Kubernetes as a Composite config source (#1873)

* initial commit, crearting factory Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * testing default Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * remove checkstyle Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * for try Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * for try Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * trying existing bean Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * reverting pom.xml Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * ObjectProvider for missing bean Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * Update default order value in KubernetesConfigServerProperties Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * code style fixes Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * code style fixes Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * code style fixes Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * code style Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * test cases Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * Composite Integration Tests where kubernetes is one of the type in the composite setup KubernetesEnvironmentRepository as condition for KubernetesEnvironmentRepositoryFactory bean creation Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * Composite Integration Tests where kubernetes is one of the type in the composite setup KubernetesEnvironmentRepository as condition for KubernetesEnvironmentRepositoryFactory bean creation Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * Add KubernetesConfigServerProperties support to KubernetesEnvironmentRepository and related tests Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * mark old implementation as deprecated and revert test cases Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * test case for new constructor Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * linting Signed-off-by: Arjav <arjavdongaonkar@gmail.com> * remove ObjectProvider Signed-off-by: Arjav <arjavdongaonkar@gmail.com> --------- Signed-off-by: Arjav <arjavdongaonkar@gmail.com>
2025-02-23 19:26:18 +05:30
parent f6c12287b2
commit 2b9709b4a0
12 changed files with 710 additions and 6 deletions
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesConfigServerAutoConfiguration.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesConfigServerAutoConfiguration.java
@@ -23,12 +23,13 @@ import io.kubernetes.client.openapi.apis.CoreV1Api;

 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnCloudPlatform;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.cloud.CloudPlatform;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.config.server.config.ConfigServerAutoConfiguration;
-import org.springframework.cloud.config.server.environment.EnvironmentRepository;
 import org.springframework.cloud.kubernetes.client.KubernetesClientAutoConfiguration;
 import org.springframework.cloud.kubernetes.client.config.KubernetesClientConfigContext;
 import org.springframework.cloud.kubernetes.client.config.KubernetesClientConfigMapPropertySource;
@@ -59,11 +60,21 @@ public class KubernetesConfigServerAutoConfiguration {

 	@Bean
 	@Profile("kubernetes")
-	public EnvironmentRepository kubernetesEnvironmentRepository(CoreV1Api coreV1Api,
+	@ConditionalOnMissingBean
+	public KubernetesEnvironmentRepository kubernetesEnvironmentRepository(CoreV1Api coreV1Api,
 			List<KubernetesPropertySourceSupplier> kubernetesPropertySourceSuppliers,
-			KubernetesNamespaceProvider kubernetesNamespaceProvider) {
+			KubernetesNamespaceProvider kubernetesNamespaceProvider,
+			KubernetesConfigServerProperties kubernetesConfigServerProperties) {
 		return new KubernetesEnvironmentRepository(coreV1Api, kubernetesPropertySourceSuppliers,
-				kubernetesNamespaceProvider.getNamespace());
+				kubernetesNamespaceProvider.getNamespace(), kubernetesConfigServerProperties);
+	}
+
+	@Bean
+	@ConditionalOnBean(KubernetesEnvironmentRepository.class)
+	@ConditionalOnMissingBean
+	public KubernetesEnvironmentRepositoryFactory kubernetesEnvironmentRepositoryFactory(
+			KubernetesEnvironmentRepository kubernetesEnvironmentRepository) {
+		return new KubernetesEnvironmentRepositoryFactory(kubernetesEnvironmentRepository);
 	}

 	@Bean
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesConfigServerProperties.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesConfigServerProperties.java
@@ -17,13 +17,16 @@
 package org.springframework.cloud.kubernetes.configserver;

 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.cloud.config.server.support.EnvironmentRepositoryProperties;

 /**
 * @author Ryan Baxter
 */

@ConfigurationProperties("spring.cloud.kubernetes.configserver")
-public class KubernetesConfigServerProperties {
+public class KubernetesConfigServerProperties implements EnvironmentRepositoryProperties {
+
+	private int order = DEFAULT_ORDER;

 	private String configMapNamespaces = "";

@@ -45,4 +48,12 @@ public class KubernetesConfigServerProperties {
 		this.secretsNamespaces = secretsNamespaces;
 	}

+	public int getOrder() {
+		return this.order;
+	}
+
+	public void setOrder(int order) {
+		this.order = order;
+	}
+
 }
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepository.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepository.java
@@ -28,6 +28,7 @@ import org.apache.commons.logging.LogFactory;
 import org.springframework.cloud.config.environment.Environment;
 import org.springframework.cloud.config.environment.PropertySource;
 import org.springframework.cloud.config.server.environment.EnvironmentRepository;
+import org.springframework.core.Ordered;
 import org.springframework.core.env.MapPropertySource;
 import org.springframework.core.env.MutablePropertySources;
 import org.springframework.core.env.StandardEnvironment;
@@ -36,7 +37,7 @@ import org.springframework.util.StringUtils;
 /**
 * @author Ryan Baxter
 */
-public class KubernetesEnvironmentRepository implements EnvironmentRepository {
+public class KubernetesEnvironmentRepository implements EnvironmentRepository, Ordered {

 	private static final Log LOG = LogFactory.getLog(KubernetesEnvironmentRepository.class);

@@ -46,6 +47,9 @@ public class KubernetesEnvironmentRepository implements EnvironmentRepository {

 	private final String namespace;

+	private int order = KubernetesConfigServerProperties.DEFAULT_ORDER;
+
+	@Deprecated
 	public KubernetesEnvironmentRepository(CoreV1Api coreApi,
 			List<KubernetesPropertySourceSupplier> kubernetesPropertySourceSuppliers, String namespace) {
 		this.coreApi = coreApi;
@@ -53,6 +57,15 @@ public class KubernetesEnvironmentRepository implements EnvironmentRepository {
 		this.namespace = namespace;
 	}

+	public KubernetesEnvironmentRepository(CoreV1Api coreApi,
+			List<KubernetesPropertySourceSupplier> kubernetesPropertySourceSuppliers, String namespace,
+			KubernetesConfigServerProperties properties) {
+		this.coreApi = coreApi;
+		this.kubernetesPropertySourceSuppliers = kubernetesPropertySourceSuppliers;
+		this.namespace = namespace;
+		this.order = properties.getOrder();
+	}
+
 	@Override
 	public Environment findOne(String application, String profile, String label) {
 		return findOne(application, profile, label, true);
@@ -118,4 +131,13 @@ public class KubernetesEnvironmentRepository implements EnvironmentRepository {
 		});
 	}

+	@Override
+	public int getOrder() {
+		return this.order;
+	}
+
+	public void setOrder(int order) {
+		this.order = order;
+	}
+
 }
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepositoryFactory.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/main/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepositoryFactory.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2013-2021 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.cloud.kubernetes.configserver;
+
+import org.springframework.cloud.config.server.environment.EnvironmentRepositoryFactory;
+
+/**
+ * Factory class for creating instances of {@link KubernetesEnvironmentRepository}.
+ *
+ * @author Arjav Dongaonkar
+ */
+public class KubernetesEnvironmentRepositoryFactory
+		implements EnvironmentRepositoryFactory<KubernetesEnvironmentRepository, KubernetesConfigServerProperties> {
+
+	private final KubernetesEnvironmentRepository kubernetesEnvironmentRepository;
+
+	public KubernetesEnvironmentRepositoryFactory(KubernetesEnvironmentRepository kubernetesEnvironmentRepository) {
+		this.kubernetesEnvironmentRepository = kubernetesEnvironmentRepository;
+	}
+
+	@Override
+	public KubernetesEnvironmentRepository build(KubernetesConfigServerProperties environmentProperties) {
+		return kubernetesEnvironmentRepository;
+	}
+
+}
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/CompositeProfileWithGitAndKubernetesConfigSourcesTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/CompositeProfileWithGitAndKubernetesConfigSourcesTests.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2013-2022 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.cloud.kubernetes.configserver;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.cloud.config.server.environment.JGitEnvironmentRepository;
+import org.springframework.context.ConfigurableApplicationContext;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Arjav Dongaonkar
+ */
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+		classes = { KubernetesConfigServerApplication.class },
+		properties = { "spring.main.cloud-platform=KUBERNETES", "spring.profiles.include=kubernetes",
+				"spring.cloud.kubernetes.client.namespace=default", "spring.profiles.active=composite",
+				"spring.cloud.config.server.composite[0].type=git",
+				"spring.cloud.config.server.composite[0].uri=https://github.com/spring-cloud-samples/config-repo",
+				"spring.cloud.config.server.composite[1].type=kubernetes",
+				"spring.cloud.config.server.composite[1].config-map-namespace=default",
+				"spring.cloud.config.server.composite[1].secrets-namespace=default" })
+class CompositeProfileWithGitAndKubernetesConfigSourcesTests {
+
+	@Autowired
+	private ConfigurableApplicationContext context;
+
+	@Test
+	void runTest() {
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepository.class)).hasSize(2);
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepositoryFactory.class)).hasSize(1);
+		assertThat(context.getBeanNamesForType(KubernetesPropertySourceSupplier.class)).isNotEmpty();
+		assertThat(context.getBeanNamesForType(JGitEnvironmentRepository.class)).hasSize(1);
+	}
+
+}
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/CompositeProfileWithMultipleKubernetesConfigSourcesTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/CompositeProfileWithMultipleKubernetesConfigSourcesTests.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2013-2022 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.cloud.kubernetes.configserver;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.ConfigurableApplicationContext;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Arjav Dongaonkar
+ */
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+		classes = { KubernetesConfigServerApplication.class },
+		properties = { "spring.main.cloud-platform=KUBERNETES", "spring.profiles.include=kubernetes",
+				"spring.cloud.kubernetes.client.namespace=default", "spring.profiles.active=composite",
+				"spring.cloud.config.server.composite[0].type=kubernetes",
+				"spring.cloud.config.server.composite[0].config-map-namespace=default",
+				"spring.cloud.config.server.composite[0].secrets-namespace=default",
+				"spring.cloud.config.server.composite[1].type=kubernetes",
+				"spring.cloud.config.server.composite[1].config-map-namespace=another-namespace",
+				"spring.cloud.config.server.composite[1].secrets-namespace=another-namespace" })
+class CompositeProfileWithMultipleKubernetesConfigSourcesTests {
+
+	@Autowired
+	private ConfigurableApplicationContext context;
+
+	@Test
+	void runTest() {
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepository.class)).hasSize(3);
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepositoryFactory.class)).hasSize(1);
+		assertThat(context.getBeanNamesForType(KubernetesPropertySourceSupplier.class)).isNotEmpty();
+	}
+
+}
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/CompositeProfileWithOnlyKubernetesConfigSourceTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/CompositeProfileWithOnlyKubernetesConfigSourceTests.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2013-2022 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.cloud.kubernetes.configserver;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.context.ConfigurableApplicationContext;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Arjav Dongaonkar
+ */
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+		classes = { KubernetesConfigServerApplication.class },
+		properties = { "spring.main.cloud-platform=KUBERNETES", "spring.profiles.include=kubernetes",
+				"spring.cloud.kubernetes.client.namespace=default", "spring.profiles.active=composite",
+				"spring.cloud.config.server.composite[0].type=kubernetes",
+				"spring.cloud.config.server.composite[0].config-map-namespace=default",
+				"spring.cloud.config.server.composite[0].secrets-namespace=default" })
+class CompositeProfileWithOnlyKubernetesConfigSourceTests {
+
+	@Autowired
+	private ConfigurableApplicationContext context;
+
+	@Test
+	void runTest() {
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepository.class)).hasSize(2);
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepositoryFactory.class)).hasSize(1);
+		assertThat(context.getBeanNamesForType(KubernetesPropertySourceSupplier.class)).isNotEmpty();
+	}
+
+}
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/ConfigServerAutoConfigurationKubernetesDisabledTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/ConfigServerAutoConfigurationKubernetesDisabledTests.java
@@ -38,6 +38,7 @@ class ConfigServerAutoConfigurationKubernetesDisabledTests {
 	@Test
 	void runTest() {
 		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepository.class)).hasSize(0);
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepositoryFactory.class)).hasSize(0);
 	}

 }
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/ConfigServerAutoConfigurationKubernetesEnabledProfileIncludedConfigApiDisabledTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/ConfigServerAutoConfigurationKubernetesEnabledProfileIncludedConfigApiDisabledTests.java
@@ -40,6 +40,7 @@ class ConfigServerAutoConfigurationKubernetesEnabledProfileIncludedConfigApiDisa
 	void runTest() {
 		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepository.class)).hasSize(1);
 		assertThat(context.getBeanNamesForType(KubernetesPropertySourceSupplier.class)).hasSize(0);
+		assertThat(context.getBeanNamesForType(KubernetesEnvironmentRepositoryFactory.class)).hasSize(1);
 	}

 }
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepositoryFactoryTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepositoryFactoryTests.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2013-2022 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.cloud.kubernetes.configserver;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.cloud.config.server.environment.EnvironmentRepository;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.test.context.junit.jupiter.SpringJUnitConfig;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+@SpringJUnitConfig
+@SpringBootTest
+class KubernetesEnvironmentRepositoryFactoryTests {
+
+	@MockBean
+	private KubernetesEnvironmentRepository mockRepository;
+
+	@Test
+	void testBuild() {
+		KubernetesEnvironmentRepositoryFactory factory = new KubernetesEnvironmentRepositoryFactory(mockRepository);
+		KubernetesConfigServerProperties properties = new KubernetesConfigServerProperties();
+
+		EnvironmentRepository repository = factory.build(properties);
+
+		assertThat(repository).isNotNull();
+		assertThat(repository).isInstanceOf(KubernetesEnvironmentRepository.class);
+		assertThat(repository).isSameAs(mockRepository);
+	}
+
+	@Configuration
+	static class TestConfig {
+
+		@Bean
+		public KubernetesEnvironmentRepository kubernetesEnvironmentRepository() {
+			return mock(KubernetesEnvironmentRepository.class);
+		}
+
+		@Bean
+		public KubernetesEnvironmentRepositoryFactory kubernetesEnvironmentRepositoryFactory(
+				KubernetesEnvironmentRepository kubernetesEnvironmentRepository) {
+			return new KubernetesEnvironmentRepositoryFactory(kubernetesEnvironmentRepository);
+		}
+
+	}
+
+}
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepositoryTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/KubernetesEnvironmentRepositoryTests.java
@@ -190,6 +190,48 @@ class KubernetesEnvironmentRepositoryTests {
 		});
 	}

+	@Test
+	public void testApplicationCaseWithNewConstructor() throws ApiException {
+		CoreV1Api coreApi = mock(CoreV1Api.class);
+		KubernetesConfigServerProperties properties = mock(KubernetesConfigServerProperties.class);
+		when(properties.getOrder()).thenReturn(0);
+
+		when(coreApi.listNamespacedConfigMap(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null), eq(null),
+				eq(null), eq(null), eq(null), eq(null), eq(null)))
+			.thenReturn(CONFIGMAP_DEFAULT_LIST);
+		when(coreApi.listNamespacedSecret(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null), eq(null),
+				eq(null), eq(null), eq(null), eq(null), eq(null)))
+			.thenReturn(SECRET_LIST);
+		when(coreApi.listNamespacedConfigMap(eq("dev"), eq(null), eq(null), eq(null), eq(null), eq(null), eq(null),
+				eq(null), eq(null), eq(null), eq(null), eq(null)))
+			.thenReturn(CONFIGMAP_DEV_LIST);
+
+		KubernetesEnvironmentRepository environmentRepository = new KubernetesEnvironmentRepository(coreApi,
+				KUBERNETES_PROPERTY_SOURCE_SUPPLIER, "default", properties);
+
+		Environment environment = environmentRepository.findOne("application", "", "");
+
+		assertThat(environment.getPropertySources().size()).isEqualTo(2);
+		environment.getPropertySources().forEach(propertySource -> {
+			assertThat(propertySource.getName().equals("configmap.application.default")
+					|| propertySource.getName().equals("secret.application.default"))
+				.isTrue();
+			if (propertySource.getName().equals("configmap.application.default")) {
+				assertThat(propertySource.getSource().size()).isEqualTo(3);
+				assertThat(propertySource.getSource().get("dummy.property.int2")).isEqualTo(1);
+				assertThat(propertySource.getSource().get("dummy.property.bool2")).isEqualTo(true);
+				assertThat(propertySource.getSource().get("dummy.property.string2")).isEqualTo("a");
+			}
+			if (propertySource.getName().equals("secrets.application.default")) {
+				assertThat(propertySource.getSource().size()).isEqualTo(2);
+				assertThat(propertySource.getSource().get("username")).isEqualTo("user");
+				assertThat(propertySource.getSource().get("password")).isEqualTo("p455w0rd");
+			}
+		});
+
+		assertThat(environmentRepository.getOrder()).isEqualTo(0);
+	}
+
 	@Test
 	public void testStoresCase() throws ApiException {
 		CoreV1Api coreApi = mock(CoreV1Api.class);
--- a/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/it/CompositeKubernetesIntegrationTests.java
+++ b/spring-cloud-kubernetes-controllers/spring-cloud-kubernetes-configserver/src/test/java/org/springframework/cloud/kubernetes/configserver/it/CompositeKubernetesIntegrationTests.java
@@ -0,0 +1,356 @@
+/*
+ * Copyright 2013-2022 the original author or authors.
+ *
+ * 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
+ *
+ *      https://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 org.springframework.cloud.kubernetes.configserver.it;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
+import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.apis.CoreV1Api;
+import io.kubernetes.client.openapi.models.V1ConfigMap;
+import io.kubernetes.client.openapi.models.V1ConfigMapBuilder;
+import io.kubernetes.client.openapi.models.V1ConfigMapList;
+import io.kubernetes.client.openapi.models.V1ObjectMetaBuilder;
+import io.kubernetes.client.openapi.models.V1Secret;
+import io.kubernetes.client.openapi.models.V1SecretBuilder;
+import io.kubernetes.client.openapi.models.V1SecretList;
+import io.kubernetes.client.openapi.models.V1SecretListBuilder;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.boot.test.mock.mockito.SpyBean;
+import org.springframework.boot.test.web.server.LocalServerPort;
+import org.springframework.cloud.config.environment.Environment;
+import org.springframework.cloud.config.environment.PropertySource;
+import org.springframework.cloud.config.server.environment.NativeEnvironmentRepository;
+import org.springframework.cloud.kubernetes.client.config.KubernetesClientConfigContext;
+import org.springframework.cloud.kubernetes.client.config.KubernetesClientConfigMapPropertySource;
+import org.springframework.cloud.kubernetes.client.config.KubernetesClientConfigMapsCache;
+import org.springframework.cloud.kubernetes.commons.config.Constants;
+import org.springframework.cloud.kubernetes.commons.config.NamedConfigMapNormalizedSource;
+import org.springframework.cloud.kubernetes.commons.config.NormalizedSource;
+import org.springframework.cloud.kubernetes.configserver.KubernetesConfigServerApplication;
+import org.springframework.cloud.kubernetes.configserver.KubernetesPropertySourceSupplier;
+import org.springframework.core.env.MapPropertySource;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.test.context.ActiveProfiles;
+import org.springframework.web.client.RestTemplate;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.when;
+
+/**
+ * @author Arjav Dongaonkar
+ */
+public class CompositeKubernetesIntegrationTests {
+
+	private static final List<KubernetesPropertySourceSupplier> KUBERNETES_PROPERTY_SOURCE_SUPPLIER = new ArrayList<>();
+
+	private static V1ConfigMap buildConfigMap(String name, String namespace) {
+		return new V1ConfigMapBuilder()
+			.withMetadata(
+					new V1ObjectMetaBuilder().withName(name).withNamespace(namespace).withResourceVersion("1").build())
+			.addToData(Constants.APPLICATION_YAML, "dummy:\n  property:\n    string: \"" + name + "\"\n")
+			.build();
+	}
+
+	private static V1Secret buildSecret(String name, String namespace) {
+		return new V1SecretBuilder()
+			.withMetadata(
+					new V1ObjectMetaBuilder().withName(name).withResourceVersion("0").withNamespace(namespace).build())
+			.addToData("password", "p455w0rd".getBytes())
+			.addToData("username", "user".getBytes())
+			.build();
+	}
+
+	private static final V1ConfigMapList CONFIGMAP_DEFAULT_LIST = new V1ConfigMapList()
+		.addItemsItem(buildConfigMap("gateway", "default"));
+
+	private static final V1SecretList SECRET_DEFAULT_LIST = new V1SecretListBuilder()
+		.addToItems(buildSecret("gateway", "default"))
+		.build();
+
+	@BeforeAll
+	public static void before() {
+		KUBERNETES_PROPERTY_SOURCE_SUPPLIER.add((coreApi, applicationName, namespace, springEnv) -> {
+			List<MapPropertySource> propertySources = new ArrayList<>();
+
+			NormalizedSource defaultSource = new NamedConfigMapNormalizedSource(applicationName, "default", false,
+					true);
+			KubernetesClientConfigContext defaultContext = new KubernetesClientConfigContext(coreApi, defaultSource,
+					"default", springEnv);
+			propertySources.add(new KubernetesClientConfigMapPropertySource(defaultContext));
+			return propertySources;
+		});
+	}
+
+	@AfterEach
+	public void after() {
+		new KubernetesClientConfigMapsCache().discardAll();
+	}
+
+	@Nested
+	@SpringBootTest(classes = { KubernetesConfigServerApplication.class },
+			properties = { "spring.main.cloud-platform=KUBERNETES", "spring.cloud.kubernetes.client.namespace=default",
+					"spring.config.name=compositeconfigserver",
+					"spring.cloud.config.server.composite[0].type=kubernetes",
+					"spring.cloud.kubernetes.secrets.enableApi=true" },
+			webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+	@ActiveProfiles({ "test", "composite", "kubernetes" })
+	class KubernetesCompositeConfigServerTest {
+
+		@LocalServerPort
+		private int port;
+
+		@MockBean
+		private CoreV1Api coreV1Api;
+
+		@Test
+		public void contextLoads() throws ApiException {
+			when(coreV1Api.listNamespacedConfigMap(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(CONFIGMAP_DEFAULT_LIST);
+			when(coreV1Api.listNamespacedSecret(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(SECRET_DEFAULT_LIST);
+
+			ResponseEntity<Environment> response = new RestTemplate().exchange(
+					"http://localhost:" + this.port + "/gateway/default", HttpMethod.GET, null, Environment.class);
+
+			Environment environment = response.getBody();
+			assertThat(environment).isNotNull();
+			assertThat(environment.getPropertySources()).hasSize(4);
+			assertThat(environment.getPropertySources().get(0).getName())
+				.isEqualTo("configmap.gateway.default.default");
+			assertThat(environment.getPropertySources().get(1).getName()).contains("secret.gateway.default.default");
+		}
+
+	}
+
+	@Nested
+	@SpringBootTest(classes = { KubernetesConfigServerApplication.class },
+			properties = { "spring.main.cloud-platform=KUBERNETES", "spring.cloud.kubernetes.client.namespace=default",
+					"spring.cloud.config.server.composite[0].type=kubernetes",
+					"spring.cloud.config.server.composite[1].type=native",
+					"spring.cloud.config.server.composite[1].location=file:./native-config",
+					"spring.cloud.kubernetes.secrets.enableApi=true" },
+			webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+	@ActiveProfiles({ "test", "composite", "kubernetes", "native" })
+	class KubernetesSecretsEnabledCompositeConfigServerTest {
+
+		@LocalServerPort
+		private int port;
+
+		@MockBean
+		private CoreV1Api coreV1Api;
+
+		@SpyBean
+		private NativeEnvironmentRepository nativeEnvironmentRepository;
+
+		@Test
+		public void contextLoads() throws Exception {
+			when(coreV1Api.listNamespacedConfigMap(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(CONFIGMAP_DEFAULT_LIST);
+			when(coreV1Api.listNamespacedSecret(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(SECRET_DEFAULT_LIST);
+
+			Environment mockNativeEnvironment = new Environment("gateway", "default");
+			mockNativeEnvironment.add(new PropertySource("nativeProperties", Map.of("key1", "value1")));
+
+			when(nativeEnvironmentRepository.findOne(anyString(), anyString(), eq(null), anyBoolean()))
+				.thenReturn(mockNativeEnvironment);
+
+			ResponseEntity<Environment> response = new RestTemplate().exchange(
+					"http://localhost:" + this.port + "/gateway/default", HttpMethod.GET, null, Environment.class);
+
+			Environment environment = response.getBody();
+			assertThat(environment).isNotNull();
+			assertThat(environment.getPropertySources()).hasSizeGreaterThanOrEqualTo(5);
+
+			assertThat(environment.getPropertySources().get(0).getName())
+				.isEqualTo("configmap.gateway.default.default");
+			assertThat(environment.getPropertySources().get(1).getName()).contains("secret.gateway.default.default");
+
+			assertThat(environment.getPropertySources()).anyMatch(ps -> ps.getName().contains("native"));
+		}
+
+	}
+
+	@Nested
+	@SpringBootTest(classes = { KubernetesConfigServerApplication.class },
+			properties = { "spring.main.cloud-platform=KUBERNETES", "spring.cloud.kubernetes.client.namespace=default",
+					"spring.cloud.config.server.composite[0].type=kubernetes",
+					"spring.cloud.config.server.composite[1].type=native",
+					"spring.cloud.config.server.composite[1].location=file:./native-config",
+					"spring.cloud.kubernetes.config.enableApi=false",
+					"spring.cloud.kubernetes.secrets.enableApi=true" },
+			webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+	@ActiveProfiles({ "test", "composite", "kubernetes", "native" })
+	class KubernetesConfigMapDisabledCompositeConfigServerTest {
+
+		@LocalServerPort
+		private int port;
+
+		@MockBean
+		private CoreV1Api coreV1Api;
+
+		@SpyBean
+		private NativeEnvironmentRepository nativeEnvironmentRepository;
+
+		@Test
+		public void contextLoads() throws Exception {
+			when(coreV1Api.listNamespacedConfigMap(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(CONFIGMAP_DEFAULT_LIST);
+			when(coreV1Api.listNamespacedSecret(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(SECRET_DEFAULT_LIST);
+
+			Environment mockNativeEnvironment = new Environment("gateway", "default");
+			mockNativeEnvironment.add(new PropertySource("nativeProperties", Map.of("key1", "value1")));
+
+			when(nativeEnvironmentRepository.findOne(anyString(), anyString(), eq(null), anyBoolean()))
+				.thenReturn(mockNativeEnvironment);
+
+			ResponseEntity<Environment> response = new RestTemplate().exchange(
+					"http://localhost:" + this.port + "/gateway/default", HttpMethod.GET, null, Environment.class);
+
+			Environment environment = response.getBody();
+			assertThat(environment).isNotNull();
+			assertThat(environment.getPropertySources()).hasSizeGreaterThanOrEqualTo(3);
+
+			assertThat(environment.getPropertySources().get(0).getName()).isEqualTo("secret.gateway.default.default");
+			assertThat(environment.getPropertySources().get(1).getName()).contains("nativeProperties");
+
+			assertThat(environment.getPropertySources()).anyMatch(ps -> ps.getName().contains("native"));
+		}
+
+	}
+
+	@Nested
+	@SpringBootTest(classes = { KubernetesConfigServerApplication.class },
+			properties = { "spring.main.cloud-platform=KUBERNETES", "spring.cloud.kubernetes.client.namespace=default",
+					"spring.cloud.config.server.composite[0].type=kubernetes",
+					"spring.cloud.config.server.composite[1].type=native",
+					"spring.cloud.config.server.composite[1].location=file:./native-config" },
+			webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+	@ActiveProfiles({ "test", "composite", "kubernetes", "native" })
+	class KubernetesSecretsDisabledCompositeConfigServerTest {
+
+		@LocalServerPort
+		private int port;
+
+		@MockBean
+		private CoreV1Api coreV1Api;
+
+		@SpyBean
+		private NativeEnvironmentRepository nativeEnvironmentRepository;
+
+		@Test
+		public void contextLoads() throws Exception {
+			when(coreV1Api.listNamespacedConfigMap(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(CONFIGMAP_DEFAULT_LIST);
+			when(coreV1Api.listNamespacedSecret(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(SECRET_DEFAULT_LIST);
+
+			Environment mockNativeEnvironment = new Environment("gateway", "default");
+			mockNativeEnvironment.add(new PropertySource("nativeProperties", Map.of("key1", "value1")));
+
+			when(nativeEnvironmentRepository.findOne(anyString(), anyString(), eq(null), anyBoolean()))
+				.thenReturn(mockNativeEnvironment);
+
+			ResponseEntity<Environment> response = new RestTemplate().exchange(
+					"http://localhost:" + this.port + "/gateway/default", HttpMethod.GET, null, Environment.class);
+
+			Environment environment = response.getBody();
+			assertThat(environment).isNotNull();
+			assertThat(environment.getPropertySources()).hasSizeGreaterThanOrEqualTo(3);
+
+			assertThat(environment.getPropertySources().get(0).getName())
+				.isEqualTo("configmap.gateway.default.default");
+			assertThat(environment.getPropertySources().get(1).getName()).contains("nativeProperties");
+
+			assertThat(environment.getPropertySources()).anyMatch(ps -> ps.getName().contains("native"));
+		}
+
+	}
+
+	@Nested
+	@SpringBootTest(classes = { KubernetesConfigServerApplication.class },
+			properties = { "spring.config.name:compositeconfigserver", "spring.main.cloud-platform=KUBERNETES",
+					"spring.cloud.kubernetes.client.namespace=default",
+					"spring.cloud.config.server.native.search-locations=file:./native-config",
+					"spring.cloud.config.server.native.order=1", "spring.cloud.kubernetes.configserver.order=2",
+					"spring.cloud.kubernetes.secrets.enableApi=true" },
+			webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
+	@ActiveProfiles({ "test", "native", "kubernetes" })
+	class NativeAndKubernetesConfigServerTest {
+
+		@LocalServerPort
+		private int port;
+
+		@MockBean
+		private CoreV1Api coreV1Api;
+
+		@SpyBean
+		private NativeEnvironmentRepository nativeEnvironmentRepository;
+
+		@Test
+		public void contextLoads() throws Exception {
+			when(coreV1Api.listNamespacedConfigMap(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(CONFIGMAP_DEFAULT_LIST);
+			when(coreV1Api.listNamespacedSecret(eq("default"), eq(null), eq(null), eq(null), eq(null), eq(null),
+					eq(null), eq(null), eq(null), eq(null), eq(null), eq(null)))
+				.thenReturn(SECRET_DEFAULT_LIST);
+
+			Environment mockNativeEnvironment = new Environment("gateway", "default");
+			mockNativeEnvironment.add(new PropertySource("nativeProperties", Map.of("key1", "value1")));
+
+			when(nativeEnvironmentRepository.findOne(anyString(), anyString(), eq(null), anyBoolean()))
+				.thenReturn(mockNativeEnvironment);
+
+			ResponseEntity<Environment> response = new RestTemplate().exchange(
+					"http://localhost:" + this.port + "/gateway/default", HttpMethod.GET, null, Environment.class);
+
+			Environment environment = response.getBody();
+
+			assert environment != null;
+			assertThat(3).isEqualTo(environment.getPropertySources().size());
+			assertThat("nativeProperties").isEqualTo(environment.getPropertySources().get(0).getName());
+			assertThat(environment.getPropertySources().get(1).getName().contains("configmap.gateway.default.default")
+					&& !environment.getPropertySources().get(1).getName().contains("nativeProperties"))
+				.isTrue();
+			assertThat(environment.getPropertySources().get(2).getName()).contains("secret.gateway.default.default");
+		}
+
+	}
+
+}