Elasticsearch

# Copyright 2022 Google LLC
#
# 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
#
#     https://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.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: elasticsearch-exporter
  labels:
    app.kubernetes.io/name: elasticsearch-exporter
spec:
  selector:
    matchLabels:
      app.kubernetes.io/name: elasticsearch-exporter
  template:
    metadata:
      labels:
        app.kubernetes.io/name: elasticsearch-exporter
    spec:
      containers:
      - name: exporter
        image: quay.io/prometheuscommunity/elasticsearch-exporter:v1.3.0
        args:
        - '--es.uri=https://user:password@elasticsearch-es-internal-http:9200'
        ports:
        - containerPort: 9114
          name: prometheus

# Copyright 2022 Google LLC
#
# 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
#
#     https://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.

apiVersion: monitoring.googleapis.com/v1
kind: PodMonitoring
metadata:
  name: elasticsearch
  labels:
    app.kubernetes.io/name: elasticsearch
    app.kubernetes.io/part-of: google-cloud-managed-prometheus
spec:
  endpoints:
  - port: prometheus
    scheme: http
    interval: 30s
    path: /metrics
  selector:
    matchLabels:
      app.kubernetes.io/name: elasticsearch-exporter

# Copyright 2022 Google LLC
#
# 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
#
#     https://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.

apiVersion: monitoring.googleapis.com/v1
kind: Rules
metadata:
  name: elasticsearch-rules
  labels:
    app.kubernetes.io/component: rules
    app.kubernetes.io/name: elasticsearch-rules
    app.kubernetes.io/part-of: google-cloud-managed-prometheus
spec:
  groups:
  - name: elasticsearch
    interval: 30s
    rules:
    - alert: ElasticsearchHighJVMMemoryUsage
      annotations:
        description: |-
          Elasticsearch high jvm memory usage
            VALUE = {{ $value }}
            LABELS: {{ $labels }}
        summary: Elasticsearch high jvm memory usage (instance {{ $labels.instance }})
      expr: (elasticsearch_jvm_memory_used_bytes / elasticsearch_jvm_memory_max_bytes) > 0.9
      for: 5m
      labels:
        severity: critical
    - alert: ElasticsearchRedClusterStatus
      annotations:
        description: |-
          Elasticsearch red cluster status
            VALUE = {{ $value }}
            LABELS: {{ $labels }}
        summary: Elasticsearch red cluster status (instance {{ $labels.instance }})
      expr: sum(elasticsearch_cluster_health_status{color="red"}) > 0
      for: 5m
      labels:
        severity: critical
    - alert: ElasticsearchYellowClusterStatus
      annotations:
        description: |-
          Elasticsearch yellow cluster status
            VALUE = {{ $value }}
            LABELS: {{ $labels }}
        summary: Elasticsearch yellow cluster status (instance {{ $labels.instance }})
      expr: sum(elasticsearch_cluster_health_status{color="yellow"}) > 0
      for: 5m
      labels:
        severity: warning