--- a/prometheus/rpi-client/defaults/main.yaml	Wed May 13 09:25:09 2020 -0500
+++ b/prometheus/rpi-client/defaults/main.yaml	Wed May 13 10:10:07 2020 -0500
@@ -5,3 +5,5 @@
 
 prometheus_client_rpi_src: "https://github.com/lukasmalkmus/rpi_exporter/releases/download/v{{prometheus_client_rpi_exporter_version}}/rpi_exporter-{{prometheus_client_rpi_exporter_version}}.linux-{{prometheus_client_arch}}.tar.gz"
 prometheus_client_rpi_dest: "rpi_exporter-{{prometheus_client_rpi_exporter_version}}.linux-{{prometheus_client_arch}}"
+
+prometheus_client_rpi_collect_gpu_temp: true

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/prometheus/rpi-client/handlers/main.yaml	Wed May 13 10:10:07 2020 -0500
@@ -0,0 +1,5 @@
+---
+
+- name: restart rpi_exporter
+  systemd: name="rpi_exporter.service" state="restarted" daemon_reload="yes"
+  become: yes

--- a/prometheus/rpi-client/tasks/main.yaml	Wed May 13 09:25:09 2020 -0500
+++ b/prometheus/rpi-client/tasks/main.yaml	Wed May 13 10:10:07 2020 -0500
@@ -9,6 +9,7 @@
     src: "{{prometheus_client_rpi_src}}"
     remote_src: yes
     dest: "/tmp/"
+  notify: restart rpi_exporter
 
 - name: install systemd service for rpi-exporter
   become: yes
@@ -16,13 +17,17 @@
     src: "/tmp/{{prometheus_client_rpi_dest}}/rpi_exporter.service"
     remote_src: yes
     dest: "/lib/systemd/system/rpi_exporter.service"
+  notify: restart rpi_exporter
 
 - name: disable GPU temp scraping
   become: yes
   lineinfile:
     path: "/lib/systemd/system/rpi_exporter.service"
     regexp: "^ExecStart=/usr/local/bin/rpi_exporter"
-    line: "ExecStart=/usr/local/bin/rpi_exporter --collector.gpu=false"
+    line: "ExecStart=/usr/local/bin/rpi_exporter --no-collector.gpu"
+  when: not prometheus_client_rpi_collect_gpu_temp
+  notify: restart rpi_exporter
+
 
 - name: install rpi-exporter binary
   become: yes
@@ -31,6 +36,7 @@
     remote_src: yes
     dest: "/usr/local/bin/rpi_exporter"
     mode: "0755"
+  notify: restart rpi_exporter
 
 - name: ensure systemd service is started
   become: yes