Add production publishing-api postgres 17 upgrade

Author: jfharden

terraform/deployments/rds/production_publishing-api_postgres_17_upgrade.tf

@@ -0,0 +1,25 @@
+resource "aws_db_parameter_group" "publishing_api_postgresql_17_green_params" {
+
+  name_prefix = "${var.govuk_environment}-publishing-api-postgres-"
+  family      = "postgres17"
+
+  parameter {
+    name         = "rds.logical_replication"
+    value        = "1"
+    apply_method = "pending-reboot"
+  }
+
+  parameter {
+    name         = "max_logical_replication_workers"
+    value        = "20"
+    apply_method = "pending-reboot"
+  }
+
+  parameter {
+    name         = "max_worker_processes"
+    value        = "25"
+    apply_method = "pending-reboot"
+  }
+
+  lifecycle { create_before_destroy = true }
+}