groups:
  - name: node-alert
    rules:
      - alert: ob_host_disk_percent_over_threshold
        expr: 100 * (1 - node_filesystem_avail_bytes / node_filesystem_size_bytes) > 97
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} {{ $labels.mountpoint }} used percent over threshold "
          description: "{{ $labels.instance }} {{ $labels.mountpoint }} used percent > {{ $value }}"

      - alert: ob_host_cpu_percent
        expr: 100 * (1 - sum(rate(node_cpu_seconds_total{mode="idle"}[60s])) by (instance) / sum(rate(node_cpu_seconds_total[60s])) by (instance)) > 100
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} cpu used percent over threshold "
          description: "{{ $labels.instance }} cpu_percent > {{ $value }}"

      - alert: ob_host_net_recv_percent_over_threshold
        expr: rate(node_network_receive_bytes_total[60s]) > 100000000
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} net recv percent over threshold "
          description: "{{ $labels.instance }} net_recv_percent > {{ $value }}"

      - alert: ob_host_net_send_percent_over_threshold
        expr: rate(node_network_transmit_bytes_total[60s]) > 100000000
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} net send percent over threshold "
          description: "{{ $labels.instance }} net_send_percent > {{ $value }}"

      - alert: ob_host_load1_per_cpu_over_threshold
        expr: node_load1 > 64
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} load1 over threshold "
          description: "{{ $labels.instance }} load1 > {{ $value }}"

      - alert: ob_host_mem_percent_over_threshold
        expr: (1 - (node_memory_MemFree_bytes + node_memory_Cached_bytes + node_memory_Buffers_bytes) / node_memory_MemTotal_bytes) * 100 > 90
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} memory used percent over threshold "
          description: "{{ $labels.instance }} memory_used_percent > {{ $value }}"

      - alert: ob_host_disk_readonly
        expr: node_filesystem_readonly > 0
        for: 1m
        labels:
          serverity: page
        annotations:
          summary: "{{ $labels.instance }} {{ $labels.mountpoint }} is readonly "
          description: "{{ $labels.instance }} {{ $labels.mountpoint }} is readonly"