Plex on Kubernetes

Plex.yaml

apiVersion: v1
kind: Secret
metadata:
  name: plex-claim-token
  namespace: media
type: Opaque
data:
  token: ${API_TOKEN_OPAQUE}
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: plex-config
  namespace: media
  labels:
    app: plex
data:
  TZ: "Europe/London"
  ADVERTISE_IP: "http://192.168.0.123:32400/"
  PLEX_UID: "1000"
  PLEX_GID: "1000"
  CHANGE_CONFIG_DIR_OWNERSHIP: "false"
  ALLOWED_NETWORKS: "192.168.0.0/24"
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: plex
  namespace: media
  labels:
    app: plex
spec:
  replicas: 1
  selector:
    matchLabels:
      app: plex
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: plex
      namespace: media
    spec:
      containers:
        - name: plex
          image: plexinc/pms-docker
          # use resources otherwise logs will eat your ephemeral-storage
          # resulting in root `/` at 100% on nodes and pods becoming 
          # `evicted`
          resources:
            requests:
              memory: "4Gi"
              cpu: "1"
              ephemeral-storage: "2Gi"
            limits:
              memory: "16Gi"
              cpu: "2"
              ephemeral-storage: "4Gi"
          ports:
          # https://support.plex.tv/articles/201543147-what-network-ports-do-i-need-to-allow-through-my-firewall/
          - containerPort: 32400
            name: pms
            protocol: TCP
          - containerPort: 1900
            name: dnla-udp
            protocol: UDP
          - containerPort: 32469
            name: dnla-tcp
            protocol: TCP
          - containerPort: 3005
            name: home-theatre
            protocol: TCP
          - containerPort: 5353
            name: discovery
            protocol: TCP
          - containerPort: 8324
            name: roku
            protocol: TCP
          - containerPort: 32410
            protocol: UDP
          - containerPort: 32412
            protocol: UDP
          - containerPort: 32413
            protocol: UDP
          - containerPort: 32414
            protocol: UDP
          envFrom:
            - configMapRef:
                name: plex-config
          env:
            # Secrets
            - name: PLEX_CLAIM
              valueFrom:
                secretKeyRef:
                  name: plex-claim-token
                  key: token
          volumeMounts:
          - mountPath: /config
            name: config
          - mountPath: /transcode
            name: transcode
          - mountPath: /data
            name: media
      # Only run this at home
      # https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
      # nodeSelector:
      #   topology.kubernetes.io/region: house
      # https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
      affinity:
        nodeAffinity:
          # Only run this at home
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: topology.kubernetes.io/region
                operator: In
                values:
                - house
          # If possible run on the dedicated media box
          preferredDuringSchedulingIgnoredDuringExecution:
          - weight: 1
            preference:
              matchExpressions:
              - key: role
                operator: In
                values:
                - media
      # https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pod-s-dns-policy
      dnsPolicy: ClusterFirst
      dnsConfig:
        nameservers:
          - 192.168.0.122
      volumes:
      - name: config
        hostPath:
          path: /mnt/unionfs/storage/plex/config
          type: DirectoryOrCreate
      - name: transcode
        hostPath:
          path: /mnt/disks/hot-storage/transcodes
          type: DirectoryOrCreate
      - name: media
        hostPath:
          path: /mnt/unionfs/media
          type: DirectoryOrCreate
---
apiVersion: cert-manager.io/v1alpha2
kind: Certificate
metadata:
  name: plex
  namespace: media
spec:
  secretName: plex-certs
  duration: 2160h # 90d
  renewBefore: 360h # 15d
  organization:
  - mydomain
  commonName: plex.mydomain.wtf
  isCA: false
  keySize: 2048
  keyAlgorithm: rsa
  keyEncoding: pkcs1
  usages:
    - server auth
    - client auth
  dnsNames:
  - plex.mydomain.wtf
  issuerRef:
    name: letsencrypt
    kind: ClusterIssuer
    group: cert-manager.io
---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
  name: plex-external-ingress
  namespace: media
  labels:
    app: plex
    tier: frontend
  annotations:
    kubernetes.io/ingress.class: "nginx"
    cert-manager.io/issuer: "letsencrypt"
    nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
spec:
  tls:
  - hosts:
    - plex.mydomain.wtf
    secretName: plex-certs
  rules:
  - host: plex.mydomain.wtf
    http:
      paths:
      - path: /
        backend:
          serviceName: plex-tcp
          servicePort: pms
---
apiVersion: v1
kind: Service
metadata:
  name: plex-udp
  namespace: media
  annotations:
    metallb.universe.tf/allow-shared-ip: plex-svc
  labels:
    app: enternal-dns
spec:
  type: LoadBalancer
  loadBalancerIP: 192.168.0.123
  externalTrafficPolicy: Local
  ports:
    - name: dnla-udp
      port: 1900
      protocol: UDP
      targetPort: dnla-udp
    - name: gdm32410
      port: 32410
      protocol: UDP
      targetPort: 32410
    - name: gdm32412
      port: 32412
      protocol: UDP
      targetPort: 32412
    - name: gdm32413
      port: 32413
      protocol: UDP
      targetPort: 32413
    - name: gdm32414
      port: 32414
      protocol: UDP
      targetPort: 32414
  selector:
    app: plex
  sessionAffinity: None
---
apiVersion: v1
kind: Service
metadata:
  name: plex-tcp
  namespace: media
  annotations:
    metallb.universe.tf/allow-shared-ip: plex-svc
  labels:
    app: plex
spec:
  type: LoadBalancer
  loadBalancerIP: 192.168.0.123
  externalTrafficPolicy: Local
  ports:
    - name: pms
      port: 32400
      protocol: TCP
      targetPort: pms
    - name: home-theatre
      port: 3005
      protocol: TCP
      targetPort: home-theatre
    - name: discovery
      port: 5353
      protocol: TCP
      targetPort: discovery
    - name: roku
      port: 8324
      protocol: TCP
      targetPort: roku
    - name: dnla-tcp
      port: 32469
      protocol: TCP
      targetPort: dnla-tcp
  selector:
    app: plex
  sessionAffinity: None

any idea why discovery might not work?

• pod running fine
• UI available on 32400
• LB works fine
• Endpoints persists which means ports are open

trying to connect via telnet says refused

UPDATE: found the real reason - node not able to open UDP ports (don't know why)

troubleshooting ...

UPDATE#2:

• as usually k8s is k8s =) nothing is working on that darn sth
  
  the issue with k8s 1.23 and calico CNI which is used in microk8s
  kubernetes/kubernetes#107170