prometheus: cleanup

group_vars/all/vars.yml

@@ -44,12 +44,12 @@ ntp_servers:
 - 2.de.pool.ntp.org
 - 3.de.pool.ntp.org
 
+prometheus_pve_user: prometheus@pve
+prometheus_pve_pass: "{{ vault_prometheus_pve_pass }}"
+
 pve_targets:
 - pve01.ffrgb
 - pve02.ffrgb
 
-prometheus_pve_user: prometheus@pve
-prometheus_pve_pass: "{{ vault_prometheus_pve_pass }}"
-
 site: ffrgb
 site_domain: regensburg.freifunk.net

roles/prometheus/handlers/main.yml

@@ -1,10 +1,10 @@
 ---
 
+- name: Reload systemd
+  command: systemctl daemon-reload
+
 - name: Restart prometheus
   service: name=prometheus state=restarted
 
 - name: Restart prometheus-pve-exporter
   service: name=prometheus-pve-exporter state=restarted
-
-- name: Reload systemd
-  command: systemctl daemon-reload

roles/prometheus/templates/prometheus.yml.j2

@@ -25,18 +25,23 @@ rule_files:
 # A scrape configuration containing exactly one endpoint to scrape:
 # Here it's Prometheus itself.
 scrape_configs:
+{% if node_targets is defined %}
   - job_name: node
     static_configs:
       - targets:
 {% for target in node_targets %}
         - {{ target }}
 {% endfor %}
+{% endif %}
+{% if fastd_targets is defined %}
   - job_name: fastd
     static_configs:
       - targets:
 {% for target in fastd_targets %}
         - {{ target }}
 {% endfor %}
+{% endif %}
+{% if pve_targets is defined %}
   - job_name: pve
     static_configs:
       - targets:
@@ -53,3 +58,4 @@ scrape_configs:
         target_label: instance
       - target_label: __address__
         replacement: 127.0.0.1:9221
+{% endif %}