# services/logging/loki-helmrelease.yaml
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: loki
  namespace: logging
spec:
  interval: 15m
  chart:
    spec:
      chart: loki
      version: "~6.6.0"
      sourceRef:
        kind: HelmRepository
        name: grafana
        namespace: flux-system
  values:
    fullnameOverride: loki
    deploymentMode: SingleBinary
    loki:
      auth_enabled: false
      commonConfig:
        replication_factor: 1
      storage:
        type: filesystem
      storageConfig:
        filesystem:
          directory: /var/loki/chunks
        tsdb_shipper:
          active_index_directory: /var/loki/index
          cache_location: /var/loki/index_cache
      schemaConfig:
        configs:
          - from: "2024-01-01"
            store: tsdb
            object_store: filesystem
            schema: v13
            index:
              prefix: loki_index_
              period: 24h
      compactor:
        working_directory: /var/loki/compactor
        retention_enabled: true
        delete_request_store: filesystem
      limits_config:
        retention_period: 4320h
        reject_old_samples: true
        reject_old_samples_max_age: 168h
    read:
      replicas: 0
    write:
      replicas: 0
    backend:
      replicas: 0
    singleBinary:
      replicas: 1
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: hardware
                    operator: In
                    values:
                      - rpi5
                      - rpi4
      persistence:
        enabled: true
        size: 200Gi
        storageClass: asteria
    gateway:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: hardware
                    operator: In
                    values:
                      - rpi5
                      - rpi4
    chunksCache:
      allocatedMemory: 512
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: hardware
                    operator: In
                    values:
                      - rpi5
                      - rpi4
    resultsCache:
      allocatedMemory: 256
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: hardware
                    operator: In
                    values:
                      - rpi5
                      - rpi4
    lokiCanary:
      nodeSelector:
        hardware: rpi5
        node-role.kubernetes.io/worker: "true"
    service:
      type: ClusterIP
    ingress:
      enabled: false