Fix controller logs in docker-machine

With the change apache#3579, controller logs file was not being created due to lack of permissions when OW is deployed on docker-machine. This is because ansible is not able to create a folder with full permissions within a mounted folder in docker-machine. However creating a file with full permissions through ansible does work.

ansible/roles/controller/tasks/deploy.yml

@@ -27,6 +27,14 @@
  mode: 0777
  become: "{{ logs.dir.become }}"
 
+# We need to create the file with proper permissions because the dir creation above
+# does not result in a dir with full permissions in docker machine especially with macos mounts
+- name: ensure controller log file is created with permissions
+ file:
+ path: "{{ whisk_logs_dir }}/{{ controller_name }}/{{ controller_name }}_logs.log"
+ state: touch
+ mode: 0777
+
 - name: ensure controller config directory is created with permissions
  file:
  path: "{{ controller.confdir }}/{{ controller_name }}"