Logical Kubernetes as a Service

• L-KaaS is a project focused on providing declarative APIs and tooling to simplify, abstract, be easy to use for users who don’t have deep technical knowledge of infrastructure and shield them from low-level concepts and technologies.

Goals of L-KaaS

• Powerful abstraction implemented on top of existing project Cluster API

• Provide a simple, automatic, and easy-to-manage lifecycle of multi-Kubernetes clusters using declarative methods.

• Based on GitOps supports, taking advantage of git for management from Day 0 through Day 2.

• Reuse and integrate existing ecosystems (Cluster API,..) rather than duplicating their functionality.

• Simplifying and uniform automation all the way to onboarding, the complexity of provisioning and managing a multi-provider, multi-site deployment of underlying cloud infrastructure or distributed cloud, getting rid of all complex configurations

Documentation

This is a very early development; right now it is just a starter page with links to other resources. In time we develop comprehensive documentation. For concepts, glossary, designs, see Docs

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 kubectl cluster-info shows).

Running on the cluster

1. Install Instances of Custom Resources:

kubectl apply -f config/crd/bases/
kubectl apply -f config/samples/profiles/
kubectl apply -f config/samples/clustercatalogs/

2. Install Cluster API Controllers

./hack/capi-install.sh

3. Run Controllers

make run

4. Create Logical Cluster

kubectl apply -f config/samples/intent_v1_logicalcluster.yaml

Uninstall CRDs

To delete the CRDs from the cluster:

make uninstall

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

NOTE: Run make --help for more information on all potential make targets

More information can be found via the Kubebuilder Documentation

License

Copyright 2023 Nguyen Thanh Nguyen.

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.