initial ansible code

roles/node_exporter/tasks/main.yml

@@ -0,0 +1,69 @@
+---
+- name: Create node_exporter group
+  group:
+    name: "{{ node_exporter_system_group }}"
+    state: present
+    system: true
+  when: node_exporter_system_group != "root"
+
+- name: Create node_exporter user
+  user:
+    name: "{{ node_exporter_system_user }}"
+    group: "{{ node_exporter_system_group }}"
+    groups: "{{ node_exporter_system_group }}"
+    append: true
+    shell: /usr/sbin/nologin
+    system: true
+    create_home: false
+    home: /
+
+- name: Get latest node_exporter version
+  github_release:
+    user: prometheus
+    repo: node_exporter
+    action: latest_release
+    token: "{{ vault_github_token }}"
+  delegate_to: localhost
+  run_once: true
+  register: node_exporter_version
+- name: "{{ node_exporter_version }}"
+  set_fact:
+    node_exporter_version: "{{ node_exporter_version | replace ('v', '', 1) | trim }}"
+  run_once: true
+
+- name: download node_exporter {{ node_exporter_version.tag }} from GitHub
+  get_url:
+    url: "https://github.com/prometheus/node_exporter/releases/download/\
+          v{{ node_exporter_version.tag }}/node_exporter-{{ node_exporter_version.tag }}\
+          .linux-{{ deb_architecture }}.tar.gz"
+    dest: "/tmp/node_exporter-{{ node_exporter_version.tag }}-linux-{{ deb_architecture }}.tar.gz"
+  register: _download_archive
+  until: _download_archive is succeeded
+  retries: 3
+  delay: 5
+
+- name: unpack node_exporter binaries
+  unarchive:
+    src: "/tmp/node_exporter-{{ node_exporter_version.tag }}-linux-{{ deb_architecture }}.tar.gz"
+    dest: "/tmp"
+    creates: "node_exporter-{{ node_exporter_version.tag }}.linux-{{ deb_architecture }}"
+    remote_src: true
+
+- name: Copy node_exporter
+  copy:
+    src: "/tmp/node_exporter-{{ node_exporter_version.tag }}.linux-{{ deb_architecture }}/node_exporter"
+    dest: "{{ node_exporter_install_dir }}/node_exporter"
+    remote_src: true
+    owner: "{{ node_exporter_system_user }}"
+    group: "{{ node_exporter_system_group }}"
+    mode: 0755
+  notify: restart node_exporter
+
+- name: Copy node_exporter systemd service
+  template:
+    src: node_exporter.service.j2
+    dest: /etc/systemd/system/node_exporter.service
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart node_exporter