charts/template/CHART_NAME/README.md

<!--- app-name: %%CHART_NAME%% -->

# %%CHART_NAME%%

%%DESCRIPTION%% (check existing examples)

## TL;DR

```console
$ helm repo add my-repo https://charts.bitnami.com/bitnami
$ helm install my-release my-repo/%%CHART_NAME%%
```

## Introduction

%%INTRODUCTION%% (check existing examples)

## Prerequisites

- Kubernetes 1.19+
- Helm 3.2.0+
- 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`:

```console
helm install my-release my-repo/%%CHART_NAME%%
```

The command deploys %%CHART_NAME%% on the Kubernetes cluster in the default configuration. The [Parameters](#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:

```console
helm delete my-release
```

The command removes all the Kubernetes components associated with the chart and deletes the release.

## Parameters

See https://github.com/bitnami-labs/readme-generator-for-helm to create the table

The above parameters map to the env variables defined in [bitnami/%%CHART_NAME%%](https://github.com/bitnami/containers/tree/main/bitnami/%%CHART_NAME%%). For more information please refer to the [bitnami/%%CHART_NAME%%](https://github.com/bitnami/containers/tree/main/bitnami/%%CHART_NAME%%) image documentation.

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

```console
helm install my-release \
  --set %%CHART_NAME%%Username=admin \
  --set %%CHART_NAME%%Password=password \
  --set mariadb.auth.rootPassword=secretpassword \
    my-repo/%%CHART_NAME%%
```

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

> NOTE: Once this chart is deployed, it is not possible to change the application's access credentials, such as usernames or passwords, using Helm. To change these application credentials after deployment, delete any persistent volumes (PVs) used by the chart and re-deploy it, or use the application's built-in administrative tools if available.

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

```console
helm install my-release -f values.yaml my-repo/%%CHART_NAME%%
```

> **Tip**: You can use the default [values.yaml](values.yaml)

## Configuration and installation details

### [Rolling VS Immutable tags](https://docs.bitnami.com/containers/how-to/understand-rolling-tags-containers/)

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.

### External database support

%%IF NEEDED%%

You may want to have %%CHART_NAME%% connect to an external database rather than installing one inside your cluster. Typical reasons for this are to use a managed database service, or to share a common database server for all your applications. To achieve this, the chart allows you to specify credentials for an external database with the [`externalDatabase` parameter](#parameters). You should also disable the MariaDB installation with the `mariadb.enabled` option. Here is an example:

```console
mariadb.enabled=false
externalDatabase.host=myexternalhost
externalDatabase.user=myuser
externalDatabase.password=mypassword
externalDatabase.database=mydatabase
externalDatabase.port=3306
```

### Ingress

%%IF NEEDED%%

This chart provides support for Ingress resources. If you have an ingress controller installed on your cluster, such as [nginx-ingress-controller](https://github.com/bitnami/charts/tree/main/bitnami/nginx-ingress-controller) or [contour](https://github.com/bitnami/charts/tree/main/bitnami/contour) you can utilize the ingress controller to serve your application.

To enable Ingress integration, set `ingress.enabled` to `true`. The `ingress.hostname` property can be used to set the host name. The `ingress.tls` parameter can be used to add the TLS configuration for this host. It is also possible to have more than one host, with a separate TLS configuration for each host. [Learn more about configuring and using Ingress](https://docs.bitnami.com/kubernetes/apps/%%CHART_NAME%%/configuration/configure-use-ingress/).

### TLS secrets

The chart also facilitates the creation of TLS secrets for use with the Ingress controller, with different options for certificate management. [Learn more about TLS secrets](https://docs.bitnami.com/kubernetes/apps/%%CHART_NAME%%/administration/enable-tls/).

### %%OTHER_SECTIONS%%

## Persistence

The [Bitnami %%CHART_NAME%%](https://github.com/bitnami/containers/tree/main/bitnami/%%CHART_NAME%%) image stores the %%CHART_NAME%% data and configurations at the `/bitnami` path of the container. Persistent Volume Claims are used to keep the data across deployments. [Learn more about persistence in the chart documentation](https://docs.bitnami.com/kubernetes/apps/%%CHART_NAME%%/configuration/chart-persistence/).

### Additional environment variables

In case you want to add extra environment variables (useful for advanced operations like custom init scripts), you can use the `extraEnvVars` property.

```yaml
%%CHART_NAME%%:
  extraEnvVars:
    - name: LOG_LEVEL
      value: error
```

Alternatively, you can use a ConfigMap or a Secret with the environment variables. To do so, use the `extraEnvVarsCM` or the `extraEnvVarsSecret` values.

### Sidecars

If additional containers are needed in the same pod as %%CHART_NAME%% (such as additional metrics or logging exporters), they can be defined using the `sidecars` parameter. If these sidecars export extra ports, extra port definitions can be added using the `service.extraPorts` parameter. [Learn more about configuring and using sidecar containers](https://docs.bitnami.com/kubernetes/apps/%%CHART_NAME%%/administration/configure-use-sidecars/).

### Pod affinity

This chart allows you to set your custom affinity using the `affinity` parameter. Find more information about Pod affinity in the [kubernetes documentation](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity).

As an alternative, use one of the preset configurations for pod affinity, pod anti-affinity, and node affinity available at the [bitnami/common](https://github.com/bitnami/charts/tree/main/bitnami/common#affinities) chart. To do so, set the `podAffinityPreset`, `podAntiAffinityPreset`, or `nodeAffinityPreset` parameters.

## Troubleshooting

Find more information about how to deal with common errors related to Bitnami's Helm charts in [this troubleshooting guide](https://docs.bitnami.com/general/how-to/troubleshoot-helm-chart-issues).

## License

Copyright &copy; 2022 Bitnami

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.