Commit initial

README.md

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+# Role : nodeexporter
+
+## Services fournis
+
+- main.yml : Installation de nodeexporter sur un serveur avec rôle common
+
+
+## Variables
+
+```yaml
+nodeexporter_base_url: https://github.com/prometheus/node_exporter/releases/download/v1.3.1
+nodeexporter_package: node_exporter-1.3.1.linux-amd64
+```
+
+
+| Option                      | Valeur par défaut | Description                                                 |
+|-----------------------------|-------------------|-------------------------------------------------------------|
+| nodeexporter_port           | 9100              | Le numero de port local pour l'accès à nodeexporter         |
+| nodeexporter_base_url       |                   | La base de l'url depuis laquelle télécharger le package     |
+| nodeexporter_package        |                   | Le nom du package nodeexporter à installer, sans le suffixe |
+| nodeexporter_package_suffix | .tar.gz           | Le suffixe du package nodeexporter                          |
+
+

defaults/main.yml

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+nodeexporter_port: "9100"
+nodeexporter_package_suffix: .tar.gz

handlers/main.yml

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+- name: nodeexporter-restart
+  systemd:
+    name: node_exporter
+    daemon_reload: yes
+    state: restarted
+    enabled: yes

tasks/main.yml

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+- name: Download nodeexporter
+  get_url:
+    url: "{{ nodeexporter_base_url }}/{{ nodeexporter_package }}{{ nodeexporter_package_suffix }}"
+    dest: /tmp/
+    mode: '0444'
+  delegate_to: localhost
+
+- name: create user node_exporter
+  user:
+    name: node_exporter
+    system: yes
+    shell: /bin/false
+    create_home: no
+
+- name: Extract nodeexporter
+  ansible.builtin.unarchive:
+    src: /tmp/{{ nodeexporter_package }}{{ nodeexporter_package_suffix }}
+    dest: /usr/local/sbin/
+    remote_src: no
+    mode: 0755
+    owner: root
+    extra_opts:
+      - "--strip-components"
+      - "1"
+      - "{{ nodeexporter_package }}/node_exporter"
+  notify: nodeexporter-restart
+
+- name: prepare systemd
+  template:
+    src: node_exporter.service
+    dest: /etc/systemd/system/node_exporter.service
+  notify: nodeexporter-restart
+  
+- name: prepare config
+  template:
+    src: node_exporter.default
+    dest: /etc/default/node_exporter
+  notify: nodeexporter-restart
+

templates/node_exporter.default

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+OPTIONS="--collector.textfile.directory /var/lib/node_exporter/textfile_collector"

templates/node_exporter.service

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+[Unit]
+Description=Node Exporter
+
+[Service]
+User=node_exporter
+EnvironmentFile=/etc/default/node_exporter
+ExecStart=/usr/local/sbin/node_exporter $OPTIONS
+
+[Install]
+WantedBy=multi-user.target