lxc_hosts as separate category

templates/prometheus.yml.j2

@@ -33,7 +33,23 @@ scrape_configs:
 
     # metrics_path defaults to '/metrics'
     # scheme defaults to 'http'.
-
+{% if groups['lxc_host'] is defined %}
+  - job_name: lxc_host
+    scheme: https
+    tls_config:
+        # Prometheus will check that the node_exporter presents a certificate
+        # signed by this ca.
+        ca_file: '/etc/ssl/prometheus_client/root.ca.crt'
+        # The cert and key are presented to node_exporter to authenticate
+        # Prometheus as a client.
+        cert_file: '/etc/ssl/prometheus_client/{{fqdn}}.crt'
+        key_file: '/etc/ssl/prometheus_client/{{fqdn}}.key'
+    static_configs:
+      - targets:
+{%   for host in groups['lxc_host'] %}
+          - '{{host}}:9100'
+{%   endfor %}
+{% endif %}
   - job_name: dns_scrape
     scheme: https
     tls_config: