map coop-cloud labels

config.alloy.tmpl

@@ -52,7 +52,32 @@ prometheus.scrape "default" {
     prometheus.exporter.cadvisor.docker.targets,
   )
 
+  forward_to = [prometheus.relabel.container_meta.receiver]
+}
+
+prometheus.relabel "container_meta" {
   forward_to = [prometheus.remote_write.prometheus.receiver]
+
+  // remove sha tail: nginx:1.31.1@sha256:608a... -> nginx:1.31.1
+  rule {
+    source_labels = ["image"]
+    regex         = "([^@]+)@sha256:.*"
+    target_label  = "image"
+    replacement   = "$1"
+  }
+  // split image in name and tag
+  rule {
+    source_labels = ["image"]
+    regex         = "(.+):[^:/]+"
+    target_label  = "image_name"
+    replacement   = "$1"
+  }
+  rule {
+    source_labels = ["image"]
+    regex         = ".+:([^:/]+)"
+    target_label  = "image_tag"
+    replacement   = "$1"
+  }
 }
 
 prometheus.remote_write "prometheus" {
@@ -109,6 +134,11 @@ discovery.relabel "metrics" {
     action        = "keep"
   }
 
+  rule {
+  action = "labelmap"
+  regex  = "__meta_dockerswarm_container_label_coop_cloud_(.+)"
+  }
+
   // default to port 80 when prometheus.io/port isn't set
   rule {
     source_labels = ["__meta_dockerswarm_service_label_prometheus_io_port"]
@@ -275,6 +305,10 @@ discovery.relabel "docker" {
     source_labels = ["__meta_docker_container_log_stream"]
     target_label  = "stream"
   }
+  rule {
+  action = "labelmap"
+  regex  = "__meta_docker_container_label_coop_cloud_(.+)"
+  }
 }
 
 loki.source.docker "docker" {
@@ -290,7 +324,35 @@ loki.source.docker "docker" {
 loki.source.journal "journal" {
   path = "/rootfs/var/log/journal"
   labels = { job = "{{ env "DOMAIN" }}" }
+  relabel_rules = loki.relabel.journal.rules
+  forward_to = [loki.process.journal.receiver]
+}
+
+loki.relabel "journal" {
+  forward_to = []
+
+  rule {
+    source_labels = ["__journal__systemd_unit"]
+    target_label  = "unit"
+  }
+  rule {
+    source_labels = ["__journal_syslog_identifier"]
+    target_label  = "ident"
+  }
+  rule {
+    source_labels = ["__journal_priority_keyword"]
+    target_label  = "priority"
+  }
+}
+
+// drop network db stats (15-20% of kernel logs)
+loki.process "journal" {
   forward_to = [loki.write.loki.receiver]
+
+  stage.drop {
+    expression          = ".*NetworkDB stats.*"
+    drop_counter_reason = "networkdb_stats"
+  }
 }
 {{ end }}