# helm_charts_meta-statefulset.yaml
{{- if .Values.enterprise.enabled }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "influxdb.fullname" . }}-meta
  labels:
    {{- include "influxdb.labels" . | nindent 4 }}
    app.kubernetes.io/component: meta
spec:
  replicas: {{ .Values.enterprise.meta.clusterSize }}
  selector:
    matchLabels:
      {{- include "influxdb.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: meta
  serviceName: "{{ include "influxdb.fullname" . }}-meta"
  template:
    metadata:
      labels:
        {{- include "influxdb.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: meta
      {{- if .Values.podAnnotations }}
      annotations:
{{ toYaml .Values.podAnnotations | indent 8 }}
      {{- end }}
    spec:
      {{- if .Values.image.pullSecrets }}
      imagePullSecrets:
      {{- range .Values.image.pullSecrets }}
        - name: {{ . }}
      {{- end}}
      {{- end }}
      serviceAccountName: {{ include "influxdb.serviceAccountName" . }}
      containers:
      - name: "{{ include "influxdb.fullname" . }}-meta"
        image: "{{ .Values.image.repository }}:{{ .Values.enterprise.meta.image.tag }}"
        imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
        resources:
{{ toYaml .Values.enterprise.meta.resources | indent 10 }}
        ports:
        - name: udp
          containerPort: {{ .Values.config.udp.bind_address |  default 8089 }}
        - name: rpc
          containerPort: {{ .Values.config.rpc.bind_address | default 8088 }}
        - name: meta
          containerPort: {{ .Values.config.meta.bind_address | default 8091 }}
        {{- if .Values.env }}
        env:
{{ toYaml .Values.env | indent 10 }}
          # Values.env's HOSTNAME isn't fundamentally different from $HOSTNAME, but this way we get a distinguished name for InfluxDB at runtime.
          - name: INFLUXDB_HOSTNAME
            value: "$(_HOSTNAME).{{ include "influxdb.fullname" . }}-meta"
        {{- end }}
        livenessProbe:
          httpGet:
            path: /ping
            port: meta
          initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds | default 30 }}
          timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds | default 5 }}
        readinessProbe:
          httpGet:
            path: /ping
            port: meta
          initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds | default 5 }}
          timeoutSeconds: {{ .Values.readinessProbe.timeoutSeconds | default 1 }}
        {{- if .Values.startupProbe.enabled }}
        startupProbe:
          httpGet:
            path: /ping
            port: meta
          failureThreshold: {{ .Values.startupProbe.failureThreshold | default 6 }}
          periodSeconds: {{ .Values.startupProbe.periodSeconds | default 5 }}
        {{- end }}
        volumeMounts:
        - name: {{ include "influxdb.fullname" . }}-meta
          mountPath: /var/lib/influxdb
        - name: config
          mountPath: /etc/influxdb
        {{- if .Values.initScripts.enabled }}
        - name: init
          mountPath: /docker-entrypoint-initdb.d
        {{- end }}
      volumes:
      - name: config
        configMap:
          name: {{ include "influxdb.fullname" . }}-meta
      {{- if .Values.initScripts.enabled }}
      - name: init
        configMap:
          name: {{ include "influxdb.fullname" . }}-init
      {{- end }}
      {{- if (not .Values.persistence.enabled ) }}
      - name: {{ include "influxdb.fullname" . }}-meta
        emptyDir: {}
      {{- end }}
    {{- if .Values.schedulerName }}
      schedulerName: "{{ .Values.schedulerName }}"
    {{- end }}
    {{- if .Values.nodeSelector }}
      nodeSelector:
{{ toYaml .Values.nodeSelector | indent 8 }}
      {{- end -}}
      {{- if .Values.affinity }}
      affinity:
{{ toYaml .Values.affinity | indent 8 }}
      {{- end }}
      {{- if .Values.tolerations }}
      tolerations:
{{ toYaml .Values.tolerations | indent 8 }}
      {{- end }}
  {{- if .Values.persistence.enabled }}
  volumeClaimTemplates:
    - metadata:
        name: {{ include "influxdb.fullname" . }}-meta
        annotations:
        {{- range $key, $value := .Values.persistence.annotations }}
          {{ $key }}: "{{ $value }}"
        {{- end }}
      spec:
        accessModes:
          - {{ .Values.persistence.accessMode | quote}}
        resources:
          requests:
            storage: {{ .Values.persistence.size | quote }}
      {{- if .Values.persistence.storageClass }}
      {{- if (eq "-" .Values.persistence.storageClass) }}
        storageClassName: ""
      {{- else }}
        storageClassName: "{{ .Values.persistence.storageClass }}"
      {{- end }}
      {{- end }}
  {{- end }}
{{- end }}