Mail needs one routing hub between the edge gateways, Stalwart and the lab: inbound to Stalwart over LMTP, outbound to the gateways, all of it through rspamd.
- add a 2-replica postfix StatefulSet `mail-in.main.unkin.net` (50Gi spool per pod, node spread, PDB)
- serve port 25 with the LE `*.main.unkin.net` wildcard, reflected into `mail`
- gateways (TLS, XFORWARD) relay to relay_domains with LMTP recipient verification; lab and pods relay anywhere
- pass all mail through the rspamd milter, tempfailing when it is down
- limit port 25 via NetworkPolicy to gateways, lab and `mail.unkin.net/smarthost-client=true` pods
- relay outbound via mta1/mta2.edge.unkin.net with verified TLS; add ClusterIP + LB 198.18.200.16
Requires #539 merged.
Reviewed-on: #541
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
The haproxy edge terminates TLS for hosts under `main.unkin.net` and `ceph.unkin.net`, which the single `*.unkin.net` wildcard does not cover.
- Add cert-manager Certificates for both wildcards from the `letsencrypt` ClusterIssuer.
- Reflect the minted secrets into the `haproxy` namespace.
Needs these records in the public unkin.net zone first:
`_acme-challenge.main.unkin.net. CNAME _acme-challenge.main.acme.unkin.net.`
`_acme-challenge.ceph.unkin.net. CNAME _acme-challenge.ceph.acme.unkin.net.`
Reviewed-on: #484
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
unkin-agent