installers/helm/osm/templates/prometheus/prometheus-statefulset.yaml

{{- if .Values.prometheus.enabled -}}
#######################################################################################
# Copyright ETSI Contributors and Others.
#
# 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.
#######################################################################################
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: prometheus
  labels:
    {{- include "osm.labels" . | nindent 4 }}
spec:
  replicas: {{ .Values.prometheus.replicaCount | default .Values.global.replicaCount }}
  serviceName: prometheus
  selector:
    matchLabels:
      app.kubernetes.io/component: prometheus
      {{- include "osm.selectorLabels" . | nindent 6 }}
  template:
    metadata:
      {{- with .Values.global.podAnnotations }}
      annotations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      labels:
        app.kubernetes.io/component: prometheus
        {{- include "osm.selectorLabels" . | nindent 8 }}
    spec:
      {{- with .Values.global.imagePullSecrets }}
      imagePullSecrets:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      serviceAccountName: {{ include "osm.serviceAccountName" . }}
      initContainers:
        - name: prometheus-init-config
          image: busybox
          command: ["/bin/sh", "-c"]
{{- if .Values.global.oldServiceAssurance }}
          args: ['if [ ! -f "/etc/prometheus/prometheus.yml" ]; then cp /config/prometheus.yml /etc/prometheus; fi']
{{- else }}
          args: ['if [ ! -f "/etc/prometheus/prometheus.yml" ]; then cp /config/prometheus.yml /etc/prometheus; fi; cp /config/osm_metric_rules.yml /config/osm_alert_rules.yml /etc/prometheus']
{{- end }}
          volumeMounts:
            - name: prom-config
              mountPath: /etc/prometheus
            - name: prom-config-base
              mountPath: /config
      containers:
        - name: prometheus
          securityContext:
            # readOnlyRootFilesystem: true
            allowPrivilegeEscalation: false
            # runAsNonRoot: true
          image: prom/prometheus:v2.47.0
          imagePullPolicy: {{ .Values.global.image.pullPolicy }}
          args:
            - --config.file=/etc/prometheus/prometheus.yml
            - --web.enable-lifecycle
          ports:
            - containerPort: 9090
              protocol: TCP
          volumeMounts:
            - name: prom-config
              mountPath: /etc/prometheus
            - name: prom-db
              mountPath: /prometheus
          resources:
            limits:
              memory: 1024Mi
            requests:
              memory: 128Mi
        - name: prometheus-config-sidecar
          securityContext:
            # readOnlyRootFilesystem: true
            allowPrivilegeEscalation: false
            # runAsNonRoot: true
          image: {{ include "osm.prometheus.image" . }}
          imagePullPolicy: {{ .Values.global.image.pullPolicy }}
          volumeMounts:
            - name: prom-config
              mountPath: /etc/prometheus
            - name: prom-config-base
              mountPath: /etc/prometheus_base
          resources:
            limits:
              memory: 1024Mi
            requests:
              memory: 128Mi
          envFrom:
            - configMapRef:
                name: {{ include "osm.fullname" . }}-prometheus-configmap
      {{- with .Values.global.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.global.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.global.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      volumes:
        - name: prom-db
          emptyDir: {}
        - name: prom-config
          emptyDir: {}
        - name: prom-config-base
          projected:
            sources:
              - configMap:
                 name: {{ include "osm.fullname" . }}-prometheus-prom-configmap
                 items:
                   - key: prometheus.yml
                     path: prometheus.yml
{{- if not .Values.global.oldServiceAssurance }}
              - configMap:
                 name: {{ include "osm.fullname" . }}-prometheus-recordingrules-configmap
                 items:
                   - key: osm_metric_rules.yml
                     path: osm_metric_rules.yml
              - configMap:
                 name: {{ include "osm.fullname" . }}-prometheus-alertingrules-configmap
                 items:
                   - key: osm_alert_rules.yml
                     path: osm_alert_rules.yml
{{- end }}
{{- end }}