feat: Create service for Node Exporter.

prometheus-slave/main.yml

@@ -4,19 +4,19 @@
   become: yes
 
   tasks:
-    - name: Create node-exporter group
+    - name: Create node_exporter group
       group:
-        name: "node-exporter"
+        name: "node_exporter"
         state: present
         system: true
 
-    - name: Create node-exporter user
+    - name: Create node_exporter user
       user:
-        name: "node-exporter"
+        name: "node_exporter"
-        group: "node-exporter"
+        group: "node_exporter"
         comment: "Node Exporter"
         shell: /bin/false
-        home: "/usr/local/bin/node-exporter"
+        home: "/usr/sbin/nologin"
         system: true
         state: present
 
@@ -30,8 +30,28 @@
     - name: Move the binary to the installation directory
       copy:
         src: "/tmp/node_exporter-{{ node_exporter_version }}.linux-amd64/node_exporter"
-        dest: "/usr/local/bin/node-exporter"
+        dest: "/usr/local/bin/node_exporter"
-        owner: "node-exporter"
+        owner: "node_exporter"
-        group: "node-exporter"
+        group: "node_exporter"
         mode: 0755
         remote_src: true
+
+    - name: Remove archive
+      file:
+        path: /tmp/node_exporter-{{ node_exporter_version }}.linux-amd64/
+        state: absent
+
+    - name: Install service
+      template:
+        src: node_exporter.service.j2
+        dest: /etc/systemd/system/node_exporter.service
+        owner: root
+        group: root
+        mode: 0755
+
+    - name: Restart service and pickup changes
+      systemd:
+        state: restarted
+        daemon_reload: yes
+        name: node_exporter.service
+        enabled: yes

prometheus-slave/templates/node_exporter.service.j2

@@ -0,0 +1,15 @@
+[Unit]
+Description=Node Exporter
+Wants=network-online.target
+After=network-online.target
+StartLimitIntervalSec=500
+StartLimitBurst=5
+[Service]
+User=node_exporter
+Group=node_exporter
+Type=simple
+Restart=on-failure
+RestartSec=5s
+ExecStart=/usr/local/bin/node_exporter
+[Install]
+WantedBy=multi-user.target