Merge pull request #225 from reef-technologies/alloy

Migrate from promtail to alloy

Author: olzhasar-reef

features.md

@@ -70,7 +70,7 @@
 - [Sentry](https://sentry.io) error tracking preconfigured
 - Grafana for metrics and log aggregation (Grafana Loki)
   - Prometheus for data collection
-  - Grafana Loki for log aggregation with Promtail for log shipping
+  - Grafana Loki for log aggregation with Alloy for log shipping
   - Generic host dashboard section optimized for both VM and physical machines
   - [Integration of framework allowing easy addition of new application-level metrics](https://github.com/reef-technologies/django-business-metrics)
   - nginx-level dashboard section for http/ws statistics

{{cookiecutter.repostory_name}}/alloy/config.alloy

@@ -0,0 +1,36 @@
+discovery.docker "containerlogs" {
+	host             = "unix:///var/run/docker.sock"
+}
+
+discovery.relabel "containerlogs" {
+	targets = []
+
+	rule {
+		source_labels = ["__meta_docker_container_name"]
+		regex         = "/(.*)"
+		target_label  = "container"
+	}
+
+	rule {
+		source_labels = ["__meta_docker_container_log_stream"]
+		target_label  = "logstream"
+	}
+}
+
+loki.source.docker "containerlogs" {
+	host             = "unix:///var/run/docker.sock"
+	targets          = discovery.docker.containerlogs.targets
+	forward_to       = [loki.write.default.receiver]
+	relabel_rules    = discovery.relabel.containerlogs.rules
+}
+
+loki.write "default" {
+	endpoint {
+		url = sys.env("LOKI_URL") + "/loki/api/v1/push"
+
+		basic_auth {
+			username = sys.env("LOKI_USER")
+			password = sys.env("LOKI_PASSWORD")
+		}
+	}
+}

{{cookiecutter.repostory_name}}/envs/prod/docker-compose.yml

@@ -238,23 +238,21 @@ services:
   {% endif %}
 
   {% if cookiecutter.log_aggregating == 'y' %}
-  promtail:
-    image: grafana/promtail:2.9.2
+  alloy:
+    image: grafana/alloy:v1.8.3
     restart: unless-stopped
     environment:
       - LOKI_URL=${LOKI_URL}
-      - LOKI_REFRESH_INTERVAL=${LOKI_REFRESH_INTERVAL}
       - LOKI_USER=${LOKI_USER}
       - LOKI_PASSWORD=${LOKI_PASSWORD}
-      - LOKI_CLIENT=${LOKI_CLIENT}
-      - LOKI_CLIENT_SERVER_GROUP=${LOKI_CLIENT_SERVER_GROUP}
     volumes:
-      - ./promtail:/etc/promtail
+      - ./alloy:/etc/alloy
       - /var/run/docker.sock:/var/run/docker.sock:ro
-      - promtail-data:/var/lib/promtail
+      - alloy-data:/var/lib/alloy
     command:
-      - -config.file=/etc/promtail/config.yml
-      - -config.expand-env=true
+      - run
+      - --storage.path=/var/lib/alloy/data
+      - /etc/alloy/config.alloy
     logging:
       <<: *logging
   {% endif %}
@@ -286,4 +284,4 @@ volumes:
   backups:
   gunicorn-socket:
   nodeexporter_collectors:
-  promtail-data:
+  alloy-data: