# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Default values for node-exporter.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.

---
images:
  tags:
    node_problem_detector: docker.io/openstackhelm/node-problem-detector:latest-ubuntu_bionic
    dep_check: quay.io/airshipit/kubernetes-entrypoint:v1.0.0
    image_repo_sync: docker.io/library/docker:17.07.0
  pull_policy: IfNotPresent
  local_registry:
    active: false
    exclude:
      - dep_check
      - image_repo_sync

labels:
  node_problem_detector:
    node_selector_key: openstack-control-plane
    node_selector_value: enabled
  job:
    node_selector_key: openstack-control-plane
    node_selector_value: enabled

pod:
  security_context:
    node_problem_detector:
      pod:
        runAsUser: 0
      container:
        node_problem_detector:
          readOnlyRootFilesystem: true
          privileged: true
  affinity:
    anti:
      type:
        default: preferredDuringSchedulingIgnoredDuringExecution
      topologyKey:
        default: kubernetes.io/hostname
  mounts:
    node_problem_detector:
      node_problem_detector:
      init_container: null
  lifecycle:
    upgrades:
      daemonsets:
        pod_replacement_strategy: RollingUpdate
        node_problem_detector:
          enabled: true
          min_ready_seconds: 0
      revision_history: 3
      pod_replacement_strategy: RollingUpdate
      rolling_update:
        max_unavailable: 1
        max_surge: 3
    termination_grace_period:
      node_problem_detector:
        timeout: 30
  resources:
    enabled: false
    node_problem_detector:
      requests:
        memory: "128Mi"
        cpu: "100m"
      limits:
        memory: "1024Mi"
        cpu: "2000m"
    jobs:
      image_repo_sync:
        requests:
          memory: "128Mi"
          cpu: "100m"
        limits:
          memory: "1024Mi"
          cpu: "2000m"
  tolerations:
    node_problem_detector:
      enabled: false
      tolerations:
      - key: node-role.kubernetes.io/master
        operator: Exists
      - key: node-role.kubernetes.io/node
        operator: Exists
dependencies:
  dynamic:
    common:
      local_image_registry:
        jobs:
          - node-exporter-image-repo-sync
        services:
          - endpoint: node
            service: local_image_registry
  static:
    image_repo_sync:
      services:
        - endpoint: internal
          service: local_image_registry
    node_problem_detector:
      services: null

monitoring:
  prometheus:
    pod:
      enabled: true
    service:
      enabled: false
    node_problem_detector:
      scrape: true
      port: 20257

endpoints:
  cluster_domain_suffix: cluster.local
  local_image_registry:
    name: docker-registry
    namespace: docker-registry
    hosts:
      default: localhost
      internal: docker-registry
      node: localhost
    host_fqdn_override:
      default: null
    port:
      registry:
        node: 5000
  node_problem_detector:
    name: node-problem-detector
    namespace: null
    hosts:
      default: node-problem-detector
    host_fqdn_override:
      default: null
    path:
      default: null
    port:
      metrics:
        default: 20257

manifests:
  configmap_bin: true
  configmap_etc: true
  daemonset: true
  job_image_repo_sync: true
  service: false

conf:
  monitors:
    system-log-monitor:
      enabled:
        - /config/kernel-monitor.json
        - /config/docker-monitor.json
        - /config/systemd-monitor.json
      scripts:
        enabled: null
        source: null
      config:
        kernel-monitor:
          plugin: kmsg
          logPath: "/dev/kmsg"
          lookback: 5m
          bufferSize: 10
          source: kernel-monitor
          conditions:
          - type: KernelDeadlock
            reason: KernelHasNoDeadlock
            message: kernel has no deadlock
          - type: ReadonlyFilesystem
            reason: FilesystemIsNotReadOnly
            message: Filesystem is not read-only
          rules:
          - type: temporary
            reason: OOMKilling
            pattern: Kill process \d+ (.+) score \d+ or sacrifice child\nKilled process \d+
              (.+) total-vm:\d+kB, anon-rss:\d+kB, file-rss:\d+kB.*
          - type: temporary
            reason: TaskHung
            pattern: task \S+:\w+ blocked for more than \w+ seconds\.
          - type: temporary
            reason: UnregisterNetDevice
            pattern: 'unregister_netdevice: waiting for \w+ to become free. Usage count = \d+'
          - type: temporary
            reason: KernelOops
            pattern: 'BUG: unable to handle kernel NULL pointer dereference at .*'
          - type: temporary
            reason: KernelOops
            pattern: 'divide error: 0000 \[#\d+\] SMP'
          - type: permanent
            condition: KernelDeadlock
            reason: AUFSUmountHung
            pattern: task umount\.aufs:\w+ blocked for more than \w+ seconds\.
          - type: permanent
            condition: KernelDeadlock
            reason: DockerHung
            pattern: task docker:\w+ blocked for more than \w+ seconds\.
          - type: permanent
            condition: ReadonlyFilesystem
            reason: FilesystemIsReadOnly
            pattern: Remounting filesystem read-only
        kernel-monitor-filelog:
          plugin: filelog
          pluginConfig:
            timestamp: "^.{15}"
            message: 'kernel: \[.*\] (.*)'
            timestampFormat: Jan _2 15:04:05
          logPath: "/var/log/kern.log"
          lookback: 5m
          bufferSize: 10
          source: kernel-monitor
          conditions:
          - type: KernelDeadlock
            reason: KernelHasNoDeadlock
            message: kernel has no deadlock
          rules:
          - type: temporary
            reason: OOMKilling
            pattern: Kill process \d+ (.+) score \d+ or sacrifice child\nKilled process \d+
              (.+) total-vm:\d+kB, anon-rss:\d+kB, file-rss:\d+kB.*
          - type: temporary
            reason: TaskHung
            pattern: task \S+:\w+ blocked for more than \w+ seconds\.
          - type: temporary
            reason: UnregisterNetDevice
            pattern: 'unregister_netdevice: waiting for \w+ to become free. Usage count = \d+'
          - type: temporary
            reason: KernelOops
            pattern: 'BUG: unable to handle kernel NULL pointer dereference at .*'
          - type: temporary
            reason: KernelOops
            pattern: 'divide error: 0000 \[#\d+\] SMP'
          - type: permanent
            condition: KernelDeadlock
            reason: AUFSUmountHung
            pattern: task umount\.aufs:\w+ blocked for more than \w+ seconds\.
          - type: permanent
            condition: KernelDeadlock
            reason: DockerHung
            pattern: task docker:\w+ blocked for more than \w+ seconds\.
        kernel-monitor-counter:
          plugin: custom
          pluginConfig:
            invoke_interval: 5m
            timeout: 1m
            max_output_length: 80
            concurrency: 1
          source: kernel-monitor
          conditions:
          - type: FrequentUnregisterNetDevice
            reason: NoFrequentUnregisterNetDevice
            message: node is functioning properly
          rules:
          - type: permanent
            condition: FrequentUnregisterNetDevice
            reason: UnregisterNetDevice
            path: "/home/kubernetes/bin/log-counter"
            args:
            - "--journald-source=kernel"
            - "--log-path=/var/log/journal"
            - "--lookback=20m"
            - "--count=3"
            - "--pattern=unregister_netdevice: waiting for \\w+ to become free. Usage count
              = \\d+"
            timeout: 1m
        docker-monitor:
          plugin: journald
          pluginConfig:
            source: dockerd
          logPath: "/var/log/journal"
          lookback: 5m
          bufferSize: 10
          source: docker-monitor
          conditions: []
          rules:
          - type: temporary
            reason: CorruptDockerImage
            pattern: 'Error trying v2 registry: failed to register layer: rename /var/lib/docker/image/(.+)
              /var/lib/docker/image/(.+): directory not empty.*'
        docker-monitor-filelog:
          plugin: filelog
          pluginConfig:
            timestamp: ^time="(\S*)"
            message: |-
              msg="([^
              ]*)"
            timestampFormat: '2006-01-02T15:04:05.999999999-07:00'
          logPath: "/var/log/docker.log"
          lookback: 5m
          bufferSize: 10
          source: docker-monitor
          conditions: []
          rules:
          - type: temporary
            reason: CorruptDockerImage
            pattern: 'Error trying v2 registry: failed to register layer: rename /var/lib/docker/image/(.+)
              /var/lib/docker/image/(.+): directory not empty.*'
        docker-monitor-counter:
          plugin: custom
          pluginConfig:
            invoke_interval: 5m
            timeout: 1m
            max_output_length: 80
            concurrency: 1
          source: docker-monitor
          conditions:
          - type: CorruptDockerOverlay2
            reason: NoCorruptDockerOverlay2
            message: docker overlay2 is functioning properly
          rules:
          - type: permanent
            condition: CorruptDockerOverlay2
            reason: CorruptDockerOverlay2
            path: "/home/kubernetes/bin/log-counter"
            args:
            - "--journald-source=dockerd"
            - "--log-path=/var/log/journal"
            - "--lookback=5m"
            - "--count=10"
            - "--pattern=returned error: readlink /var/lib/docker/overlay2.*: invalid argument.*"
            timeout: 1m
        systemd-monitor:
          plugin: journald
          pluginConfig:
            source: systemd
          logPath: "/var/log/journal"
          lookback: 5m
          bufferSize: 10
          source: systemd-monitor
          conditions: []
          rules:
          - type: temporary
            reason: KubeletStart
            pattern: Started Kubernetes kubelet.
          - type: temporary
            reason: DockerStart
            pattern: Starting Docker Application Container Engine...
          - type: temporary
            reason: ContainerdStart
            pattern: Starting containerd container runtime...
        systemd-monitor-counter:
          plugin: custom
          pluginConfig:
            invoke_interval: 5m
            timeout: 1m
            max_output_length: 80
            concurrency: 1
          source: systemd-monitor
          conditions:
          - type: FrequentKubeletRestart
            reason: NoFrequentKubeletRestart
            message: kubelet is functioning properly
          - type: FrequentDockerRestart
            reason: NoFrequentDockerRestart
            message: docker is functioning properly
          - type: FrequentContainerdRestart
            reason: NoFrequentContainerdRestart
            message: containerd is functioning properly
          rules:
          - type: permanent
            condition: FrequentKubeletRestart
            reason: FrequentKubeletRestart
            path: "/home/kubernetes/bin/log-counter"
            args:
            - "--journald-source=systemd"
            - "--log-path=/var/log/journal"
            - "--lookback=20m"
            - "--delay=5m"
            - "--count=5"
            - "--pattern=Started Kubernetes kubelet."
            timeout: 1m
          - type: permanent
            condition: FrequentDockerRestart
            reason: FrequentDockerRestart
            path: "/home/kubernetes/bin/log-counter"
            args:
            - "--journald-source=systemd"
            - "--log-path=/var/log/journal"
            - "--lookback=20m"
            - "--count=5"
            - "--pattern=Starting Docker Application Container Engine..."
            timeout: 1m
          - type: permanent
            condition: FrequentContainerdRestart
            reason: FrequentContainerdRestart
            path: "/home/kubernetes/bin/log-counter"
            args:
            - "--journald-source=systemd"
            - "--log-path=/var/log/journal"
            - "--lookback=20m"
            - "--count=5"
            - "--pattern=Starting containerd container runtime..."
            timeout: 1m
    custom-plugin-monitor:
      enabled:
        - /config/network-problem-monitor.json
      scripts:
        enabled:
          - network_problem.sh
        source:
          network_problem.sh: |
            #!/bin/bash

            # This plugin checks for common network issues. Currently, it only checks
            # if the conntrack table is 50% full.
            set -eu
            set -o pipefail

            conntrack_threshold=$(($(cat /proc/sys/net/netfilter/nf_conntrack_max)/2 ))
            conntrack_count=$(cat /proc/sys/net/netfilter/nf_conntrack_count)

            if [ "$conntrack_count" -ge "$conntrack_threshold" ]; then
              echo "Conntrack table approaching full"
              exit 1
            fi

            exit 0
      config:
        network-problem-monitor:
          plugin: custom
          pluginConfig:
            invoke_interval: 30s
            timeout: 5s
            max_output_length: 80
            concurrency: 3
          source: network-custom-plugin-monitor
          conditions: []
          rules:
          - type: temporary
            reason: ConntrackFull
            path: "./config/plugin/network_problem.sh"
            timeout: 3s
    system-stats-monitor:
      enabled:
        - /config/system-stats-monitor.json
      scripts:
        enabled: null
        source: null
      config:
        system-stats-monitor:
          disk:
            metricsConfigs:
              disk/io_time:
                displayName: disk/io_time
              disk/weighted_io:
                displayName: disk/weighted_io
              disk/avg_queue_len:
                displayName: disk/avg_queue_len
            includeRootBlk: true
            includeAllAttachedBlk: true
            lsblkTimeout: 5s
          invokeInterval: 60s
...