groups:
  - name: cmpp-managed-thresholds
    rules:
      - alert: HostCpuUsageWarning
        expr: (100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 80) and (100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) <= 90)
        for: 10m
        labels: { severity: warning, service: host }
        annotations: { summary: "主机 CPU 使用率达到警告阈值", description: "主机 CPU 使用率持续超过80%。", currentValue: "{{ $value }}", threshold: "80%" }
      - alert: HostCpuUsageCritical
        expr: 100 - (avg by (instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100) > 90
        for: 5m
        labels: { severity: critical, service: host }
        annotations: { summary: "主机 CPU 使用率达到严重阈值", description: "主机 CPU 使用率持续超过90%。", currentValue: "{{ $value }}", threshold: "90%" }
      - alert: HostMemoryUsageWarning
        expr: ((1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100 > 85) and ((1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100 <= 95)
        for: 10m
        labels: { severity: warning, service: host }
        annotations: { summary: "主机内存使用率达到警告阈值", description: "主机内存使用率持续超过85%。", currentValue: "{{ $value }}", threshold: "85%" }
      - alert: HostMemoryUsageCritical
        expr: (1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100 > 95
        for: 5m
        labels: { severity: critical, service: host }
        annotations: { summary: "主机内存使用率达到严重阈值", description: "主机内存使用率持续超过95%。", currentValue: "{{ $value }}", threshold: "95%" }
      - alert: HostRootDiskUsageWarning
        expr: ((1 - node_filesystem_avail_bytes{mountpoint="/",fstype!~"tmpfs|overlay|squashfs"} / node_filesystem_size_bytes{mountpoint="/",fstype!~"tmpfs|overlay|squashfs"}) * 100 > 80) and ((1 - node_filesystem_avail_bytes{mountpoint="/",fstype!~"tmpfs|overlay|squashfs"} / node_filesystem_size_bytes{mountpoint="/",fstype!~"tmpfs|overlay|squashfs"}) * 100 <= 90)
        for: 15m
        labels: { severity: warning, service: host }
        annotations: { summary: "根磁盘使用率达到警告阈值", description: "根磁盘使用率持续超过80%。", currentValue: "{{ $value }}", threshold: "80%" }
      - alert: HostRootDiskUsageCritical
        expr: (1 - node_filesystem_avail_bytes{mountpoint="/",fstype!~"tmpfs|overlay|squashfs"} / node_filesystem_size_bytes{mountpoint="/",fstype!~"tmpfs|overlay|squashfs"}) * 100 > 90
        for: 5m
        labels: { severity: critical, service: host }
        annotations: { summary: "根磁盘使用率达到严重阈值", description: "根磁盘使用率持续超过90%。", currentValue: "{{ $value }}", threshold: "90%" }
      - alert: CmppApiHttpErrorRateWarning
        expr: (100 * sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001) > 1) and (100 * sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001) <= 5) and (sum(increase(cmpp_api_http_requests_total{status=~"5.."}[5m])) >= 5)
        for: 5m
        labels: { severity: warning, service: api }
        annotations: { summary: "API 5xx 错误率达到警告阈值", description: "API 5xx 错误率持续超过1%。", currentValue: "{{ $value }}", threshold: "1%" }
      - alert: CmppApiHttpErrorRateCritical
        expr: (100 * sum(rate(cmpp_api_http_requests_total{status=~"5.."}[5m])) / clamp_min(sum(rate(cmpp_api_http_requests_total[5m])), 0.001) > 5) and (sum(increase(cmpp_api_http_requests_total{status=~"5.."}[5m])) >= 5)
        for: 5m
        labels: { severity: critical, service: api }
        annotations: { summary: "API 5xx 错误率达到严重阈值", description: "API 5xx 错误率持续超过5%。", currentValue: "{{ $value }}", threshold: "5%" }
      - alert: CmppApiLatencyWarning
        expr: (histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[10m]))) > 1) and (histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[10m]))) <= 3)
        for: 10m
        labels: { severity: warning, service: api }
        annotations: { summary: "API P95 响应时间达到警告阈值", description: "API P95 响应时间持续超过1秒。", currentValue: "{{ $value }}", threshold: "1秒" }
      - alert: CmppApiLatencyCritical
        expr: histogram_quantile(0.95, sum by (le) (rate(cmpp_api_http_request_duration_seconds_bucket[10m]))) > 3
        for: 5m
        labels: { severity: critical, service: api }
        annotations: { summary: "API P95 响应时间达到严重阈值", description: "API P95 响应时间持续超过3秒。", currentValue: "{{ $value }}", threshold: "3秒" }
      - alert: CmppApiEventLoopLagWarning
        expr: (cmpp_api_nodejs_event_loop_lag_p99_seconds > 0.2) and (cmpp_api_nodejs_event_loop_lag_p99_seconds <= 1)
        for: 10m
        labels: { severity: warning, service: api }
        annotations: { summary: "API 事件循环 P99 达到警告阈值", description: "API 事件循环 P99 持续超过0.2秒。", currentValue: "{{ $value }}", threshold: "0.2秒" }
      - alert: CmppApiEventLoopLagCritical
        expr: cmpp_api_nodejs_event_loop_lag_p99_seconds > 1
        for: 5m
        labels: { severity: critical, service: api }
        annotations: { summary: "API 事件循环 P99 达到严重阈值", description: "API 事件循环 P99 持续超过1秒。", currentValue: "{{ $value }}", threshold: "1秒" }
      - alert: CmppGatewayQueueDelayedWarning
        expr: (cmpp_gateway_submit_queue_oldest_pending_age_seconds > 30) and (cmpp_gateway_submit_queue_oldest_pending_age_seconds <= 120)
        for: 2m
        labels: { severity: warning, service: gateway }
        annotations: { summary: "Gateway 最旧 pending 达到警告阈值", description: "Gateway 最旧 pending 持续超过30秒。", currentValue: "{{ $value }}", threshold: "30秒" }
      - alert: CmppGatewayQueueDelayedCritical
        expr: cmpp_gateway_submit_queue_oldest_pending_age_seconds > 120
        for: 2m
        labels: { severity: critical, service: gateway }
        annotations: { summary: "Gateway 最旧 pending 达到严重阈值", description: "Gateway 最旧 pending 持续超过120秒。", currentValue: "{{ $value }}", threshold: "120秒" }
      - alert: PostgresConnectionsWarning
        expr: (100 * sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1) > 70) and (100 * sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1) <= 85)
        for: 10m
        labels: { severity: warning, service: postgresql }
        annotations: { summary: "PostgreSQL 连接使用率达到警告阈值", description: "PostgreSQL 连接使用率持续超过70%。", currentValue: "{{ $value }}", threshold: "70%" }
      - alert: PostgresConnectionsCritical
        expr: 100 * sum(pg_stat_activity_count) / clamp_min(max(pg_settings_max_connections), 1) > 85
        for: 5m
        labels: { severity: critical, service: postgresql }
        annotations: { summary: "PostgreSQL 连接使用率达到严重阈值", description: "PostgreSQL 连接使用率持续超过85%。", currentValue: "{{ $value }}", threshold: "85%" }
      - alert: RedisMemoryWarning
        expr: (100 * redis_memory_used_bytes / redis_memory_max_bytes > 70) and (100 * redis_memory_used_bytes / redis_memory_max_bytes <= 85) and (redis_memory_max_bytes > 0)
        for: 10m
        labels: { severity: warning, service: redis }
        annotations: { summary: "Redis 内存使用率达到警告阈值", description: "Redis 内存使用率持续超过70%。", currentValue: "{{ $value }}", threshold: "70%" }
      - alert: RedisMemoryCritical
        expr: (100 * redis_memory_used_bytes / redis_memory_max_bytes > 85) and (redis_memory_max_bytes > 0)
        for: 5m
        labels: { severity: critical, service: redis }
        annotations: { summary: "Redis 内存使用率达到严重阈值", description: "Redis 内存使用率持续超过85%。", currentValue: "{{ $value }}", threshold: "85%" }
      - alert: MinioCapacityWarning
        expr: (100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes) > 80) and (100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes) <= 90)
        for: 15m
        labels: { severity: warning, service: minio }
        annotations: { summary: "MinIO 容量使用率达到警告阈值", description: "MinIO 容量使用率持续超过80%。", currentValue: "{{ $value }}", threshold: "80%" }
      - alert: MinioCapacityCritical
        expr: 100 * (1 - minio_cluster_capacity_usable_free_bytes / minio_cluster_capacity_usable_total_bytes) > 90
        for: 5m
        labels: { severity: critical, service: minio }
        annotations: { summary: "MinIO 容量使用率达到严重阈值", description: "MinIO 容量使用率持续超过90%。", currentValue: "{{ $value }}", threshold: "90%" }