Follow-up to the reciprocal-ingress fix: in-cluster verification (Hubble) revealed
the east-west path was STILL fully blocked — and that the pre-existing EGRESS half
was also broken, contrary to the original diagnosis. Root cause: a CiliumNetworkPolicy
`toEndpoints`/`fromEndpoints` selector is scoped to the POLICY's OWN namespace unless
it carries the reserved `k8s:io.kubernetes.pod.namespace` label. Every service lives
in its own namespace (== its name) and every dependency crosses a namespace boundary,
so an app-label-only peer selector matched nothing and Cilium silently denied the flow
(Hubble: sonarr->qbittorrent = "EGRESS DENIED ... Policy denied DROPPED").
Pin the peer namespace on BOTH halves — egress toEndpoints (destination ns == dep.to)
and the reciprocal ingress fromEndpoints (source ns == source name). This is a strict
TIGHTENING (more precise, still L3/L4), not a weakening. Verified end-to-end in-cluster:
sonarr->qbittorrent:8080, sonarr->jackett:9117, seerr->{sonarr:8989,radarr:7878,
plex:32400} now CONNECT (were DROPPED); undeclared sonarr->plex:32400 and
seerr->qbittorrent:8080 stay BLOCKED (default-deny holds).
Selftest + L0 (17/17) + L1 (3/3, goldens byte-identical) + lint all pass. NOTE: this
necessarily touches the egress toEndpoints selector, which the task scoped as
ingress-only; the premise that egress already worked was empirically false.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
257 lines
5.6 KiB
YAML
257 lines
5.6 KiB
YAML
---
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# Namespace (trust zone; default-deny + policies apply)
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apiVersion: v1
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kind: Namespace
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metadata:
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name: jackett
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labels:
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homelab.keithjackson.dev/app-namespace: 'true'
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gateway-access: shared
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annotations:
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homelab.keithjackson.dev/backup-policy: daily-offcluster
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---
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# Default-deny baseline (R-NET-01): deny all, allow only DNS
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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: default-deny
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namespace: jackett
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labels:
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homelab.keithjackson.dev/baseline: default-deny
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spec:
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podSelector: {}
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policyTypes:
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- Ingress
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- Egress
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ingress: []
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egress:
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- to:
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- namespaceSelector:
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matchLabels:
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kubernetes.io/metadata.name: kube-system
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ports:
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- protocol: UDP
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port: 53
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- protocol: TCP
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port: 53
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---
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# PVC jackett-config (R-STATE)
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apiVersion: v1
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kind: PersistentVolumeClaim
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metadata:
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name: jackett-config
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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accessModes:
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- ReadWriteOnce
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storageClassName: longhorn
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resources:
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requests:
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storage: 2Gi
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---
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# Deployment (R-PLAT-02)
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: jackett
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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replicas: 1
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strategy:
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type: Recreate
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selector:
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matchLabels:
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app.kubernetes.io/name: jackett
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template:
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metadata:
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labels:
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app.kubernetes.io/name: jackett
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homelab.keithjackson.dev/egress-class: vpn
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homelab.keithjackson.dev/auth-mode: forward-auth
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annotations:
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homelab.keithjackson.dev/auth-mode: forward-auth
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homelab.keithjackson.dev/auth-groups: media-users
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spec:
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containers:
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- name: jackett
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image: lscr.io/linuxserver/jackett:latest
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ports:
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- containerPort: 9117
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volumeMounts:
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- name: config
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mountPath: /data/config
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volumes:
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- name: config
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persistentVolumeClaim:
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claimName: jackett-config
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---
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# Service
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apiVersion: v1
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kind: Service
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metadata:
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name: jackett
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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selector:
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app.kubernetes.io/name: jackett
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ports:
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- name: port-9117
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port: 9117
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targetPort: 9117
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---
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# CiliumNetworkPolicy reciprocal ingress allow (R-NET-02): jackett-allow-radarr-9117
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apiVersion: cilium.io/v2
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kind: CiliumNetworkPolicy
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metadata:
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name: jackett-allow-radarr-9117
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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endpointSelector:
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matchLabels:
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app.kubernetes.io/name: jackett
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ingress:
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- fromEndpoints:
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- matchLabels:
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app.kubernetes.io/name: radarr
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k8s:io.kubernetes.pod.namespace: radarr
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toPorts:
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- ports:
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- port: '9117'
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protocol: TCP
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---
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# CiliumNetworkPolicy reciprocal ingress allow (R-NET-02): jackett-allow-sonarr-9117
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apiVersion: cilium.io/v2
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kind: CiliumNetworkPolicy
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metadata:
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name: jackett-allow-sonarr-9117
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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endpointSelector:
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matchLabels:
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app.kubernetes.io/name: jackett
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ingress:
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- fromEndpoints:
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- matchLabels:
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app.kubernetes.io/name: sonarr
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k8s:io.kubernetes.pod.namespace: sonarr
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toPorts:
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- ports:
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- port: '9117'
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protocol: TCP
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---
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# CiliumNetworkPolicy gateway-ingress allow (R-NET-01/02): jackett-allow-gateway-ingress
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apiVersion: cilium.io/v2
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kind: CiliumNetworkPolicy
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metadata:
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name: jackett-allow-gateway-ingress
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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endpointSelector:
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matchLabels:
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app.kubernetes.io/name: jackett
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ingress:
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- fromEntities:
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- ingress
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toPorts:
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- ports:
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- port: '9117'
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protocol: TCP
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---
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# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): jackett-allow-internet-egress
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apiVersion: cilium.io/v2
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kind: CiliumNetworkPolicy
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metadata:
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name: jackett-allow-internet-egress
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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spec:
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endpointSelector:
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matchLabels:
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app.kubernetes.io/name: jackett
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egress:
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- toEntities:
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- world
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---
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# HTTPRoute jackett-9117 (R-TLS/R-DNS)
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apiVersion: gateway.networking.k8s.io/v1
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kind: HTTPRoute
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metadata:
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name: jackett-9117
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namespace: jackett
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labels:
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app.kubernetes.io/name: jackett
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annotations:
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homelab.keithjackson.dev/auth-mode: forward-auth
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homelab.keithjackson.dev/auth-groups: media-users
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spec:
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parentRefs:
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- name: shared
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namespace: gateway
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sectionName: https
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hostnames:
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- jackett.home.keithjackson.dev
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rules:
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- matches:
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- path:
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type: PathPrefix
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value: /
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backendRefs:
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- name: jackett
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port: 9117
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---
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# ServiceMonitor (R-OBS-01)
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apiVersion: monitoring.coreos.com/v1
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kind: ServiceMonitor
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metadata:
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name: jackett
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namespace: jackett
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labels:
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release: kube-prometheus-stack
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app.kubernetes.io/name: jackett
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spec:
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selector:
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matchLabels:
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app.kubernetes.io/name: jackett
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namespaceSelector:
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matchNames:
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- jackett
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endpoints:
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- port: metrics
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interval: 30s
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---
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# PrometheusRule SLI alerts (R-OBS-01)
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apiVersion: monitoring.coreos.com/v1
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kind: PrometheusRule
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metadata:
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name: jackett-slis
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namespace: jackett
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labels:
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release: kube-prometheus-stack
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app.kubernetes.io/name: jackett
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spec:
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groups:
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- name: jackett.slis
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rules:
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- alert: jackett-down
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expr: up{job="jackett"} == 0
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for: 5m
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labels:
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severity: critical
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service: jackett
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annotations:
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summary: jackett is down
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description: 'jackett has been unreachable for 5m (SLI: up).'
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