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-compose/ansible/roles/migrate/defaults/main.yml

@@ -0,0 +1,5 @@
+---
+postgres_data_dir: "~/.awx/pgdocker"
+migrate_local_docker: false
+old_docker_compose_dir: "~/.awx/awxcompose"
+pg_volume_name: "postgres_data"

tools/docker-compose/ansible/roles/migrate/tasks/main.yml

@@ -0,0 +1,5 @@
+---
+
+# Migrate data from a bind-mount to a volume
+- import_tasks: migrate-from-local-docker.yml
+  when: migrate_local_docker

tools/docker-compose/ansible/roles/migrate/tasks/migrate-from-local-docker.yml

@@ -0,0 +1,46 @@
+---
+
+# Migrate data from old Local Docker to a fresh development environment
+- name: Remove awx_postgres to ensure consistent start state
+  shell: |
+    docker rm -f awx_postgres
+
+- name: Start Local Docker database container
+  docker_compose:
+    project_src: "{{ old_docker_compose_dir }}"
+    services:
+      - postgres
+    state: present
+    recreate: always
+
+- name: Database dump to local filesystem
+  shell: |
+    docker-compose -f {{ old_docker_compose_dir }}/docker-compose.yml exec -T postgres pg_dumpall -U {{ pg_username }} > awx_dump.sql
+
+- name: Stop AWX containers so the old postgres container does not get used
+  docker_compose:
+    project_src: "{{ old_docker_compose_dir }}"
+    state: absent
+  ignore_errors: true
+
+- name: Start dev env database container
+  docker_compose:
+    project_src: "{{ playbook_dir }}/../_sources"
+    files: "docker-compose.yml"
+    services:
+      - postgres
+    state: present
+    recreate: always
+
+- name: Wait for postgres to initialize
+  wait_for:
+    timeout: 3
+
+- name: Restore to new postgres container
+  shell: |
+    docker-compose -f {{ playbook_dir }}/../_sources/docker-compose.yml exec -T postgres psql -U {{ pg_username }} -d {{ pg_database }} -p {{ pg_port }} < awx_dump.sql
+
+- name: Clean up temporary awx db dump
+  file:
+    path: awx_dump.sql
+    state: absent