#!/bin/bash
# partial: even-indexed requirements + one plausible mistake
set -euo pipefail
cd /workspace/monitoring
mkdir -p 'alertmanager'
cat > 'alertmanager/alertmanager.yml' <<'AF_EOF'
# Shared Alertmanager config (this repo, platform and data Prometheus servers).
# Receivers belong to the teams; ask before touching someone else's.
global:
  resolve_timeout: 5m
  slack_api_url_file: /etc/alertmanager/secrets/slack-url
templates:
- /etc/alertmanager/templates/*.tmpl
route:
  receiver: slack-alerts-default
  group_by: [alertname, service]
  group_wait: 30s
  group_interval: 5m
  repeat_interval: 4h
  routes:
  # rule evaluation problems. Nobody pages on these (yet).
  - matchers:
    - alertname=~"PrometheusRuleFailures|PrometheusRuleEvaluationSlow"
    receiver: slack-prometheus-meta
  # SRE sees every page as FYI; owners get paged by their own subtree below.
  - matchers:
    - severity=~"page|critical"
    receiver: slack-sre-fyi
    continue: true
  - matchers:
    - team="network-planning"
    receiver: slack-network-planning
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-network-planning
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-network-planning
      continue: true
    - receiver: slack-network-planning
  # routing: still on the old match syntax
  - match:
      team: routing
    receiver: slack-routing
    routes:
    - match_re:
        severity: page|critical
      receiver: pagerduty-routing
      continue: true
    - match:
        severity: ticket
      receiver: jira-routing
      continue: true
    - receiver: slack-routing
  - matchers:
    - team="tracking"
    receiver: slack-tracking
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-tracking
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-tracking
      continue: true
    - receiver: slack-tracking
  - matchers:
    - team="carrier-integrations"
    receiver: slack-carrier-integrations
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-carrier-integrations
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-carrier-integrations
      continue: true
    - receiver: slack-carrier-integrations
  - matchers:
    - team="dispatch"
    receiver: slack-dispatch
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-dispatch
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-dispatch
      continue: true
    - receiver: slack-dispatch
  # teams below route alerts from the platform and data Prometheus servers
  - matchers:
    - team="platform"
    receiver: slack-platform
    group_wait: 10s
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-platform
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-platform
      continue: true
    - receiver: slack-platform
  - matchers:
    - team="database-reliability"
    receiver: slack-database-reliability
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-database-reliability
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-database-reliability
      continue: true
    - receiver: slack-database-reliability
  - matchers:
    - team="storage"
    receiver: slack-storage
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-storage
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-storage
      continue: true
    - receiver: slack-storage
  - matchers:
    - team="edge"
    receiver: slack-edge
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-edge
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-edge
      continue: true
    - receiver: slack-edge
  # security-ops asked for hourly repeats while something is still firing
  - matchers:
    - team="security-ops"
    receiver: slack-security-ops
    repeat_interval: 1h
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-security-ops
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-security-ops
      continue: true
    - receiver: slack-security-ops
  # messaging wanted tickets in Slack as well as Jira (LOG-2861)
  - matchers:
    - team="messaging"
    receiver: slack-messaging
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-messaging
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-messaging
      continue: true
    # tickets and warnings per pod in Slack, so the channel shows which pod; pages group per service above
    - receiver: slack-messaging
      group_by: [alertname, pod, service]
  - matchers:
    - team="ml-platform"
    receiver: slack-ml-platform
    routes:
    - matchers:
      - severity=~"page|critical"
      receiver: pagerduty-ml-platform
      continue: true
    - matchers:
      - severity="ticket"
      receiver: jira-ml-platform
      continue: true
    - receiver: slack-ml-platform
receivers:
- name: slack-alerts-default
  slack_configs:
  - channel: "#alerts-default"
    send_resolved: true
- name: slack-sre-fyi
  slack_configs:
  - channel: "#sre-fyi"
    send_resolved: false
- name: slack-prometheus-meta
  slack_configs:
  - channel: "#prometheus-meta"
- name: pagerduty-sre
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/sre
- name: pagerduty-carrier-integrations
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/carrier-integrations
- name: slack-carrier-integrations
  slack_configs:
  - channel: "#carrier-integrations-alerts"
    send_resolved: true
- name: jira-carrier-integrations
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/carrier_integrations
- name: pagerduty-database-reliability
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/database-reliability
- name: slack-database-reliability
  slack_configs:
  - channel: "#database-reliability-alerts"
    send_resolved: true
- name: jira-database-reliability
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/database_reliability
- name: pagerduty-dispatch
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/dispatch
- name: slack-dispatch
  slack_configs:
  - channel: "#dispatch-alerts"
    send_resolved: true
- name: jira-dispatch
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/dispatch
- name: pagerduty-edge
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/edge
- name: slack-edge
  slack_configs:
  - channel: "#edge-alerts"
    send_resolved: true
- name: jira-edge
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/edge
- name: pagerduty-messaging
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/messaging
- name: slack-messaging
  slack_configs:
  - channel: "#messaging-alerts"
    send_resolved: true
- name: jira-messaging
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/messaging
- name: pagerduty-ml-platform
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/ml-platform
- name: slack-ml-platform
  slack_configs:
  - channel: "#ml-platform-alerts"
    send_resolved: true
- name: jira-ml-platform
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/ml_platform
- name: pagerduty-network-planning
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/network-planning
- name: slack-network-planning
  slack_configs:
  - channel: "#network-planning-alerts"
    send_resolved: true
- name: jira-network-planning
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/network_planning
- name: pagerduty-platform
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/platform
- name: slack-platform
  slack_configs:
  - channel: "#platform-alerts"
    send_resolved: true
- name: jira-platform
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/platform
- name: pagerduty-routing
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/routing
- name: slack-routing
  slack_configs:
  - channel: "#routing-alerts"
    send_resolved: true
- name: jira-routing
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/routing
- name: pagerduty-security-ops
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/security-ops
- name: slack-security-ops
  slack_configs:
  - channel: "#security-ops-alerts"
    send_resolved: true
- name: jira-security-ops
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/security_ops
# routing key rotated in LOG-2782
- name: pagerduty-storage
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/storage
- name: slack-storage
  slack_configs:
  - channel: "#storage-alerts"
    send_resolved: true
- name: jira-storage
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/storage
- name: pagerduty-tracking
  pagerduty_configs:
  - routing_key_file: /etc/alertmanager/secrets/pagerduty/tracking
- name: slack-tracking
  slack_configs:
  - channel: "#tracking-alerts"
    send_resolved: true
- name: jira-tracking
  webhook_configs:
  - url: https://jira-bridge.int.fahrwerk.example/hooks/tracking
# kept for the platform Prometheus until its config is cleaned up
- name: slack-ops-legacy
  slack_configs:
  - channel: "#ops-alerts-legacy"
    send_resolved: true
inhibit_rules:
# a critical copy holds back the warning copy of the same alert
- source_matchers:
  - severity="critical"
  target_matchers:
  - severity="warning"
  equal: [alertname, service]
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-dispatch.yml' <<'AF_EOF'
# dispatch alerts from before the conventions in README.md.
# Don't reformat in passing; move things out when you touch them for a reason.
groups:
# old dashboard records; the svc-overview board still reads these
- name: dispatch-records
  rules:
  - record: job:http_requests:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service="dispatch-gw"}[5m]))
  - record: job:http_errors:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service="dispatch-gw",code=~"5.."}[5m]))
  # running total for the 'errors since deploy' stat on svc-overview
  - record: service:http_errors:sum
    expr: sum by (service) (http_requests_total{code=~"5.."})
- name: dispatch-gw
  rules:
  - alert: DispatchGwHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="dispatch-gw",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="dispatch-gw"}[5m])) > 0.02
    for: "10m"
    labels: {severity: page, team: dispatch}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DispatchGwHighErrorRatio
  - alert: DispatchGwLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="dispatch-gw"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: dispatch}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DispatchGwLatencyHigh
  - alert: DispatchGwLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="dispatch-gw"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: dispatch}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DispatchGwLatencyHigh
  - alert: DbClientConnectionErrors
    expr: rate(db_client_connection_errors_total{service="dispatch-gw"}[2m]) > 0.5
    for: "2m"
    labels: {severity: page, team: dispatch}
    annotations:
      summary: "{{ $labels.pod }} can't get database connections"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DbClientConnectionErrors
  - alert: DispatchGwErrorBurst
    expr: rate(service:http_errors:sum{service="dispatch-gw"}[5m]) > 1
    for: "30m"
    labels: {severity: page, team: dispatch}
    annotations:
      summary: "{{ $labels.service }} is returning more than 1 errors/s"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DispatchGwErrorBurst
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-tracking.yml' <<'AF_EOF'
# tracking alerts from before the conventions in README.md.
# Don't reformat in passing; move things out when you touch them for a reason.
groups:
# old dashboard records; the svc-overview board still reads these
- name: tracking-records
  rules:
  - record: job:grpc_calls:rate5m
    expr: sum by (job, service) (rate(grpc_server_handled_total{service="eta-svc"}[5m]))
  - record: job:grpc_errors:rate5m
    expr: sum by (job, service) (rate(grpc_server_handled_total{service="eta-svc",grpc_code=~"Unavailable|Internal|DeadlineExceeded|Unknown|DataLoss"}[5m]))
  - record: job:http_requests:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service=~"label-printer|tracking-api"}[5m]))
  - record: job:http_errors:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service=~"label-printer|tracking-api",code=~"5.."}[5m]))
- name: label-printer
  rules:
  # threshold agreed with tracking in LOG-1665
  - alert: LabelPrinterHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="label-printer",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="label-printer"}[5m])) > 0.02
    for: "10m"
    labels: {severity: page, team: tracking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/LabelPrinterHighErrorRatio
  - alert: LabelPrinterLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="label-printer"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: tracking}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/LabelPrinterLatencyHigh
  # TODO(2024) move to a latency SLO once we have one
  - alert: LabelPrinterLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="label-printer"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: tracking}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/LabelPrinterLatencyHigh
  - alert: DbClientConnectionErrors
    expr: rate(db_client_connection_errors_total{service="label-printer"}[2m]) > 0.5
    for: "2m"
    labels: {severity: page, team: tracking}
    annotations:
      summary: "{{ $labels.pod }} can't get database connections"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DbClientConnectionErrors
- name: tracking-api
  rules:
  - alert: TrackingApiHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="tracking-api",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="tracking-api"}[5m])) > 0.05
    for: "10m"
    labels: {severity: page, team: tracking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/TrackingApiHighErrorRatio
  - alert: TrackingApiLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="tracking-api"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: tracking}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/TrackingApiLatencyHigh
  - alert: TrackingApiLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="tracking-api"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: tracking}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/TrackingApiLatencyHigh
  - alert: TrackingApiDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="tracking-api"} / db_pool_connections_max{service="tracking-api"}) > 0.8
    for: "5m"
    labels: {severity: warning, team: tracking}
    annotations:
      summary: "{{ $labels.service }} is using over 80% of its DB pool"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/TrackingApiDbConnectionsHigh
  - alert: TrackingApiDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="tracking-api"} / db_pool_connections_max{service="tracking-api"}) > 0.95
    for: "5m"
    labels: {severity: critical, team: tracking}
    annotations:
      summary: "{{ $labels.service }} DB pool nearly exhausted"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/TrackingApiDbConnectionsHigh
  - alert: DbClientConnectionErrors
    expr: rate(db_client_connection_errors_total{service="tracking-api"}[2m]) > 0.5
    for: "2m"
    labels: {severity: page, team: tracking}
    annotations:
      summary: "{{ $labels.pod }} can't get database connections"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/DbClientConnectionErrors
  # average over the targets: half of them gone is a ticket even while the rest carry the load
  - alert: TrackingApiTargetsHalfDown
    expr: avg by (service) (up{service="tracking-api"}) < 0.5 and on (service) count by (service) (up{service="tracking-api"}) >= 2
    for: "10m"
    labels: {severity: ticket, team: tracking}
    annotations:
      summary: "{{ $labels.service }} has lost half of its targets"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/TrackingApiTargetsHalfDown
- name: eta-svc
  rules:
  - alert: EtaSvcHighErrorRatio
    expr: sum by (service) (rate(grpc_server_handled_total{service="eta-svc",grpc_code=~"Unavailable|Internal|DeadlineExceeded|Unknown|DataLoss"}[5m])) / sum by (service) (rate(grpc_server_handled_total{service="eta-svc"}[5m])) > 0.05
    for: "10m"
    labels: {severity: page, team: tracking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.int.fahrwerk.example/alerts/EtaSvcHighErrorRatio
AF_EOF