Files
home-network-k3s-impl/apps/seerr.yaml
T
jakman85andClaude Opus 4.8 b871877c1b fix(render): namespace-pin east-west selectors so declared deps actually connect
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]>
2026-08-26 01:01:56 -05:00

273 lines
5.7 KiB
YAML

---
# Namespace (trust zone; default-deny + policies apply)
apiVersion: v1
kind: Namespace
metadata:
name: seerr
labels:
homelab.keithjackson.dev/app-namespace: 'true'
gateway-access: shared
annotations:
homelab.keithjackson.dev/backup-policy: daily-offcluster
---
# Default-deny baseline (R-NET-01): deny all, allow only DNS
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: default-deny
namespace: seerr
labels:
homelab.keithjackson.dev/baseline: default-deny
spec:
podSelector: {}
policyTypes:
- Ingress
- Egress
ingress: []
egress:
- to:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: kube-system
ports:
- protocol: UDP
port: 53
- protocol: TCP
port: 53
---
# PVC seerr-config (R-STATE)
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: seerr-config
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
accessModes:
- ReadWriteOnce
storageClassName: longhorn
resources:
requests:
storage: 5Gi
---
# Deployment (R-PLAT-02)
apiVersion: apps/v1
kind: Deployment
metadata:
name: seerr
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
replicas: 1
strategy:
type: Recreate
selector:
matchLabels:
app.kubernetes.io/name: seerr
template:
metadata:
labels:
app.kubernetes.io/name: seerr
homelab.keithjackson.dev/egress-class: internet
homelab.keithjackson.dev/auth-mode: native
spec:
containers:
- name: seerr
image: sctx/overseerr:latest
ports:
- containerPort: 5055
volumeMounts:
- name: config
mountPath: /data/config
volumes:
- name: config
persistentVolumeClaim:
claimName: seerr-config
---
# Service
apiVersion: v1
kind: Service
metadata:
name: seerr
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
selector:
app.kubernetes.io/name: seerr
ports:
- name: port-5055
port: 5055
targetPort: 5055
---
# CiliumNetworkPolicy egress allow (R-NET-02): seerr-allow-sonarr-8989
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: seerr-allow-sonarr-8989
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: seerr
egress:
- toEndpoints:
- matchLabels:
app.kubernetes.io/name: sonarr
k8s:io.kubernetes.pod.namespace: sonarr
toPorts:
- ports:
- port: '8989'
protocol: TCP
---
# CiliumNetworkPolicy egress allow (R-NET-02): seerr-allow-radarr-7878
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: seerr-allow-radarr-7878
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: seerr
egress:
- toEndpoints:
- matchLabels:
app.kubernetes.io/name: radarr
k8s:io.kubernetes.pod.namespace: radarr
toPorts:
- ports:
- port: '7878'
protocol: TCP
---
# CiliumNetworkPolicy egress allow (R-NET-02): seerr-allow-plex-32400
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: seerr-allow-plex-32400
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: seerr
egress:
- toEndpoints:
- matchLabels:
app.kubernetes.io/name: plex
k8s:io.kubernetes.pod.namespace: plex
toPorts:
- ports:
- port: '32400'
protocol: TCP
---
# CiliumNetworkPolicy gateway-ingress allow (R-NET-01/02): seerr-allow-gateway-ingress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: seerr-allow-gateway-ingress
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: seerr
ingress:
- fromEntities:
- ingress
toPorts:
- ports:
- port: '5055'
protocol: TCP
---
# CiliumNetworkPolicy world egress allow (egress class governs the path; R-NET-05): seerr-allow-internet-egress
apiVersion: cilium.io/v2
kind: CiliumNetworkPolicy
metadata:
name: seerr-allow-internet-egress
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
endpointSelector:
matchLabels:
app.kubernetes.io/name: seerr
egress:
- toEntities:
- world
---
# HTTPRoute seerr-5055 (R-TLS/R-DNS)
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
name: seerr-5055
namespace: seerr
labels:
app.kubernetes.io/name: seerr
spec:
parentRefs:
- name: shared
namespace: gateway
sectionName: https
hostnames:
- seerr.home.keithjackson.dev
rules:
- matches:
- path:
type: PathPrefix
value: /
backendRefs:
- name: seerr
port: 5055
---
# ServiceMonitor (R-OBS-01)
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: seerr
namespace: seerr
labels:
release: kube-prometheus-stack
app.kubernetes.io/name: seerr
spec:
selector:
matchLabels:
app.kubernetes.io/name: seerr
namespaceSelector:
matchNames:
- seerr
endpoints:
- port: metrics
interval: 30s
---
# PrometheusRule SLI alerts (R-OBS-01)
apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: seerr-slis
namespace: seerr
labels:
release: kube-prometheus-stack
app.kubernetes.io/name: seerr
spec:
groups:
- name: seerr.slis
rules:
- alert: seerr-down
expr: up{job="seerr"} == 0
for: 5m
labels:
severity: critical
service: seerr
annotations:
summary: seerr is down
description: 'seerr has been unreachable for 5m (SLI: up).'