Enable kubebuilder-plugin for operator-sdk

To use kubebuilder-plugin for java operators we need to clone the operator-sdk repo.

Updates in Operator-SDK go.mod

• Add the kubebuilder plugin to go.mod

github.com/java-operator-sdk/kubebuilder-plugin v0.0.0-20210225171707-e42ea87455e3

• Replace the kubebuilder-plugin path in go-mod pointing to the local dir of your kube-builder repo. Example.

github.com/java-operator-sdk/kubebuilder-plugin => /Users/sushah/go/src/github.com/sujil02/kubebuilder-plugin

Updates in Operator-SDK internal/cmd/operator-sdk/cli/cli.go

• Add the java-operator-sdk import

javav1 "github.com/java-operator-sdk/kubebuilder-plugin/pkg/java/v1"

• Introduce the java bundle in GetPluginsCLIAndRoot() method.

javaBundle, _ := plugin.NewBundle("quarkus"+plugins.DefaultNameQualifier, plugin.Version{Number: 1},
		&javav1.Plugin{},
	)

• Add the created javaBundle to the cli.New

    cli.WithPlugins(
			ansibleBundle,
			gov2Bundle,
			gov3Bundle,
			helmBundle,
			javaBundle,
		),

Build and Install the Operator-SDK

go mod tidy
make install

Now that the plugin is integrated with the operator-sdk you can run the init command to generate the sample java operator

• Use the quarkus plugin flag
• Pick the domain and project name as prefered.

operator-sdk init --plugins quarkus --domain xyz.com --project-name java-op

Once the operator is scaffolded check for the following files

├── PROJECT
├── pom.xml
└── src
    └── main
        ├── java
        │   └── com
        │       └── xyz
        │           └── JavaOpOperator.java
        └── resources
            └── application.properties