[prometheus-nginx-exporter] Wait for network to be up to start the exporter

roles/prometheus-nginx-exporter/handlers/main.yml

@@ -8,3 +8,7 @@
   service:
     name: prometheus-nginx-exporter
     state: restarted
+
+- name: systemctl daemon-reload
+  systemd:
+    daemon_reload: true

roles/prometheus-nginx-exporter/tasks/main.yml

@@ -31,3 +31,14 @@
     dest: /etc/nginx/sites-enabled/status
     state: link
   notify: Restart nginx
+
+- name: Create /etc/systemd/system/prometheus-nginx-exporter.service.d/
+  file:
+    path: /etc/systemd/system/prometheus-nginx-exporter.service.d/
+    state: directory
+
+- name: Patch prometheus-nginx-exporter service
+  template:
+    src: systemd/system/prometheus-nginx-exporter.service.d/override.conf.j2
+    dest: /etc/systemd/system/prometheus-nginx-exporter.service.d/override.conf
+  notify: systemctl daemon-reload

roles/prometheus-nginx-exporter/templates/systemd/system/prometheus-nginx-exporter.service.d/override.conf.j2

@@ -0,0 +1,2 @@
+[Unit]
+After=network-online.target