K8s operator for Copybird CRD

Simple operator to manage Copybird CRD. Looks for Copybird CRD, creates, updates and removes CronJob resources within cluster based on CRD configurations.

Install locally with minikube

1. Setup a simple k8s cluster with minikube. Make usre kubectl command is working
2. Install operator-framework (see instructions below)
3. Follow instruction from Build & Deploy section below) to setup cluster resources
4. Run operator locally with operator-sdk up local --namespace=default

Local Development

Install operator-framework first:

mkdir -p $GOPATH/src/github.com/operator-framework
cd $GOPATH/src/github.com/operator-framework
git clone https://github.com/operator-framework/operator-sdk
cd operator-sdk
make 
make install

To Update CRD change the CopybirdSpec and CopybirdStatus Go structs:

type CopybirdSpec struct {
...
}
type CopybirdStatus struct {
...
}

Each time we make a change in these structures, we need to run the operator-sdk generate k8s command to update the pkg/apis/copybird/v1alpha1/zz_generated.deepcopy.go file accordingly.

Build & Deploy

To build and deploy image for operator run:

operator-sdk build <your image name>
docker push <your image name>

Then change the image name in the corresponding field in deploy/operator.yaml as well.

With working kubectl command do the following:

# Setup Service Account
kubectl create -f deploy/service_account.yaml

# Setup RBAC
kubectl create -f deploy/role.yaml
kubectl create -f deploy/role_binding.yaml

# Setup the CRD
kubectl create -f deploy/crds/copybird_v1alpha1_copybird_crd.yaml

# Deploy the copybird-operator
kubectl create -f deploy/operator.yaml

And then deploy Copybird CR with:

kubectl create -f deploy/crds/copybird_v1alpha1_copybird_cr.yaml

Run operator locally

operator-sdk up local --namespace=default