butler

README

CharlesCD Butler

Table of contents

1. Getting Started

1.1. Running on the cluster

1.2. Uninstall CRDs

1.3. Undeploy controller

1.4. How it works

1.5. Test It Out

1.6. Modifying the API definitions

5. Contributing

6. License

7. Community

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/samples/

1. Build and push your image to the location specified by IMG:

make docker-build docker-push IMG=<some-registry>/butler:tag

1. Deploy the controller to the cluster with the image specified by IMG:

make deploy IMG=<some-registry>/butler:tag

Uninstall CRDs

To delete the CRDs from the cluster:

make uninstall

Undeploy controller

UnDeploy the controller to the cluster:

make undeploy

How it works

This project aims to follow the Kubernetes Operator pattern

It uses Controllers which provides a reconcile function responsible for synchronizing resources untile the desired state is reached on the cluster

Test It Out

1. Install the CRDs into the cluster:

make install

1. 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

Contributing

If you want to contribute to this module, access our Contributing Guide.

Developer Certificate of Origin - DCO

This is a security layer for the project and for the developers. It is mandatory.

Follow one of these two methods to add DCO to your commits:

1. Command line Follow the steps: Step 1: Configure your local git environment adding the same name and e-mail configured at your GitHub account. It helps to sign commits manually during reviews and suggestions.

git config --global user.name “Name”
git config --global user.email “email@domain.com.br”

Step 2: Add the Signed-off-by line with the '-s' flag in the git commit command:

$ git commit -s -m "This is my commit message"

2. GitHub website You can also manually sign your commits during GitHub reviews and suggestions, follow the steps below:

Step 1: When the commit changes box opens, manually type or paste your signature in the comment box, see the example:

Signed-off-by: Name < e-mail address >

For this method, your name and e-mail must be the same registered on your GitHub account.

License

Apache License 2.0.

Community

Do you have any question about CharlesCD? Let's chat in our forum.