siteconfig-controller

Provide site deployment to Single and Multi Node OpenShift clusters to complete installation

Description

The siteconfig-controller enables users to deploy clusters using either the Assisted Installer or Image Based Installer flows through the ClusterInstance API.

Makefile targets

To see all make targets, run make help for more information on all potential make targets.

GO formatting

GO has automated formatting. To update code and ensure it is formatted properly, run: make fmt

Getting Started

You’ll need a Kubernetes cluster to run against. You can use KIND to get a local cluster for testing, or run against a remote cluster. Note: Your controller will automatically use the current context in your kubeconfig file (i.e. whatever cluster oc cluster-info shows).

Building and deploying image

There are make variables you can set when building the image to customize how it is built and tagged. For example, you can set CONTAINER_TOOL=podman if your build system uses podman instead of docker. To use a custom repository, you can use the IMAGE_TAG_BASE variable.

For example:

# Build and push the image
make IMAGE_TAG_BASE=quay.io/${MY_REPO_ID}/siteconfig-manager VERSION=latest CONTAINER_TOOL=podman \
    docker-push

# Deploy the controller to your SNO (with KUBECONFIG set appropriately)
make IMAGE_TAG_BASE=quay.io/${MY_REPO_ID}/siteconfig-manager VERSION=latest CONTAINER_TOOL=podman \
    install \
    deploy

To watch the siteconfig-controller logs:

oc logs -n siteconfig-operator --selector app.kubernetes.io/name=siteconfig-controller -c manager --follow

Undeploy controller

To delete the CRDs and to remove the controller from the cluster:

make undeploy

How it works

This project aims to follow the Kubernetes Operator pattern.

It uses Controllers, which provide a reconcile function responsible for synchronizing resources until the desired state is reached on the cluster.

Test It Out

1. Install the CRDs into the cluster:

make install

2. Run your controller (this will run in the foreground, so switch to a new terminal if you want to leave it running):

make run

NOTE: You can also run this in one step by running: make install run

Modifying the API definitions

If you are editing the API definitions, generate the manifests such as CRs or CRDs using:

make manifests

More information can be found via the Kubebuilder Documentation

License

Copyright 2023.

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.