Feature/dns

iam_role.tf

@@ -82,3 +82,21 @@ resource "aws_iam_role_policy_attachment" "s3_access" {
   role       = aws_iam_role.app_ec2_role.name
   policy_arn = aws_iam_policy.s3_app_policy.arn
 }
+
+# -----------
+# CloudWatch
+# -----------
+
+# Grants CloudWatch Agent permissions to create log groups/streams and put log events,
+# and to send custom metrics (PutMetricData).
+resource "aws_iam_role_policy_attachment" "cloudwatch_agent" {
+  role       = aws_iam_role.app_ec2_role.name
+  policy_arn = "arn:aws:iam::aws:policy/CloudWatchAgentServerPolicy"
+}
+
+# Enables SSM connectivity (optional but highly recommended to manage the instance/agent
+# without SSH and to fetch agent binaries or run commands).
+resource "aws_iam_role_policy_attachment" "ssm_core" {
+  role       = aws_iam_role.app_ec2_role.name
+  policy_arn = "arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore"
+}

rds.tf

@@ -26,8 +26,9 @@ resource "random_password" "rds" {
 
 # Store the generated pwd in AWS Secrets Manager
 resource "aws_secretsmanager_secret" "rds" {
-  name        = "${var.name_prefix}-rds-master-password"
-  description = "Master password for the ${var.name_prefix} RDS instance"
+  name                    = "${var.name_prefix}-rds-master-strong-password"
+  description             = "Master password for the ${var.name_prefix} RDS instance"
+  recovery_window_in_days = 0
 }
 
 resource "aws_secretsmanager_secret_version" "rds" {

route53_records.tf

@@ -0,0 +1,24 @@
+# Decide at plan time if we create DNS (e.g., public subnet envs)
+variable "create_dns_record" {
+  type        = bool
+  description = "Whether to create the Route53 A record for the app."
+  default     = true
+}
+
+data "aws_route53_zone" "env" {
+  name         = var.route53_zone_name
+  private_zone = false
+}
+
+# Safety check — only create the record if an IP is found
+resource "aws_route53_record" "env_apex_a" {
+  count = var.create_dns_record != "" ? 1 : 0
+
+  zone_id = data.aws_route53_zone.env.zone_id
+  name    = var.record_name
+  type    = "A"
+  ttl     = var.record_ttl
+  records = [aws_instance.app.public_ip]
+
+  allow_overwrite = true
+}

scripts/user_data.sh

@@ -32,3 +32,36 @@ systemctl enable "${service_name}.service"
 systemctl restart "${service_name}.service"
 
 info "=== Web App started successfully ==="
+
+# ---------------------------------------------------------------------------
+# CloudWatch Agent: Refresh and start using baked config (from Packer)
+# ---------------------------------------------------------------------------
+CWA_BIN="/opt/aws/amazon-cloudwatch-agent/bin/amazon-cloudwatch-agent-ctl"
+CWA_CFG="/opt/aws/amazon-cloudwatch-agent/etc/amazon-cloudwatch-agent.json"
+
+info "=== Preparing CloudWatch Agent ==="
+
+# Ensure application log directory exists (for ${app_dir}/log/app.log)
+install -d -m 0755 -o "${app_user}" -g "${app_group}" "${app_dir}/log" || true
+
+if [ -x "$CWA_BIN" ] && [ -f "$CWA_CFG" ]; then
+  info "CloudWatch Agent binary and config found. Enabling and refreshing..."
+
+  # Enable on boot (idempotent)
+  systemctl enable amazon-cloudwatch-agent || true
+
+  # Stop agent if running (safe if it's not)
+  "$CWA_BIN" -a stop || true
+
+  # Fetch baked config and start
+  "$CWA_BIN" -a fetch-config -m ec2 -c file:"$CWA_CFG" -s
+
+  # Check service status (non-fatal)
+  systemctl status amazon-cloudwatch-agent --no-pager || true
+
+  info "CloudWatch Agent started with baked config."
+else
+  err "CloudWatch Agent binary or config not found. Skipping agent start."
+fi
+
+info "=== User data script completed successfully ==="

variables.tf

@@ -150,6 +150,29 @@ variable "s3_prefix" {
   default     = ""
 }
 
+variable "route53_zone_name" {
+  description = "Public hosted zone name for this environment (e.g., dev.domain.tld or demo.domain.tld)"
+  type        = string
+}
+
+variable "app_public_ip" {
+  description = "Fallback IP if no in-plan EC2 resource is referenced"
+  type        = string
+  default     = ""
+}
+
+variable "record_name" {
+  description = "Record name inside the zone; empty string for apex"
+  type        = string
+  default     = ""
+}
+
+variable "record_ttl" {
+  description = "TTL for A records"
+  type        = number
+  default     = 300
+}
+
 variable "tags" {
   description = "Common tags applied to all resources"
   type        = map(string)