Bitnami charts for Helm are carefully engineered, actively maintained and are the quickest and easiest way to deploy containers on a Kubernetes cluster that are ready to handle production workloads.

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

Get this chart

Download the latest release of the chart from the releases page.

Alternatively, clone the repo if you wish to use the development snapshot:

$ git clone https://github.com/bitnami/charts.git

Installing the Chart

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

$ helm install --name my-release postgresql-x.x.x.tgz

Replace the x.x.x placeholder with the chart release version.

The command deploys PostgreSQL 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 tables lists the configurable parameters of the PostgreSQL chart and their default values.

Parameter	Description	Default
`imageTag`	`bitnami/postgresql` image tag	PostgreSQL image version
`imagePullPolicy`	Image pull policy	`Always` if `imageTag` is `latest`, else `IfNotPresent`
`postgresUser`	PostgreSQL admin user	`postgres`
`postgresPassword`	Ppstgresql password	`nil`
`postgresDb`	Database to create	`nil`

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

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

$ helm install --name my-release \
  --set postgresPassword=secretpassword,postgresDb=my-database \
    postgresql-x.x.x.tgz

The above command sets the PostgreSQL postgres account password to secretpassword. Additionally it creates a database named my-database.

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

$ helm install --name my-release -f values.yaml postgresql-x.x.x.tgz

Tip

: You can use the default values.yaml

Persistence

The Bitnami PostgreSQL image stores the PostgreSQL data and configurations at the /bitnami/postgresql path of the container.

As a placeholder, the chart mounts an emptyDir volume at this location.

"An emptyDir volume is first created when a Pod is assigned to a Node, and exists as long as that Pod is running on that node. When a Pod is removed from a node for any reason, the data in the emptyDir is deleted forever."

For persistence of the data you should replace the emptyDir volume with a persistent storage volume, else the data will be lost if the Pod is shutdown.

Step 1: Create a persistent disk

You first need to create a persistent disk in the cloud platform your cluster is running. For example, on GCE you can use the gcloud tool to create a gcePersistentDisk:

$ gcloud compute disks create --size=500GB --zone=us-central1-a postgresql-data-disk

Step 2: Update `templates/deployment.yaml`

Replace:

      volumes:
      - name: postgresql-data
        emptyDir: {}

with

      volumes:
      - name: postgresql-data
        gcePersistentDisk:
          pdName: postgresql-data-disk
          fsType: ext4

Install the chart after making these changes.

README.md

PostgreSQL

TL;DR;

Introduction