monitoring setup

monitoring/config.alloy

@@ -0,0 +1,66 @@
+// ============================================================
+// Docker log collection -> Grafana Cloud Loki
+// ============================================================
+
+discovery.docker "containers" {
+  host = "unix:///var/run/docker.sock"
+}
+
+discovery.relabel "containers" {
+  targets = discovery.docker.containers.targets
+
+  rule {
+    source_labels = ["__meta_docker_container_name"]
+    target_label  = "container"
+  }
+
+  rule {
+    source_labels = ["__meta_docker_container_name"]
+    target_label  = "job"
+  }
+}
+
+loki.source.docker "containers" {
+  host       = "unix:///var/run/docker.sock"
+  targets    = discovery.relabel.containers.output
+  forward_to = [loki.write.grafana_cloud.receiver]
+}
+
+loki.write "grafana_cloud" {
+  endpoint {
+    url = env("GRAFANA_CLOUD_LOKI_URL")
+
+    basic_auth {
+      username = env("GRAFANA_CLOUD_LOKI_USER")
+      password = env("GRAFANA_CLOUD_API_KEY")
+    }
+  }
+}
+
+// ============================================================
+// Node exporter metrics -> Grafana Cloud Prometheus
+// ============================================================
+
+prometheus.exporter.unix "node" {
+  procfs_path = "/host/proc"
+  sysfs_path  = "/host/sys"
+  rootfs_path = "/host/root"
+}
+
+prometheus.scrape "node" {
+  targets    = prometheus.exporter.unix.node.targets
+  forward_to = [prometheus.remote_write.grafana_cloud.receiver]
+
+  scrape_interval = "60s"
+}
+
+prometheus.remote_write "grafana_cloud" {
+  endpoint {
+    url = env("GRAFANA_CLOUD_PROMETHEUS_URL")
+
+    basic_auth {
+      username = env("GRAFANA_CLOUD_PROMETHEUS_USER")
+      password = env("GRAFANA_CLOUD_API_KEY")
+    }
+  }
+}