mailu app initial attempt

mailu/manifest.yaml

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+name: mailu
+is: mailu
+description: Mailu is a simple yet full-featured mail server as a set of Docker images. It includes a mail transfer agent, mail delivery agent, webmail, antispam, antivirus, and admin interface.
+version: 2024.06
+icon: https://mailu.io/master/_static/mailu_logo.svg
+defaultConfig:
+  namespace: mailu
+
+  # Domain configuration
+  domain: "{{ .cloud.baseDomain }}"
+  hostname: mail.{{ .cloud.domain }}
+
+  # Container images (from ghcr.io)
+  images:
+    admin: ghcr.io/mailu/admin:2024.06
+    front: ghcr.io/mailu/nginx:2024.06
+    postfix: ghcr.io/mailu/postfix:2024.06
+    dovecot: ghcr.io/mailu/dovecot:2024.06
+    rspamd: ghcr.io/mailu/rspamd:2024.06
+    clamav: ghcr.io/mailu/clamav:2024.06
+    webmail: ghcr.io/mailu/webmail:2024.06
+    redis: redis:alpine
+
+  # Redis configuration (built-in Redis without authentication)
+  redis:
+    host: redis.mailu.svc.cluster.local
+    port: 6379
+
+  # Unbound DNS resolver (for DNSSEC validation)
+  unbound:
+    image: ghcr.io/mailu/unbound:2024.06
+    ip: 10.96.200.1
+
+  # Timezone
+  timezone: UTC
+
+  # Storage
+  storage: 100Gi
+
+  # Initial admin account
+  initialAccount:
+    enabled: true
+    username: admin
+    domain: "{{ .cloud.baseDomain }}"
+    email: "{{ .operator.email }}"
+
+  # TLS configuration
+  tlsSecretName: mailu-tls
+  externalDnsDomain: "{{ .cloud.domain }}"
+
+  # Log level
+  logLevel: WARNING
+
+  # SMTP relay (optional)
+  relayHost: ""
+  relayPort: 25
+
+defaultSecrets:
+  - key: secretKey
+  - key: initialAccountPassword