demo/k8s/helm/logsys/templates/statefulset-loki.yaml

{{- if .Values.loki.enabled }}
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: loki
  namespace: {{ .Release.Namespace }}
  labels:
    app: loki
spec:
  serviceName: loki
  replicas: {{ .Values.loki.replicas }}
  selector:
    matchLabels:
      app: loki
  template:
    metadata:
      labels:
        app: loki
    spec:
      serviceAccountName: loki
      securityContext:
        fsGroup: 65534
        runAsNonRoot: false
        runAsUser: 0
      nodeSelector: {{ toYaml .Values.nodeSelector | nindent 8 }}
      tolerations: {{ toYaml .Values.tolerations | nindent 8 }}
      affinity: {{ toYaml .Values.affinity | nindent 8 }}
      initContainers:
        - name: init-loki-storage
          image: swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/alpine:3.18
          securityContext:
            runAsUser: 0
          command:
            - sh
            - -c
            - |
              set -e
              mkdir -p /loki/chunks
              mkdir -p /loki/boltdb-shipper-active
              mkdir -p /loki/boltdb-shipper-cache
              mkdir -p /loki/compactor
              mkdir -p /wal
              chmod -R 777 /loki
              chmod -R 777 /wal
              echo "Loki storage and WAL directories created successfully"
          volumeMounts:
            - name: loki-storage
              mountPath: /loki
            - name: wal-vol
              mountPath: /wal
      containers:
        - name: loki
          image: "{{ .Values.loki.image.repository }}:{{ .Values.loki.image.tag }}"
          imagePullPolicy: IfNotPresent
          args:
            - -config.file=/etc/loki/loki-config.yaml
          ports:
            - name: http
              containerPort: 3100
              protocol: TCP
          livenessProbe:
            httpGet:
              path: /ready
              port: http
            initialDelaySeconds: 45
            timeoutSeconds: 1
            periodSeconds: 10
            successThreshold: 1
            failureThreshold: 3
          readinessProbe:
            httpGet:
              path: /ready
              port: http
            initialDelaySeconds: 45
            timeoutSeconds: 1
            periodSeconds: 10
            successThreshold: 1
            failureThreshold: 3
          resources:
            limits:
              cpu: {{ .Values.loki.resources.limits.cpu }}
              memory: {{ .Values.loki.resources.limits.memory }}
            requests:
              cpu: {{ .Values.loki.resources.requests.cpu }}
              memory: {{ .Values.loki.resources.requests.memory }}
          volumeMounts:
            - name: loki-config
              mountPath: /etc/loki
              readOnly: true
            - name: loki-storage
              mountPath: /loki
            - name: wal-vol
              mountPath: /wal
      volumes:
        - name: loki-config
          configMap:
            name: loki-config
        - name: wal-vol
          emptyDir: {}
  volumeClaimTemplates:
    - metadata:
        name: loki-storage
      spec:
        accessModes:
          - ReadWriteOnce
        storageClassName: {{ .Values.loki.persistence.storageClassName }}
        resources:
          requests:
            storage: {{ .Values.loki.persistence.size }}
{{- end }}