Finished lb and db

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/node_exporter/tasks/get_version.yml

@@ -2,17 +2,17 @@
 - name: Determine latest GitHub release (local)
   delegate_to: localhost
   uri:
-    url: "https://api.github.com/repos/prometheus/node_exporter/releases/{{ node_exporter.version }}"
+    url: "https://api.github.com/repos/prometheus/node_exporter/releases/{{ version }}"
     body_format: json
   register: _github_release
   until: _github_release.status == 200
   retries: 3
 
-- name: Set node_exporter_version
+- name: Set version
   set_fact:
-    node_exporter_version: "{{ _github_release.json.tag_name
+    version: "{{ _github_release.json.tag_name
       | regex_replace('^v?([0-9\\.]+)$', '\\1') }}"
 
-- name: Set node_exporter.download_url
+- name: Set download_url
   set_fact:
-    node_exporter_download_url: "https://github.com/prometheus/node_exporter/releases/download/v{{ node_exporter_version }}/node_exporter-{{ node_exporter_version }}.linux-{{ go_arch }}.tar.gz"
+    download_url: "https://github.com/prometheus/node_exporter/releases/download/v{{ version }}/node_exporter-{{ version }}.linux-{{ go_arch }}.tar.gz"

roles/node_exporter/tasks/install.yml

@@ -1,15 +1,15 @@
 ---
-- name: Download/Extract "{{ node_exporter_download_url }}"
+- name: Download/Extract "{{ download_url }}"
   unarchive:
-    src: "{{ node_exporter_download_url }}"
+    src: "{{ download_url }}"
     dest: /tmp/
     remote_src: true
     mode: 755
 
 - name: Move node_exporter into path
   copy:
-    src: "/tmp/node_exporter-{{ node_exporter_version }}.linux-{{ go_arch }}/node_exporter"
-    dest: "{{ node_exporter.bin_path }}"
+    src: "/tmp/node_exporter-{{ version }}.linux-{{ go_arch }}/node_exporter"
+    dest: "{{ bin_path }}"
     mode: 755
     remote_src: true
   become: true
@@ -26,6 +26,4 @@
     src: node_exporter.service.j2
     dest: /etc/systemd/system/node_exporter.service
     mode: 0644
-  register: node_exporter_service
   become: true
-

roles/node_exporter/tasks/systemd.yml

@@ -1,9 +1,10 @@
 ---
 - name: Ensure node_exporter is running and enabled at boot.
   service:
-    daemon_reload: true
     name: node_exporter
-    state: restarted
+    state: started
+    daemon_reload: true
     enabled: true
-  when: node_exporter_service is changed
+  notify:
+    - Restart node_exporter
   become: true