chore: sync homelab ops, identity, and monitoring docs

monitoring/promtail-config.yml

@@ -0,0 +1,27 @@
+server:
+  http_listen_port: 9080
+  grpc_listen_port: 0
+
+positions:
+  filename: /var/lib/promtail/positions.yml
+
+clients:
+  - url: http://loki:3100/loki/api/v1/push
+
+scrape_configs:
+  - job_name: docker
+    docker_sd_configs:
+      - host: unix:///var/run/docker.sock
+        refresh_interval: 15s
+    relabel_configs:
+      - source_labels: ['__meta_docker_container_name']
+        regex: '/(.*)'
+        target_label: container
+      - source_labels: ['__meta_docker_container_label_com_docker_compose_project']
+        target_label: compose_project
+      - source_labels: ['__meta_docker_container_label_com_docker_compose_service']
+        target_label: compose_service
+      - source_labels: ['__meta_docker_container_log_stream']
+        target_label: stream
+      - replacement: plausible-deniability
+        target_label: host