start project
$ mkdir -p $HOME/projects/example-inc/
Create a new app-operator project
$ cd $HOME/projects/example-inc/
$ operator-sdk new app-operator --repo github.com/example-inc/app-operator
$ cd app-operator
Add a new API for the custom resource AppService
$ operator-sdk add api --api-version=app.example.com/v1alpha1 --kind=AppService
Add a new controller that watches for AppService
$ operator-sdk add controller --api-version=app.example.com/v1alpha1 --kind=AppService
Build and push the app-operator image to a public registry such as quay.io
$ operator-sdk build quay.io//app-operator
Login to public registry such as quay.io
$ docker login quay.io
Push image
$ docker push quay.io//app-operator
Update the operator manifest to use the built image name (if you are performing these steps on OSX, see note below)
$ sed -i 's|REPLACE_IMAGE|quay.io//app-operator|g' deploy/operator.yaml
On OSX use:
$ sed -i "" 's|REPLACE_IMAGE|quay.io//app-operator|g' deploy/operator.yaml
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/app.example.com_appservices_crd.yaml
Deploy the app-operator
$ kubectl create -f deploy/operator.yaml
Create an AppService CR
The default controller will watch for AppService objects and create a pod for each CR
$ kubectl create -f deploy/crds/app.example.com_v1alpha1_appservice_cr.yaml