Consolidate the Local Docker installer and the dev env

- removes local_docker installer and points community users to our development environment (make docker-compose)
  - provides a migration path from Local Docker Compose installations --> the dev environment
  - the dev env can now be configured to use an external database
  - consolidated the Local Docker and dev env docker-compose.yml files into one template file, used by the dockerfile role
  - added a 'sources' role to template out config files
  - the postgres data dir is no longer a bind-mount, it is a docker volume
  - the redis socket is not longer a bind-mount, it is a docker volume
  - the local_settings.py.docker-compose file no longer needs to be copied over in the dev env
  - Create tmp rsyslog.conf in rsyslog volume to avoid cross-linking. Previously, the tmp code-generated rsyslog.conf was being written to /tmp (by default).  As a result, we were attempting to shutil.move() across volumes.
  - move k8s image build and push roles under tools/ansible
  - See tools/docker-compose/README.md for usage of these changes

tools/docker-credential-plugins-override.yml

@@ -18,9 +18,10 @@ services:
 
   conjur:
     image: cyberark/conjur
+    container_name: tools_conjur_1
     command: server -p 8300
     environment:
-      DATABASE_URL: postgres://postgres@postgres/postgres
+      DATABASE_URL: postgres://awx@postgres/postgres
       CONJUR_DATA_KEY: 'dveUwOI/71x9BPJkIgvQRRBF3SdASc+HP4CUGL7TKvM='
     depends_on:
       - postgres