Re-add Portainer Git dir

docker/docker-compose.prod.yml

@@ -4,9 +4,9 @@ services:
   app:
     image: pathogen/monolith:latest
     container_name: monolith
-    build: .
+    build: ${PORTAINER_GIT_DIR}/docker
     volumes:
-     - ..:/code
+      - ${PORTAINER_GIT_DIR}:/code
     env_file:
       - ../stack.env
     networks:
@@ -19,7 +19,7 @@ services:
     container_name: threshold
     build: ../legacy/docker
     volumes:
-      - ..:/code
+      - ${PORTAINER_GIT_DIR}:/code
       - ${THRESHOLD_CONFIG_DIR}:/code/legacy/conf/live
       #- ${THRESHOLD_TEMPLATE_DIR}:/code/conf/templates
       - ${THRESHOLD_CERT_DIR}:/code/legacy/conf/cert