stable/drupal

Chart version: 6.2.12
Api version: v1
App version: 8.8.3
DEPRECATED One of the most versatile open source content manage...
application
Chart Type
DEPRECATED
Status
Unknown
License
28362
Downloads
https://charts.helm.sh/stable
Set me up:
helm repo add center https://repo.chartcenter.io
Install Chart:
helm install drupal center/stable/drupal
Versions (0)

Drupal

Drupal is one of the most versatile open source content management systems on the market.

This Helm chart is deprecated

Given the stable deprecation timeline, the Bitnami maintained Drupal 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/drupal

Introduction

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

It also packages the Bitnami MariaDB chart which is required for bootstrapping a MariaDB deployment as a database for the Drupal application.

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/drupal

The command deploys Drupal 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 Drupal 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 Drupal image registry docker.io
image.repository Drupal Image name bitnami/drupal
image.tag Drupal Image tag {TAG_NAME}
image.pullPolicy Drupal image pull policy IfNotPresent
image.pullSecrets Specify docker-registry secret names as an array [] (does not add image pull secrets to deployed pods)
nameOverride String to partially override drupal.fullname template nil
fullnameOverride String to fully override drupal.fullname template nil
drupalProfile Drupal installation profile standard
drupalUsername User of the application user
drupalPassword Application password random 10 character long alphanumeric string
drupalEmail Admin email user@example.com
allowEmptyPassword Allow DB blank passwords yes
extraVars Extra environment variables nil
ingress.enabled Enable ingress controller resource false
ingress.certManager Add annotations for cert-manager false
ingress.hostname Default host for the ingress resource drupal.local
ingress.annotations Ingress annotations {}
ingress.hosts[0].name Hostname to your Drupal installation nil
ingress.hosts[0].path Path within the url structure nil
ingress.tls[0].hosts[0] TLS hosts nil
ingress.tls[0].secretName TLS Secret (certificates) nil
ingress.secrets[0].name TLS Secret Name nil
ingress.secrets[0].certificate TLS Secret Certificate nil
ingress.secrets[0].key TLS Secret Key nil
externalDatabase.user Existing username in the external db bn_drupal
externalDatabase.password Password for the above username nil
externalDatabase.database Name of the existing database bitnami_drupal
mariadb.enabled Whether to use the MariaDB chart true
mariadb.rootUser.password MariaDB admin password nil
mariadb.db.name Database name to create bitnami_drupal
mariadb.db.user Database user to create bn_drupal
mariadb.db.password Password for the database random 10 character long alphanumeric string
service.type Kubernetes Service type LoadBalancer
service.port Service HTTP port 80
service.httpsPort Service HTTPS port 443
service.externalTrafficPolicy Enable client source IP preservation Cluster
service.nodePorts.http Kubernetes http node port ""
service.nodePorts.https Kubernetes https node port ""
persistence.enabled Enable persistence using PVC true
persistence.drupal.storageClass PVC Storage Class for Drupal volume nil (uses alpha storage class annotation)
persistence.drupal.accessMode PVC Access Mode for Drupal volume ReadWriteOnce
persistence.drupal.existingClaim An Existing PVC name nil
persistence.drupal.hostPath Host mount path for Drupal volume nil (will not mount to a host path)
persistence.drupal.size PVC Storage Request for Drupal volume 8Gi
resources CPU/Memory resource requests/limits Memory: 512Mi, CPU: 300m
volumeMounts.drupal.mountPath Drupal data volume mount path /bitnami/drupal
podAnnotations Pod annotations {}
affinity Map of node/pod affinities {}
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/drupal. For more information please refer to the bitnami/drupal image documentation.

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

$ helm install my-release \
  --set drupalUsername=admin,drupalPassword=password,mariadb.mariadbRootPassword=secretpassword \
    stable/drupal

The above command sets the Drupal administrator account username and password to admin and password respectively. Additionally, it sets the MariaDB root user password to secretpassword.

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/drupal

Tip: You can use the default values.yaml

Configuration and installation details

Rolling VS Immutable tags

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.

Image

The image parameter allows specifying which image will be pulled for the chart.

Private registry

If you configure the image value to one in a private registry, you will need to specify an image pull secret.

  1. Manually create image pull secret(s) in the namespace. See this YAML example reference. Consult your image registry’s documentation about getting the appropriate secret.
  2. Note that the imagePullSecrets configuration value cannot currently be passed to helm using the --set parameter, so you must supply these using a values.yaml file, such as:
imagePullSecrets:
  - name: SECRET_NAME
  1. Install the chart

Persistence

The Bitnami Drupal image stores the Drupal data at the /bitnami/drupal path of the container. If you wish to override the image value, and your image stores this data in different path, you may specify these paths with volumeMounts.drupal.mountPath.

Persistent Volume Claims are used to keep the data across deployments. This is known to work in GCE, AWS, and minikube. See the Parameters section to configure the PVC or to disable persistence.

Existing PersistentVolumeClaim

  1. Create the PersistentVolume
  2. Create the PersistentVolumeClaim
  3. Install the chart
$ helm install my-release --set persistence.drupal.existingClaim=PVC_NAME stable/drupal

Host path

System compatibility

  • The local filesystem accessibility to a container in a pod with hostPath has been tested on OSX/MacOS with xhyve, and Linux with VirtualBox.
  • Windows has not been tested with the supported VM drivers. Minikube does however officially support Mounting Host Folders per pod. Or you may manually sync your container whenever host files are changed with tools like docker-sync or docker-bg-sync.

Mounting steps

  1. The specified hostPath directory must already exist (create one if it does not).

  2. Install the chart

    $ helm install my-release --set persistence.drupal.hostPath=/PATH/TO/HOST/MOUNT stable/drupal
    

    This will mount the drupal-data volume into the hostPath directory. The site data will be persisted if the mount path contains valid data, else the site data will be initialized at first launch. 1. Because the container cannot control the host machine’s directory permissions, you must set the Drupal file directory permissions yourself and disable or clear Drupal cache. See Drupal Core’s INSTALL.txt for setting file permissions, and see Drupal handbook page to disable the cache, or Drush handbook to clear cache.

    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 https://github.com/helm/charts/pull/17295 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 2.0.0

    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 2.0.0. The following example assumes that the release name is drupal:

    $ kubectl patch deployment drupal-drupal --type=json -p='[{"op": "remove", "path": "/spec/selector/matchLabels/chart"}]'
    $ kubectl delete statefulset drupal-mariadb --cascade=false