refactor(mailgateway): rename namespace postfix→mailgateway, switch to tozd/postfix

- Rename apps/base/postfix → apps/base/mailgateway
- Rename apps/overlays/au-syd1/postfix → apps/overlays/au-syd1/mailgateway
- Namespace postfix → mailgateway throughout all resources
- Replace boky/postfix with tozd/postfix:alpine-322 (Postfix 3.10.2 on Alpine 3.22)
- Add full main.cf and master.cf as ConfigMap resources mounted via subPath
  - main.cf: relay-only gateway config, texthash: transport maps, rspamd milter
  - master.cf: standard smtp + submission (587, TLS required) + internal processes
- Remove custom.cf (superseded by main.cf); merge transport into postfix-config ConfigMap
- MAILNAME/MY_NETWORKS/MY_DESTINATION env vars kept in sync with main.cf
- LOG_TO_STDOUT=1 for k8s log collection
- Vault DKIM keys now at kubernetes/namespace/mailgateway/default/dkim-keys
- artifactapi: replace boky/postfix with tozd/postfix in dockerhub cache

This commit is contained in:

Ben Vincent

2026-05-24 12:01:43 +10:00

parent 1cf08dd5c1

commit d980d46a55

22 changed files with 131 additions and 83 deletions

									
										apps/overlays/au-syd1/postfix/kustomization.yaml → apps/overlays/au-syd1/mailgateway/kustomization.yaml
									
		+1
		-1
	
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				@@ -3,4 +3,4 @@ apiVersion: kustomize.config.k8s.io/v1beta1

				kind: Kustomization

				resources:

				  - ../../../base/postfix

				  - ../../../base/mailgateway