# services/mailu/helmrelease.yaml
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: mailu
  namespace: mailu-mailserver
spec:
  interval: 30m
  chart:
    spec:
      chart: mailu
      version: 2.1.2
      sourceRef:
        kind: HelmRepository
        name: mailu
        namespace: flux-system
  install:
    remediation: { retries: 3 }
    timeout: 10m
  upgrade:
    remediation:
      retries: 3
      remediateLastFailure: true
    cleanupOnFail: true
    timeout: 10m
  values:
    mailuVersion: "2024.06"
    domain: bstein.dev
    hostnames: [mail.bstein.dev]
    domains:
      - name: bstein.dev
        enabled: true
        dkim:
          enabled: true
    timezone: Etc/UTC
    subnet: 10.42.0.0/16
    existingSecret: mailu-secret
    externalDatabase:
      enabled: true
      type: postgresql
      host: postgres-service.postgres.svc.cluster.local
      port: 5432
      database: mailu
      username: mailu
      existingSecret: mailu-db-secret
      existingSecretUsernameKey: username
      existingSecretPasswordKey: password
      existingSecretDatabaseKey: database
    initialAccount:
      enabled: true
      username: test
      domain: bstein.dev
      existingSecret: mailu-initial-account-secret
      existingSecretPasswordKey: password
    persistence:
      accessModes: [ReadWriteMany]
      size: 100Gi
      storageClass: astreae
      single_pvc: true
    front:
      hostnames: [mail.bstein.dev]
      proxied: true
      hostPort:
        enabled: false
      https:
        enabled: false
        external: false
        forceHttps: false
      externalService:
        enabled: true
        type: LoadBalancer
        externalTrafficPolicy: Cluster
        ports:
          submission: true
        nodePorts:
          pop3: 30010
          pop3s: 30011
          imap: 30143
          imaps: 30993
          manageSieve: 30419
          smtp: 30025
          smtps: 30465
          submission: 30587
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
    admin:
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
      podLivenessProbe:
        enabled: true
        initialDelaySeconds: 30
        periodSeconds: 10
        timeoutSeconds: 5
        failureThreshold: 6
        successThreshold: 1
      podReadinessProbe:
        enabled: true
        initialDelaySeconds: 20
        periodSeconds: 10
        timeoutSeconds: 5
        failureThreshold: 6
        successThreshold: 1
      extraEnvVars:
        - name: FLASK_DEBUG
          value: "1"
        - name: ACCESSLOG
          value: /dev/stdout
        - name: ERRORLOG
          value: /dev/stderr
        - name: WEBROOT_REDIRECT
          value: ""
        - name: FORWARDED_ALLOW_IPS
          value: 127.0.0.1,10.42.0.0/16
        - name: DNS_RESOLVERS
          value: 1.1.1.1,9.9.9.9
      extraVolumes:
        - name: unbound-config
          configMap:
            name: mailu-unbound
        - name: unbound-run
          emptyDir: {}
      extraVolumeMounts:
        - name: unbound-run
          mountPath: /var/lib/unbound
      extraContainers:
        - name: unbound
          image: docker.io/alpine:3.20
          command: ["/bin/sh", "-c"]
          args:
            - |
              while :; do
                printf "nameserver 10.43.0.10\n" > /etc/resolv.conf
                if apk add --no-cache unbound bind-tools; then
                  break
                fi
                echo "apk failed, retrying" >&2
                sleep 10
              done
              cat >/etc/resolv.conf <<'EOF'
              search mailu-mailserver.svc.cluster.local svc.cluster.local cluster.local
              nameserver 127.0.0.1
              EOF
              unbound-anchor -a /var/lib/unbound/root.key || true
              exec unbound -d -c /opt/unbound/etc/unbound/unbound.conf
          ports:
            - containerPort: 53
              protocol: UDP
            - containerPort: 53
              protocol: TCP
          volumeMounts:
            - name: unbound-config
              mountPath: /opt/unbound/etc/unbound
            - name: unbound-run
              mountPath: /var/lib/unbound
      dnsPolicy: None
      dnsConfig:
        nameservers:
          - 127.0.0.1
        searches:
          - mailu-mailserver.svc.cluster.local
          - svc.cluster.local
          - cluster.local
    clamav:
      image:
        repository: clamav/clamav-debian
        tag: "1.4"
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi5
      resources:
        requests:
          cpu: 200m
          memory: 1Gi
        limits:
          cpu: 500m
          memory: 3Gi
      livenessProbe:
        enabled: false
        initialDelaySeconds: 300
        periodSeconds: 30
        timeoutSeconds: 5
        failureThreshold: 6
        successThreshold: 1
      startupProbe:
        enabled: false
        initialDelaySeconds: 60
        periodSeconds: 30
        timeoutSeconds: 5
        failureThreshold: 20
        successThreshold: 1
      readinessProbe:
        enabled: false
        initialDelaySeconds: 300
        periodSeconds: 30
        timeoutSeconds: 5
        failureThreshold: 6
        successThreshold: 1
    dovecot:
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
    oletools:
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
    postfix:
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
    redis:
      enabled: true
      architecture: standalone
      logLevel: DEBUG
      image:
        repository: bitnamilegacy/redis
        tag: 8.0.3-debian-12-r3
      master:
        nodeSelector:
          hardware: rpi4
        persistence:
          enabled: true
          accessModes: [ReadWriteMany]
          size: 8Gi
          storageClass: astreae
    rspamd:
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
      persistence:
        accessModes: [ReadWriteOnce]
        size: 8Gi
        storageClass: astreae
    tika:
      logLevel: DEBUG
      nodeSelector:
        hardware: rpi4
    global:
      logLevel: DEBUG
      storageClass: astreae
    webmail:
      enabled: false
      nodeSelector:
        hardware: rpi4
    ingress:
      enabled: false
      ingressClassName: traefik
      tls: true
      existingSecret: mailu-certificates
      annotations:
        traefik.ingress.kubernetes.io/router.entrypoints: websecure
        traefik.ingress.kubernetes.io/service.serversscheme: https
        traefik.ingress.kubernetes.io/service.serverstransport: mailu-transport@kubernetescrd
      extraRules:
        - host: mail.bstein.dev
          http:
            paths:
              - path: /
                pathType: Prefix
                backend:
                  service:
                    name: mailu-front
                    port:
                      number: 443
    service:
      ports:
        smtp:
          port: 25
          targetPort: 25
        smtps:
          port: 465
          targetPort: 465
        submission:
          port: 587
          targetPort: 587