unkin-agent
70dd1bd775
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>
118 lines
3.3 KiB
YAML
118 lines
3.3 KiB
YAML
---
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apiVersion: apps/v1
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kind: StatefulSet
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metadata:
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name: smarthost
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namespace: mail
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annotations:
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configmap.reloader.stakater.com/reload: "smarthost-config"
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spec:
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serviceName: smarthost
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replicas: 2
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selector:
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matchLabels:
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app.kubernetes.io/name: smarthost
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template:
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metadata:
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labels:
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app.kubernetes.io/name: smarthost
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spec:
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topologySpreadConstraints:
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- maxSkew: 1
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topologyKey: kubernetes.io/hostname
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whenUnsatisfiable: DoNotSchedule
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labelSelector:
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matchLabels:
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app.kubernetes.io/name: smarthost
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securityContext:
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seccompProfile:
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type: RuntimeDefault
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containers:
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- name: postfix
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image: artifactapi.k8s.syd1.au.unkin.net/docker-internal/postfix:0.1.0
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imagePullPolicy: IfNotPresent
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ports:
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- containerPort: 25
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name: smtp
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protocol: TCP
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readinessProbe:
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tcpSocket:
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port: smtp
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initialDelaySeconds: 5
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periodSeconds: 10
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livenessProbe:
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exec:
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command: ["postfix", "status"]
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initialDelaySeconds: 30
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periodSeconds: 30
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# postfix master runs as root and drops to the postfix user per service.
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securityContext:
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allowPrivilegeEscalation: false
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capabilities:
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drop:
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- ALL
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add:
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- CHOWN
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- DAC_OVERRIDE
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- FOWNER
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- SETUID
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- SETGID
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- NET_BIND_SERVICE
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resources:
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requests:
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cpu: 50m
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memory: 128Mi
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limits:
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cpu: 500m
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memory: 512Mi
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volumeMounts:
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- name: spool
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mountPath: /var/spool/postfix
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- name: tls
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mountPath: /etc/postfix/tls
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readOnly: true
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- name: config
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mountPath: /etc/postfix/main.cf
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subPath: main.cf
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readOnly: true
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- name: config
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mountPath: /etc/postfix/master.cf
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subPath: master.cf
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readOnly: true
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- name: config
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mountPath: /etc/postfix/relay_domains
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subPath: relay_domains
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readOnly: true
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- name: config
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mountPath: /etc/postfix/transport
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subPath: transport
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readOnly: true
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- name: config
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mountPath: /etc/postfix/gateways.cidr
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subPath: gateways.cidr
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readOnly: true
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- name: config
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mountPath: /etc/postfix/mynetworks.cidr
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subPath: mynetworks.cidr
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readOnly: true
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- name: config
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mountPath: /etc/postfix/tls_policy
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subPath: tls_policy
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readOnly: true
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volumes:
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- name: config
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configMap:
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name: smarthost-config
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- name: tls
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secret:
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secretName: wildcard-main-unkin-net-tls
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volumeClaimTemplates:
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- metadata:
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name: spool
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spec:
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accessModes: [ReadWriteOnce]
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storageClassName: cephrbd-fast-delete
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resources:
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requests:
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storage: 50Gi
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