[EPIC] Model Generation using OpenAPI

[manusa]

Description

The current approach to model generation is slow and very hard and time consuming to maintain.

In addition, the current models lack Javadoc, which even if we have a fluent builder API, it's still a disadvantage from a UX perspective.

This contrasts very much with alternative approaches such as the one taken on YAKC where the complete generation for the Kubernetes models, OpenShift models, and a few extensions takes less than a minute.

Let's borrow some of the knowledge from the YAKC project and refactor our generation strategy.

Tasks

• OpenAPI: Investigate kubernetes model code generation #6080

• OpenAPI: Go to OpenAPI/Swagger generator #6131

• feat(openapi): openapi generation from CRD definitions #6393

• OpenAPI: openapi-model-generator-maven-plugin to generate Java types from OpenAPI schemas #6135

• Usage of KubernetesResource in models creates massive builder classes #6332

• Adapt CRD Generator v2 to new approach to KubernetesResource #6335

• Remove unneeded dependency declarations in kubernetes-model-generator #6327

• ✅ Replace generation for Kubernetes module types

  • Replace Go model generation for kubernetes-model-core #6162
  • Replace Go model generation for kubernetes-model-rbac #6165
  • Replace Go model generation for kubernetes-model-admissionregistration #6166
  • Replace Go model generation for kubernetes-model-apiextensions #6168
  • Replace Go model generation for kubernetes-model-apps #6169
  • Replace Go model generation for kubernetes-model-autoscaling #6170
  • Replace Go model generation for kubernetes-model-batch #6171
  • Replace Go model generation for kubernetes-model-certificates #6175
  • Replace Go model generation for kubernetes-model-coordination #6176
  • Replace Go model generation for kubernetes-model-discovery #6177
  • Replace Go model generation for kubernetes-model-events #6178
  • Replace Go model generation for kubernetes-model-extensions #6179
  • Replace Go model generation for kubernetes-model-flowcontrol #6180
  • Replace Go model generation for kubernetes-model-gatewayapi #6181
  • Replace Go model generation for kubernetes-model-networking #6182
  • Replace Go model generation for kubernetes-model-metrics #6183
  • Replace Go model generation for kubernetes-model-node #6184
  • Replace Go model generation for kubernetes-model-policy #6185
  • Replace Go model generation for kubernetes-model-scheduling #6186
  • Replace Go model generation for kubernetes-model-storageclass #6187
  • Replace Go model generation for kubernetes-model-resource #6188
  • Replace Go model generation for kubernetes-model-kustomize #6189

• ✅ Replace generation for OpenShift module types

  • Replace Go model generation for openshift-model-config #6258
  • Replace Go model generation for openshift-model #6259
  • Replace Go model generation for openshift-model-operator #6260
  • Replace Go model generation for openshift-model-operatorhub #6261
  • Replace Go model generation for openshift-model-console #6262
  • Replace Go model generation for openshift-model-clusterautoscaling #6263
  • Replace Go model generation for openshift-model-machine #6265
  • Replace Go model generation for openshift-model-machineconfig #6267
  • Replace Go model generation for openshift-model-miscellaneous #6268
  • Replace Go model generation for openshift-model-monitoring #6269
  • Replace Go model generation for openshift-model-tuned #6270
  • Replace Go model generation for openshift-model-whereabouts #6271
  • Replace Go model generation for openshift-model-storageversionmigrator #6272
  • Replace Go model generation for openshift-model-hive #6264
  • Replace Go model generation for openshift-model-installer #6266

• Replace generation for extension types

  • Replace Go model generation for knative #6419
  • Replace Go model generation for certmanager #6420
  • Replace Go model generation for chaosmesh #6421
  • Replace Go model generation for tekton #6422
  • Replace Go model generation for verticalpodautoscaler #6423
  • Replace Go model generation for volcano #6424
  • Replace Go model generation for volumesnapshot #6425
  • Replace Go model generation for istio #6426
  • Replace Go model generation for open-cluster-management #6427
  • Replace Go model generation for open-virtual-networking #6428

• Remove .json files (kube-schema.json, validation-schema.json, $$$extension.json)

• Analyze Reflection-free deserializer implementations

  • Kubernetes Objects/Model types backed by generic resource with accessors for (de)serialization and API/UX #6199

• OpenAPI: replace snake_cased variables #6406

• OpenAPI: Add missing buildable references #6451

• OpenAPI: Validation schemas #6145