@helm-charts/bitnami-ghost v6.7.9-0.1.0

@helm-charts/bitnami-ghost

A simple, powerful publishing platform that allows you to share your stories with the world

## Global Docker image parameters
## Please, note that this will override the image parameters, including dependencies, configured to use the global value
## Current available global Docker image parameters: imageRegistry and imagePullSecrets
##
# global:
#   imageRegistry: myRegistryName
#   imagePullSecrets:
#     - myRegistryKeySecretName

## Bitnami Ghost image version
## ref: https://hub.docker.com/r/bitnami/ghost/tags/
##
image:
  registry: docker.io
  repository: bitnami/ghost
  tag: 2.20.1
  ## Specify a imagePullPolicy
  ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
  ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images
  ##
  pullPolicy: IfNotPresent
  ## Optionally specify an array of imagePullSecrets.
  ## Secrets must be manually created in the namespace.
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
  ##
  # pullSecrets:
  #   - myRegistryKeySecretName

## Init containers parameters:
## volumePermissions: Change the owner of the persist volume mountpoint to RunAsUser:fsGroup
##
volumePermissions:
  image:
    registry: docker.io
    repository: bitnami/minideb
    tag: latest
    pullPolicy: Always
    ## Optionally specify an array of imagePullSecrets.
    ## Secrets must be manually created in the namespace.
    ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
    ##
    # pullSecrets:
    #   - myRegistryKeySecretName

## Ghost protocol, host, port and path to create application URLs
## ref: https://github.com/bitnami/bitnami-docker-ghost#configuration
##
ghostProtocol: http
# ghostHost:
# ghostPort:
ghostPath: /

## User of the application
## ref: https://github.com/bitnami/bitnami-docker-ghost#configuration
##
ghostUsername: user@example.com

## Application password
## Defaults to a random 10-character alphanumeric string if not set
## ref: https://github.com/bitnami/bitnami-docker-ghost#configuration
##
# ghostPassword:

## Admin email
## ref: https://github.com/bitnami/bitnami-docker-ghost#configuration
##
ghostEmail: user@example.com

## Ghost Blog name
## ref: https://github.com/bitnami/bitnami-docker-ghost#environment-variables
##
ghostBlogTitle: User's Blog

## Set to `yes` to allow the container to be started with blank passwords
## ref: https://github.com/bitnami/bitnami-docker-wordpress#environment-variables
allowEmptyPassword: 'yes'

## SMTP mail delivery configuration
## ref: https://github.com/bitnami/bitnami-docker-redmine/#smtp-configuration
##
# smtpHost:
# smtpPort:
# smtpUser:
# smtpPassword:
# smtpFromAddress
# smtpService:

##
## External database configuration
##
externalDatabase:
  ## Database host
  # host:
  ## Database port
  # port:
  ## Database user
  # user: bn_ghost
  ## Database password
  # password:
  ## Database name
  # database: bitnami_ghost

##
## MariaDB chart configuration
##
## https://github.com/helm/charts/blob/master/stable/mariadb/values.yaml
##
mariadb:
  ## Whether to deploy a mariadb server to satisfy the applications database requirements. To use an external database set this to false and configure the externalDatabase parameters
  enabled: true
  ## Disable MariaDB replication
  replication:
    enabled: false

  ## Create a database and a database user
  ## ref: https://github.com/bitnami/bitnami-docker-mariadb/blob/master/README.md#creating-a-database-user-on-first-run
  ##
  db:
    name: bitnami_ghost
    user: bn_ghost
    ## If the password is not specified, mariadb will generates a random password
    ##
    # password:

  ## MariaDB admin password
  ## ref: https://github.com/bitnami/bitnami-docker-mariadb/blob/master/README.md#setting-the-root-password-on-first-run
  ##
  # rootUser:
  #   password:

  ## Enable persistence using Persistent Volume Claims
  ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
  ##
  master:
    persistence:
      enabled: true
      ## mariadb data Persistent Volume Storage Class
      ## If defined, storageClassName: <storageClass>
      ## If set to "-", storageClassName: "", which disables dynamic provisioning
      ## If undefined (the default) or set to null, no storageClassName spec is
      ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
      ##   GKE, AWS & OpenStack)
      ##
      # storageClass: "-"
      accessMode: ReadWriteOnce
      size: 8Gi

## Kubernetes configuration
## For minikube, set this to NodePort, elsewhere use LoadBalancer
##
service:
  type: LoadBalancer
  # HTTP Port
  port: 80
  ## loadBalancerIP:
  ##
  ## nodePorts:
  ##   http: <to set explicitly, choose port between 30000-32767>
  nodePorts:
    http: ''
  ## Enable client source IP preservation
  ## ref http://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/#preserving-the-client-source-ip
  ##
  externalTrafficPolicy: Cluster
  ## Service annotations done as key:value pairs
  annotations:

## Pod Security Context
## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
##
securityContext:
  enabled: true
  fsGroup: 1001
  runAsUser: 1001

## Enable persistence using Persistent Volume Claims
## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
##
persistence:
  enabled: true
  ## ghost data Persistent Volume Storage Class
  ## If defined, storageClassName: <storageClass>
  ## If set to "-", storageClassName: "", which disables dynamic provisioning
  ## If undefined (the default) or set to null, no storageClassName spec is
  ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
  ##   GKE, AWS & OpenStack)
  ##
  # storageClass: "-"
  accessMode: ReadWriteOnce
  size: 8Gi
  path: /bitnami

## Configure resource requests and limits
## ref: http://kubernetes.io/docs/user-guide/compute-resources/
##
resources:
  requests:
    memory: 512Mi
    cpu: 300m

## Configure the ingress resource that allows you to access the
## Ghost installation. Set up the URL
## ref: http://kubernetes.io/docs/user-guide/ingress/
##
ingress:
  ## Set to true to enable ingress record generation
  enabled: false

  ## Set this to true in order to add the corresponding annotations for cert-manager
  certManager: false

  ## Ingress annotations done as key:value pairs
  ## For a full list of possible ingress annotations, please see
  ## ref: https://github.com/kubernetes/ingress-nginx/blob/master/docs/annotations.md
  ##
  ## If tls is set to true, annotation ingress.kubernetes.io/secure-backends: "true" will automatically be set
  ## If certManager is set to true, annotation kubernetes.io/tls-acme: "true" will automatically be set
  annotations:
  #  kubernetes.io/ingress.class: nginx

  ## The list of hostnames to be covered with this ingress record.
  ## Most likely this will be just one host, but in the event more hosts are needed, this is an array
  hosts:
    - name: ghost.local
      path: /

      ## Set this to true in order to enable TLS on the ingress record
      tls: false

      ## Optionally specify the TLS hosts for the ingress record
      ## Useful when the Ingress controller supports www-redirection
      ## If not specified, the above host name will be used
      # tlsHosts:
      # - www.ghost.local
      # - ghost.local

      ## If TLS is set to true, you must declare what secret will store the key/certificate for TLS
      tlsSecret: ghost.local-tls

  secrets:
  ## If you're providing your own certificates, please use this to add the certificates as secrets
  ## key and certificate should start with -----BEGIN CERTIFICATE----- or
  ## -----BEGIN RSA PRIVATE KEY-----
  ##
  ## name should line up with a tlsSecret set further up
  ## If you're using cert-manager, this is unneeded, as it will create the secret for you if it is not set
  ##
  ## It is also possible to create and manage the certificates outside of this helm chart
  ## Please see README.md for more information
  # - name: ghost.local-tls
  #   key:
  #   certificate:

Ghost

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

TL;DR;

$ helm install stable/ghost

Introduction

This chart bootstraps a Ghost 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 for the database requirements of the Ghost 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 1.4+ with Beta APIs enabled
• PV provisioner support in the underlying infrastructure

Installing the Chart

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

$ helm install --name my-release stable/ghost

The command deploys Ghost on the Kubernetes cluster in the default configuration. The configuration 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.

Configuration

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

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

Note:

For the Ghost application function correctly, you should specify the ghostHost parameter to specify the FQDN (recommended) or the public IP address of the Ghost service.

Optionally, you can specify the ghostLoadBalancerIP parameter to assign a reserved IP address to the Ghost service of the chart. However please note that this feature is only available on a few cloud providers (f.e. GKE).

To reserve a public IP address on GKE:

$ gcloud compute addresses create ghost-public-ip

The reserved IP address can be assigned to the Ghost service by specifying it as the value of the ghostLoadBalancerIP parameter while installing the chart.

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

$ helm install --name my-release \
  --set ghostUsername=admin,ghostPassword=password,mariadb.mariadbRootPassword=secretpassword \
    stable/ghost

The above command sets the Ghost 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 --name my-release -f values.yaml stable/ghost

Tip: You can use the default values.yaml

Using an existing database

Sometimes you may want to have Ghost connect to an external database rather than installing one inside your cluster, e.g. to use a managed database service, or use run a single database server for all your applications. To do this, the chart allows you to specify credentials for an external database under the externalDatabase parameter. You should also disable the MariaDB installation with the mariadb.enabled option. For example:

$ helm install stable/ghost \
    --set mariadb.enabled=false,externalDatabase.host=myexternalhost,externalDatabase.user=myuser,externalDatabase.password=mypassword,externalDatabase.database=mydatabase

Persistence

The Bitnami Ghost image stores the Ghost data and configurations at the /bitnami/ghost and /bitnami/apache paths of the container.

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

Upgrading

To 5.0.0

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 5.0.0. The following example assumes that the release name is ghost:

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