htpc/k8s/jellyfin/deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: jellyfin
  namespace: htpc
  labels:
    app.kubernetes.io/name: jellyfin
    app.kubernetes.io/part-of: htpc
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: jellyfin
  template:
    metadata:
      labels:
        app: jellyfin
        app.kubernetes.io/name: jellyfin
        app.kubernetes.io/part-of: htpc
    spec:
      nodeSelector:
        kubernetes.io/hostname: vmserver
      initContainers:
        - name: migrate-config
          image: lscr.io/linuxserver/jellyfin:latest
          imagePullPolicy: IfNotPresent
          command:
            - /bin/bash
            - -c
            - |
              if [ ! -f /config/system.xml ] && [ -f /host-etc/system.xml ]; then
                echo "Syncing Jellyfin configuration from /etc/jellyfin..."
                cp -a /host-etc/* /config/
                sed -i 's|<MetadataPath>/var/lib/jellyfin/metadata</MetadataPath>|<MetadataPath>/config/metadata</MetadataPath>|g' /config/system.xml || true
                sed -i 's|<CachePath>/var/cache/jellyfin</CachePath>|<CachePath>/config/cache</CachePath>|g' /config/system.xml || true
              fi

              mkdir -p /config/data/data /config/data/root /config/data/plugins /config/metadata /config/cache /config/log

              # Move misplaced database files into /config/data/data if needed
              if [ -f /config/data/jellyfin.db ]; then
                echo "Relocating database files from /config/data to /config/data/data..."
                mv -n /config/data/*.db* /config/data/data/ 2>/dev/null || true
                mv -n /config/data/playlists /config/data/data/ 2>/dev/null || true
                mv -n /config/data/subtitles /config/data/data/ 2>/dev/null || true
                mv -n /config/data/ScheduledTasks /config/data/data/ 2>/dev/null || true
                mv -n /config/data/SQLiteBackups /config/data/data/ 2>/dev/null || true
                mv -n /config/data/attachments /config/data/data/ 2>/dev/null || true
                mv -n /config/data/device.txt /config/data/data/ 2>/dev/null || true
                mv -n /config/data/splashscreen.png /config/data/data/ 2>/dev/null || true
              fi

              if [ ! -f /config/data/data/jellyfin.db ] && [ -d /host-data/data ]; then
                echo "Syncing data from /var/lib/jellyfin/data..."
                cp -a /host-data/data/* /config/data/data/ || true
              fi

              if [ ! -d /config/metadata/library ] && [ -d /host-data/metadata ]; then
                echo "Syncing metadata from /var/lib/jellyfin/metadata..."
                cp -a /host-data/metadata/* /config/metadata/ || true
              fi

              if [ ! -d /config/data/plugins/configurations ] && [ -d /host-data/plugins ]; then
                echo "Syncing plugins from /var/lib/jellyfin/plugins..."
                cp -a /host-data/plugins/* /config/data/plugins/ || true
              fi

              if [ ! -d /config/data/root/default ] && [ -d /host-data/root ]; then
                echo "Syncing root library structure from /var/lib/jellyfin/root..."
                cp -a /host-data/root/* /config/data/root/ || true
              fi

              [ ! -e /config/root ] && ln -sf /config/data/root /config/root || true
              [ ! -e /config/plugins ] && ln -sf /config/data/plugins /config/plugins || true

              # Legacy compatibility for historical paths pointing to /var/lib/jellyfin
              mkdir -p /config/legacy-jellyfin
              ln -sfn /config/data/root /config/legacy-jellyfin/root
              ln -sfn /config/metadata /config/legacy-jellyfin/metadata
              ln -sfn /config/data/data /config/legacy-jellyfin/data
              chmod 755 /config/legacy-jellyfin
              chown -R 33:33 /config/legacy-jellyfin

              chown -R 33:33 /config
          volumeMounts:
            - name: config
              mountPath: /config
            - name: host-etc
              mountPath: /host-etc
              readOnly: true
            - name: host-data
              mountPath: /host-data
              readOnly: true
      containers:
        - name: jellyfin
          image: lscr.io/linuxserver/jellyfin:latest
          imagePullPolicy: IfNotPresent
          securityContext:
            privileged: true
          env:
            - name: PUID
              value: "33"
            - name: PGID
              value: "33"
            - name: TZ
              value: "Europe/Amsterdam"
            - name: DOTNET_gcServer
              value: "0"
            - name: DOTNET_GCHeapHardLimit
              value: "0x160000000"
            - name: DOTNET_GCLargeObjectHeapCompactionMode
              value: "1"
          ports:
            - name: http
              containerPort: 8096
              hostPort: 8096
          resources:
            requests:
              cpu: 200m
              memory: 1Gi
            limits:
              cpu: 4000m
              memory: 8Gi
          volumeMounts:
            - name: config
              mountPath: /config
            - name: datadisk
              mountPath: /datadisk
            - name: mnt-mp3
              mountPath: /mnt/mp3
            - name: dri
              mountPath: /dev/dri
            - name: config
              mountPath: /var/lib/jellyfin
              subPath: legacy-jellyfin
          livenessProbe:
            httpGet:
              path: /jellyfin/health
              port: 8096
            initialDelaySeconds: 60
            periodSeconds: 20
            timeoutSeconds: 5
          readinessProbe:
            httpGet:
              path: /jellyfin/health
              port: 8096
            initialDelaySeconds: 30
            periodSeconds: 10
            timeoutSeconds: 5
      volumes:
        - name: config
          persistentVolumeClaim:
            claimName: jellyfin-config
        - name: datadisk
          hostPath:
            path: /datadisk
            type: Directory
        - name: mnt-mp3
          hostPath:
            path: /mnt/mp3
            type: Directory
        - name: dri
          hostPath:
            path: /dev/dri
            type: Directory
        - name: host-etc
          hostPath:
            path: /etc/jellyfin
            type: DirectoryOrCreate
        - name: host-data
          hostPath:
            path: /var/lib/jellyfin
            type: DirectoryOrCreate