allow using web config file

Signed-off-by: modship <[email protected]>

Author: modship

roles/alertmanager/tasks/configure.yml

@@ -21,6 +21,15 @@
   notify:
     - restart alertmanager
 
+- name: Configure alertmanager web
+  ansible.builtin.copy:
+    content: "{{ alertmanager_web_config | to_nice_yaml(indent=2, sort_keys=False) }}"
+    dest: "{{ alertmanager_config_dir }}/web.yml"
+    force: true
+    owner: alertmanager
+    group: alertmanager
+    mode: 0644
+
 - name: Create systemd service unit
   ansible.builtin.template:
     src: alertmanager.service.j2

roles/alertmanager/templates/alertmanager.service.j2

@@ -42,6 +42,9 @@ ExecStart={{ _alertmanager_binary_install_dir }}/alertmanager \
 {%   endfor %}
 {% else %}
   {{ pre }}-web.listen-address={{ alertmanager_web_listen_address }} \
+{% endif %}
+{% if alertmanager_web_config is defined %}
+  {{ pre }}-web.config.file={{ alertmanager_config_dir }}/web.yml
 {% endif %}
   {{ pre }}-web.external-url={{ alertmanager_web_external_url }}{% for flag, flag_value in alertmanager_config_flags_extra.items() %} \
   {{ pre }}-{{ flag }}={{ flag_value }}{% endfor %}