Finished lb and db

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

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
-