prometheus: basic proxmox monitoring

group_vars/all/vars.yml

@@ -96,9 +96,16 @@ nextcloud_dbname: owncloud
 nextcloud_dbuser: owncloud
 nextcloud_dbpass: "{{ vault_owncloud_dbpass }}"
 
+prometheus_pve_user: prometheus@pve
+prometheus_pve_pass: "{{ vault_prometheus_pve_pass }}"
+
 prosody_admin: moepman@jabber.binary-kitchen.de
 prosody_domain: jabber.binary-kitchen.de
 
+pve_targets:
+- wurst.binary.kitchen
+- salat.binary.kitchen
+
 radius_secret: "{{ vault_radius_secret }}"
 
 rocketchat_domain: chat.binary-kitchen.de

group_vars/all/vault.yml

@@ -1,38 +1,40 @@
 $ANSIBLE_VAULT;1.1;AES256
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roles/prometheus/files/prometheus-pve-exporter.service

@@ -0,0 +1,10 @@
+Description=Prometheus exporter for Proxmox VE
+Documentation=https://github.com/znerol/prometheus-pve-exporter
+
+[Service]
+Restart=always
+User=prometheus
+ExecStart=/opt/prometheus-pve-exporter/bin/pve_exporter /etc/prometheus/pve.yml
+
+[Install]
+WantedBy=multi-user.target

roles/prometheus/handlers/main.yml

@@ -1,4 +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

roles/prometheus/tasks/main.yml

@@ -7,9 +7,35 @@
 - name: Install prometheus
   apt: name=prometheus
 
+- name: Install dependencies
+  apt:
+    name:
+    - python-setuptools
+    - python3-setuptools
+    - virtualenv
+
+- name: Install prometheus-pve-exporter
+  pip:
+    name: git+https://github.com/znerol/prometheus-pve-exporter
+    virtualenv: /opt/prometheus-pve-exporter
+    virtualenv_python: python3
+
+- name: Systemd unit for prometheus-pve-exporter
+  copy: src=prometheus-pve-exporter.service dest=/etc/systemd/system/prometheus-pve-exporter.service
+  notify:
+  - Reload systemd
+  - Restart prometheus-pve-exporter
+
 - name: Configure prometheus
   template: src=prometheus.yml.j2 dest=/etc/prometheus/prometheus.yml
   notify: Restart prometheus
 
+- name: Configure prometheus-pve-exporter
+  template: src=pve.yml.j2 dest=/etc/prometheus/pve.yml
+  notify: Restart prometheus-pve-exporter
+
 - name: Enable prometheus
   service: name=prometheus state=started enabled=yes
+
+- name: Enable prometheus-pve-exporter
+  service: name=prometheus-pve-exporter state=started enabled=yes

roles/prometheus/templates/prometheus.yml.j2

@@ -33,3 +33,21 @@ scrape_configs:
         - {{ target }}
 {% endfor %}
 {% endif %}
+{% if pve_targets is defined %}
+  - job_name: pve
+    static_configs:
+      - targets:
+{% for target in pve_targets %}
+        - {{ target }}
+{% endfor %}
+    metrics_path: /pve
+    params:
+      module: [default]
+    relabel_configs:
+      - source_labels: [__address__]
+        target_label: __param_target
+      - source_labels: [__param_target]
+        target_label: instance
+      - target_label: __address__
+        replacement: 127.0.0.1:9221
+{% endif %}

roles/prometheus/templates/pve.yml.j2

@@ -0,0 +1,4 @@
+default:
+  user: {{ prometheus_pve_user }}
+  password: {{ prometheus_pve_pass }}
+  verify_ssl: false