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

awx/main/utils/external_logging.py

@@ -116,7 +116,7 @@ def construct_rsyslog_conf_template(settings=settings):
 def reconfigure_rsyslog():
     tmpl = construct_rsyslog_conf_template()
     # Write config to a temp file then move it to preserve atomicity
-    with tempfile.TemporaryDirectory(prefix='rsyslog-conf-') as temp_dir:
+    with tempfile.TemporaryDirectory(dir='/var/lib/awx/rsyslog/', prefix='rsyslog-conf-') as temp_dir:
         path = temp_dir + '/rsyslog.conf.temp'
         with open(path, 'w') as f:
             os.chmod(path, 0o640)