forked from rook/rook
Redouane Kachach
b9501bdddb
This change introduce a new argument -p to specify the minikube profile for the new cluster. This way we can have multiple rook clusters running on the same machine. Signed-off-by: Redouane Kachach <rkachach@redhat.com>
101 lines
3.7 KiB
Markdown
101 lines
3.7 KiB
Markdown
---
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title: Developer Environment
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---
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## Install Kubernetes
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You can choose any Kubernetes install of your choice. The test framework only depends on `kubectl`
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being configured. To install `kubectl`, please see the [official guide](https://kubernetes.io/docs/tasks/tools/#kubectl).
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## Minikube
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The developers of Rook are working on Minikube and thus it is the recommended way to quickly get
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Rook up and running. Minikube should not be used for production but the Rook authors
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consider it great for development. While other tools such as k3d/kind are great, users have faced
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issues deploying Rook.
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**Always use a virtual machine when testing Rook. Never use your host system where local devices may mistakenly be consumed.**
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To install Minikube follow the [official
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guide](https://minikube.sigs.k8s.io/docs/start/). It is recommended to use the
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kvm2 driver when running on a Linux machine and the hyperkit driver when running on a MacOS. Both
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allow to create and attach additional disks to the virtual machine. This is required for the Ceph
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OSD to consume one drive. We don't recommend any other drivers for Rook. You will need a Minikube
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version 1.23 or higher.
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Starting the cluster on Minikube is as simple as running:
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```console
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# On Linux
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minikube start --disk-size=40g --extra-disks=1 --driver kvm2
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# On MacOS with Intel processor
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minikube start --disk-size=40g --extra-disks=1 --driver hyperkit
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# On MacOS with Apple silicon
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minikube start --disk-size=40g --extra-disks 1 --driver qemu
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```
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It is recommended to install a Docker client on your host system too. Depending on your operating
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system follow the [official guide](https://docs.docker.com/engine/install/binaries/).
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Stopping the cluster and destroying the Minikube virtual machine can be done with:
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```console
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minikube delete
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```
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## Install Helm
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Use [helm.sh](https://github.com/rook/rook/blob/master/tests/scripts/helm.sh) to install Helm and set up Rook charts defined under `_output/charts` (generated by build):
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- To install and set up Helm charts for Rook run `tests/scripts/helm.sh up`.
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- To clean up `tests/scripts/helm.sh clean`.
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!!! note
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These helper scripts depend on some artifacts under the `_output/` directory generated during build time.
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These scripts should be run from the project root.
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!!! note
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If Helm is not available in your `PATH`, Helm will be downloaded to a temporary directory (`/tmp/rook-tests-scripts-helm`) and used from that directory.
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## Using local Rook image on minikube cluster
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Developers can test quickly their changes by building and using the local Rook image
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on their minikube cluster.
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1) Set the local Docker environment to use minikube:
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```console
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eval $(minikube docker-env -p minikube)
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```
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2) Build your local Rook image. The following command will generate a Rook image
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labeled in the format `local/ceph-<arch>`.
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```console
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cd <your_rook_src_directory>
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make BUILD_REGISTRY=local
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```
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3) Tag the generated image as `rook/ceph:master` so operator will pick it.
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```console
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docker tag "local/ceph-$(go env GOARCH)" 'rook/ceph:master'
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```
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4) Create a Rook cluster in minikube, or if the Rook cluster is already configured, apply the new
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operator image by restarting the operator.
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## Creating a dev cluster
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To accelerate the development process, users have the option to employ the script located
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at `tests/scripts/create-dev-cluster.sh`. This script is designed to rapidly set
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up a new minikube environment, apply the CRDs and the common file, and then utilize the
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`cluster-test.yaml` script to create the Rook cluster. Once setup, users can use the different `*-test.yaml`
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files from the `deploy/examples/` directory to configure their clusters. This script supports
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the possibility of creating multiple rook clusters running on the same machine by using the option
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`-p <profile-name>`.
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