feat(podman_prometheus): add hostname labels to targets

roles/podman_prometheus/templates/home/podman/config/containers/systemd/prometheus-ts.container

@@ -0,0 +1,16 @@
+[Container]
+ContainerName=prometheus-ts
+Image=docker.io/tailscale/tailscale:latest
+HostName=prometheus
+Environment=TS_AUTH_KEY={{ podman_prometheus_ts_auth_key }}
+Environment=TS_STATE_DIR=/var/lib/tailscale
+Environment=TS_USERSPACE=true
+Environment=TS_EXTRA_ARGS="--login-server https://hs.sr2.uk/"
+Network=monitor.network
+
+[Service]
+Restart=on-failure
+
+[Install]
+WantedBy=default.target
+

roles/podman_prometheus/templates/home/podman/prometheus.yml

@@ -13,26 +13,18 @@ scrape_configs:
       - targets: ['alertmanager:9093']
   - job_name: 'node'
     scrape_interval: 5s
-    scheme: https
-    basic_auth:
-      username: metrics
-      password: "{{ node_exporter_password }}"
-    tls_config:
-      insecure_skip_verify: true
+    scheme: http
     static_configs:
+      - targets: ['{{ node_exporter_tailscale_ipv4.stdout }}:9100']
+        labels:
+          instance: "{{ inventory_hostname }}"
+          hostname: "{{ inventory_hostname }}"
+{% for host in (groups['ipaservers'] + groups['keycloak'] + groups['radius'] + groups['generic']) %}
       - targets:
-        - 'host.containers.internal:9100'
-{% for host in groups['ipaservers'] %}
-        - '{{ host }}:9100'
-{% endfor %}
-{% for host in groups['keycloak'] %}
-        - '{{ host }}:9100'
-{% endfor %}
-{% for host in groups['radius'] %}
-        - '{{ host }}:9100'
-{% endfor %}
-{% for host in groups['generic'] %}
-        - '{{ host }}:9100'
+        - "{{ hostvars[host]['node_exporter_tailscale_ipv4'].stdout }}:9100"
+        labels:
+          instance: "{{ host }}"
+          hostname: "{{ host }}"
 {% endfor %}
     file_sd_configs:
       - files: