Merge pull request #2665 from edx/e0d/fix-Gemfile.lock-perms

bundle install needs to write to the Gemfile.lock

playbooks/roles/forum/tasks/deploy.yml

@@ -49,6 +49,15 @@
     - install
     - install:code
 
+- name: make Gemfile.lock writable by common_web_user
+  file:
+    path: "{{ forum_code_dir}}/Gemfile.lock"
+    owner: "{{ common_web_user }}"
+  tags:
+    - install
+    - install:code
+    - install:app-requirements
+
 # TODO: This is done as the common_web_user
 # since the process owner needs write access
 # to the rbenv