bakery-ia/infrastructure/platform/mail/mailu-helm/values.yaml

# Base Mailu Helm values for Bakery-IA
# Preserves critical configurations from the original Kustomize setup

# Global DNS configuration for DNSSEC validation
global:
  # Using Unbound DNS resolver directly for DNSSEC validation
  # Unbound service is available at unbound-dns.bakery-ia.svc.cluster.local
  # Static ClusterIP configured in unbound-helm/values.yaml
  custom_dns_servers: "10.96.53.53"  # Unbound DNS static ClusterIP

# Domain configuration
domain: "DOMAIN_PLACEHOLDER"
hostnames:
  - "mail.DOMAIN_PLACEHOLDER"

# Mailu version to match the original setup
mailuVersion: "2024.06"

# Secret key for authentication cookies
secretKey: "cb61b934d47029a64117c0e4110c93f66bbcf5eaa15c84c42727fad78f7"

# Timezone
timezone: "Etc/UTC"

# Postmaster configuration
postmaster: "admin"

# Initial admin account configuration
# This creates an admin user as part of the Helm deployment
# Credentials can be provided directly or via Kubernetes secret
initialAccount:
  enabled: true
  username: "admin"
  domain: ""  # Set in environment-specific values (dev/prod)
  password: ""  # Leave empty to use existingSecret
  existingSecret: "mailu-admin-credentials"
  existingSecretPasswordKey: "password"
  mode: "ifmissing"  # Only create if account doesn't exist

# TLS configuration
tls:
  flavor: "notls"  # Disable TLS for development

# Limits configuration
limits:
  messageSizeLimitInMegabytes: 50
  authRatelimit:
    ip: "60/hour"
    user: "100/day"
  messageRatelimit:
    value: "200/day"

# External relay configuration (Mailgun)
# Mailu will relay all outbound emails through Mailgun SMTP
# Credentials are loaded from Kubernetes secret for security
externalRelay:
  host: "[smtp.mailgun.org]:587"
  # Use existing secret for credentials (recommended for security)
  secretName: "mailu-mailgun-credentials"
  usernameKey: "RELAY_USERNAME"
  passwordKey: "RELAY_PASSWORD"

# Webmail configuration
webmail:
  enabled: true
  type: "roundcube"

# Antivirus and antispam configuration
antivirus:
  enabled: false  # Disabled in dev to save resources
antispam:
  enabled: true
  flavor: "rspamd"

# Welcome message
welcomeMessage:
  enabled: false  # Disabled during development

# Logging
logLevel: "INFO"

# Network configuration
subnet: "10.42.0.0/16"

# Redis configuration - using internal Redis (built-in)
externalRedis:
  enabled: false
  # host: "redis-service.bakery-ia.svc.cluster.local"
  # port: 6380
  adminQuotaDbId: 15
  adminRateLimitDbId: 15
  rspamdDbId: 15

# Database configuration - using default SQLite (built-in)
externalDatabase:
  enabled: false
  # type: "postgresql"
  # host: "postgres-service.bakery-ia.svc.cluster.local"
  # port: 5432
  # database: "mailu"
  # username: "mailu"
  # password: "E8Kz47YmVzDlHGs1M9wAbJzxcKnGONCT"

# Persistence configuration
persistence:
  single_pvc: true
  size: 10Gi
  storageClass: ""
  accessModes: [ReadWriteOnce]

# Ingress configuration - disabled to use with existing ingress
ingress:
  enabled: false  # Disable chart's Ingress; use existing one
  tls: false      # Disable TLS in chart since ingress handles it
  tlsFlavorOverride: notls  # No TLS on internal NGINX; expect external proxy to handle TLS
  realIpHeader: X-Forwarded-For  # Header for client IP from your Ingress
  realIpFrom: 0.0.0.0/0  # Trust all proxies (restrict to your Ingress pod CIDR for security)
  path: /
  pathType: ImplementationSpecific

  # Optional: Enable PROXY protocol for mail protocols if your Ingress supports TCP proxying
  proxyProtocol:
    smtp: false
    smtps: false
    submission: false
    imap: false
    imaps: false
    pop3: false
    pop3s: false
    manageSieve: false

# Front configuration
front:
  image:
    tag: "2024.06"
  replicaCount: 1
  service:
    type: ClusterIP
    ports:
      http: 80
      https: 443
  resources:
    requests:
      cpu: 100m
      memory: 128Mi
    limits:
      cpu: 200m
      memory: 256Mi

# Admin configuration
admin:
  image:
    tag: "2024.06"
  replicaCount: 1
  service:
    type: ClusterIP
    port: 80
  resources:
    requests:
      cpu: 100m
      memory: 256Mi
    limits:
      cpu: 300m
      memory: 512Mi

# Postfix configuration
postfix:
  image:
    tag: "2024.06"
  replicaCount: 1
  service:
    type: ClusterIP
    ports:
      smtp: 25
      submission: 587
  resources:
    requests:
      cpu: 100m
      memory: 256Mi
    limits:
      cpu: 500m
      memory: 512Mi

# Dovecot configuration
dovecot:
  image:
    tag: "2024.06"
  replicaCount: 1
  service:
    type: ClusterIP
    ports:
      imap: 143
      imaps: 993
  resources:
    requests:
      cpu: 100m
      memory: 256Mi
    limits:
      cpu: 500m
      memory: 512Mi

# Rspamd configuration
rspamd:
  image:
    tag: "2024.06"
  replicaCount: 1
  service:
    type: ClusterIP
    ports:
      rspamd: 11333
      rspamd-admin: 11334
  resources:
    requests:
      cpu: 200m
      memory: 512Mi
    limits:
      cpu: 1000m
      memory: 1Gi

# Network Policy
networkPolicy:
  enabled: true
  ingressController:
    namespace: ingress-nginx
    podSelector: |
      matchLabels:
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/instance: ingress-nginx
        app.kubernetes.io/component: controller

# DNS Policy Configuration
# Use Kubernetes DNS (ClusterFirst) for internal service resolution
# DNSSEC validation for email is handled by rspamd component
# Note: For production with DNSSEC needs, configure CoreDNS to forward to Unbound
dnsPolicy: "ClusterFirst"