This project is a demonstration of how you can generate POJOs for your Custom Resources if you already have go structs for your Custom Resource types. You can then easily use there generated POJOs in Fabric8 Kubernetes Client typed API for Custom Resources. We at Fabric8 Kubernetes Client team have been generating POJOs for Kubernetes resources from go structs. We also have extensions for Knative, Tekton and Service Catalog which generate model on the same principle. This project just uses the generators used by Fabric8 Kubernetes Client and tries to provide a generic way to generate your own Custom Resource POJOs by just providing simple configuration file.
You just need to do a basic mvn compile or mvn clean install to build this project.
You just need to provide a basic JSON file with details of where your go packages are
located, what package shall your package go to? You need to create input.json file
inside src/main/resources/generator/ directory. Let's see an example of structs
being provided inside official Kubernetes Sample Controller repository:
This is how your input.json should look like:
{
"name": "SampleController",
"packages": [
{
"name":"samplecontroller",
"goPackage": "k8s.io/sample-controller/pkg/apis/samplecontroller/v1alpha1",
"javaPackage": "io.kubernetes.samplecontroller.api.model",
"apiGroup":"samplecontroller.k8s.io",
"apiVersion": "v1alpha1",
"types": [
{"name":"Foo", "namespaced":true}
]
}
]
}You need to provide this minimal JSON file while running the jar-with-deps generated in this project:
java -jar -DinputFile=input.json kubernetes-model-code-generator-1.0.0-SNAPSHOT-jar-with-dependencies.jarOnce build is finished. You'll notice that it created a folder with model contents in the directory your executed jar:
fabric8-gostruct2pojogenerator-test : $ tree SampleController/ -L 1
SampleController/
├── generator
├── model
└── pom.xml
You can find your POJOs in model/target/generated-sources directory:
fabric8-gostruct2pojogenerator-test : $ tree SampleController/model/target/generated-sources/
SampleController/model/target/generated-sources/
├── annotations
│ └── io
│ ├── fabric8
│ │ └── kubernetes
│ │ └── api
│ │ └── model
│ │ ├── DoneableModelSchema.java
│ │ ├── ModelSchemaBuilder.java
│ │ ├── ModelSchemaFluentImpl.java
│ │ └── ModelSchemaFluent.java
│ └── kubernetes
│ └── samplecontroller
│ └── api
│ └── model
│ ├── DoneableFoo.java
│ ├── DoneableFooList.java
│ ├── DoneableFooSpec.java
│ ├── DoneableFooStatus.java
│ ├── FooBuilder.java
│ ├── FooFluentImpl.java
│ ├── FooFluent.java
│ ├── FooListBuilder.java
│ ├── FooListFluentImpl.java
│ ├── FooListFluent.java
│ ├── FooSpecBuilder.java
│ ├── FooSpecFluentImpl.java
│ ├── FooSpecFluent.java
│ ├── FooStatusBuilder.java
│ ├── FooStatusFluentImpl.java
│ └── FooStatusFluent.java
└── io
├── fabric8
│ └── kubernetes
│ └── api
│ └── model
│ └── ModelSchema.java
└── kubernetes
└── samplecontroller
└── api
└── model
├── Foo.java
├── FooList.java
├── FooSpec.java
└── FooStatus.java
19 directories, 25 files
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