This project is a component of the Operator Framework, an open source toolkit to manage Kubernetes native applications, called Operators, in an effective, automated, and scalable way. Read more in the introduction blog post.
Operators make it easy to manage complex stateful applications on top of Kubernetes. However writing an operator today can be difficult because of challenges such as using low level APIs, writing boilerplate, and a lack of modularity which leads to duplication.
Operator SDK is under Apache 2.0 license. See the LICENSE file for details.
To use kubebuilder-plugin for java operators we need to clone the operator-sdk repo.
- Add the kubebuilder plugin to
go.mod
github.com/operator-framework/java-operator-plugins 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/operator-framework/java-operator-plugins => /Users/sushah/go/src/github.com/sujil02/kubebuilder-plugin
- Add the java-operator-sdk import
javav1 "github.com/operator-framework/java-operator-plugins/pkg/quarkus/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,
),
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