apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  name: loki
  labels:
    app.kubernetes.io/name: loki
spec:
  privileged: false
  allowPrivilegeEscalation: false
  volumes:
    - 'configMap'
    - 'emptyDir'
    - 'persistentVolumeClaim'
    - 'secret'
    - 'projected'
    - 'downwardAPI'
  hostNetwork: false
  hostIPC: false
  hostPID: false
  runAsUser:
    rule: 'MustRunAsNonRoot'
  seLinux:
    rule: 'RunAsAny'
  supplementalGroups:
    rule: 'MustRunAs'
    ranges:
    - min: 1
      max: 65535
  fsGroup:
    rule: 'MustRunAs'
    ranges:
    - min: 1
      max: 65535
  readOnlyRootFilesystem: true
  requiredDropCapabilities:
    - ALL
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: loki
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: loki
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
data:
  loki.yaml: |
    auth_enabled: false
    chunk_store_config:
      max_look_back_period: 0s
    compactor:
      shared_store: filesystem
      working_directory: /data/loki/boltdb-shipper-compactor
    ingester:
      chunk_block_size: 262144
      chunk_idle_period: 3m
      chunk_retain_period: 1m
      lifecycler:
        ring:
          kvstore:
            store: inmemory
          replication_factor: 1
      max_transfer_retries: 0
    limits_config:
      enforce_metric_name: false
      reject_old_samples: true
      reject_old_samples_max_age: 168h
    schema_config:
      configs:
      - from: "2020-10-24"
        index:
          period: 24h
          prefix: index_
        object_store: filesystem
        schema: v11
        store: boltdb-shipper
    server:
      http_listen_port: 3100
    storage_config:
      boltdb_shipper:
        active_index_directory: /data/loki/boltdb-shipper-active
        cache_location: /data/loki/boltdb-shipper-cache
        cache_ttl: 24h
        shared_store: filesystem
      filesystem:
        directory: /data/loki/chunks
    table_manager:
      retention_deletes_enabled: true
      retention_period: 720h
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: loki
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
rules:
- apiGroups:      ['extensions']
  resources:      ['podsecuritypolicies']
  verbs:          ['use']
  resourceNames:  [loki]
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: loki
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: loki
subjects:
- kind: ServiceAccount
  name: loki
---
apiVersion: v1
kind: Service
metadata:
  name: loki-headless
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
    variant: headless
spec:
  clusterIP: None
  ports:
    - port: 3100
      protocol: TCP
      name: http-metrics
      targetPort: http-metrics
  selector:
    app.kubernetes.io/name: loki
---
apiVersion: v1
kind: Service
metadata:
  name: loki
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
spec:
  type: ClusterIP
  ports:
    - port: 3100
      protocol: TCP
      name: http-metrics
      targetPort: http-metrics
  selector:
    app.kubernetes.io/name: loki
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: loki
  namespace: monitoring
  labels:
    app.kubernetes.io/name: loki
spec:
  podManagementPolicy: OrderedReady
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: loki
  serviceName: loki-headless
  template:
    metadata:
      labels:
        app.kubernetes.io/name: loki
      annotations:
        prometheus.io/port: http-metrics
        prometheus.io/scrape: "true"
    spec:
      serviceAccountName: loki
      securityContext:
        fsGroup: 10001
        runAsGroup: 10001
        runAsNonRoot: true
        runAsUser: 10001
      containers:
        - name: loki
          image: "grafana/loki:2.2.1"
          imagePullPolicy: IfNotPresent
          args:
            - "-config.file=/etc/loki/loki.yaml"
          volumeMounts:
            - name: config
              mountPath: /etc/loki
            - name: storage
              mountPath: "/data"
              subPath:
          ports:
            - name: http-metrics
              containerPort: 3100
              protocol: TCP
          livenessProbe:
            httpGet:
              path: /ready
              port: http-metrics
            initialDelaySeconds: 45
          readinessProbe:
            httpGet:
              path: /ready
              port: http-metrics
            initialDelaySeconds: 45
          securityContext:
            readOnlyRootFilesystem: true
      terminationGracePeriodSeconds: 4800
      volumes:
        - name: config
          configMap:
            name: loki
  volumeClaimTemplates:
  - metadata:
      name: storage
    spec:
      accessModes:
        - ReadWriteOnce
      resources:
        requests:
          storage: "10Gi"
      storageClassName: scw-bssd