(WIP) monitoring: attempt at container alerts

.idea/alpina.iml

@@ -4,7 +4,7 @@
     <content url="file://$MODULE_DIR$">
       <excludeFolder url="file://$MODULE_DIR$/venv" />
     </content>
-    <orderEntry type="inheritedJdk" />
+    <orderEntry type="jdk" jdkName="Poetry (alpina) (4)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
   <component name="PyDocumentationSettings">

.idea/jsonSchemas.xml

@@ -39,22 +39,6 @@
             </SchemaInfo>
           </value>
         </entry>
-        <entry key="Loki">
-          <value>
-            <SchemaInfo>
-              <option name="name" value="Loki" />
-              <option name="relativePathToSchema" value="https://json.schemastore.org/loki.json" />
-              <option name="applicationDefined" value="true" />
-              <option name="patterns">
-                <list>
-                  <Item>
-                    <option name="path" value="roles/alpina/templates/services/monitoring/loki_config/loki-config.yaml.j2" />
-                  </Item>
-                </list>
-              </option>
-            </SchemaInfo>
-          </value>
-        </entry>
         <entry key="Traefik v2">
           <value>
             <SchemaInfo>
@@ -140,6 +124,25 @@
             </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>
+          </value>
+        </entry>
       </map>
     </state>
   </component>

.idea/misc.xml

@@ -3,5 +3,5 @@
   <component name="Black">
     <option name="sdkName" value="Poetry (alpina) (2)" />
   </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Poetry (alpina)" project-jdk-type="Python SDK" />
+  <component name="ProjectRootManager" version="2" project-jdk-name="Poetry (alpina) (4)" project-jdk-type="Python SDK" />
 </project>

README.md

@@ -8,22 +8,6 @@ running on top of TrueNAS SCALE, separating all the docker stuff from the applia
 
 # Notes
 
-## Monitoring
-The monitoring stack is set up to monitor all the containers and the host.
-
-This is a work in progress, Grafana is set up with grafanalib, a Python library that generates Grafana dashboards.
-The dashboards are generated from Python scripts in 
-[grafana_config/dashboards](roles/alpina/templates/services/monitoring/grafana_config/dashboards).
-
-This requires a custom grafana image, which is built from the 
-[Dockerfile](roles/alpina/templates/services/monitoring/Dockerfile).
-
-This also means it has to be manually rebuilt whenever the dashboards are updated.
-From the services/monitoring directory, run:
-```bash
-docker compose up -d --build --force-recreate grafana
-```
-
 ## IPv6
 The current configuration is designed to work with IPv6. 
 However, because of how (not properly) I'm doing the subnetting 

group_vars/alpina/vars.yml

@@ -24,6 +24,8 @@ minio_password: "{{ vault_minio_password }}"
 influxdb_admin_password: "{{ vault_influxdb_admin_password }}"
 influxdb_admin_token: "{{ vault_influxdb_admin_token }}"
 
+alertmanager_discord_webhook: "{{ vault_alertmanager_discord_webhook }}"
+
 # Traefik
 acme_email: "{{ vault_acme_email }}"
 cloudflare_api_token: "{{ vault_cloudflare_api_token }}"

group_vars/alpina/vault.yml

@@ -1,88 +1,96 @@
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+36333434303538326135346539313734393939353163316666366438613133333464623732666438
+663934323030303937623038343662646163

roles/alpina/templates/services/monitoring/.env.alertmanager.j2

@@ -0,0 +1 @@
+DISCORD_WEBHOOK={{ alertmanager_discord_webhook }}

roles/alpina/templates/services/monitoring/Dockerfile

@@ -4,10 +4,6 @@ RUN pip install grafanalib
 
 COPY ./grafana_config/dashboards /dashboards
 
-# Required for grafanalib to find the shared python files like common.py
-# https://github.com/weaveworks/grafanalib/issues/58
-ENV PYTHONPATH=/dashboards
-
 RUN generate-dashboards /dashboards/*.dashboard.py
 
 FROM grafana/grafana:latest

roles/alpina/templates/services/monitoring/alertmanager_config/alertmanager.yml.j2

@@ -0,0 +1,68 @@
+# The root route on which each incoming alert enters.
+route:
+  group_by: ["alertname", "job"]
+  group_wait: 20s
+  group_interval: 5m
+  repeat_interval: 3h
+  receiver: discord_webhook
+
+receivers:
+  - name: "discord_webhook"
+    discord_configs:
+      - webhook_url: "{{ alertmanager_discord_webhook }}"
+{#        - send_resolved: true#}
+{#            username: 'Alertmanager'#}
+{#            webhook_configs:#}
+{#            - send_resolved: true#}
+{#                url: '{{ alertmanager_discord_webhook }}'#}
+{#                username: 'Alertmanager'#}
+{#                icon_url: 'https://prometheus.io/assets/icon.png'#}
+{#                icon_emoji: ':alert:'#}
+{#                send_resolved: true#}
+{#                text: "{{ .CommonAnnotations.summary }}"#}
+{#                title: "{{ .CommonLabels.alertname }}"#}
+{#                color: '{{ if eq .Status "firing" }}#FF0000{{ else }}#00FF00{{ end }}'#}
+{#                footer: '{{ .CommonLabels.monitor }}'#}
+{#                footer_icon: 'https://prometheus.io/assets/icon.png'#}
+{#                actions:#}
+{#                - type: 'button'#}
+{#                    text: 'Open in Grafana'#}
+{#                    url: '{{ .ExternalURL }}'#}
+{#                    style: 'primary'#}
+{#                    send_resolved: true#}
+{#                    confirm:#}
+{#                    title: 'Are you sure?'#}
+{#                    text: 'This will open Grafana in a new tab.'#}
+{#                    ok_text: 'Yes'#}
+{#                    dismiss_text: 'No'#}
+{#                fields:#}
+{#                - title: 'Description'#}
+{#                    value: "{{ .CommonAnnotations.description }}"#}
+{#                    short: false#}
+{#                - title: 'Details'#}
+{#                    value: "{{ .CommonAnnotations.details }}"#}
+{#                    short: false#}
+{#                - title: 'Severity'#}
+{#                    value: '{{ if eq .Labels.severity "critical" }}Critical{{ else if eq .Labels.severity "warning" }}Warning{{ else }}Info{{ end }}'#}
+{#                    short: true#}
+{#                - title: 'Host'#}
+{#                    value: '{{ .CommonLabels.monitor }}'#}
+{#                    short: true#}
+{#                - title: 'Starts At'#}
+{#                    value: '{{ .StartsAt.Format "2006-01-02 15:04:05" }}'#}
+{#                    short: true#}
+{#                - title: 'Ends At'#}
+{#                    value: '{{ .EndsAt.Format "2006-01-02 15:04:05" }}'#}
+{#                    short: true#}
+{#                - title: 'Runbook'#}
+{#                    value: '{{ .CommonAnnotations.runbook_url }}'#}
+{#                    short: true#}
+{#                - title: 'Dashboard'#}
+{#                    value: '{{ .CommonAnnotations.dashboard_url }}'#}
+{#                    short: true#}
+{#                - title: 'Alerting Rule'#}
+{#                    value: '{{ .CommonLabels.alertname }}'#}
+{#                    short: true#}
+{#                - title: 'Alerting Rule Description'#}
+{#                    value: '{{ .CommonLabels.alertname }}'#}
+{#                    short: true#}

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

@@ -60,17 +60,33 @@ 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
       - {{ base_volume_path }}/monitoring/prometheus:/prometheus
 
+  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
+      - {{ base_volume_path }}/monitoring/alertmanager:/alertmanager
+
   node-exporter:
     image: prom/node-exporter:latest
     container_name: node-exporter
@@ -84,11 +100,6 @@ services:
     image: gcr.io/cadvisor/cadvisor:latest
     container_name: cadvisor
     restart: unless-stopped
-    command:
-      - --docker_only=true
-      - --store_container_labels=false
-      - --whitelisted_container_labels=com.docker.compose.project,com.docker.compose.service
-      - --enable_metrics=cpu,cpuLoad,diskIO,memory,network,oom_event,process
     volumes:
       - /:/rootfs:ro
       - /var/run:/var/run:rw

roles/alpina/templates/services/monitoring/grafana_config/dashboards/alpina.yaml

@@ -3,7 +3,7 @@ apiVersion: 1
 providers:
   - name: "Grafana"
     org_id: 1
-    folder: "Alpina"
+    folder: "Services"
     type: "file"
     options:
       path: "/etc/grafana/provisioning/dashboards"

roles/alpina/templates/services/monitoring/grafana_config/dashboards/common.py

@@ -1,27 +0,0 @@
-from grafanalib.core import Template
-
-# TODO: consider default params for common params like line width, show points, tooltip
-
-PrometheusTemplate = Template(
-    name='datasource',
-    type='datasource',
-    label='Prometheus',
-    query='prometheus',
-)
-
-# TODO: this slightly less (clown emoji), normal Target gave me errors in grafana
-class LokiTarget(object):
-    def __init__(self, loki_datasource, expr, legendFormat, refId):
-        self.loki_datasource = loki_datasource
-        self.expr = expr
-        self.legendFormat = legendFormat
-        self.refId = refId
-
-    def to_json_data(self):
-        return {
-            'datasource': self.loki_datasource,
-            'expr': self.expr,
-            'legendFormat': self.legendFormat,
-            'refId': self.refId,
-            'queryType': 'range',
-        }

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

@@ -5,21 +5,28 @@ from grafanalib.core import (
 )
 from grafanalib.formatunits import BYTES_IEC, SECONDS, BYTES_SEC_IEC
 
-from common import LokiTarget, PrometheusTemplate
+prom_datasource='prometheus'
-
-prom_datasource='${datasource}'
 loki_datasource='loki'
 
+# TODO: this is (clown emoji), normal Target gave me errors in grafana
+class LokiTarget(object):
+    def to_json_data(self):
+        return {
+            'datasource': loki_datasource,
+            'expr': '{compose_project=~"$compose_project", container_name=~"$container_name"} |= `$logs_query`',
+            'legendFormat': '{{ container_name }}',
+            'refId': 'A',
+            'queryType': 'range',
+        }
+
 dashboard = Dashboard(
     title='Containers',
     uid='containers',
     description='Data for compose projects from default Prometheus datasource collected by Cadvisor',
     tags=[
-        'linux',
+        'example'
-        'docker',
     ],
     templating=Templating(list=[
-        PrometheusTemplate,
         Template(
             name='compose_project',
             label='Compose Project',
@@ -37,6 +44,7 @@ dashboard = Dashboard(
             includeAll=True,
             multi=True,
             refresh=REFRESH_ON_TIME_RANGE_CHANGE,
+
         ),
         Template(
             name='logs_query',
@@ -48,6 +56,7 @@ 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),
@@ -67,14 +76,13 @@ dashboard = Dashboard(
             ],
         ),
         TimeSeries(
+            id=2,
             title='Container CPU Usage',
             unit=SECONDS,
             gridPos=GridPos(h=8, w=12, x=12, y=0),
             lineWidth=2,
             fillOpacity=10,
             showPoints='never',
-            tooltipMode='all',
-            tooltipSort='desc',
             targets=[
                 Target(
                     datasource=prom_datasource,
@@ -85,6 +93,7 @@ dashboard = Dashboard(
             ],
         ),
         TimeSeries(
+            id=3,
             title='Container Network Traffic',
             unit=BYTES_SEC_IEC,
             gridPos=GridPos(h=8, w=12, x=0, y=8),
@@ -109,6 +118,7 @@ dashboard = Dashboard(
             ],
         ),
         Logs(
+            id=4,
             title='',
             gridPos=GridPos(h=8, w=12, x=12, y=8),
             showLabels=True,
@@ -117,12 +127,13 @@ dashboard = Dashboard(
             prettifyLogMessage=True,
             dedupStrategy='numbers',
             targets=[
-                LokiTarget(
+                LokiTarget(),
-                    loki_datasource=loki_datasource,
+                # Target(
-                    expr='{compose_project=~"$compose_project", container_name=~"$container_name"} |= `$logs_query`',
+                #     datasource=loki_datasource,
-                    legendFormat='{{ container_name }}',
+                #     expr='{compose_project=~"$compose_project", container_name=~"$container_name"} |= `$logs_query`',
-                    refId='A',
+                #     legendFormat='{{ container_name }}',
-                ),
+                #     refId='A',
+                # ),
             ],
         ),
     ],

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

@@ -0,0 +1,51 @@
+from grafanalib.core import (
+    Dashboard, TimeSeries, GaugePanel,
+    Target, GridPos,
+    OPS_FORMAT
+)
+
+dashboard = Dashboard(
+    title="Python generated example dashboard",
+    description="Example dashboard using the Random Walk and default Prometheus datasource",
+    tags=[
+        'example'
+    ],
+    timezone="browser",
+    panels=[
+        TimeSeries(
+            title="Random Walk",
+            dataSource='default',
+            targets=[
+                Target(
+                    datasource='grafana',
+                    expr='example',
+                ),
+            ],
+            gridPos=GridPos(h=8, w=16, x=0, y=0),
+        ),
+        GaugePanel(
+            title="Random Walk",
+            dataSource='default',
+            targets=[
+                Target(
+                    datasource='grafana',
+                    expr='example',
+                ),
+            ],
+            gridPos=GridPos(h=4, w=4, x=17, y=0),
+        ),
+        TimeSeries(
+            title="Prometheus http requests",
+            dataSource='prometheus',
+            targets=[
+                Target(
+                    expr='rate(prometheus_http_requests_total[5m])',
+                    legendFormat="{{ handler }}",
+                    refId='A',
+                ),
+            ],
+            unit=OPS_FORMAT,
+            gridPos=GridPos(h=8, w=16, x=0, y=10),
+        ),
+    ],
+).auto_panel_ids()

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

@@ -1,139 +0,0 @@
-from grafanalib.core import Dashboard, Templating, Template, TimeSeries, PERCENT_UNIT_FORMAT, GridPos, Target
-from grafanalib.formatunits import BYTES_IEC
-
-from common import PrometheusTemplate
-from node_consts import CPU_BASIC_COLORS, MEMORY_BASIC_COLORS
-
-dashboard = Dashboard(
-    title='Node Exporter',
-    uid='node',
-    description='Node Exporter (not quite full)',
-    tags=[
-        'linux',
-    ],
-    timezone='browser',
-    templating=Templating(list=[
-        # Datasource
-        PrometheusTemplate,
-        # Job
-        Template(
-            name='job',
-            label='Job',
-            dataSource='${datasource}',
-            query='label_values(node_uname_info, job)',
-        ),
-        # Instance
-        Template(
-            name='instance',
-            label='Instance',
-            dataSource='${datasource}',
-            query='label_values(node_uname_info{job="$job"}, instance)',
-        ),
-    ]),
-    panels=[
-        # CPU Basic
-        TimeSeries(
-            title='CPU Basic',
-            description='Basic CPU usage info',
-            unit=PERCENT_UNIT_FORMAT,
-            gridPos=GridPos(h=8, w=12, x=0, y=0),
-            lineWidth=1,
-            fillOpacity=30,
-            showPoints='never',
-            stacking={'mode': 'percent', 'group': 'A'},
-            tooltipMode='all',
-            tooltipSort='desc',
-            targets=[
-                Target(
-                    datasource='${datasource}',
-                    expr='sum(irate(node_cpu_seconds_total{instance="$instance",job="$job", mode="system"}[$__rate_interval])) / scalar(count(count(node_cpu_seconds_total{instance="$instance",job="$job"}) by (cpu)))',
-                    legendFormat='Busy System',
-                    refId='A',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='sum(irate(node_cpu_seconds_total{instance="$instance",job="$job", mode="user"}[$__rate_interval])) / scalar(count(count(node_cpu_seconds_total{instance="$instance",job="$job"}) by (cpu)))',
-                    legendFormat='Busy User',
-                    refId='B',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='sum(irate(node_cpu_seconds_total{instance="$instance",job="$job", mode="iowait"}[$__rate_interval])) / scalar(count(count(node_cpu_seconds_total{instance="$instance",job="$job"}) by (cpu)))',
-                    legendFormat='Busy Iowait',
-                    refId='C',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='sum(irate(node_cpu_seconds_total{instance="$instance",job="$job", mode=~".*irq"}[$__rate_interval])) / scalar(count(count(node_cpu_seconds_total{instance="$instance",job="$job"}) by (cpu)))',
-                    legendFormat='Busy IRQs',
-                    refId='D',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='sum(irate(node_cpu_seconds_total{instance="$instance",job="$job",  mode!="idle",mode!="user",mode!="system",mode!="iowait",mode!="irq",mode!="softirq"}[$__rate_interval])) / scalar(count(count(node_cpu_seconds_total{instance="$instance",job="$job"}) by (cpu)))',
-                    legendFormat='Busy Other',
-                    refId='E',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='sum(irate(node_cpu_seconds_total{instance="$instance",job="$job", mode="idle"}[$__rate_interval])) / scalar(count(count(node_cpu_seconds_total{instance="$instance",job="$job"}) by (cpu)))',
-                    legendFormat='Idle',
-                    refId='F',
-                ),
-            ],
-            # Extra JSON for the colors
-            extraJson=CPU_BASIC_COLORS,
-        ),
-        # Memory Basic
-        TimeSeries(
-            title='Memory Basic',
-            description='Basic memory usage',
-            unit=BYTES_IEC,
-            gridPos=GridPos(h=8, w=12, x=12, y=0),
-            lineWidth=1,
-            fillOpacity=30,
-            showPoints='never',
-            stacking={'mode': 'normal', 'group': 'A'},
-            tooltipMode='all',
-            tooltipSort='desc',
-            targets=[
-                Target(
-                    datasource='${datasource}',
-                    expr='node_memory_MemTotal_bytes{instance="$instance",job="$job"}',
-                    format='time_series',
-                    legendFormat='RAM Total',
-                    refId='A',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='node_memory_MemTotal_bytes{instance="$instance",job="$job"} - node_memory_MemFree_bytes{instance="$instance",job="$job"} - (node_memory_Cached_bytes{instance="$instance",job="$job"} + node_memory_Buffers_bytes{instance="$instance",job="$job"} + node_memory_SReclaimable_bytes{instance="$instance",job="$job"})',
-                    format='time_series',
-                    legendFormat='RAM Used',
-                    refId='B',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='node_memory_Cached_bytes{instance="$instance",job="$job"} + node_memory_Buffers_bytes{instance="$instance",job="$job"} + node_memory_SReclaimable_bytes{instance="$instance",job="$job"}',
-                    legendFormat='RAM Cache + Buffer',
-                    refId='C',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='node_memory_MemFree_bytes{instance="$instance",job="$job"}',
-                    legendFormat='RAM Free',
-                    refId='D',
-                ),
-                Target(
-                    datasource='${datasource}',
-                    expr='(node_memory_SwapTotal_bytes{instance="$instance",job="$job"} - node_memory_SwapFree_bytes{instance="$instance",job="$job"})',
-                    legendFormat='SWAP Used',
-                    refId='E',
-                ),
-            ],
-            # Extra JSON for the colors
-            extraJson=MEMORY_BASIC_COLORS,
-        ),
-        # TODO: Network Basic
-        # TODO: Disk Basic
-    ],
-).auto_panel_ids()

roles/alpina/templates/services/monitoring/grafana_config/dashboards/node_consts.py

@@ -1,487 +0,0 @@
-# TODO: Question life decisions (I'm not sure if this is good)
-
-CPU_BASIC_COLORS = {
-    "fieldConfig": {
-        "overrides": [
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Busy Iowait"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#890F02",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Idle"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#052B51",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Busy Iowait"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#890F02",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Idle"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#7EB26D",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Busy System"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#EAB839",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Busy User"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#0A437C",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Busy Other"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#6D1F62",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            }
-        ]
-    },
-}
-
-MEMORY_BASIC_COLORS = {
-    "fieldConfig": {
-        "overrides": [
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Apps"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#629E51",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Buffers"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#614D93",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Cache"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#6D1F62",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Cached"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#511749",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Committed"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#508642",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Free"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#0A437C",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Hardware Corrupted - Amount of RAM that the kernel identified as corrupted / not working"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#CFFAFF",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Inactive"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#584477",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "PageTables"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#0A50A1",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Page_Tables"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#0A50A1",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "RAM_Free"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#E0F9D7",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "SWAP Used"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#BF1B00",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Slab"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#806EB7",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Slab_Cache"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#E0752D",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Swap"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#BF1B00",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Swap Used"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#BF1B00",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Swap_Cache"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#C15C17",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Swap_Free"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#2F575E",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Unused"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#EAB839",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "RAM Total"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#E0F9D7",
-                            "mode": "fixed"
-                        }
-                    },
-                    {
-                        "id": "custom.fillOpacity",
-                        "value": 0
-                    },
-                    {
-                        "id": "custom.stacking",
-                        "value": {
-                            "group": False,
-                            "mode": "normal"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "RAM Cache + Buffer"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#052B51",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "RAM Free"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#7EB26D",
-                            "mode": "fixed"
-                        }
-                    }
-                ]
-            },
-            {
-                "matcher": {
-                    "id": "byName",
-                    "options": "Available"
-                },
-                "properties": [
-                    {
-                        "id": "color",
-                        "value": {
-                            "fixedColor": "#DEDAF7",
-                            "mode": "fixed"
-                        }
-                    },
-                    {
-                        "id": "custom.fillOpacity",
-                        "value": 0
-                    },
-                    {
-                        "id": "custom.stacking",
-                        "value": {
-                            "group": False,
-                            "mode": "normal"
-                        }
-                    }
-                ]
-            }
-        ]
-    }
-}

roles/alpina/templates/services/monitoring/grafana_config/datasources/alpina.yaml.j2

@@ -15,6 +15,18 @@ datasources:
     url: http://prometheus:9090
     editable: false
 
+  - name: Alertmanager
+    type: alertmanager
+    access: proxy
+    uid: alertmanager
+    url: http://alertmanager:9093
+    jsonData:
+      # Valid options for implementation include mimir, cortex and prometheus
+      implementation: prometheus
+      # Whether Grafana should send alert instances to this Alertmanager
+      handleGrafanaManagedAlerts: true
+    editable: false
+
   - name: InfluxDB
     type: influxdb
     access: proxy

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

@@ -17,6 +17,13 @@ common:
 
 schema_config:
   configs:
+    - from: 2020-10-24
+      store: boltdb-shipper
+      object_store: filesystem
+      schema: v12
+      index:
+        prefix: index_
+        period: 24h
     - from: 2024-10-18
       index:
         period: 24h
@@ -26,5 +33,5 @@ schema_config:
       store: tsdb
 
 # TODO: Figure this out
-# ruler:
+ruler:
-#   alertmanager_url: http://localhost:9093
+  alertmanager_url: http://localhost:9093

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/demo.alerts.yml.j2

@@ -0,0 +1,20 @@
+groups:
+  - name: demo-service-alerts
+    rules:
+      - alert: DemoServiceHighErrorRate
+        expr: |
+          (
+            sum without(status, instance) (
+              rate(demo_api_request_duration_seconds_count{status=~"5..",job="demo"}[1m])
+            )
+          /
+            sum without(status, instance) (
+              rate(demo_api_request_duration_seconds_count{job="demo"}[1m])
+            ) * 100 > 0.5
+          )
+        for: 1m
+        labels:
+          severity: critical
+        annotations:
+          title: 'High 5xx rate for {{'{{ $labels.method }}'}} on {{'{{ $labels.path }}'}}'
+          description: 'The 5xx error rate for path {{'{{ $labels.path }}'}} with method {{'{{ $labels.method }}'}} in {{'{{ $labels.job }}'}} is {{'{{ printf "%.2f" $value }}'}}%.'

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

@@ -5,6 +5,11 @@ global:
   external_labels:
     monitor: "{{ ansible_host }}"
 
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets: ["alertmanager:9093"]
+
 scrape_configs:
   - job_name: "prometheus"
     static_configs:
@@ -30,7 +35,15 @@ scrape_configs:
     static_configs:
       - targets: ["promtail:9080"]
 
+  - job_name: 'demo'
+    static_configs:
+      - targets:
+          - 'demo.promlabs.com:10000'
+          - 'demo.promlabs.com:10001'
+          - 'demo.promlabs.com:10002'
+
 rule_files:
+  - "/etc/prometheus/container.alerts.yml"
   - "/etc/prometheus/extra/rules/*.yml"
   - "/etc/prometheus/extra/rules/*.json"
 

services.yml

@@ -5,11 +5,10 @@
   post_tasks:
     - name: Docker prune objects
       docker_prune:
-        containers: true
+        containers: yes
-        # Keep images for building grafana
+        images: yes
-        images: true
         images_filters:
-          until: "720h"
+          dangling: false
         networks: true
         volumes: true
-        builder_cache: false
+        builder_cache: true