diff --git a/ansible/inventory/group_vars/all/monitoring.yaml b/ansible/inventory/group_vars/all/monitoring.yaml new file mode 100644 index 0000000..92ed2a7 --- /dev/null +++ b/ansible/inventory/group_vars/all/monitoring.yaml @@ -0,0 +1,34 @@ +--- +# Monitoring: Prometheus, Loki and Grafana on asxpio-ops; node_exporter, +# cAdvisor and Alloy on both hosts. Scrapes and log shipping use the VPC. + +# renovate: datasource=docker depName=prom/prometheus +monitoring_prometheus_version: "v3.16.0" +# renovate: datasource=docker depName=grafana/grafana +monitoring_grafana_version: "12.4.15" +# renovate: datasource=docker depName=grafana/loki +monitoring_loki_version: "3.7.9" +# renovate: datasource=docker depName=grafana/alloy +monitoring_alloy_version: "v1.21.3" +# renovate: datasource=docker depName=prom/node-exporter +monitoring_node_exporter_version: "v1.12.1" +# renovate: datasource=docker depName=ghcr.io/google/cadvisor +monitoring_cadvisor_version: "v0.60.6" +# renovate: datasource=docker depName=prom/blackbox-exporter +monitoring_blackbox_version: "v0.29.1" +# renovate: datasource=docker depName=quay.io/prometheuscommunity/postgres-exporter +monitoring_postgres_exporter_version: "v0.20.1" + +monitoring_metrics_retention: 30d +monitoring_logs_retention: 336h # 14 days +monitoring_alert_email: me@asxp.io + +# Agents listen on the host's VPC address only +monitoring_node_exporter_port: 9100 +monitoring_cadvisor_port: 9180 +monitoring_loki_port: 3100 +monitoring_textfile_dir: /var/lib/node_exporter/textfile + +monitoring_grafana_host: gf.asxp.io +monitoring_grafana_admin_password: "{{ vault_grafana_admin_password }}" +monitoring_forgejo_metrics_token: "{{ vault_forgejo_metrics_token }}" diff --git a/ansible/inventory/group_vars/all/vault.yaml b/ansible/inventory/group_vars/all/vault.yaml index 56ccbff..0d69c67 100644 --- a/ansible/inventory/group_vars/all/vault.yaml +++ b/ansible/inventory/group_vars/all/vault.yaml @@ -1,162 +1,170 @@ $ANSIBLE_VAULT;1.1;AES256 -62383639653033613330393038663633626639623331333361623062323062646462353239616633 -3832353736626233646462323464613639636462373835300a663964363162326364653838613165 -31613033663365663434353564653764366436643861363464323537623464386334313831353435 -6639623166373233630a306431383263626264386663326163333031386235666263373631343965 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+37306432393938363435303332336335393764306233633931373662356536616262 diff --git a/ansible/roles/forgejo/templates/app.ini.j2 b/ansible/roles/forgejo/templates/app.ini.j2 index 0220189..7d51781 100644 --- a/ansible/roles/forgejo/templates/app.ini.j2 +++ b/ansible/roles/forgejo/templates/app.ini.j2 @@ -99,3 +99,8 @@ SHOW_FOOTER_VERSION = false SHOW_FOOTER_TEMPLATE_LOAD_TIME = false SHOW_FOOTER_POWERED_BY = false + +[metrics] +; scraped by Prometheus on asxpio-ops over the traefik network +ENABLED = true +TOKEN = {{ monitoring_forgejo_metrics_token }} diff --git a/ansible/roles/monitoring/defaults/main.yaml b/ansible/roles/monitoring/defaults/main.yaml new file mode 100644 index 0000000..293e704 --- /dev/null +++ b/ansible/roles/monitoring/defaults/main.yaml @@ -0,0 +1,24 @@ +--- +monitoring_base_path: "{{ services_base_path }}/monitoring" + +# Hosts with node_exporter, cAdvisor and Alloy, scraped over the VPC +monitoring_hosts: + - { name: asxpio-ops, address: "{{ asxpio_ops_vpc_ip }}" } + - { name: asxpio-services, address: "{{ asxpio_services_vpc_ip }}" } + +# Outside-in probes (blackbox_exporter). module: see blackbox.yml.j2 +monitoring_probes: + - { name: asxp.io, target: "https://asxp.io/", module: http_2xx } + - { name: blog, target: "https://blog.asxp.io/", module: http_2xx } + - { name: czsk.it, target: "https://czsk.it/", module: http_2xx } + - { name: datacenterbingo, target: "https://datacenterbingo.xyz/", module: http_2xx } + - { name: datacenterbingo data.json, target: "https://datacenterbingo.xyz/data.json", module: http_2xx } + - { name: forgejo, target: "https://git.asxp.io/", module: http_2xx } + - { name: s3, target: "https://s3.asxp.io/", module: http_up } + - { name: sillytavern, target: "http://{{ asxpio_services_wireguard_ip }}:8000/", module: http_up } + - { name: xmpp c2s starttls, target: "xmpp.asxp.io:5222", module: xmpp_starttls } + - { name: xmpp c2s tls, target: "xmpp.asxp.io:5223", module: tls_connect } + - { name: xmpp s2s, target: "xmpp.asxp.io:5269", module: tcp_connect } + - { name: turn, target: "xmpp.asxp.io:3478", module: tcp_connect } + - { name: xray, target: "{{ hostvars['asxpio-services'].public_ip }}:443", module: tcp_connect } + - { name: minecraft, target: "mc.asxp.io:25565", module: tcp_connect } diff --git a/ansible/roles/monitoring/files/dashboards/Infrastructure/containers.json b/ansible/roles/monitoring/files/dashboards/Infrastructure/containers.json new file mode 100644 index 0000000..06f43b0 --- /dev/null +++ b/ansible/roles/monitoring/files/dashboards/Infrastructure/containers.json @@ -0,0 +1,781 @@ +{ + "annotations": { + "list": [ + { + "builtIn": 1, + "datasource": "-- Grafana --", + "enable": true, + "hide": true, + "iconColor": "rgba(0, 211, 255, 1)", + "name": "Annotations & Alerts", + "type": "dashboard" + } + ] + }, + "editable": true, + "gnetId": 14282, + "graphTooltip": 0, + "id": null, + "iteration": 1617715580880, + "links": [], + "panels": [ + { + "collapsed": false, + "datasource": "prometheus", + "gridPos": { + "h": 1, + "w": 24, + "x": 0, + "y": 0 + }, + "id": 8, + "panels": [], + "title": "CPU", + "type": "row" + }, + { + "aliasColors": {}, + "bars": false, + "dashLength": 10, + "dashes": false, + "datasource": "prometheus", + "fieldConfig": { + "defaults": { + "custom": {} + }, + "overrides": [] + }, + "fill": 1, + "fillGradient": 0, + "gridPos": { + "h": 7, + "w": 24, + "x": 0, + "y": 1 + }, + "hiddenSeries": false, + "id": 15, + "legend": { + "alignAsTable": true, + "avg": true, + "current": false, + "max": true, + "min": false, + "rightSide": true, + "show": true, + "total": false, + "values": true + }, + "lines": true, + "linewidth": 1, + "nullPointMode": "null as zero", + "options": { + "alertThreshold": true + }, + "percentage": false, + "pluginVersion": "7.4.5", + "pointradius": 2, + "points": false, + "renderer": "flot", + "seriesOverrides": [], + "spaceLength": 10, + "stack": true, + "steppedLine": false, + "targets": [ + { + "expr": 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(rate(container_cpu_usage_seconds_total{name!=\"\"}[$__rate_interval])))", + "legendFormat": "{{host}} \u00b7 {{name}}", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 10, + "w": 10, + "x": 8, + "y": 24 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + }, + "unit": "percentunit" + }, + "overrides": [] + }, + "options": { + "legend": { + "displayMode": "table", + "placement": "right", + "calcs": [ + "mean", + "max" + ], + "showLegend": true + }, + "tooltip": { + "mode": "multi", + "sort": "desc" + } + } + }, + { + "type": "table", + "title": "Restarts (24 h)", + "id": 17, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "sort_desc(sum by (host, name) (changes(container_start_time_seconds{name!=\"\"}[24h])) > 0)", + "legendFormat": "", + "refId": "A", + "instant": true, + "range": false + } + ], + "gridPos": { + "h": 10, + "w": 6, + "x": 18, + "y": 24 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "green", + "value": null + }, + { + "color": "orange", + "value": 1 + }, + { + "color": "red", + "value": 3 + } + ] + } + }, + "overrides": [ + { + "matcher": { + "id": "byName", + "options": "Value" + }, + "properties": [ + { + "id": "displayName", + "value": "restarts" + }, + { + "id": "custom.cellOptions", + "value": { + "type": "color-background" + } + } + ] + }, + { + "matcher": { + "id": "byName", + "options": "Time" + }, + "properties": [ + { + "id": "custom.hidden", + "value": true + } + ] + } + ] + }, + "options": { + "showHeader": true, + "cellHeight": "sm" + } + }, + { + "type": "row", + "title": "Web traffic (Traefik)", + "id": 18, + "collapsed": false, + "gridPos": { + "h": 1, + "w": 24, + "x": 0, + "y": 34 + }, + "panels": [] + }, + { + "type": "timeseries", + "title": "Requests by router", + "id": 19, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "sum by (router) (rate(traefik_router_requests_total[$__rate_interval]))", + "legendFormat": "{{router}}", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 8, + "w": 8, + "x": 0, + "y": 35 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + }, + "unit": "reqps" + }, + "overrides": [] + }, + "options": { + "legend": { + "displayMode": "list", + "placement": "bottom", + "showLegend": true + }, + "tooltip": { + "mode": "multi", + "sort": "desc" + } + } + }, + { + "type": "timeseries", + "title": "5xx by router", + "id": 20, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "sum by (router) (rate(traefik_router_requests_total{code=~\"5..\"}[$__rate_interval]))", + "legendFormat": "{{router}}", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 8, + "w": 8, + "x": 8, + "y": 35 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + }, + "unit": "reqps" + }, + "overrides": [] + }, + "options": { + "legend": { + "displayMode": "list", + "placement": "bottom", + "showLegend": true + }, + "tooltip": { + "mode": "multi", + "sort": "desc" + } + } + }, + { + "type": "timeseries", + "title": "Latency p95 by router", + "id": 21, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "histogram_quantile(0.95, sum by (le, router) (rate(traefik_router_request_duration_seconds_bucket[$__rate_interval])))", + "legendFormat": "{{router}}", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 8, + "w": 8, + "x": 16, + "y": 35 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + }, + "unit": "s" + }, + "overrides": [] + }, + "options": { + "legend": { + "displayMode": "list", + "placement": "bottom", + "showLegend": true + }, + "tooltip": { + "mode": "multi", + "sort": "desc" + } + } + }, + { + "type": "row", + "title": "Data and backups", + "id": 22, + "collapsed": false, + "gridPos": { + "h": 1, + "w": 24, + "x": 0, + "y": 43 + }, + "panels": [] + }, + { + "type": "stat", + "title": "Postgres", + "id": 23, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "pg_up", + "legendFormat": "up", + "refId": "A", + "instant": true, + "range": false + } + ], + "gridPos": { + "h": 6, + "w": 4, + "x": 0, + "y": 44 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "red", + "value": null + }, + { + "color": "green", + "value": 1 + } + ] + }, + "mappings": [ + { + "type": "value", + "options": { + "0": { + "text": "DOWN", + "color": "red" + }, + "1": { + "text": "UP", + "color": "green" + } + } + } + ] + }, + "overrides": [] + }, + "options": { + "reduceOptions": { + "calcs": [ + "lastNotNull" + ], + "fields": "", + "values": false + }, + "colorMode": "background", + "graphMode": "none", + "textMode": "value_and_name", + "justifyMode": "center", + "orientation": "auto" + } + }, + { + "type": "stat", + "title": "asxpio DB size", + "id": 24, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "pg_database_size_bytes{datname=\"asxpio\"}", + "legendFormat": "asxpio", + "refId": "A", + "instant": true, + "range": false + } + ], + "gridPos": { + "h": 6, + "w": 4, + "x": 4, + "y": 44 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "unit": "bytes", + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "blue", + "value": null + } + ] + } + }, + "overrides": [] + }, + "options": { + "reduceOptions": { + "calcs": [ + "lastNotNull" + ], + "fields": "", + "values": false + }, + "colorMode": "value", + "graphMode": "none", + "textMode": "value_and_name", + "justifyMode": "center", + "orientation": "auto" + } + }, + { + "type": "timeseries", + "title": "Postgres connections", + "id": 25, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "sum by (datname) (pg_stat_activity_count)", + "legendFormat": "{{datname}}", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 6, + "w": 6, + "x": 8, + "y": 44 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + } + }, + "overrides": [] + }, + "options": { + "legend": { + "displayMode": "list", + "placement": "bottom", + "showLegend": true + }, + "tooltip": { + "mode": "multi", + "sort": "desc" + } + } + }, + { + "type": "bargauge", + "title": "Last good backup / replica (hours ago)", + "id": 26, + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "targets": [ + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "(time() - restic_backup_last_success_timestamp_seconds) / 3600", + "legendFormat": "restic \u00b7 {{host}} \u00b7 {{repo}}", + "refId": "A", + "instant": true, + "range": false + }, + { + "datasource": { + "type": "prometheus", + "uid": "prometheus" + }, + "expr": "(time() - s3_replicate_last_success_timestamp_seconds) / 3600", + "legendFormat": "replica hel1 \u2192 fsn1", + "refId": "B", + "instant": true, + "range": false + } + ], + "gridPos": { + "h": 6, + "w": 10, + "x": 14, + "y": 44 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "thresholds" + }, + "unit": "h", + "decimals": 1, + "min": 0, + "max": 48, + "thresholds": { + "mode": "absolute", + "steps": [ + { + "color": "green", + "value": null + }, + { + "color": "orange", + "value": 26 + }, + { + "color": "red", + "value": 48 + } + ] + } + }, + "overrides": [] + }, + "options": { + "displayMode": "basic", + "orientation": "horizontal", + "reduceOptions": { + "calcs": [ + "lastNotNull" + ], + "values": false + }, + "showUnfilled": true + } + }, + { + "type": "row", + "title": "Logs", + "id": 27, + "collapsed": false, + "gridPos": { + "h": 1, + "w": 24, + "x": 0, + "y": 50 + }, + "panels": [] + }, + { + "type": "timeseries", + "title": "Log lines by host", + "id": 28, + "datasource": { + "type": "loki", + "uid": "loki" + }, + "targets": [ + { + "datasource": { + "type": "loki", + "uid": "loki" + }, + "expr": "sum by (host) (count_over_time({job=~\"docker|journal\"}[$__interval]))", + "legendFormat": "{{host}}", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 8, + "w": 8, + "x": 0, + "y": 51 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + } + }, + "overrides": [] + }, + "options": { + "legend": { + "displayMode": "list", + "placement": "bottom", + "showLegend": true + }, + "tooltip": { + "mode": "multi", + "sort": "desc" + }, + "drawStyle": "bars" + } + }, + { + "type": "logs", + "title": "Errors (all containers)", + "id": 29, + "datasource": { + "type": "loki", + "uid": "loki" + }, + "targets": [ + { + "datasource": { + "type": "loki", + "uid": "loki" + }, + "expr": "{job=\"docker\"} |~ \"(?i)(error|fatal|panic|exception|traceback)\" != \"level=info\"", + "legendFormat": "", + "refId": "A", + "instant": false, + "range": true + } + ], + "gridPos": { + "h": 8, + "w": 16, + "x": 8, + "y": 51 + }, + "fieldConfig": { + "defaults": { + "color": { + "mode": "palette-classic" + } + }, + "overrides": [] + }, + "options": { + "showTime": true, + "wrapLogMessage": true, + "sortOrder": "Descending", + "enableLogDetails": true, + "dedupStrategy": "signature" + } + } + ], + "graphTooltip": 1, + "links": [ + { + "title": "Dashboards", + "type": "dashboards", + "asDropdown": true, + "includeVars": false, + "keepTime": true, + "tags": [] + } + ] +} \ No newline at end of file diff --git a/ansible/roles/monitoring/tasks/main.yaml b/ansible/roles/monitoring/tasks/main.yaml new file mode 100644 index 0000000..5454b40 --- /dev/null +++ b/ansible/roles/monitoring/tasks/main.yaml @@ -0,0 +1,37 @@ +--- +# Prometheus, Loki, Grafana, blackbox_exporter and postgres_exporter on +# asxpio-ops. Grafana: https://gf.asxp.io, WireGuard only. +- name: Create the provisioning directories + ansible.builtin.file: + path: "{{ monitoring_base_path }}/{{ item }}" + state: directory + mode: "0755" + loop: + - grafana/provisioning/datasources + - grafana/provisioning/dashboards + - grafana/provisioning/alerting + - grafana/dashboards + +- name: Deploy the dashboards + ansible.builtin.copy: + src: dashboards/ + dest: "{{ monitoring_base_path }}/grafana/dashboards/" + mode: "0644" + +- name: Deploy the monitoring stack + ansible.builtin.include_role: + name: docker_service + vars: + service_name: monitoring + service_base_path: "{{ monitoring_base_path }}" + service_templates: + - { src: docker-compose.yml.j2, dest: docker-compose.yml } + - { src: prometheus.yml.j2, dest: prometheus.yml } + - { src: blackbox.yml.j2, dest: blackbox.yml } + - { src: loki.yml.j2, dest: loki.yml } + - { src: grafana.env.j2, dest: grafana.env, mode: "0600" } + - { src: datasources.yaml.j2, dest: grafana/provisioning/datasources/datasources.yaml } + - { src: dashboards.yaml.j2, dest: grafana/provisioning/dashboards/dashboards.yaml } + - { src: alerting.yaml.j2, dest: grafana/provisioning/alerting/alerting.yaml } + - { src: alert-rules.yaml.j2, dest: grafana/provisioning/alerting/rules.yaml } + health_check_url: "http://{{ asxpio_ops_vpc_ip }}:{{ monitoring_loki_port }}/ready" diff --git a/ansible/roles/monitoring/templates/alert-rules.yaml.j2 b/ansible/roles/monitoring/templates/alert-rules.yaml.j2 new file mode 100644 index 0000000..e62fd89 --- /dev/null +++ b/ansible/roles/monitoring/templates/alert-rules.yaml.j2 @@ -0,0 +1,170 @@ +# Managed by Ansible (role monitoring). Generated; see the commit adding it. +{% raw %} +apiVersion: 1 +groups: + - orgId: 1 + name: asxpio + folder: Alerts + interval: 1m + rules: + - uid: host-down + title: "Host down" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "1 - up{job=\"node\"}", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [0] } } ] } + noDataState: OK + execErrState: Error + for: 2m + labels: { severity: critical } + annotations: { summary: "{{ $labels.host }} stopped answering (node_exporter over the VPC)" } + - uid: target-down + title: "Scrape target down" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "up{job!~\"node|probe_.*\"} == 0", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [-1] } } ] } + noDataState: OK + execErrState: Error + for: 5m + labels: { severity: warning } + annotations: { summary: "{{ $labels.job }} on {{ $labels.instance }} is not answering metrics scrapes" } + - uid: probe-down + title: "Service down (outside-in probe)" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "1 - probe_success", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [0] } } ] } + noDataState: OK + execErrState: Error + for: 2m + labels: { severity: critical } + annotations: { summary: "{{ $labels.probe }} ({{ $labels.instance }}) is not reachable" } + - uid: cert-expiry + title: "Certificate expires soon" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "(probe_ssl_earliest_cert_expiry - time()) / 86400", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: lt, params: [14] } } ] } + noDataState: OK + execErrState: Error + for: 1h + labels: { severity: warning } + annotations: { summary: "{{ $labels.probe }}: certificate expires in {{ $values.A.Value | printf \"%.0f\" }} days" } + - uid: disk-full + title: "Disk almost full" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "100 * (1 - node_filesystem_avail_bytes{fstype!~\"tmpfs|overlay|squashfs|fuse.*\"} / node_filesystem_size_bytes{fstype!~\"tmpfs|overlay|squashfs|fuse.*\"})", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [85] } } ] } + noDataState: OK + execErrState: Error + for: 10m + labels: { severity: warning } + annotations: { summary: "{{ $labels.host }} {{ $labels.mountpoint }} is {{ $values.A.Value | printf \"%.0f\" }}% full" } + - uid: memory-low + title: "Memory almost exhausted" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "100 * (1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes)", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [92] } } ] } + noDataState: OK + execErrState: Error + for: 10m + labels: { severity: warning } + annotations: { summary: "{{ $labels.host }} memory is {{ $values.A.Value | printf \"%.0f\" }}% used" } + - uid: container-restarting + title: "Container restart-looping" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "changes(container_start_time_seconds{name!=\"\"}[15m])", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [2] } } ] } + noDataState: OK + execErrState: Error + for: 0m + labels: { severity: critical } + annotations: { summary: "{{ $labels.name }} on {{ $labels.host }} restarted {{ $values.A.Value | printf \"%.0f\" }} times in 15 minutes" } + - uid: postgres-down + title: "Postgres down" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "pg_up", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: lt, params: [1] } } ] } + noDataState: OK + execErrState: Error + for: 1m + labels: { severity: critical } + annotations: { summary: "Postgres (storage) is not answering" } + - uid: backup-stale + title: "Backup stale" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "(time() - restic_backup_last_success_timestamp_seconds) / 3600", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [26] } } ] } + noDataState: OK + execErrState: Error + for: 0m + labels: { severity: warning } + annotations: { summary: "restic on {{ $labels.host }}: last good backup {{ $values.A.Value | printf \"%.0f\" }} hours ago" } + - uid: replica-stale + title: "Bucket replica stale" + condition: C + data: + - refId: A + relativeTimeRange: { from: 900, to: 0 } + datasourceUid: prometheus + model: { refId: A, expr: "(time() - s3_replicate_last_success_timestamp_seconds) / 3600", instant: true, intervalMs: 30000, maxDataPoints: 43200 } + - refId: C + datasourceUid: __expr__ + model: { refId: C, type: threshold, expression: A, conditions: [ { evaluator: { type: gt, params: [26] } } ] } + noDataState: OK + execErrState: Error + for: 0m + labels: { severity: warning } + annotations: { summary: "hel1 -> fsn1 bucket replica: last good run {{ $values.A.Value | printf \"%.0f\" }} hours ago" } +{% endraw %} diff --git a/ansible/roles/monitoring/templates/alerting.yaml.j2 b/ansible/roles/monitoring/templates/alerting.yaml.j2 new file mode 100644 index 0000000..1f79203 --- /dev/null +++ b/ansible/roles/monitoring/templates/alerting.yaml.j2 @@ -0,0 +1,17 @@ +apiVersion: 1 +contactPoints: + - orgId: 1 + name: email + receivers: + - uid: email-me + type: email + settings: + addresses: {{ monitoring_alert_email }} + singleEmail: true +policies: + - orgId: 1 + receiver: email + group_by: [alertname, host] + group_wait: 1m + group_interval: 5m + repeat_interval: 4h diff --git a/ansible/roles/monitoring/templates/blackbox.yml.j2 b/ansible/roles/monitoring/templates/blackbox.yml.j2 new file mode 100644 index 0000000..402c3eb --- /dev/null +++ b/ansible/roles/monitoring/templates/blackbox.yml.j2 @@ -0,0 +1,38 @@ +# Managed by Ansible (role monitoring). +modules: + http_2xx: + prober: http + timeout: 10s + http: + preferred_ip_protocol: ip4 + follow_redirects: true + # Up means "answers": 401/403/404 are fine (s3 root, allowlisted UIs) + http_up: + prober: http + timeout: 10s + http: + preferred_ip_protocol: ip4 + valid_status_codes: [200, 301, 302, 401, 403, 404] + tls_connect: + prober: tcp + timeout: 10s + tcp: + preferred_ip_protocol: ip4 + tls: true + tcp_connect: + prober: tcp + timeout: 10s + tcp: + preferred_ip_protocol: ip4 + # XMPP client port: stream header, STARTTLS, then the certificate + xmpp_starttls: + prober: tcp + timeout: 10s + tcp: + preferred_ip_protocol: ip4 + query_response: + - send: "" + - expect: "urn:ietf:params:xml:ns:xmpp-tls" + - send: "" + - expect: " "$f.tmp" && mv "$f.tmp" "$f" +} + case "${1:-}" in init) for name in "${!REPOS[@]}"; do @@ -56,6 +62,7 @@ run) [ "$(date +%a)" = "{{ restic_prune_weekday }}" ] && prune="--prune" log "$name: forget $prune" restic forget --host {{ inventory_hostname }} {{ restic_keep }} $prune || failed=1 + metric "$name" done rm -rf "$STAGE" diff --git a/ansible/roles/s3_replicate/templates/s3-replicate.j2 b/ansible/roles/s3_replicate/templates/s3-replicate.j2 index 88f2741..39126c1 100644 --- a/ansible/roles/s3_replicate/templates/s3-replicate.j2 +++ b/ansible/roles/s3_replicate/templates/s3-replicate.j2 @@ -16,4 +16,8 @@ rclone sync hel1:{{ p.src }} fsn1:{{ p.dst }} \ {% endfor %} --stats-one-line -v || failed=1 {% endfor %} +if [ $failed = 0 ]; then + f={{ monitoring_textfile_dir }}/s3_replicate.prom + printf '# HELP s3_replicate_last_success_timestamp_seconds Last fully successful hel1 to fsn1 replica.\n# TYPE s3_replicate_last_success_timestamp_seconds gauge\ns3_replicate_last_success_timestamp_seconds %s\n' "$(date +%s)" > "$f.tmp" && mv "$f.tmp" "$f" +fi exit $failed diff --git a/ansible/roles/traefik/templates/traefik.yml.j2 b/ansible/roles/traefik/templates/traefik.yml.j2 index 38244a7..1792ef1 100644 --- a/ansible/roles/traefik/templates/traefik.yml.j2 +++ b/ansible/roles/traefik/templates/traefik.yml.j2 @@ -16,6 +16,15 @@ entryPoints: scheme: https websecure: address: ":443" + # Prometheus metrics, reached on the traefik network only (not published) + metrics: + address: ":8082" + +metrics: + prometheus: + entryPoint: metrics + addRoutersLabels: true + addServicesLabels: true # Docker Provider providers: diff --git a/ansible/site.yaml b/ansible/site.yaml index bb14ebb..a50db23 100644 --- a/ansible/site.yaml +++ b/ansible/site.yaml @@ -14,12 +14,19 @@ roles: - { role: base, tags: [base] } +- name: Monitoring agents + hosts: asxpio + become: true + roles: + - { role: monitoring_agent, tags: [monitoring_agent, monitoring] } + - name: asxpio-ops services hosts: ops_servers become: true roles: - { role: traefik, tags: [traefik] } - { role: crawler_alert, tags: [crawler_alert] } + - { role: monitoring, tags: [monitoring] } - name: asxpio-services services hosts: services_servers