# Prometheus main config — cast04 (10.7.16.239)
# Track A monitoring SPEC: ac-docs/specs/20260626_cluster_monitoring.md
# Updated: 2026-06-28 — mysqld targets moved to cast01/02/03 cluster

global:
  scrape_interval:     15s
  evaluation_interval: 15s
  external_labels:
    cluster: 'ac-cluster0'
    monitor: 'cast04'

rule_files:
  - "/etc/prometheus/rules/*.yml"

alerting:
  alertmanagers:
    - static_configs:
        - targets: ['localhost:9093']

scrape_configs:

  # ── node_exporter on all cluster nodes ──────────────────────────────────────
  - job_name: 'node'
    static_configs:
      - targets:
          - '10.7.16.236:9100'   # cast01
          - '10.7.16.237:9100'   # cast02
          - '10.7.16.238:9100'   # cast03
          - '10.7.16.239:9100'   # cast04 (self)
          - '10.7.16.128:9100'   # artc0 (legacy, monitoring only)
        labels:
          env: 'production'
    relabel_configs:
      - source_labels: [__address__]
        regex: '(10\.7\.16\.236):.*'
        target_label: instance
        replacement: 'cast01'
      - source_labels: [__address__]
        regex: '(10\.7\.16\.237):.*'
        target_label: instance
        replacement: 'cast02'
      - source_labels: [__address__]
        regex: '(10\.7\.16\.238):.*'
        target_label: instance
        replacement: 'cast03'
      - source_labels: [__address__]
        regex: '(10\.7\.16\.239):.*'
        target_label: instance
        replacement: 'cast04'
      - source_labels: [__address__]
        regex: '(10\.7\.16\.128):.*'
        target_label: instance
        replacement: 'artc0'

  # ── blackbox_exporter — HTTP probes ─────────────────────────────────────────
  - job_name: 'blackbox_http'
    metrics_path: /probe
    params:
      module: [http_2xx]
    static_configs:
      - targets:
          - 'http://10.7.16.236/app/androidcast_project/'          # BE main app (cast01)
          - 'http://10.7.16.236/app/androidcast_project/issues/'   # crash reporter
          - 'http://10.7.16.239:3000/api/health'                   # Grafana health
          - 'https://apps.f0xx.org/app/androidcast_project/'       # external FE probe
        labels:
          env: 'production'
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - target_label: __address__
        replacement: 'localhost:9115'

  # ── MariaDB exporter — cast01 (primary) ────────────────────────────────────
  - job_name: 'mysqld'
    static_configs:
      - targets: ['10.7.16.236:9104']
        labels:
          instance: 'cast01-mariadb'

  # ── PostgreSQL exporter (cast01) ─────────────────────────────────────────────
  - job_name: 'postgres'
    static_configs:
      - targets: ['10.7.16.236:9187']
        labels:
          instance: 'cast01-postgres'

  # ── prometheus self-scrape ───────────────────────────────────────────────────
  - job_name: 'prometheus'
    static_configs:
      - targets: ['localhost:9090']
        labels:
          instance: 'cast04-prometheus'

  # ── alertmanager self-scrape ─────────────────────────────────────────────────
  - job_name: 'alertmanager'
    static_configs:
      - targets: ['localhost:9093']
        labels:
          instance: 'cast04-alertmanager'