add node-exporter

nomad-job/node-exporter.nomad

@@ -0,0 +1,68 @@
+job "node-exporter" {
+  datacenters = ["homelab","hetzner"]
+  type = "system"
+  meta {
+    forcedeploy = "0"
+  }
+
+  group "node-exporter"{
+    network {
+      port "http" {
+      }
+    }
+    service {
+      name = "node-exporter"
+      port = "http"
+      check {
+        type = "http"
+        port = "http"
+        path = "/"
+        interval = "10s"
+        timeout = "2s"
+        success_before_passing   = "3"
+        failures_before_critical = "3"
+        check_restart {
+          limit = 3
+          grace = "60s"
+        }
+      }
+    }
+
+    task "node-exporter" {
+      driver = "docker"
+      config {
+        image = "prom/node-exporter"
+        ports = ["http"]
+        args = [
+          "--web.listen-address=:${NOMAD_PORT_http}",
+          "--path.procfs=/host/proc",
+          "--path.sysfs=/host/sys",
+          "--collector.filesystem.ignored-mount-points",
+          "^/(sys|proc|dev|host|etc|rootfs/var/lib/docker/containers|rootfs/var/lib/docker/overlay2|rootfs/run/docker/netns|rootfs/var/lib/docker/aufs)($$|/)"
+
+        ]
+
+        mount {
+          type     = "bind"
+          target   = "/host/proc"
+          source   = "/proc"
+          readonly = true
+        }
+
+        mount {
+          type     = "bind"
+          target   = "/host/sys"
+          source   = "/sys"
+          readonly = true
+        }
+
+      }
+
+      resources {
+        cpu = 20
+        memory = 16
+      }
+    }
+
+  }
+}

nomad-job/prometheus.nomad

@@ -73,6 +73,11 @@ scrape_configs:
     relabel_configs:
     - source_labels: [__meta_consul_node]
       target_label: machine
+  - job_name: 'nodeexp'
+    static_configs:
+    consul_sd_configs:
+    - server: 'consul.service.consul:8500'
+      services: ['node-exporter']