docs: Kubernetes - Add proxy example with Traefik #3865
Description
Subject
I would like to configure a not documented mail server use case
Description
This could be nice to add to the Kubernetes documentation page.
This is an example of configuring Traefik as a reverse proxy that was taken from a PR request (docker-mailserver/docker-mailserver-helm#62).
Running behind Traefik as reverse proxy
Setup according to the official DMS guide with traefik.
values.yaml
service:
type: ClusterIP
behind_proxy: true
proxy_trusted_networks: "10.42.0.0/16"Using the following TCP Route.
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRouteTCP
metadata:
name: smtp
namespace: mail
spec:
entryPoints:
- smtp
routes:
- match: HostSNI(`*`)
services:
- name: mail-docker-mailserver
namespace: mail
port: 25
proxyProtocol:
version: 1
---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRouteTCP
metadata:
name: smtps
namespace: mail
spec:
entryPoints:
- smtps
tls:
passthrough: true
routes:
- match: HostSNI(`*`)
services:
- name: mail-docker-mailserver
namespace: mail
port: 465
proxyProtocol:
version: 1
---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRouteTCP
metadata:
name: imaps
namespace: mail
spec:
entryPoints:
- imaps
tls:
passthrough: true
routes:
- match: HostSNI(`*`)
services:
- name: mail-docker-mailserver
namespace: mail
port: 10993
proxyProtocol:
version: 2
---
apiVersion: traefik.containo.us/v1alpha1
kind: IngressRouteTCP
metadata:
name: submission
namespace: mail
spec:
entryPoints:
- submission
routes:
- match: HostSNI(`*`)
services:
- name: mail-docker-mailserver
namespace: mail
port: 587
proxyProtocol:
version: 1