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DokuWiki

DokuWiki is a standards-compliant, simple to use wiki optimized for creating documentation. It is targeted at developer teams, workgroups, and small companies. All data is stored in plain text files, so no database is required.

This Helm chart is deprecated

Given the stable deprecation timeline, the Bitnami maintained DokuWiki Helm chart is now located at bitnami/charts.

The Bitnami repository is already included in the Hubs and we will continue providing the same cadence of updates, support, etc that we've been keeping here these years. Installation instructions are very similar, just adding the bitnami repo and using it during the installation (bitnami/<chart> instead of stable/<chart>)

$ helm repo add bitnami https://charts.bitnami.com/bitnami
$ helm install my-release bitnami/<chart>           # Helm 3
$ helm install --name my-release bitnami/<chart>    # Helm 2

To update an exisiting stable deployment with a chart hosted in the bitnami repository you can execute

$ helm repo add bitnami https://charts.bitnami.com/bitnami
$ helm upgrade my-release bitnami/<chart>

Issues and PRs related to the chart itself will be redirected to bitnami/charts GitHub repository. In the same way, we'll be happy to answer questions related to this migration process in this issue created as a common place for discussion.

TL;DR;

$ helm install my-release stable/dokuwiki

Introduction

This chart bootstraps a DokuWiki deployment on a Kubernetes cluster using the Helm package manager.

Bitnami charts can be used with Kubeapps for deployment and management of Helm Charts in clusters. This chart has been tested to work with NGINX Ingress, cert-manager, fluentd and Prometheus on top of the BKPR.

Prerequisites

  • Kubernetes 1.12+
  • Helm 2.11+ or Helm 3.0-beta3+
  • PV provisioner support in the underlying infrastructure
  • ReadWriteMany volumes for deployment scaling

Installing the Chart

To install the chart with the release name my-release:

$ helm install my-release stable/dokuwiki

The command deploys DokuWiki on the Kubernetes cluster in the default configuration. The Parameters section lists the parameters that can be configured during installation.

Tip: List all releases using helm list

Uninstalling the Chart

To uninstall/delete the my-release deployment:

$ helm delete my-release

The command removes all the Kubernetes components associated with the chart and deletes the release.

Parameters

The following table lists the configurable parameters of the DokuWiki chart and their default values.

Parameter Description Default
global.imageRegistry Global Docker image registry nil
global.imagePullSecrets Global Docker registry secret names as an array [] (does not add image pull secrets to deployed pods)
global.storageClass Global storage class for dynamic provisioning nil
image.registry DokuWiki image registry docker.io
image.repository DokuWiki image name bitnami/dokuwiki
image.tag DokuWiki image tag {TAG_NAME}
image.pullPolicy Image pull policy Always
image.pullSecrets Specify docker-registry secret names as an array [] (does not add image pull secrets to deployed pods)
nameOverride String to partially override dokuwiki.fullname template with a string (will prepend the release name) nil
fullnameOverride String to fully override dokuwiki.fullname template with a string nil
dokuwikiUsername User of the application user
dokuwikiFullName User's full name User Name
dokuwikiPassword Application password random 10 character alphanumeric string
dokuwikiEmail User email [email protected]
dokuwikiWikiName Wiki name My Wiki
service.type Kubernetes Service type LoadBalancer
service.port Service HTTP port 80
service.httpsPort Service HTTPS port 443
service.loadBalancerIP Kubernetes LoadBalancerIP to request nil
service.externalTrafficPolicy Enable client source IP preservation Cluster
service.nodePorts.http Kubernetes http node port ""
service.nodePorts.https Kubernetes https node port ""
ingress.enabled Enable ingress controller resource false
ingress.hosts[0].name Hostname to your DokuWiki installation dokuwiki.local
ingress.hosts[0].path Path within the url structure /
ingress.hosts[0].tls Utilize TLS backend in ingress false
ingress.hosts[0].certManager Add annotations for cert-manager false
ingress.hosts[0].tlsSecret TLS Secret (certificates) dokuwiki.local-tls
ingress.hosts[0].annotations Annotations for this host's ingress record []
ingress.secrets[0].name TLS Secret Name nil
ingress.secrets[0].certificate TLS Secret Certificate nil
ingress.secrets[0].key TLS Secret Key nil
persistence.enabled Enable persistence using PVC true
persistence.dokuwiki.storageClass PVC Storage Class for DokuWiki volume nil (uses alpha storage class annotation)
persistence.dokuwiki.accessMode PVC Access Mode for DokuWiki volume ReadWriteOnce
persistence.dokuwiki.size PVC Storage Request for DokuWiki volume 8Gi
resources CPU/Memory resource requests/limits Memory: 512Mi, CPU: 300m
livenessProbe.enabled Enable/disable the liveness probe true
livenessProbe.initialDelaySeconds Delay before liveness probe is initiated 120
livenessProbe.periodSeconds How often to perform the probe 10
livenessProbe.timeoutSeconds When the probe times out 5
livenessProbe.failureThreshold Minimum consecutive failures to be considered failed 6
livenessProbe.successThreshold Minimum consecutive successes to be considered successful 1
readinessProbe.enabled Enable/disable the readiness probe true
readinessProbe.initialDelaySeconds Delay before readinessProbe is initiated 30
readinessProbe.periodSeconds How often to perform the probe 10
readinessProbe.timeoutSeconds When the probe times out 5
readinessProbe.failureThreshold Minimum consecutive failures to be considered failed 6
readinessProbe.successThreshold Minimum consecutive successes to be considered successful 1
nodeSelector Node labels for pod assignment {}
affinity Affinity settings for pod assignment {}
tolerations Toleration labels for pod assignment []
podAnnotations Pod annotations {}
metrics.enabled Start a side-car prometheus exporter false
metrics.image.registry Apache exporter image registry docker.io
metrics.image.repository Apache exporter image name bitnami/apache-exporter
metrics.image.tag Apache exporter image tag {TAG_NAME}
metrics.image.pullPolicy Image pull policy IfNotPresent
metrics.image.pullSecrets Specify docker-registry secret names as an array [] (does not add image pull secrets to deployed pods)
metrics.podAnnotations Additional annotations for Metrics exporter pod {prometheus.io/scrape: "true", prometheus.io/port: "9117"}
metrics.resources Exporter resource requests/limit {}

The above parameters map to the env variables defined in bitnami/dokuwiki. For more information please refer to the bitnami/dokuwiki image documentation.

Specify each parameter using the --set key=value[,key=value] argument to helm install. For example,

$ helm install my-release \
  --set dokuwikiUsername=admin,dokuwikiPassword=password \
    stable/dokuwiki

The above command sets the DokuWiki administrator account username and password to admin and password respectively.

Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,

$ helm install my-release -f values.yaml stable/dokuwiki

Tip: You can use the default values.yaml

Configuration and installation details

It is strongly recommended to use immutable tags in a production environment. This ensures your deployment does not change automatically if the same tag is updated with a different image.

Bitnami will release a new chart updating its containers if a new version of the main container, significant changes, or critical vulnerabilities exist.

Persistence

The Bitnami DokuWiki image stores the DokuWiki data and configurations at the /bitnami/dokuwiki path of the container.

Persistent Volume Claims are used to keep the data across deployments. There is a known issue in Kubernetes Clusters with EBS in different availability zones. Ensure your cluster is configured properly to create Volumes in the same availability zone where the nodes are running. Kuberentes 1.12 solved this issue with the Volume Binding Mode.

See the Parameters section to configure the PVC or to disable persistence.

Upgrading

To 6.0.0

Helm performs a lookup for the object based on its group (apps), version (v1), and kind (Deployment). Also known as its GroupVersionKind, or GVK. Changing the GVK is considered a compatibility breaker from Kubernetes' point of view, so you cannot "upgrade" those objects to the new GVK in-place. Earlier versions of Helm 3 did not perform the lookup correctly which has since been fixed to match the spec.

In helm#17294 the apiVersion of the deployment resources was updated to apps/v1 in tune with the api's deprecated, resulting in compatibility breakage.

This major version signifies this change.

To 3.0.0

Backwards compatibility is not guaranteed unless you modify the labels used on the chart's deployments. Use the workaround below to upgrade from versions previous to 3.0.0. The following example assumes that the release name is dokuwiki:

$ kubectl patch deployment dokuwiki-dokuwiki --type=json -p='[{"op": "remove", "path": "/spec/selector/matchLabels/chart"}]'