# Development

### Pre-requisites

#### Access to Kubernetes cluster

First of all, you will need access to a Kubernetes cluster. The easiest way to start is minikube.

* [Virtualbox](https://www.virtualbox.org/wiki/Downloads) - hypervisor to run a Kubernetes cluster
* [Minikube](https://kubernetes.io/docs/setup/minikube/) - for Kubernetes cluster creation on local machine
* [Kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/) - to interact with Kubernetes cluster

#### Tools to build an Operator

Apart from kubernetes cluster, there are some tools which are needed to build and test the redis operator.

Required Tools:-

* [Git](https://git-scm.com/downloads)
* [Go](https://golang.org/dl/)
* [Docker](https://docs.docker.com/install/)
* [Operator SDK](https://github.com/operator-framework/operator-sdk/blob/v0.8.1/doc/user/install-operator-sdk.md)
* [Make](https://www.gnu.org/software/make/manual/make.html)

### Build Locally

To achieve this, execute this command:-

```bash
make build
```

### Build Image

Redis operator gets packaged as a container image for running on the Kubernetes cluster. These instructions will guide you to build an image.

```bash
make build-image
```

### Testing

If you want to play it on Kubernetes. You can use a minikube.

```bash
# Start minikube
minikube start --vm-driver virtualbox

# Deploy the image on minikube
helm upgrade redis-cluster ./helm/redis-setup \
    --set redisSetup.setupMode="cluster" \
    --set redisSetup.clusterSize=3 \
    --install --namespace redis-operator
```

#### Run Tests

```bash
make test
```