groups:
- name: Node
  rules:
  - record: instance:node_cpus:count
    expr: count without(cpu, mode) (node_cpu{mode="idle"})
  - record: instance:node_cpus:count
    expr: count without(cpu, mode) (node_cpu_seconds_total{mode="idle"})
  - record: instance_cpu:node_cpu_seconds_not_idle:rate5m
    expr: sum without(mode) (rate(node_cpu{mode!="idle"}[5m]))
  - record: instance_cpu:node_cpu_seconds_not_idle:rate5m
    expr: sum without(mode) (rate(node_cpu_seconds_total{mode!="idle"}[5m]))
  - record: instance_mode:node_cpu_seconds:rate5m
    expr: sum without(cpu) (rate(node_cpu[5m]))
  - record: instance_mode:node_cpu_seconds:rate5m
    expr: sum without(cpu) (rate(node_cpu_seconds_total[5m]))
  - record: instance:node_cpu_utilization:ratio
    expr: sum without(mode) (instance_mode:node_cpu_seconds:rate5m{mode!="idle"})
      / instance:node_cpus:count
  - record: instance:node_memory_utilization:ratio
    expr: >
      1 - (
        node_memory_MemAvailable_bytes or
         (node_memory_MemFree_bytes + node_memory_Buffers_bytes + node_memory_Cached_bytes)
      ) / node_memory_MemTotal_bytes
  - record: instance:node_filesystem_avail:ratio
    expr: node_filesystem_avail_bytes / (node_filesystem_size_bytes > 0)
  - alert: FilesystemAlmostFull
    expr: instance:node_filesystem_avail:ratio * 100 < 5 and node_filesystem_avail_bytes < 10 * 1024 * 1024 * 1024
    for: 10m
    annotations:
      description: The filesystem {{ $labels.device }}:{{ $labels.mountpoint }} on
        {{ $labels.instance }} has {{ $value | printf "%.2f" }}% space available.
      summary: The filesystem {{ $labels.device }}:{{ $labels.mountpoint }} is almost
        full
  - alert: FilesystemFullIn1Day
    expr: predict_linear(node_filesystem_avail_bytes[6h], 24 * 3600) < 0
    for: 30m
    annotations:
      description: The filesystem {{ $labels.device }}:{{ $labels.mountpoint }} on
        {{ $labels.instance }} will be full in the next 24 hours.
      summary: The filesystem {{ $labels.device }}:{{ $labels.mountpoint }} will be
        full within 24 hours