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86 lines
3.9 KiB
Markdown
86 lines
3.9 KiB
Markdown
# Node
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[Node](https://www.nodejs.org) Event-driven I/O server-side JavaScript environment based on V8
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## TL;DR;
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```console
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$ helm install incubator/node
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```
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## Introduction
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This chart bootstraps a [Node](https://github.com/bitnami/bitnami-docker-node) deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
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It clones and deploys a Node.js application from a git repository.
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## Prerequisites
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- Kubernetes 1.4+ with Beta APIs enabled
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- PV provisioner support in the underlying infrastructure
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## Installing the Chart
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To install the chart with the release name `my-release`:
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```console
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$ helm install --name my-release incubator/node
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```
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The command deploys Node.js on the Kubernetes cluster in the default configuration. The [configuration](#configuration) section lists the parameters that can be configured during installation. Also includes support for MariaDB chart out of the box.
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Due that the Helm Chart clones the application on the /app volume while the container is initializing, a persistent volume is not required.
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> **Tip**: List all releases using `helm list`
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## Uninstalling the Chart
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To uninstall/delete the `my-release` deployment:
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```console
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$ helm delete my-release
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```
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The command removes all the Kubernetes components associated with the chart and deletes the release.
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## Configuration
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The following tables lists the configurable parameters of the Node chart and their default values.
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| Parameter | Description | Default |
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|-------------------------------|-------------------------------------|-------------------------------------------------------|
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| `image` | Node image | `bitnami/node:{VERSION}` |
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| `imagePullPolicy` | Image pull policy | `IfNotPresent` |
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| `repository` | Repo of the application | `git@github.com:jbianquetti-nami/simple-node-app.git` |
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| `revision` | Revision to checkout | `master` |
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| `mariadb.mariadbRootPassword` | MariaDB admin password | `nil` |
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| `serviceType` | Kubernetes Service type | `LoadBalancer` |
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| `resources` | CPU/Memory resource requests/limits | Memory: `512Mi`, CPU: `300m` |
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The above parameters map to the env variables defined in [bitnami/node](http://github.com/bitnami/bitnami-docker-node). For more information please refer to the [bitnami/node](http://github.com/bitnami/bitnami-docker-node) image documentation.
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Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
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```console
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$ helm install --name my-release \
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--set repository=https://github.com/jbianquetti-nami/simple-node-app.git,mariadb.mariadbRootPassword=secretpassword \
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incubator/node
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```
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The above command clones the remote git repository to the `/app/` directory of the container. Additionally it sets the MariaDB `root` user password to `secretpassword`.
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Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
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```console
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$ helm install --name my-release -f values.yaml incubator/node
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```
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> **Tip**: You can use the default [values.yaml](values.yaml)
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## Persistence
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The [Bitnami Node](https://github.com/bitnami/bitnami-docker-node) image stores the Node application and configurations at the `/app` path of the container.
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Persistent Volume Claims are used to keep the data across deployments. This is known to work in GCE, AWS, and minikube.
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See the [Configuration](#configuration) section to configure the PVC or to disable persistence.
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