60 lines
1.7 KiB
YAML
60 lines
1.7 KiB
YAML
# Network Policy to allow notification service to send emails via Mailu
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# This policy allows egress from notification-service to mailu-front on SMTP port 25
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#
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# NOTE: Mailu is configured with TLS_FLAVOR: "notls" and subnet: "10.1.0.0/16"
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# This allows unauthenticated relay from trusted pod network on port 25
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# mailu-front (nginx) handles SMTP and proxies to postfix internally
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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: allow-notification-to-mailu-smtp
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namespace: bakery-ia
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labels:
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app: notification-service
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component: network-policy
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tier: security
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spec:
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podSelector:
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matchLabels:
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app: notification-service
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policyTypes:
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- Egress
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egress:
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# Allow SMTP traffic to mailu-front (port 25, no TLS)
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- to:
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- podSelector:
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matchLabels:
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app.kubernetes.io/instance: mailu
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app.kubernetes.io/component: front
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ports:
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- port: 25
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protocol: TCP
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---
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# Allow ingress TO mailu-front FROM any pod in bakery-ia namespace
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# This is needed because mailu-allow-internal only allows traffic from mailu pods
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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: allow-mailu-smtp-from-apps
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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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tier: security
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spec:
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podSelector:
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matchLabels:
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app.kubernetes.io/instance: mailu
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app.kubernetes.io/component: front
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policyTypes:
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- Ingress
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ingress:
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# Allow SMTP from any pod in bakery-ia namespace
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- from:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: bakery-ia
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ports:
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- port: 25
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protocol: TCP
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