Initial commit.

infrastructure_setup/setup-externaldns.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+set -e
+
+# Navigate to script directory
+SCRIPT_PATH="$(realpath "${BASH_SOURCE[0]}")"
+SCRIPT_DIR="$(dirname "$SCRIPT_PATH")"
+cd "$SCRIPT_DIR"
+
+# Source environment variables
+if [[ -f "../load-env.sh" ]]; then
+  source ../load-env.sh
+fi
+
+echo "Setting up ExternalDNS..."
+
+# Create externaldns namespace
+kubectl create namespace externaldns --dry-run=client -o yaml | kubectl apply -f -
+
+# Setup Cloudflare API token secret for ExternalDNS
+if [[ -n "${CLOUDFLARE_API_TOKEN}" ]]; then
+  echo "Creating Cloudflare API token secret..."
+  kubectl create secret generic cloudflare-api-token \
+    --namespace externaldns \
+    --from-literal=api-token="${CLOUDFLARE_API_TOKEN}" \
+    --dry-run=client -o yaml | kubectl apply -f -
+else
+  echo "Error: CLOUDFLARE_API_TOKEN not set. ExternalDNS will not work correctly."
+  exit 1
+fi
+
+# Apply ExternalDNS manifests with environment variables
+echo "Deploying ExternalDNS..."
+cat ${SCRIPT_DIR}/externaldns/externaldns.yaml | envsubst | kubectl apply -f -
+
+# Wait for ExternalDNS to be ready
+echo "Waiting for ExternalDNS to be ready..."
+kubectl rollout status deployment/external-dns -n externaldns --timeout=60s
+
+# Deploy test services if --test flag is provided
+if [[ "$1" == "--test" ]]; then
+  echo "Deploying test services to verify ExternalDNS..."
+  cat ${SCRIPT_DIR}/externaldns/test-service.yaml | envsubst | kubectl apply -f -
+  cat ${SCRIPT_DIR}/externaldns/test-cname-service.yaml | envsubst | kubectl apply -f -
+  
+  echo "Test services deployed at:"
+  echo "- test.${DOMAIN}"
+  echo "- test-cname.${DOMAIN} (CNAME record)"
+  echo "DNS records should be automatically created in Cloudflare within a few minutes."
+fi
+
+echo "ExternalDNS setup complete!"
+echo ""
+echo "To verify the installation:"
+echo "  kubectl get pods -n externaldns"
+echo "  kubectl logs -n externaldns -l app=external-dns -f"