Allow null values for labels and ports, convert to empty lists

Signed-off-by: Simon Caron <simon.caron.8@gmail.com>

.ansible-lint

@@ -0,0 +1,10 @@
+---
+
+exclude_paths:
+  - .github/
+  - molecule/
+
+warn_list:
+  - internal-error
+
+# vi: ft=yaml

.github/workflows/release.yml

@@ -1,3 +1,4 @@
+---
 name: Release
 on:
   workflow_dispatch:
@@ -9,7 +10,6 @@ env:
   GALAXY_USERNAME: IronicBadger
 
 jobs:
-
   release:
     name: Release
     runs-on: ubuntu-latest
@@ -29,4 +29,5 @@ jobs:
       - name: Trigger a new import on Galaxy.
         run: >-
           ansible-galaxy role import --api-key ${{ secrets.GALAXY_API_KEY }}
-          $(echo ${{ env.GALAXY_USERNAME }}) $(echo ${{ github.repository }} | cut -d/ -f2)
+          $(echo ${{ env.GALAXY_USERNAME }})
+          $(echo ${{ github.repository }} | cut -d/ -f2)

.yamllint

@@ -0,0 +1,8 @@
+---
+
+extends: default
+
+ignore: |
+  .github/
+
+# vi: ft=yaml

README.md

@@ -79,4 +79,21 @@ containers:
     mem_limit: 128m
     ports:
       - "4242:4242"
+  - service_name: netbox
+    active: true
+	image: docker.io/netboxcommunity/netbox:v3.6-2.7.0
+	anchor: netbox
+	user: "unit:root"
+  - service_name: netbox-worker
+    active: true
+	fragment: netbox
+	command:
+	  - /opt/netbox/venv/bin/python
+	  - /opt/netbox/netbox/manage.py
+	  - rqworker
+  - service_name: netbox-housekeeping
+    active: true
+	fragment: netbox
+	command:
+	  - /opt/netbox/housekeeping.sh
 ```

defaults/main.yml

@@ -1,4 +1,4 @@
 ---
 docker_compose_generator_output_path: "~"
 docker_compose_generator_uid: "1000"
-docker_compose_generator_gid: "1000"
+docker_compose_generator_gid: "1000"

meta/main.yml

@@ -1,9 +1,11 @@
 ---
 galaxy_info:
   role_name: docker_compose_generator
+  namespace: ironicbadger
   author: Alex Kretzschmar
   description: Create a docker-compose.yml file
-  issue_tracker_url: https://github.com/ironicbadger/ansible-role-create-users/issues
+  issue_tracker_url: "https://github.com/ironicbadger/\
+                      ansible-role-create-users/issues"
   license: GPLv2
   min_ansible_version: 2.4
   platforms:

tasks/main.yml

@@ -1,12 +1,14 @@
 ---
-- name: ensure destination for compose file exists
-  file:
+- name: Ensure destination for compose file exists
+  ansible.builtin.file:
     path: "{{ docker_compose_generator_output_path }}"
     state: directory
+    mode: 0755
 
-- name: write docker-compose file
-  template:
-    src: ../templates/docker-compose.yml.j2
+- name: Write docker-compose file
+  ansible.builtin.template:
+    src: docker-compose.yml.j2
     dest: "{{ docker_compose_generator_output_path }}/docker-compose.yml"
     owner: "{{ docker_compose_generator_uid }}"
-    group: "{{ docker_compose_generator_gid }}"
+    group: "{{ docker_compose_generator_gid }}"
+    mode: 0644

templates/docker-compose.yml.j2

@@ -3,8 +3,13 @@
 services:
 {% for container in containers %}
 {% if container.active %}
-  {{ container.service_name }}:
+  {{ container.service_name }}:{% if container.anchor is defined %} &{{ container.anchor }}{% endif %}
+
+{% if container.fragment is defined %}
+    <<: *{{ container.fragment }}
+{% else %}
     image: {{ container.image }}
+{% endif %}
     container_name: {{ container.container_name | default(container.service_name) }}
 {% if container.extra_hosts is defined %}
     extra_hosts:
@@ -15,6 +20,24 @@ services:
 {% if container.network_mode is defined %}
     network_mode: {{ container.network_mode }}
 {% endif %}
+{% if container.networks is defined %}
+    networks:
+{% if container.networks is iterable and (container.networks is not string and container.networks is not mapping) %}
+{% for network in container.networks %}
+      - {{ network }}
+{% endfor %}
+{% else %}
+{% for network, params in container.networks.items() %}
+      {{ network }}:
+{% if params.aliases is defined %}
+        aliases:
+{% for alias in params.aliases %}
+          - {{ alias }}
+{% endfor %}
+{% endif %}
+{% endfor %}
+{% endif %}
+{% endif %}
 {% if container.build is defined %}
     build: {{ container.build }}
 {% endif %}
@@ -49,12 +72,19 @@ services:
 {% endfor %}
 {% endif %}
 {% if container.labels is defined %}
+{% if container.labels is none %}
+    labels: []
+{% else %}
     labels:
 {% for label in container.labels %}
       - {{ label }}
 {% endfor %}
 {% endif %}
+{% endif %}
 {% if container.ports is defined %}
+{% if container.ports is none %}
+    ports: []
+{% else %}
     ports:
 {% for port in container.ports %}
       - {{ port }}
@@ -200,3 +230,17 @@ services:
 {% endif %}
 {% endif %}
 {% endfor %}
+{% if docker_networks is defined %}
+networks:
+{% for network in docker_networks %}
+{% if network.active %}
+  {{ network.network_name }}:
+{% if network.external is defined %}
+    external: {{ network.external }}
+{% endif %}
+{% if network.driver is defined %}
+    driver: {{ network.driver }}
+{% endif %}
+{% endif %}
+{% endfor %}
+{% endif %}