93 lines
2.1 KiB
YAML
93 lines
2.1 KiB
YAML
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apiVersion: networking.k8s.io/v1
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kind: NetworkPolicy
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metadata:
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name: mailu-network-policy
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namespace: bakery-ia
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labels:
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app: mailu
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component: network-policy
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spec:
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# Apply to all Mailu pods (matches mailu-deployment.yaml labels)
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podSelector:
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matchLabels:
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app: mailu
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policyTypes:
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- Ingress
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- Egress
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ingress:
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# Allow SMTP from notification-service
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- from:
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- podSelector:
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matchLabels:
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app: notification-service
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ports:
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- port: 25
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- port: 587
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# Allow SMTP from other internal services that may need to send email
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- from:
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- podSelector:
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matchLabels:
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app.kubernetes.io/name: bakery-ia
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ports:
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- port: 587
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# Allow webmail/admin access via ingress controller
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- from:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: ingress-nginx
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ports:
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- port: 80
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- port: 443
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# Allow internal Mailu component communication
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- from:
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- podSelector:
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matchLabels:
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app: mailu
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ports:
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- port: 25
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- port: 587
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- port: 143
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- port: 993
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- port: 80
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- port: 11333
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- port: 11334
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egress:
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# Allow relay to external SMTP (Mailgun)
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- to:
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- ipBlock:
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cidr: 0.0.0.0/0
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except:
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- 10.0.0.0/8
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- 172.16.0.0/12
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- 192.168.0.0/16
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ports:
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- port: 587
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- port: 465
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- port: 25
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# Allow internal Mailu component communication
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- to:
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- podSelector:
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matchLabels:
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app: mailu
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ports:
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- port: 25
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- port: 587
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- port: 143
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- port: 993
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- port: 80
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- port: 11333
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- port: 11334
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# Allow connection to shared Redis (database 15)
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- to:
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- podSelector:
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matchLabels:
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app.kubernetes.io/name: redis
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ports:
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- port: 6379
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# Allow DNS lookups
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- to: []
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ports:
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- port: 53
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protocol: UDP
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- port: 53
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protocol: TCP
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