Add Option to enable Prometheus Textfile Collector

defaults/main.yml

@@ -31,6 +31,10 @@ userli_env_vars:
   - name: WKD_FORMAT
     value: "{{ userli_wkd_format }}"
 
+userli_prometheus_textfile_collector_enabled: False
+userli_prometheus_textfile_collector_path: "/var/lib/prometheus/node-exporter/textfile_collector"
+userli_prometheus_textfile_collector_on_calendar: "*-*-* *:*:00"
+
 # munin integration
 userli_munin: false
 

handlers/main.yml

@@ -1,5 +1,4 @@
 ---
-
 - name: restart munin-node
   service:
     name: munin-node
@@ -26,3 +25,15 @@
   service:
     name: "{{ userli_webserver }}"
     state: restarted
+
+- name: reload systemd daemon
+  systemd:
+    daemon_reload: true
+
+- name: restart userli-collector
+  service:
+    name: "{{ item }}"
+    state: restarted
+  loop:
+    - userli-collector.service
+    - userli-collector.timer

molecule/default/converge.yml

@@ -1,9 +1,10 @@
 ---
-
 - name: Converge
   hosts: all
   become: true
   roles:
     - ansible-role-userli
   vars:
     userli_mysql_password: userli
+    userli_munin: true
+    userli_prometheus_textfile_collector_enabled: True

tasks/main.yml

@@ -97,6 +97,10 @@
 - import_tasks: deployment.yml
   when: userli_update|bool
 
+- import_tasks: metrics.yml
+  when: userli_prometheus_textfile_collector_enabled|bool
+  tags: metrics
+
 - import_tasks: munin.yml
   when: userli_munin|bool
   tags: munin

tasks/metrics.yml

@@ -0,0 +1,23 @@
+---
+- name: Copy Textfile Collector Service
+  ansible.builtin.template:
+    src: "{{ item }}.j2"
+    dest: "/etc/systemd/system/{{ item }}"
+    owner: root
+    group: root
+    mode: 0644
+  notify:
+    - reload systemd daemon
+    - restart userli-collector
+  loop:
+    - userli-collector.service
+    - userli-collector.timer
+
+- name: Enable Textfile Collector Service
+  ansible.builtin.systemd:
+    name: "{{ item }}"
+    enabled: yes
+    state: started
+  loop:
+    - userli-collector.service
+    - userli-collector.timer

templates/userli-collector.service.j2

@@ -0,0 +1,13 @@
+[Unit]
+Description=Userli Prometheus Textfile Collector
+After=systemd-modules-load.service
+DefaultDependencies=no
+
+[Service]
+Type=oneshot
+User={{ userli_user }}
+ExecStart=/bin/bash -c 'php {{ userli_symfony_path }}/bin/console app:metrics | sponge {{ userli_prometheus_textfile_collector_path }}/userli.prom'
+SyslogIdentifier=userli-textfile-collector
+
+[Install]
+WantedBy=multi-user.target

templates/userli-collector.timer.j2

@@ -0,0 +1,9 @@
+[Unit]
+Description=Userli Prometheus Textfile Collector Timer
+
+[Timer]
+OnCalendar={{ userli_prometheus_textfile_collector_on_calendar }}
+Persistent=true
+
+[Install]
+WantedBy=timers.target