1 files changed, 51 insertions, 0 deletions
diff --git a/tools/coredns-config-generator.sh b/tools/coredns-config-generator.sh
new file mode 100755
index 0000000..d61d879
--- /dev/null
+++ b/tools/coredns-config-generator.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Generate CoreDNS Corefile configuration
+#
+
+set -euo pipefail
+
+CONFIG_DIR="${CONFIG_DIR:-/etc/cluster-config}"
+COREDNS_DIR="/etc/coredns"
+COREFILE="$COREDNS_DIR/Corefile"
+
+mkdir -p "$COREDNS_DIR"
+
+# Generate Corefile
+cat > "$COREFILE" <<'EOF'
+# CoreDNS Configuration for Kubernetes
+
+cluster.local:53 {
+    errors
+    health {
+        lameduck 5s
+    }
+    ready
+    kubernetes cluster.local in-addr.arpa ip6.arpa {
+        pods insecure
+        fallthrough in-addr.arpa ip6.arpa
+        ttl 30
+    }
+    prometheus :9153
+    forward . /etc/resolv.conf {
+        max_concurrent 1000
+    }
+    cache 30
+    loop
+    reload
+    loadbalance
+}
+
+.:53 {
+    errors
+    health
+    ready
+    forward . 8.8.8.8 8.8.4.4
+    cache 30
+    reload
+}
+EOF
+
+chown -R coredns:coredns "$COREDNS_DIR" 2>/dev/null || true
+
+echo "CoreDNS configuration generated at $COREFILE"