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#!/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
smtp_smarthost: smtp.fernhop.example:587
smtp_from: alertmanager@fernhop.example
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:
- service="fare-quotes-legacy"
receiver: slack-shopping
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-shopping
continue: true
- receiver: slack-shopping
- matchers:
- team="shopping"
receiver: slack-shopping
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-shopping
continue: true
- matchers:
- severity="ticket"
receiver: jira-shopping
continue: true
- receiver: slack-shopping
- matchers:
- team="loyalty"
receiver: slack-loyalty
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-loyalty
continue: true
- matchers:
- severity="ticket"
receiver: jira-loyalty
continue: true
- receiver: slack-loyalty
- matchers:
- team="inventory"
receiver: slack-inventory-oncall
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-inventory
continue: true
- matchers:
- severity="ticket"
receiver: jira-inventory
continue: true
- receiver: slack-inventory-oncall
- matchers:
- team="booking"
receiver: slack-booking
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-booking
continue: true
- matchers:
- severity="ticket"
receiver: jira-booking
continue: true
- receiver: slack-booking
# airport-ops: still on the old match syntax
- match:
team: airport-ops
receiver: slack-airport-ops
routes:
- receiver: pagerduty-airport-ops
continue: true
match:
severity: page|critical
- match:
severity: ticket
receiver: jira-airport-ops
continue: true
- receiver: slack-airport-ops
# shopping services from before team labels were everywhere
- matchers:
- service=~"fare-quotes|search-reindexer|hotel-indexer"
receiver: slack-shopping
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-shopping
continue: true
- receiver: slack-shopping
# teams below route alerts from the platform and data Prometheus servers
- 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
# data-platform asked for hourly repeats while something is still firing
- matchers:
- team="data-platform"
receiver: slack-data-platform
repeat_interval: 1h
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-data-platform
continue: true
- matchers:
- severity="ticket"
receiver: jira-data-platform
continue: true
- receiver: slack-data-platform
- 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
- matchers:
- team="network"
receiver: slack-network
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-network
continue: true
- matchers:
- severity="ticket"
receiver: jira-network
continue: true
- receiver: slack-network
# platform wanted tickets in Slack as well as Jira (PLAT-1269)
- matchers:
- team="platform"
receiver: slack-platform
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-platform
continue: true
- matchers:
- severity="ticket"
receiver: jira-platform
continue: true
- receiver: slack-platform
# build-infra: fewer updates per group, too chatty at 5m
- matchers:
- team="build-infra"
receiver: slack-build-infra
group_interval: 10m
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-build-infra
continue: true
- matchers:
- severity="ticket"
receiver: jira-build-infra
continue: true
# tickets and warnings per pod in Slack, so the channel shows which pod; pages group per service above
- receiver: slack-build-infra
group_by: [alertname, pod, service]
- matchers:
- team="partner-feeds"
receiver: slack-partner-feeds
routes:
- matchers:
- severity=~"page|critical"
receiver: pagerduty-partner-feeds
continue: true
- matchers:
- severity="ticket"
receiver: jira-partner-feeds
continue: true
- receiver: slack-partner-feeds
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-airport-ops
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/airport-ops
- name: slack-airport-ops
slack_configs:
- channel: "#airport-ops-alerts"
send_resolved: true
- name: jira-airport-ops
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/airport_ops
- name: pagerduty-booking
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/booking
- name: slack-booking
slack_configs:
- channel: "#booking-alerts"
send_resolved: true
- name: jira-booking
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/booking
- name: pagerduty-build-infra
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/build-infra
- name: slack-build-infra
slack_configs:
- channel: "#build-infra-alerts"
send_resolved: true
- name: jira-build-infra
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/build_infra
- name: pagerduty-data-platform
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/data-platform
- name: slack-data-platform
slack_configs:
- channel: "#data-platform-alerts"
send_resolved: true
- name: jira-data-platform
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/data_platform
- 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.fernhop.example/hooks/database_reliability
- 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.fernhop.example/hooks/edge
- name: pagerduty-inventory
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/inventory
- name: slack-inventory
slack_configs:
- channel: "#inventory-alerts"
send_resolved: true
- name: jira-inventory
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/inventory
- name: pagerduty-loyalty
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/loyalty
- name: slack-loyalty
slack_configs:
- channel: "#loyalty-alerts"
send_resolved: true
- name: jira-loyalty
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/loyalty
- name: pagerduty-network
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/network
- name: slack-network
slack_configs:
- channel: "#network-alerts"
send_resolved: true
- name: jira-network
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/network
- name: pagerduty-partner-feeds
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/partner-feeds
- name: slack-partner-feeds
slack_configs:
- channel: "#partner-feeds-alerts"
send_resolved: true
- name: jira-partner-feeds
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/partner_feeds
- 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.fernhop.example/hooks/platform
- name: pagerduty-shopping
pagerduty_configs:
- routing_key_file: /etc/alertmanager/secrets/pagerduty/shopping
- name: slack-shopping
slack_configs:
- channel: "#shopping-alerts"
send_resolved: true
- name: jira-shopping
webhook_configs:
- url: https://jira-bridge.fernhop.example/hooks/shopping
- 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.fernhop.example/hooks/storage
# unused since 2024, the SMTP relay it points at is gone
- name: email-oncall
email_configs:
- to: oncall@fernhop.example
send_resolved: false
- name: slack-inventory-oncall
slack_configs:
- channel: "#inventory-oncall"
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/capacity.yml' <<'AF_EOF'
# Capacity tickets. Pages for crashes come from the platform Prometheus.
groups:
- name: capacity
rules:
- alert: ContainerMemoryNearLimit
expr: |
max by (service) (container_memory_working_set_bytes{service="pnr-worker",container="pnr-worker"} / container_spec_memory_limit_bytes{service="pnr-worker",container="pnr-worker"}) > 0.9
for: 15m
labels:
severity: ticket
team: booking
annotations:
summary: "{{ $labels.service }} keeps running close to its memory limit"
runbook_url: https://runbooks.fernhop.example/alerts/ContainerMemoryNearLimit
- alert: ContainerMemoryNearLimit
expr: |
max by (service) (container_memory_working_set_bytes{service="hotel-indexer",container="hotel-indexer"} / container_spec_memory_limit_bytes{service="hotel-indexer",container="hotel-indexer"}) > 0.9
for: 15m
labels:
severity: ticket
team: partner-feeds
annotations:
summary: "{{ $labels.service }} keeps running close to its memory limit"
runbook_url: https://runbooks.fernhop.example/alerts/ContainerMemoryNearLimit
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-inventory.yml' <<'AF_EOF'
# inventory 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: inventory-records
rules:
- record: job:http_requests:rate5m
expr: sum by (job, service) (rate(http_requests_total{service="inventory-sync"}[5m]))
- record: job:http_errors:rate5m
expr: sum by (job, service) (rate(http_requests_total{service="inventory-sync",code=~"5.."}[5m]))
- name: inventory-sync
rules:
- alert: InventorySyncHighErrorRatio
expr: sum by (service) (rate(http_requests_total{service="inventory-sync",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="inventory-sync"}[5m])) > 0.1
for: "10m"
labels: {severity: page, team: inventory}
annotations:
summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
runbook_url: https://runbooks.fernhop.example/alerts/InventorySyncHighErrorRatio
# average over the targets: half of them gone is a ticket even while the rest carry the load
- alert: InventorySyncTargetsHalfDown
expr: avg by (service) (up{service="inventory-sync"}) < 0.5 and on (service) count by (service) (up{service="inventory-sync"}) >= 2
for: "10m"
labels: {severity: ticket, team: inventory}
annotations:
summary: "{{ $labels.service }} has lost half of its targets"
runbook_url: https://runbooks.fernhop.example/alerts/InventorySyncTargetsHalfDown
AF_EOF
mkdir -p 'rules'
cat > 'rules/legacy-loyalty.yml' <<'AF_EOF'
# loyalty 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: loyalty-records
rules:
- record: job:http_requests:rate5m
expr: sum by (job, service) (rate(http_requests_total{service="loyalty-points"}[5m]))
- record: job:http_errors:rate5m
expr: sum by (job, service) (rate(http_requests_total{service="loyalty-points",code=~"5.."}[5m]))
- name: loyalty-points
rules:
# threshold agreed with loyalty in PLAT-1277
- alert: LoyaltyPointsHighErrorRatio
expr: sum by (service) (rate(http_requests_total{service="loyalty-points",code=~"5.."}[5m])) / sum by (service) (rate(http_requests_total{service="loyalty-points"}[5m])) > 0.02
for: "10m"
labels: {severity: page, team: loyalty}
annotations:
summary: "{{ $labels.service }} is failing {{ $value | humanizePercentage }} of requests"
runbook_url: https://runbooks.fernhop.example/alerts/LoyaltyPointsHighErrorRatio
- alert: LoyaltyPointsLatencyHigh
expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="loyalty-points"}[5m]))) > 0.5
for: "10m"
labels: {severity: warning, team: loyalty}
annotations:
summary: "{{ $labels.service }} p99 above 500ms"
runbook_url: https://runbooks.fernhop.example/alerts/LoyaltyPointsLatencyHigh
- alert: LoyaltyPointsLatencyHigh
expr: histogram_quantile(0.99, sum by (service, le) (rate(http_request_duration_seconds_bucket{service="loyalty-points"}[5m]))) > 1
for: "10m"
labels: {severity: critical, team: loyalty}
annotations:
summary: "{{ $labels.service }} p99 above 1s"
runbook_url: https://runbooks.fernhop.example/alerts/LoyaltyPointsLatencyHigh
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: FareQuotesDown
expr: |
sum by (service) (up{service="fare-quotes"}) == 0
or absent(up{service="fare-quotes"})
for: 3m
labels:
severity: page
team: shopping
annotations:
summary: fare-quotes has no healthy scrape targets
runbook_url: https://runbooks.fernhop.example/alerts/FareQuotesDown
- alert: SearchReindexerDown
expr: |
sum by (service) (up{service="search-reindexer"}) == 0
or absent(up{service="search-reindexer"})
for: 3m
labels:
severity: page
team: shopping
annotations:
summary: search-reindexer has no healthy scrape targets
runbook_url: https://runbooks.fernhop.example/alerts/SearchReindexerDown
- alert: HotelIndexerDown
expr: |
sum by (service) (up{service="hotel-indexer"}) == 0
or absent(up{service="hotel-indexer"})
for: 3m
labels:
severity: page
team: partner-feeds
annotations:
summary: hotel-indexer has no healthy scrape targets
runbook_url: https://runbooks.fernhop.example/alerts/HotelIndexerDown
- alert: LoyaltyPointsDown
expr: |
sum by (service) (up{service="loyalty-points"}) == 0
or absent(up{service="loyalty-points"})
for: 3m
labels:
severity: page
team: loyalty
annotations:
summary: loyalty-points has no healthy scrape targets
runbook_url: https://runbooks.fernhop.example/alerts/LoyaltyPointsDown
- alert: InventorySyncDown
expr: |
sum by (service) (up{service="inventory-sync"}) == 0
or absent(up{service="inventory-sync"})
for: 3m
labels:
severity: page
team: inventory
annotations:
summary: inventory-sync has no healthy scrape targets
runbook_url: https://runbooks.fernhop.example/alerts/InventorySyncDown
AF_EOF
mkdir -p 'rules'
cat > 'rules/slo-loyalty-points.yml' <<'AF_EOF'
groups:
- name: slo-loyalty-points
rules:
- alert: LoyaltyPointsErrorBudgetBurnFast
expr: |
slo:sli_error:ratio_rate1h{service="loyalty-points"} > (14.4 * 0.005)
and slo:sli_error:ratio_rate5m{service="loyalty-points"} > (14.4 * 0.005)
for: 2m
labels:
severity: page
team: loyalty
slo: loyalty-points-availability
annotations:
summary: "{{ $labels.service }} is spending its error budget fast"
runbook_url: https://runbooks.fernhop.example/alerts/LoyaltyPointsErrorBudgetBurnFast
- alert: LoyaltyPointsErrorBudgetBurnSlow
expr: |
slo:sli_error:ratio_rate6h{service="loyalty-points"} > (6 * 0.005)
and slo:sli_error:ratio_rate30m{service="loyalty-points"} > (6 * 0.005)
for: 15m
labels:
severity: ticket
team: loyalty
slo: loyalty-points-availability
annotations:
summary: "{{ $labels.service }} is spending its error budget steadily"
runbook_url: https://runbooks.fernhop.example/alerts/LoyaltyPointsErrorBudgetBurnSlow
AF_EOF