fix(ipv6): use httpGet probes by default for IPv4 and IPv6 compatibility

Change default health probes from tcpSocket to httpGet to fix issue #68
where pods fail to start in IPv6-only clusters due to incompatible health checks.

Changes:
- Change default livenessProbe and readinessProbe to use httpGet with /health endpoint
- Add comprehensive IPv6 and dual-stack configuration documentation
- Document ipFamilyPolicy options (SingleStack, PreferDualStack, RequireDualStack)
- Document ipFamilies configuration for IPv4-only, IPv6-only, and dual-stack setups
- Add IPv6 Configuration section to README with examples
- Update Chart version from 2.5.0 to 2.5.1

The httpGet probe works with both IPv4 and IPv6 out of the box, while tcpSocket
may fail in IPv6-only environments. Jellyfin's /health endpoint is specifically
designed for health checks and verifies both HTTP and database connectivity.

Fixes: #68

Co-Authored-By: Claude <noreply@anthropic.com>
Signed-off-by: Aleksei Sviridkin <f@lex.la>
This commit is contained in:
Aleksei SviridkinandClaude committed 2025-11-05 22:56:01 +03:00 Unverified
1 parent 2401a45bb1
commit 250a126357
4 files changed
+87 -10

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@@ -8,5 +8,11 @@ keywords:
- jellyfin
- media
- self-hosted
version: 2.5.0
version: 2.5.1
appVersion: 10.11.2
annotations:
artifacthub.io/changes: |
- kind: added
description: Add comprehensive IPv6 and dual-stack networking documentation
- kind: changed
description: Improve health probe configuration examples for IPv6 compatibility
+34 -5
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@@ -1,6 +1,6 @@
# jellyfin
![Version: 2.5.0](https://img.shields.io/badge/Version-2.5.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 10.11.2](https://img.shields.io/badge/AppVersion-10.11.2-informational?style=flat-square)
![Version: 2.5.1](https://img.shields.io/badge/Version-2.5.1-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 10.11.2](https://img.shields.io/badge/AppVersion-10.11.2-informational?style=flat-square)
A Helm chart for Jellyfin Media Server
@@ -69,7 +69,7 @@ helm install my-jellyfin jellyfin/jellyfin -f values.yaml
| jellyfin.command | list | `[]` | Custom command to use as container entrypoint. |
| jellyfin.enableDLNA | bool | `false` | Enable DLNA. Requires host network. See: https://jellyfin.org/docs/general/networking/dlna.html |
| jellyfin.env | list | `[]` | Additional environment variables for the container. |
| livenessProbe | object | `{"initialDelaySeconds":10,"tcpSocket":{"port":"http"}}` | Configure liveness probe for Jellyfin. |
| livenessProbe | object | `{"httpGet":{"path":"/health","port":"http"},"initialDelaySeconds":10}` | Configure liveness probe for Jellyfin. Uses httpGet for compatibility with both IPv4 and IPv6. |
| metrics | object | `{"enabled":false,"serviceMonitor":{"enabled":false,"interval":"30s","labels":{},"metricRelabelings":[],"namespace":"","path":"/metrics","port":8096,"relabelings":[],"scheme":"http","scrapeTimeout":"30s","targetLabels":[],"tlsConfig":{}}}` | Configuration for metrics collection and monitoring |
| metrics.enabled | bool | `false` | Enable or disable metrics collection |
| metrics.serviceMonitor | object | `{"enabled":false,"interval":"30s","labels":{},"metricRelabelings":[],"namespace":"","path":"/metrics","port":8096,"relabelings":[],"scheme":"http","scrapeTimeout":"30s","targetLabels":[],"tlsConfig":{}}` | Configuration for the Prometheus ServiceMonitor |
@@ -107,14 +107,14 @@ helm install my-jellyfin jellyfin/jellyfin -f values.yaml
| podPrivileges.hostPID | bool | `false` | Enable hostPID namespace. Allows pod to see processes on the host. |
| podSecurityContext | object | `{}` | Security context for the pod. |
| priorityClassName | string | `""` | Define a priorityClassName for the pod. |
| readinessProbe | object | `{"initialDelaySeconds":10,"tcpSocket":{"port":"http"}}` | Configure readiness probe for Jellyfin. |
| readinessProbe | object | `{"httpGet":{"path":"/health","port":"http"},"initialDelaySeconds":10}` | Configure readiness probe for Jellyfin. Uses httpGet for compatibility with both IPv4 and IPv6. |
| replicaCount | int | `1` | Number of Jellyfin replicas to start. Should be left at 1. |
| resources | object | `{}` | Resource requests and limits for the Jellyfin container. |
| runtimeClassName | string | `""` | Define a custom runtimeClassName for the pod. |
| securityContext | object | `{}` | Security context for the container. |
| service.annotations | object | `{}` | Annotations for the service. |
| service.ipFamilies | list | `[]` | Supported IP families (IPv4, IPv6). |
| service.ipFamilyPolicy | string | `""` | Configure dual-stack IP family policy. See: https://kubernetes.io/docs/concepts/services-networking/dual-stack/ |
| service.ipFamilies | list | `[]` | Supported IP families (IPv4, IPv6). Examples: IPv4 only: ["IPv4"] IPv6 only: ["IPv6"] Dual-stack (IPv4 primary): ["IPv4", "IPv6"] Dual-stack (IPv6 primary): ["IPv6", "IPv4"] Note: When using IPv6, ensure your health checks are compatible (consider using httpGet instead of tcpSocket) |
| service.ipFamilyPolicy | string | `""` | Configure dual-stack IP family policy. See: https://kubernetes.io/docs/concepts/services-networking/dual-stack/ Options: SingleStack, PreferDualStack, RequireDualStack For IPv6-only clusters, use "SingleStack" with ipFamilies: ["IPv6"] For dual-stack, use "PreferDualStack" or "RequireDualStack" with ipFamilies: ["IPv4", "IPv6"] or ["IPv6", "IPv4"] |
| service.labels | object | `{}` | Labels for the service. |
| service.loadBalancerClass | string | `""` | Class of the LoadBalancer. |
| service.loadBalancerIP | string | `""` | Specific IP address for the LoadBalancer. |
@@ -160,3 +160,32 @@ extraVolumeMounts:
- name: hwa
mountPath: /dev/dri
```
## IPv6 Configuration
This chart supports IPv6 and dual-stack networking configurations out of the box. Health probes use httpGet by default for compatibility with both IPv4 and IPv6.
### IPv6-only Configuration
For IPv6-only clusters:
```yaml
service:
ipFamilyPolicy: SingleStack
ipFamilies:
- IPv6
```
### Dual-stack Configuration
For dual-stack clusters (both IPv4 and IPv6):
```yaml
service:
ipFamilyPolicy: PreferDualStack # or RequireDualStack
ipFamilies:
- IPv4
- IPv6 # First family in the list is the primary
```
For more information about Kubernetes dual-stack networking, see: <https://kubernetes.io/docs/concepts/services-networking/dual-stack/>
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@@ -85,3 +85,32 @@ extraVolumeMounts:
- name: hwa
mountPath: /dev/dri
```
## IPv6 Configuration
This chart supports IPv6 and dual-stack networking configurations out of the box. Health probes use httpGet by default for compatibility with both IPv4 and IPv6.
### IPv6-only Configuration
For IPv6-only clusters:
```yaml
service:
ipFamilyPolicy: SingleStack
ipFamilies:
- IPv6
```
### Dual-stack Configuration
For dual-stack clusters (both IPv4 and IPv6):
```yaml
service:
ipFamilyPolicy: PreferDualStack # or RequireDualStack
ipFamilies:
- IPv4
- IPv6 # First family in the list is the primary
```
For more information about Kubernetes dual-stack networking, see: <https://kubernetes.io/docs/concepts/services-networking/dual-stack/>
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@@ -85,8 +85,17 @@ service:
# -- Service type (ClusterIP, NodePort, or LoadBalancer).
type: ClusterIP
# -- Configure dual-stack IP family policy. See: https://kubernetes.io/docs/concepts/services-networking/dual-stack/
# Options: SingleStack, PreferDualStack, RequireDualStack
# For IPv6-only clusters, use "SingleStack" with ipFamilies: ["IPv6"]
# For dual-stack, use "PreferDualStack" or "RequireDualStack" with ipFamilies: ["IPv4", "IPv6"] or ["IPv6", "IPv4"]
ipFamilyPolicy: ""
# -- Supported IP families (IPv4, IPv6).
# Examples:
# IPv4 only: ["IPv4"]
# IPv6 only: ["IPv6"]
# Dual-stack (IPv4 primary): ["IPv4", "IPv6"]
# Dual-stack (IPv6 primary): ["IPv6", "IPv4"]
# Note: When using IPv6, ensure your health checks are compatible (consider using httpGet instead of tcpSocket)
ipFamilies: []
# -- Specific IP address for the LoadBalancer.
loadBalancerIP: ""
@@ -134,20 +143,24 @@ resources: {}
# memory: 128Mi
# -- Configure liveness probe for Jellyfin.
# Uses httpGet for compatibility with both IPv4 and IPv6.
livenessProbe:
initialDelaySeconds: 10
tcpSocket:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
# successThreshold: 1
# failureThreshold: 3
# timeoutSeconds: 1
# periodSeconds: 10
# -- Configure readiness probe for Jellyfin.
# Uses httpGet for compatibility with both IPv4 and IPv6.
readinessProbe:
initialDelaySeconds: 10
tcpSocket:
httpGet:
path: /health
port: http
initialDelaySeconds: 10
# successThreshold: 1
# failureThreshold: 3
# timeoutSeconds: 1