
+SECRET_YAML=$(cat <<EOF
+apiVersion: v1
+kind: Secret
+metadata:
+  name: ${SECRET_NAME}
+  namespace: ${NAMESPACE}
+  labels:
+    sigs.k8s.io/multicluster-runtime-kubeconfig: "true"
+type: Opaque
+data:
+  kubeconfig: ${KUBECONFIG_B64}
+EOF
+)
+
+# Apply or print the secret
+if [ "$DRY_RUN" == "true" ]; then
+  echo "# YAML that would be applied:"
+  echo "$SECRET_YAML"
+else
+  echo "$SECRET_YAML" | kubectl apply -f -
+  echo "Secret '${SECRET_NAME}' created in namespace '${NAMESPACE}'"
+  echo "The operator should now discover and connect to this cluster"
+fi