DCD-938: DB Config pre-seeding

aws_crowd_dc_node.yml

@@ -10,6 +10,13 @@
     atl_use_system_jdk: true
     atl_download_format: "tarball"
 
+    atl_startup_systemd_params:
+      - "Environment=JDBC_DRIVER={{ atl_db_driver }}"
+      - "Environment=JDBC_DIALECT=org.hibernate.dialect.PostgreSQLDialect"
+      - "Environment=JDBC_USER={{ atl_jdbc_user }}"
+      - "Environment=JDBC_PASSWORD={{ atl_jdbc_password }}"
+      - "Environment=JDBC_URL={{ atl_jdbc_url }}"
+
   roles:
     - role: linux_common
     - role: aws_common