(WIP) monitoring: attempt at container alerts

.idea/jsonSchemas.xml

@@ -116,6 +116,28 @@
                   <Item>
                     <option name="path" value="roles/alpina/collections/services/monitoring/templates/prometheus_config/prometheus.yml.j2" />
                   </Item>
+                  <Item>
+                    <option name="path" value="roles/alpina/templates/services/monitoring/prometheus_config/prometheus.yml.j2" />
+                  </Item>
+                </list>
+              </option>
+            </SchemaInfo>
+          </value>
+        </entry>
+        <entry key="prometheus.rules.json">
+          <value>
+            <SchemaInfo>
+              <option name="name" value="prometheus.rules.json" />
+              <option name="relativePathToSchema" value="https://json.schemastore.org/prometheus.rules.json" />
+              <option name="applicationDefined" value="true" />
+              <option name="patterns">
+                <list>
+                  <Item>
+                    <option name="path" value="roles/alpina/templates/services/monitoring/prometheus_config/container-alerts.yml" />
+                  </Item>
+                  <Item>
+                    <option name="path" value="roles/alpina/templates/services/monitoring/prometheus_config/container.alerts.yml" />
+                  </Item>
                 </list>
               </option>
             </SchemaInfo>

roles/alpina/templates/services/monitoring/docker-compose.yml.j2

@@ -60,12 +60,15 @@ services:
   prometheus:
     image: prom/prometheus:latest
     container_name: prometheus
+    labels:
+      - {{ helpers.traefik_labels('prom', port='9090') | indent(6) }}
     restart: unless-stopped
     # Needed to make config files readable (not anymore, TODO: remove)
     user: "{{ remote_uid }}"
     command:
       - --config.file=/etc/prometheus/prometheus.yml
       - --storage.tsdb.retention.time=30d
+      - --web.external-url=https://prom.{{ domain }}/
     volumes:
       - ./prometheus_config:/etc/prometheus:ro
       - {{ base_volume_path }}/monitoring/prometheus_configs:/etc/prometheus/extra:ro
@@ -74,12 +77,15 @@ services:
   alertmanager:
     image: prom/alertmanager:latest
     container_name: alertmanager
+    labels:
+      - {{ helpers.traefik_labels('alert', port='9093') | indent(6) }}
     restart: unless-stopped
     command:
       - --config.file=/etc/alertmanager/alertmanager.yml
+      - --web.external-url=https://alert.{{ domain }}/
     volumes:
       - ./alertmanager_config:/etc/alertmanager:ro
-    # TODO: add volume for alertmanager data
+      - {{ base_volume_path }}/monitoring/alertmanager:/alertmanager
 
   node-exporter:
     image: prom/node-exporter:latest

roles/alpina/templates/services/monitoring/grafana_config/dashboards/containers.dashboard.py

@@ -56,12 +56,16 @@ dashboard = Dashboard(
     timezone='browser',
     panels=[
         TimeSeries(
+            id=1,
             title='Container Memory Usage',
             unit=BYTES_IEC,
             gridPos=GridPos(h=8, w=12, x=0, y=0),
             lineWidth=2,
             fillOpacity=10,
             showPoints='never',
+            stacking={'mode': 'normal'},
+            tooltipMode='all',
+            tooltipSort='desc',
             targets=[
                 Target(
                     datasource=prom_datasource,
@@ -72,6 +76,7 @@ dashboard = Dashboard(
             ],
         ),
         TimeSeries(
+            id=2,
             title='Container CPU Usage',
             unit=SECONDS,
             gridPos=GridPos(h=8, w=12, x=12, y=0),
@@ -88,28 +93,32 @@ dashboard = Dashboard(
             ],
         ),
         TimeSeries(
+            id=3,
             title='Container Network Traffic',
             unit=BYTES_SEC_IEC,
             gridPos=GridPos(h=8, w=12, x=0, y=8),
             lineWidth=2,
             fillOpacity=10,
             showPoints='never',
+            tooltipMode='all',
+            tooltipSort='desc',
             targets=[
                 Target(
                     datasource=prom_datasource,
-                    expr='sum by (name) (rate(container_network_receive_bytes_total{name=~"$container_name", container_label_com_docker_compose_project=~"$compose_project"}[$__rate_interval]))',
+                    expr='max by (name) (rate(container_network_receive_bytes_total{name=~"$container_name", container_label_com_docker_compose_project=~"$compose_project"}[$__rate_interval]))',
-                    legendFormat="recv {{ name }}",
+                    legendFormat="rx {{ name }}",
                     refId='A',
                 ),
                 Target(
                     datasource=prom_datasource,
-                    expr='-sum by (name) (rate(container_network_transmit_bytes_total{name=~"$container_name", container_label_com_docker_compose_project=~"$compose_project"}[$__rate_interval]))',
+                    expr='-max by (name) (rate(container_network_transmit_bytes_total{name=~"$container_name", container_label_com_docker_compose_project=~"$compose_project"}[$__rate_interval]))',
-                    legendFormat="trans {{ name }}",
+                    legendFormat="tx {{ name }}",
                     refId='B',
                 ),
             ],
         ),
         Logs(
+            id=4,
             title='',
             gridPos=GridPos(h=8, w=12, x=12, y=8),
             showLabels=True,

roles/alpina/templates/services/monitoring/loki_config/loki-config.yaml.j2

@@ -20,10 +20,17 @@ schema_config:
     - from: 2020-10-24
       store: boltdb-shipper
       object_store: filesystem
-      schema: v11
+      schema: v12
       index:
         prefix: index_
         period: 24h
+    - from: 2024-10-18
+      index:
+        period: 24h
+        prefix: index_
+      object_store: filesystem
+      schema: v13
+      store: tsdb
 
 # TODO: Figure this out
 ruler:

roles/alpina/templates/services/monitoring/prometheus_config/container.alerts.yml

@@ -0,0 +1,23 @@
+groups:
+  - name: qbit-low-traffic
+    interval: 1m
+    rules:
+      - alert: QbitLowTraffic
+        expr: |
+          rate(container_network_transmit_bytes_total{name=~"gluetun"}[1m]) < 1024
+        for: 2m
+        labels:
+          severity: warning
+        annotations:
+          title: 'Low traffic on qBit'
+          description: |
+            The traffic on qBittorrent is lower than 1KiB/s for 2 minutes.
+
+            Last value was x bytes/s.
+
+            [Grafana Dashboard](https://grafana.{{ domain }}/d/containers?orgId=1)
+            [View in Grafana](https://grafana.{{ domain }}/d/containers?orgId=1&viewPanel=3)
+
+          __dashboard__uid: 'containers'
+          __orgId__: 1
+          __panelId__: 3

roles/alpina/templates/services/monitoring/prometheus_config/prometheus.yml.j2

@@ -43,7 +43,7 @@ scrape_configs:
           - 'demo.promlabs.com:10002'
 
 rule_files:
-  - "/etc/prometheus/demo-alerts.yml"
+  - "/etc/prometheus/container.alerts.yml"
   - "/etc/prometheus/extra/rules/*.yml"
   - "/etc/prometheus/extra/rules/*.json"