# Installing Helm chart

Once you have customized the Helm chart, you can install it. You can also overwrite Helm chart parameters directly in the installation command, see [#openshift-test](#openshift-test "mention").

## General installation command <a href="#general-command" id="general-command"></a>

Use the following command to install the latest SonarQube Community Build Helm chart.

```sh
helm repo add sonarqube https://SonarSource.github.io/helm-chart-sonarqube
helm repo update
kubectl create namespace sonarqube
export MONITORING_PASSCODE="yourPasscode"
helm upgrade --install -n sonarqube sonarqube sonarqube/sonarqube --set community.enabled=true,monitoringPasscode=$MONITORING_PASSCODE
```

{% hint style="info" %}

* To specify the version to be installed, use the `community.buildNumber` parameter. By default, the latest version is installed.
* The parameters after `--set` can also be defined in the Helm chart.
* The monitoring Passcode is required for the helm upgrade operation. See [Setting up monitoring](/sonarqube-community-build/server-installation/on-kubernetes-or-openshift/set-up-monitoring.md) for a better way to store the monitoring passcode used to authenticate to the Web API.
  {% endhint %}

## Example: installing on OpenShift <a href="#openshift-test" id="openshift-test"></a>

```sh
helm repo add sonarqube https://SonarSource.github.io/helm-chart-sonarqube
helm repo update
kubectl create namespace sonarqube
export MONITORING_PASSCODE="yourPasscode"
export JDBC_URL="jdbc:postgresql://myPostgres/myDatabase"
export JDBC_USERNAME="jdbc-username"
export JDBC_PASSWORD_SECRET_NAME="jdbc-secret"
export JDBC_PASSWORD_SECRET_KEY="jdbc-password"
helm upgrade --install -n sonarqube sonarqube sonarqube/sonarqube \
 --set OpenShift.enabled=true \
 --set community.enabled=true \
 --set monitoringPasscode=$MONITORING_PASSCODE \
 --set jdbcOverwrite.jdbcUrl=$JDBC_URL \
 --set jdbcOverwrite.jdbcUsername=$JDBC_USERNAME \
 --set jdbcOverwrite.jdbcSecretName=$JDBC_PASSWORD_SECRET_NAME \
 --set jdbcOverwrite.jdbcSecretPasswordKey=$JDBC_PASSWORD_SECRET_KEY
```

## Setting up an external database for testing

The chart requires an external database. If you want to perform a quick test, install [a PostgreSQL chart](https://artifacthub.io/packages/helm/bitnami/postgresql) on your cluster. See this [setup example](https://github.com/SonarSource/helm-chart-sonarqube/blob/master/.github/scripts/setup_external_postgres.sh) for guidance. For more information and settings, refer to the [chart documentation](https://artifacthub.io/packages/helm/sonarqube/sonarqube).

After installing the database, set the following values accordingly: `jdbcOverwrite.jdbcUrl`, `jdbcOverwrite.jdbcUsername`, `jdbcOverwrite.jdbcSecretName`, and `jdbcOverwrite.jdbcSecretPasswordKey`.

## Related pages

* [Customizing Helm chart](/sonarqube-community-build/server-installation/on-kubernetes-or-openshift/customizing-helm-chart.md)
* [Setting up monitoring](/sonarqube-community-build/server-installation/on-kubernetes-or-openshift/set-up-monitoring.md)


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