added shell entrypoint

pbsclient/dev/compose.yml

@@ -4,8 +4,12 @@ services:
     build:
       dockerfile: docker/Dockerfile
       context: ../
+    command: ${COMMAND}
     environment:
       - APP_ENV=${APP_ENV}
       - PBS_PASSWORD=${PBS_PASSWORD}
       - PBS_REPOSITORY=${PBS_REPOSITORY}
       - PBS_FINGERPRINT=${PBS_FINGERPRINT}
+      - MODE=${MODE}
+
+