Add matrix_prometheus_container_network/matrix_prometheus_container_additional_networks

roles/custom/matrix-prometheus/tasks/setup_install.yml

@@ -45,6 +45,11 @@
     owner: "{{ matrix_user_username }}"
     group: "{{ matrix_user_groupname }}"
 
+- name: Ensure Prometheus container network is created
+  community.general.docker_network:
+    name: "{{ matrix_prometheus_container_network }}"
+    driver: bridge
+
 - name: Ensure matrix-prometheus.service installed
   ansible.builtin.template:
     src: "{{ role_path }}/templates/systemd/matrix-prometheus.service.j2"

roles/custom/matrix-prometheus/tasks/validate_config.yml

@@ -5,3 +5,11 @@
     msg: >
       You need to enable `matrix_prometheus_scraper_synapse_enabled` and/or `matrix_prometheus_scraper_node_enabled` for Prometheus grab metrics.
   when: "not matrix_prometheus_scraper_synapse_enabled and not matrix_prometheus_scraper_node_enabled"
+
+- name: Fail if required Prometheus settings not defined
+  ansible.builtin.fail:
+    msg: >
+      You need to define a required configuration setting (`{{ item }}`).
+  when: "vars[item] == ''"
+  with_items:
+    - matrix_prometheus_container_network