#!/bin/bash
# oracle: rewrites changed files to the oracle state
set -euo pipefail
cd /workspace/monitoring
mkdir -p 'rules'
cat > 'rules/disk.yml' <<'AF_EOF'
# host disks (infra)
groups:
- name: disk
  rules:
  - alert: HostDiskAlmostFull
    expr: node_filesystem_avail_bytes{fstype!~"tmpfs|overlay"} / node_filesystem_size_bytes < 0.1
    for: "5m"
    labels: {severity: warning, team: infra}
    annotations:
      summary: "{{ $labels.instance }} {{ $labels.mountpoint }} is under 10% free"
      runbook_url: https://runbooks.hexbloom.example/alerts/HostDiskAlmostFull
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-economy.yml' <<'AF_EOF'
# economy 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: economy-records
  rules:
  - record: job:http_requests:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service="store-api"}[5m]))
  - record: job:http_errors:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service="store-api",code=~"5.."}[5m]))
- name: store-api
  rules:
  # 5xx only; 429s are the rate limiter doing its job
  - alert: StoreApiHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="store-api",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="store-api"}[5m])) > 0.1
    for: "10m"
    labels: {severity: page, team: economy}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/StoreApiHighErrorRatio
  - alert: StoreApiLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="store-api"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: economy}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.hexbloom.example/alerts/StoreApiLatencyHigh
  - alert: StoreApiLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="store-api"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: economy}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.hexbloom.example/alerts/StoreApiLatencyHigh
  - alert: ReplicationLagHigh
    expr: max by (service) (pg_replication_lag_seconds{service="store-api"}) > 30
    for: "10m"
    labels: {severity: page, team: economy}
    annotations:
      summary: "{{ $labels.service }} replica is behind the primary"
      description: Replication lag is {{ $value | humanize }}s.
      runbook_url: https://runbooks.hexbloom.example/alerts/ReplicationLagHigh
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-matchmaking.yml' <<'AF_EOF'
# matchmaking 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: matchmaking-records
  rules:
  - record: job:grpc_calls:rate5m
    expr: sum by (job, service) (rate(grpc_server_handled_total{service="matchmaker"}[5m]))
  # keep: finance reads this one for the monthly availability report
  - record: job:grpc_errors:rate5m
    expr: sum by (job, service) (rate(grpc_server_handled_total{service="matchmaker",grpc_code=~"Unavailable|Internal|DeadlineExceeded|Unknown|DataLoss"}[5m]))
  - record: job:http_requests:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service=~"lobby-api|telemetry-ingest|lobby-worker"}[5m]))
  - record: job:http_errors:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service=~"lobby-api|telemetry-ingest|lobby-worker",code=~"5.."}[5m]))
- name: lobby-api
  rules:
  - alert: LobbyApiHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="lobby-api",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="lobby-api"}[5m])) > 0.1
    for: "10m"
    labels: {severity: page, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiHighErrorRatio
  - alert: LobbyApiLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="lobby-api"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiLatencyHigh
  - alert: LobbyApiLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="lobby-api"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiLatencyHigh
  - alert: LobbyApiDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="lobby-api"} / db_pool_connections_max{service="lobby-api"}) > 0.8
    for: "5m"
    labels: {severity: warning, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} is using over 80% of its DB pool"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiDbConnectionsHigh
  - alert: LobbyApiDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="lobby-api"} / db_pool_connections_max{service="lobby-api"}) > 0.95
    for: "5m"
    labels: {severity: critical, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} DB pool nearly exhausted"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiDbConnectionsHigh
- name: telemetry-ingest
  rules:
  # threshold agreed with matchmaking in LIVE-1375
  - alert: TelemetryIngestHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="telemetry-ingest",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="telemetry-ingest"}[5m])) > 0.02
    for: "10m"
    labels: {severity: page, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/TelemetryIngestHighErrorRatio
  - alert: TelemetryIngestQueueBacklogHigh
    expr: max by (service) (work_queue_depth{service="telemetry-ingest"}) > 5000
    for: "15m"
    labels: {severity: page, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} has more than 5000 jobs waiting"
      runbook_url: https://runbooks.hexbloom.example/alerts/TelemetryIngestQueueBacklogHigh
- name: matchmaker
  rules:
  # threshold agreed with matchmaking in LIVE-1798
  - alert: MatchmakerHighErrorRatio
    expr: sum by (service) (rate(grpc_server_handled_total{service="matchmaker",grpc_code=~"Unavailable|Internal|DeadlineExceeded|Unknown|DataLoss"}[5m])) / sum by (service) (rate(grpc_server_handled_total{service="matchmaker"}[5m])) > 0.1
    for: "10m"
    labels: {severity: page, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/MatchmakerHighErrorRatio
- name: lobby-worker
  rules:
  - alert: LobbyWorkerHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="lobby-worker",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="lobby-worker"}[5m])) > 0.1
    for: "10m"
    labels: {severity: page, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyWorkerHighErrorRatio
  - alert: LobbyWorkerDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="lobby-worker"} / db_pool_connections_max{service="lobby-worker"}) > 0.8
    for: "5m"
    labels: {severity: warning, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} is using over 80% of its DB pool"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyWorkerDbConnectionsHigh
  - alert: LobbyWorkerDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="lobby-worker"} / db_pool_connections_max{service="lobby-worker"}) > 0.95
    for: "5m"
    labels: {severity: critical, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} DB pool nearly exhausted"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyWorkerDbConnectionsHigh
  - alert: LobbyWorkerExportLate
    expr: time() - max by (service) (export_last_success_timestamp_seconds{service="lobby-worker"}) > 3 * 3600
    for: "30m"
    labels: {severity: ticket, team: matchmaking}
    annotations:
      summary: "{{ $labels.service }} hasn't finished an export in over 3 hours"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyWorkerExportLate
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-social.yml' <<'AF_EOF'
# social 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: social-records
  rules:
  - record: job:http_requests:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service=~"leaderboard-svc|chat-gw"}[5m]))
  - record: job:http_errors:rate5m
    expr: sum by (job, service) (rate(http_requests_total{service=~"leaderboard-svc|chat-gw",code=~"5.."}[5m]))
- name: leaderboard-svc
  rules:
  # threshold agreed with social in LIVE-1357
  - alert: LeaderboardSvcHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="leaderboard-svc",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="leaderboard-svc"}[5m])) > 0.1
    for: "10m"
    labels: {severity: page, team: social}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/LeaderboardSvcHighErrorRatio
  - alert: LeaderboardSvcLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="leaderboard-svc"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: social}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.hexbloom.example/alerts/LeaderboardSvcLatencyHigh
  - alert: LeaderboardSvcLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="leaderboard-svc"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: social}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.hexbloom.example/alerts/LeaderboardSvcLatencyHigh
  - alert: LeaderboardSvcDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="leaderboard-svc"} / db_pool_connections_max{service="leaderboard-svc"}) > 0.8
    for: "5m"
    labels: {severity: warning, team: social}
    annotations:
      summary: "{{ $labels.service }} is using over 80% of its DB pool"
      runbook_url: https://runbooks.hexbloom.example/alerts/LeaderboardSvcDbConnectionsHigh
  - alert: LeaderboardSvcDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="leaderboard-svc"} / db_pool_connections_max{service="leaderboard-svc"}) > 0.95
    for: "5m"
    labels: {severity: critical, team: social}
    annotations:
      summary: "{{ $labels.service }} DB pool nearly exhausted"
      runbook_url: https://runbooks.hexbloom.example/alerts/LeaderboardSvcDbConnectionsHigh
- name: chat-gw
  rules:
  - alert: ChatGwHighErrorRatio
    expr: sum by (service) (rate(http_requests_total{service="chat-gw",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="chat-gw"}[5m])) > 0.02
    for: "10m"
    labels: {severity: page, team: social}
    annotations:
      summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwHighErrorRatio
  - alert: ChatGwLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="chat-gw"}[5m]))) > 0.5
    for: "10m"
    labels: {severity: warning, team: social}
    annotations:
      summary: "{{ $labels.service }} p99 above 500ms"
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwLatencyHigh
  - alert: ChatGwLatencyHigh
    expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="chat-gw"}[5m]))) > 1
    for: "10m"
    labels: {severity: critical, team: social}
    annotations:
      summary: "{{ $labels.service }} p99 above 1s"
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwLatencyHigh
  - alert: ChatGwDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="chat-gw"} / db_pool_connections_max{service="chat-gw"}) > 0.8
    for: "5m"
    labels: {severity: warning, team: social}
    annotations:
      summary: "{{ $labels.service }} is using over 80% of its DB pool"
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwDbConnectionsHigh
  - alert: ChatGwDbConnectionsHigh
    expr: max by (service) (db_pool_connections_active{service="chat-gw"} / db_pool_connections_max{service="chat-gw"}) > 0.95
    for: "5m"
    labels: {severity: critical, team: social}
    annotations:
      summary: "{{ $labels.service }} DB pool nearly exhausted"
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwDbConnectionsHigh
  # average the pods: they all run with the same limit, so the mean is what we size it by
  - alert: ChatGwCpuThrottled
    expr: avg by (service) (rate(container_cpu_cfs_throttled_periods_total{service="chat-gw",container="chat-gw"}[5m]) / rate(container_cpu_cfs_periods_total{service="chat-gw",container="chat-gw"}[5m])) > 0.25
    for: "30m"
    labels: {severity: ticket, team: social}
    annotations:
      summary: "{{ $labels.service }} pods spend over a quarter of their CPU periods throttled"
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwCpuThrottled
AF_EOF
mkdir -p 'rules'
cat > 'rules/service-health.yml' <<'AF_EOF'
# One Down alert per service. See README, Service health.
groups:
- name: service-health
  rules:
  - alert: LobbyApiDown
    expr: |
      sum by (service) (up{service="lobby-api"}) == 0
      or absent(up{service="lobby-api"})
    for: 3m
    labels:
      severity: page
      team: matchmaking
    annotations:
      summary: lobby-api has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiDown
  - alert: LeaderboardSvcDown
    expr: |
      sum by (service) (up{service="leaderboard-svc"}) == 0
      or absent(up{service="leaderboard-svc"})
    for: 3m
    labels:
      severity: page
      team: social
    annotations:
      summary: leaderboard-svc has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/LeaderboardSvcDown
  - alert: TelemetryIngestDown
    expr: |
      sum by (service) (up{service="telemetry-ingest"}) == 0
      or absent(up{service="telemetry-ingest"})
    for: 3m
    labels:
      severity: page
      team: matchmaking
    annotations:
      summary: telemetry-ingest has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/TelemetryIngestDown
  - alert: MatchmakerDown
    expr: |
      sum by (service) (up{service="matchmaker"}) == 0
      or absent(up{service="matchmaker"})
    for: 3m
    labels:
      severity: page
      team: matchmaking
    annotations:
      summary: matchmaker has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/MatchmakerDown
  - alert: AssetIndexerDown
    expr: |
      sum by (service) (up{service="asset-indexer"}) == 0
      or absent(up{service="asset-indexer"})
    for: 3m
    labels:
      severity: page
      team: live-ops
    annotations:
      summary: asset-indexer has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/AssetIndexerDown
  - alert: ChatGwDown
    expr: |
      sum by (service) (up{service="chat-gw"}) == 0
      or absent(up{service="chat-gw"})
    for: 3m
    labels:
      severity: page
      team: social
    annotations:
      summary: chat-gw has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/ChatGwDown
  # for: 3m so a rolling restart doesn't page; store-api cycles one pod at a time
  - alert: StoreApiDown
    expr: |
      sum by (service) (up{service="store-api"}) == 0
      or absent(up{service="store-api"})
    for: 3m
    labels:
      severity: page
      team: economy
    annotations:
      summary: store-api has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/StoreApiDown
  - alert: LobbyWorkerDown
    expr: |
      sum by (service) (up{service="lobby-worker"}) == 0
      or absent(up{service="lobby-worker"})
    for: 3m
    labels:
      severity: page
      team: matchmaking
    annotations:
      summary: lobby-worker has no healthy scrape targets
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyWorkerDown
AF_EOF
mkdir -p 'rules'
cat > 'rules/slo-lobby-api.yml' <<'AF_EOF'
groups:
- name: slo-lobby-api
  rules:
  - alert: LobbyApiErrorBudgetBurnFast
    expr: |
      slo:sli_error:ratio_rate1h{service="lobby-api"} > (3.36 * 0.01)
      and slo:sli_error:ratio_rate5m{service="lobby-api"} > (3.36 * 0.01)
    for: 2m
    labels:
      severity: page
      team: matchmaking
      slo: lobby-api-availability
    annotations:
      summary: "{{ $labels.service }} is spending its error budget fast"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiErrorBudgetBurnFast
  - alert: LobbyApiErrorBudgetBurnSlow
    expr: |
      slo:sli_error:ratio_rate6h{service="lobby-api"} > (1.4 * 0.01)
      and slo:sli_error:ratio_rate30m{service="lobby-api"} > (1.4 * 0.01)
    for: 15m
    labels:
      severity: ticket
      team: matchmaking
      slo: lobby-api-availability
    annotations:
      summary: "{{ $labels.service }} is spending its error budget steadily"
      runbook_url: https://runbooks.hexbloom.example/alerts/LobbyApiErrorBudgetBurnSlow
AF_EOF