fix: logging is opt-in

.env.sample

@@ -53,10 +53,6 @@ SECRET_BASIC_AUTH_VERSION=v1
 # Not needed if you just want to read local log files — use SYSLOG_FILES instead.
 # SYSLOG=1
 # COMPOSE_FILE="$COMPOSE_FILE:compose.syslog.yml"
-#
-# Scrape Docker-Events via official docker-cli image using docker socket
-# COMPOSE_FILE="$COMPOSE_FILE:compose.docker-events.yml"
-
 
 # Monitoring Server
 #
@@ -130,3 +126,10 @@ SECRET_BASIC_AUTH_VERSION=v1
 
 # Node memory usage alert will trigger when memory usage is above the given number in percent
 #ALERT_NODE_MEMORY_USAGE=85
+
+# Tell Traefik to keep access logs (could be very verbose). See Access
+# logs on Traefik recipe.
+#ALLOY_ACCESS_LOGS=true
+#PROMETHEUS_ACCESS_LOGS=true
+#LOKI_ACCESS_LOGS=true
+#GRAFANA_ACCESS_LOGS=true

README.md

@@ -54,14 +54,6 @@ This is what a gathering host pushes into. It also runs its own Alloy, so it mon
 
 ## Additional features
 
-### Scrape docker events
-
-Just uncomment the following line in your .env to collect docker events using
-the official docker-cli image and the docker socket:
-```
-COMPOSE_FILE="$COMPOSE_FILE:compose.docker-events.yml"
-```
-
 ### Discovering metrics from other apps
 
 Alloy auto-discovers and scrapes other Docker Swarm services running on the same host, on the `proxy` network, that opt in via labels. No manual scrape config needed. On the app's `compose.yml`:

abra.sh

@@ -10,7 +10,7 @@ export PROMETHEUS_YML_VERSION=v2
 export MATRIX_ALERTMANAGER_CONFIG_VERSION=v1
 export MATRIX_ALERTMANAGER_ENTRYPOINT_VERSION=v1
 export GF_ALERTS_NODE_VERSION=v3
-export CONFIG_ALLOY_VERSION=v3
+export CONFIG_ALLOY_VERSION=v2
 
 # migrates secrets from old names to new names by reading values from the
 # running containers on the server and re-inserting them under the new names.

compose.alloy-webui.yml

@@ -14,3 +14,4 @@ services:
         - "traefik.http.routers.${STACK_NAME}-alloy.tls=true"
         - "traefik.http.routers.${STACK_NAME}-alloy.tls.certresolver=${LETS_ENCRYPT_ENV}"
         - "traefik.http.routers.${STACK_NAME}-alloy.middlewares=basicauth@file"
+        - "traefik.http.routers.${STACK_NAME}-alloy.observability.accesslogs=${ALLOY_ACCESS_LOGS:-false}"

compose.docker-events.yml

@@ -1,20 +0,0 @@
-version: "3.8"
-services:
-  docker-events:
-    image: docker:29.8.1-cli
-    command: >
-      docker events
-      --format '{{json .}}'
-      --filter type=container
-      --filter event=start
-      --filter event=die
-      --filter event=kill
-      --filter event=oom
-      --filter event=restart
-      --filter event=stop
-      --filter event=health_status
-    volumes:
-      - /var/run/docker.sock:/var/run/docker.sock:ro
-    deploy:
-      restart_policy:
-        condition: on-failure

compose.grafana.yml

@@ -43,6 +43,7 @@ services:
         - "traefik.http.routers.${STACK_NAME}-grafana.entrypoints=web-secure"
         - "traefik.http.routers.${STACK_NAME}-grafana.tls=true"
         - "traefik.http.routers.${STACK_NAME}-grafana.tls.certresolver=${LETS_ENCRYPT_ENV}"
+        - "traefik.http.routers.${STACK_NAME}-grafana.observability.accesslogs=${GRAFANA_ACCESS_LOGS:-false}"
     healthcheck:
       test: "wget -q http://localhost:3000/healthz -O/dev/null"
       interval: 5s

compose.loki.yml

@@ -34,6 +34,7 @@ services:
         - "traefik.http.routers.${STACK_NAME}-loki.tls=true"
         - "traefik.http.routers.${STACK_NAME}-loki.tls.certresolver=${LETS_ENCRYPT_ENV}"
         - "traefik.http.routers.${STACK_NAME}-loki.middlewares=basicauth@file"
+        - "traefik.http.routers.${STACK_NAME}-loki.observability.accesslogs=${LOKI_ACCESS_LOGS:-false}"
 
 
 configs:

compose.prometheus.yml

@@ -38,6 +38,7 @@ services:
         - "traefik.http.routers.${STACK_NAME}-prometheus.tls=true"
         - "traefik.http.routers.${STACK_NAME}-prometheus.tls.certresolver=${LETS_ENCRYPT_ENV}"
         - "traefik.http.routers.${STACK_NAME}-prometheus.middlewares=basicauth@file"
+        - "traefik.http.routers.${STACK_NAME}-prometheus.observability.accesslogs=${PROMETHEUS_ACCESS_LOGS:-false}"
 
 configs:
   prometheus_yml:

compose.yml

@@ -53,7 +53,7 @@ services:
         condition: on-failure
       labels:
         - "backupbot.backup=${ENABLE_BACKUPS:-true}"
-        - "coop-cloud.${STACK_NAME}.version=2.2.0+v1.18.1"
+        - "coop-cloud.${STACK_NAME}.version=2.0.0+v1.18.1"
 configs:
   config_alloy:
     template_driver: golang

config.alloy.tmpl

@@ -52,32 +52,7 @@ 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" {
@@ -315,35 +290,7 @@ 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 }}
 

release/2.1.0+v1.18.1

@@ -1 +0,0 @@
-alloy: split image label in "image_name" and "image_tag", relabel journald logs and drop NetworkDB stats

release/2.2.0+v1.18.1

@@ -1 +0,0 @@
-allow scraping of docker events via new compose.docker-events.yml