Install on a Kubernetes cluster using Helm charts

The instructions in this article describe the installation of Datalore Enterprise in a Kubernetes cluster using Helm.

It is highly recommended that you have experience using the Kubernetes technology, particularly Helm. For the PoC purpose, we suggest trying the Docker-based installation.

Prerequisites

Before installation, make sure that you have the following:

k8s cluster
Kubectl on your machine pointed to this cluster
Helm

This installation was tested with Kubernetes v1.24 and Helm v3.2.4, but other versions may work too.

Hardware requirements

Datalore server machine: 4GB of RAM (the number of CPU is irrelevant if the load is not high)
For every concurrently run notebook: from 4GB of RAM

Basic Datalore installation

Follow the instruction to install Datalore using Helm.

Install Datalore

Add the Datalore Helm repository:
$ helm repo add datalore https://jetbrains.github.io/datalore-configs/charts
Create a datalore.values.yaml file.
In datalore.values.yaml, add a databaseSecret parameter to set up your database password. A random string is advised.
databaseSecret: password: xxxx
Configure your volumes. In datalore.values.yaml, add the following parameters:
volumes: - name: storage ... - name: postgresql-data ...
where:
- storage: contains workbook data, such as attached files (UID:GID 5000:5000).
- postgresql-data: contains PostgreSQL database data (UID:GID 999:999).
Make sure that you back up the content of the storage and postgresql-data volumes regularly.
Below are exemplary procedures of configuring your volumes:
Configure hostPath volumes
1. Create directories:
  mkdir -p /data/postgresql mkdir -p /data/datalore chown 999:999 /data/postgresql chown 5000:5000 /data/datalore
2. Add to datalore.values.yaml:
  volumes: - name: postgresql-data hostPath: path: /data/postgresql type: Directory - name: storage hostPath: path: /data/datalore type: Directory
Use volumeClaimTemplates
If you set up volume auto-provisioning in Kubernetes, you can replace volumes with volumeClaimTemplates.
volumeClaimTemplates: - metadata: name: storage spec: accessModes: - ReadWriteOnce resources: requests: storage: 10Gi - metadata: name: postgresql-data spec: accessModes: - ReadWriteOnce resources: requests: storage: 2Gi
Run the following command and wait for Datalore to start up:
helm install -f datalore.values.yaml datalore datalore/datalore --version 0.2.6
You can run kubectl port-forward svc/datalore 8080 to test if Datalore can start up. However, to make it accessible, make sure you configure ingress.
Below is a plain http ingress setup example:
ingress: enabled: true hosts: - host: datalore.mycompany.com paths: - path: / pathType: Prefix
Go to http://127.0.0.1:8080/ and sign up the first user. The first signed-up user will automatically receive admin rights.
Unless the email service is configured, there is no registration confirmation. You can log in right after providing the credentials.
To access Datalore by a domain other than 127.0.0.1, add a URL with this host as the DATALORE_PUBLIC_URL parameter in the datalore.values.yaml file.
For example, if you want to use the https://datalore.yourcompany.com domain, add the following:
dataloreEnv: ... DATALORE_PUBLIC_URL: "https://datalore.yourcompany.com"
- Make sure the URL does not contain a trailing slash.
- You will need to configure your DNS yourself.
Click your avatar in the upper-right corner, select Admin panel | License and provide your license key.

Optional procedures

Run Datalore in a non-default namespace

When running Datalore, specify the namespace:
helm install -n <non_default_namespace> -f datalore.values.yaml datalore datalore/datalore --version 0.2.6
(Optional) If you use a custom config, add the namespace under the agentsConfig key as shown in the code below:
k8s: namespace: <non_default_namespace> instances: ...

Use an external postgres database

Add two variables under dataloreEnv: database user and database URL.
dataloreEnv: ... DB_USER: "<database_user>" DB_URL: "jdbc:postgresql://[database_host]:[database_port]/[database_name]"
Set internalDatabase to false.

Last modified: 02 March 2023