feat(crd-generator): Deprecation warning for CRD versions

crd-generator/api/src/main/java/io/fabric8/crd/generator/CustomResourceInfo.java

@@ -42,6 +42,8 @@ public class CustomResourceInfo {
   private final String[] shortNames;
   private final boolean storage;
   private final boolean served;
+  private final boolean deprecated;
+  private final String deprecationWarning;
   private final Scope scope;
   private final TypeDef definition;
   private final String crClassName;
@@ -54,7 +56,7 @@ public class CustomResourceInfo {
   private final String[] labels;
 
   public CustomResourceInfo(String group, String version, String kind, String singular,
-      String plural, String[] shortNames, boolean storage, boolean served,
+      String plural, String[] shortNames, boolean storage, boolean served, boolean deprecated, String deprecationWarning,
       Scope scope, TypeDef definition, String crClassName,
       String specClassName, String statusClassName, String[] annotations, String[] labels) {
     this.group = group;
@@ -65,6 +67,8 @@ public CustomResourceInfo(String group, String version, String kind, String sing
     this.shortNames = shortNames;
     this.storage = storage;
     this.served = served;
+    this.deprecated = deprecated;
+    this.deprecationWarning = deprecationWarning;
     this.scope = scope;
     this.definition = definition;
     this.crClassName = crClassName;
@@ -84,6 +88,14 @@ public boolean served() {
     return served;
   }
 
+  public boolean deprecated() {
+    return deprecated;
+  }
+
+  public String deprecationWarning() {
+    return deprecationWarning;
+  }
+
   public String key() {
     return crdName();
   }
@@ -165,8 +177,9 @@ public static CustomResourceInfo fromClass(Class<? extends CustomResource<?, ?>>
       }
 
       return new CustomResourceInfo(instance.getGroup(), instance.getVersion(), instance.getKind(),
-          instance.getSingular(), instance.getPlural(), shortNames, instance.isStorage(), instance.isServed(), scope,
-          definition,
+          instance.getSingular(), instance.getPlural(), shortNames, instance.isStorage(), instance.isServed(),
+          instance.isDeprecated(), instance.getDeprecationWarning(),
+          scope, definition,
           customResource.getCanonicalName(), specAndStatus.getSpecClassName(),
           specAndStatus.getStatusClassName(), toStringArray(instance.getMetadata().getAnnotations()),
           toStringArray(instance.getMetadata().getLabels()));

crd-generator/api/src/main/java/io/fabric8/crd/generator/v1/CustomResourceHandler.java

@@ -29,6 +29,7 @@
 import io.fabric8.crd.generator.v1.decorator.AddStatusSubresourceDecorator;
 import io.fabric8.crd.generator.v1.decorator.AddSubresourcesDecorator;
 import io.fabric8.crd.generator.v1.decorator.EnsureSingleStorageVersionDecorator;
+import io.fabric8.crd.generator.v1.decorator.SetDeprecatedVersionDecorator;
 import io.fabric8.crd.generator.v1.decorator.SetServedVersionDecorator;
 import io.fabric8.crd.generator.v1.decorator.SetStorageVersionDecorator;
 import io.fabric8.crd.generator.v1.decorator.SortPrinterColumnsDecorator;
@@ -89,6 +90,7 @@ protected void addDecorators(CustomResourceInfo config, TypeDef def, Optional<St
 
     resources.decorate(new SetServedVersionDecorator(name, version, config.served()));
     resources.decorate(new SetStorageVersionDecorator(name, version, config.storage()));
+    resources.decorate(new SetDeprecatedVersionDecorator(name, version, config.deprecated(), config.deprecationWarning()));
     resources.decorate(new EnsureSingleStorageVersionDecorator(name));
     resources.decorate(new SortPrinterColumnsDecorator(name, version));
   }

crd-generator/api/src/main/java/io/fabric8/crd/generator/v1/decorator/SetDeprecatedVersionDecorator.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.generator.v1.decorator;
+
+import io.fabric8.kubernetes.api.model.apiextensions.v1.CustomResourceDefinitionVersionFluent;
+
+public class SetDeprecatedVersionDecorator
+    extends CustomResourceDefinitionVersionDecorator<CustomResourceDefinitionVersionFluent<?>> {
+
+  private final boolean deprecated;
+  private final String deprecationWarning;
+
+  public SetDeprecatedVersionDecorator(String name, String version, boolean deprecated, String deprecationWarning) {
+    super(name, version);
+    this.deprecated = deprecated;
+    this.deprecationWarning = deprecationWarning;
+  }
+
+  @Override
+  public void andThenVisit(CustomResourceDefinitionVersionFluent<?> version) {
+    if (deprecated) {
+      version.withDeprecated(true);
+      version.withDeprecationWarning(deprecationWarning);
+    }
+  }
+
+  @Override
+  public String toString() {
+    return getClass().getName() + " [name:" + getName() + ", version:" + getVersion()
+        + ", deprecated:" + deprecated + ", deprecationWarning:" + deprecationWarning + "]";
+  }
+}

crd-generator/api/src/main/java/io/fabric8/crd/generator/v1beta1/CustomResourceHandler.java

@@ -30,6 +30,7 @@
 import io.fabric8.crd.generator.v1beta1.decorator.AddSubresourcesDecorator;
 import io.fabric8.crd.generator.v1beta1.decorator.EnsureSingleStorageVersionDecorator;
 import io.fabric8.crd.generator.v1beta1.decorator.PromoteSingleVersionAttributesDecorator;
+import io.fabric8.crd.generator.v1beta1.decorator.SetDeprecatedVersionDecorator;
 import io.fabric8.crd.generator.v1beta1.decorator.SetServedVersionDecorator;
 import io.fabric8.crd.generator.v1beta1.decorator.SetStorageVersionDecorator;
 import io.fabric8.crd.generator.v1beta1.decorator.SortPrinterColumnsDecorator;
@@ -90,6 +91,7 @@ protected void addDecorators(CustomResourceInfo config, TypeDef def,
 
     resources.decorate(new SetServedVersionDecorator(name, version, config.served()));
     resources.decorate(new SetStorageVersionDecorator(name, version, config.storage()));
+    resources.decorate(new SetDeprecatedVersionDecorator(name, version, config.deprecated(), config.deprecationWarning()));
     resources.decorate(new EnsureSingleStorageVersionDecorator(name));
     resources.decorate(new PromoteSingleVersionAttributesDecorator(name));
     resources.decorate(new SortPrinterColumnsDecorator(name, version));

crd-generator/api/src/main/java/io/fabric8/crd/generator/v1beta1/decorator/SetDeprecatedVersionDecorator.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.generator.v1beta1.decorator;
+
+import io.fabric8.kubernetes.api.model.apiextensions.v1beta1.CustomResourceDefinitionVersionFluent;
+
+public class SetDeprecatedVersionDecorator
+    extends CustomResourceDefinitionVersionDecorator<CustomResourceDefinitionVersionFluent<?>> {
+
+  private final boolean deprecated;
+  private final String deprecationWarning;
+
+  public SetDeprecatedVersionDecorator(String name, String version, boolean deprecated, String deprecationWarning) {
+    super(name, version);
+    this.deprecated = deprecated;
+    this.deprecationWarning = deprecationWarning;
+  }
+
+  @Override
+  public void andThenVisit(CustomResourceDefinitionVersionFluent<?> version) {
+    if (deprecated) {
+      version.withDeprecated(true);
+      version.withDeprecationWarning(deprecationWarning);
+    }
+  }
+
+  @Override
+  public String toString() {
+    return getClass().getName() + " [name:" + getName() + ", version:" + getVersion()
+        + ", deprecated:" + deprecated + ", deprecationWarning:" + deprecationWarning + "]";
+  }
+}

crd-generator/api/src/test/java/io/fabric8/crd/example/deprecated/v1/DeprecationExample.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.example.deprecated.v1;
+
+import io.fabric8.kubernetes.client.CustomResource;
+import io.fabric8.kubernetes.model.annotation.Group;
+import io.fabric8.kubernetes.model.annotation.Version;
+
+@Group("sample.fabric8.io")
+@Version(value = "v1", storage = false, deprecated = true)
+public class DeprecationExample extends CustomResource<DeprecationExampleSpec, Void> {
+}

crd-generator/api/src/test/java/io/fabric8/crd/example/deprecated/v1/DeprecationExampleSpec.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.example.deprecated.v1;
+
+public class DeprecationExampleSpec {
+  private String v1;
+
+  public String getV1() {
+    return v1;
+  }
+}

crd-generator/api/src/test/java/io/fabric8/crd/example/deprecated/v1beta1/DeprecationExample.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.example.deprecated.v1beta1;
+
+import io.fabric8.kubernetes.client.CustomResource;
+import io.fabric8.kubernetes.model.annotation.Group;
+import io.fabric8.kubernetes.model.annotation.Version;
+
+@Group("sample.fabric8.io")
+@Version(value = "v1beta1", storage = false, deprecated = true, deprecationWarning = "sample.fabric8.io/v1beta1 DeprecationExample is deprecated; Migrate to sample.fabric8.io/v2")
+public class DeprecationExample extends CustomResource<DeprecationExampleSpec, Void> {
+}

crd-generator/api/src/test/java/io/fabric8/crd/example/deprecated/v1beta1/DeprecationExampleSpec.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.example.deprecated.v1beta1;
+
+public class DeprecationExampleSpec {
+  private String v1beta1;
+
+  public String getV1() {
+    return v1beta1;
+  }
+}

crd-generator/api/src/test/java/io/fabric8/crd/example/deprecated/v2/DeprecationExample.java

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.example.deprecated.v2;
+
+import io.fabric8.kubernetes.client.CustomResource;
+import io.fabric8.kubernetes.model.annotation.Group;
+import io.fabric8.kubernetes.model.annotation.Version;
+
+@Group("sample.fabric8.io")
+@Version("v2")
+public class DeprecationExample extends CustomResource<DeprecationExampleSpec, Void> {
+}

crd-generator/api/src/test/java/io/fabric8/crd/example/deprecated/v2/DeprecationExampleSpec.java

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2015 Red Hat, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package io.fabric8.crd.example.deprecated.v2;
+
+public class DeprecationExampleSpec {
+  private String v2;
+
+  public String getV2() {
+    return v2;
+  }
+}

crd-generator/api/src/test/java/io/fabric8/crd/generator/CRDGeneratorTest.java

@@ -21,6 +21,7 @@
 import io.fabric8.crd.example.complex.Complex;
 import io.fabric8.crd.example.cyclic.Cyclic;
 import io.fabric8.crd.example.cyclic.CyclicList;
+import io.fabric8.crd.example.deprecated.v2.DeprecationExample;
 import io.fabric8.crd.example.inherited.BaseSpec;
 import io.fabric8.crd.example.inherited.BaseStatus;
 import io.fabric8.crd.example.inherited.Child;
@@ -220,6 +221,53 @@ void shouldProperlyGenerateMultipleVersionsOfCRDs() {
         .forEach(c -> assertTrue(dependentClassNames.contains(c), "should contain " + c));
   }
 
+  @Test
+  void checkDeprecated() {
+    CRDGenerator generator = newCRDGenerator();
+    final String specVersion = "v1";
+    final CRDGenerationInfo info = generator
+        .customResourceClasses(
+            io.fabric8.crd.example.deprecated.v1beta1.DeprecationExample.class,
+            io.fabric8.crd.example.deprecated.v1.DeprecationExample.class,
+            DeprecationExample.class)
+        .forCRDVersions(specVersion)
+        .withOutput(output)
+        .detailedGenerate();
+
+    assertEquals(1, info.numberOfGeneratedCRDs());
+    final Map<String, Map<String, CRDInfo>> details = info.getCRDDetailsPerNameAndVersion();
+    assertEquals(1, details.size());
+    // check multiple versions for same CR
+    final String crdName = CustomResource.getCRDName(DeprecationExample.class);
+    assertTrue(details.containsKey(crdName));
+    final Map<String, CRDInfo> infos = info.getCRDInfos(crdName);
+    assertEquals(1, infos.size());
+    assertTrue(infos.containsKey(specVersion));
+
+    final String outputName = CRDGenerator.getOutputName(crdName, specVersion);
+    CustomResourceDefinition definition = output.definition(outputName);
+    assertNotNull(definition);
+    assertEquals("apiextensions.k8s.io/" + specVersion, definition.getApiVersion());
+
+    CustomResourceDefinitionSpec spec = definition.getSpec();
+    final List<CustomResourceDefinitionVersion> versions = spec.getVersions();
+    assertEquals(3, versions.size());
+    assertEquals(1, versions.stream().filter(v -> v.getName().equals("v1beta1")).count());
+    assertEquals(1, versions.stream().filter(v -> v.getName().equals("v1")).count());
+    assertEquals(1, versions.stream().filter(v -> v.getName().equals("v2")).count());
+
+    CustomResourceDefinitionVersion v1Beta1 = versions.stream().filter(v -> v.getName().equals("v1beta1")).findFirst().get();
+    CustomResourceDefinitionVersion v1 = versions.stream().filter(v -> v.getName().equals("v1")).findFirst().get();
+    CustomResourceDefinitionVersion v2 = versions.stream().filter(v -> v.getName().equals("v2")).findFirst().get();
+    assertTrue(v1Beta1.getDeprecated());
+    assertEquals("sample.fabric8.io/v1beta1 DeprecationExample is deprecated; Migrate to sample.fabric8.io/v2",
+        v1Beta1.getDeprecationWarning());
+    assertTrue(v1.getDeprecated());
+    assertNull(v1.getDeprecationWarning());
+    assertNull(v2.getDeprecated());
+    assertNull(v2.getDeprecationWarning());
+  }
+
   @Test
   void notDefiningOutputShouldNotGenerateAnything() {
     CRDGenerator generator = newCRDGenerator();