apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: {{ include "loki-stack.fullname" . }}-loki-read
  labels:
    {{- include "loki-stack.labels" . | nindent 4 }}
    app.kubernetes.io/component: loki-read
spec:
  replicas: {{ .Values.loki.read.replicas }}
  serviceName: {{ include "loki-stack.fullname" . }}-loki-read-headless
  selector:
    matchLabels:
      {{- include "loki-stack.selectorLabels" . | nindent 6 }}
      app.kubernetes.io/component: loki-read
  template:
    metadata:
      annotations:
        checksum/config: {{ include (print $.Template.BasePath "/loki-configmap.yaml") . | sha256sum }}
      labels:
        {{- include "loki-stack.selectorLabels" . | nindent 8 }}
        app.kubernetes.io/component: loki-read
        loki.grafana.com/memberlist: "true"
    spec:
      containers:
        - name: loki
          image: {{ .Values.loki.image.repository }}:{{ .Values.loki.image.tag }}
          args:
            - -config.file=/etc/loki/loki-config.yaml
            - -config.expand-env=true
            - -target=read
          env:
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
          ports:
            - name: http
              containerPort: 3100
            - name: grpc
              containerPort: 9095
            - name: memberlist
              containerPort: 7946
          readinessProbe:
            httpGet:
              path: /ready
              port: http
            initialDelaySeconds: 15
            periodSeconds: 10
          volumeMounts:
            - name: config
              mountPath: /etc/loki
            - name: data
              mountPath: /loki
          resources:
            {{- toYaml .Values.loki.read.resources | nindent 12 }}
      volumes:
        - name: config
          configMap:
            name: {{ include "loki-stack.fullname" . }}-loki
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes:
          - ReadWriteOnce
        {{- if .Values.loki.read.storage.storageClassName }}
        storageClassName: {{ .Values.loki.read.storage.storageClassName }}
        {{- end }}
        resources:
          requests:
            storage: {{ .Values.loki.read.storage.size }}