/* * Copyright 2014-2018 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 * * 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 de.codecentric.boot.admin.server.cloud; import de.codecentric.boot.admin.server.config.EnableAdminServer; import reactor.core.publisher.Flux; import reactor.test.StepVerifier; import java.net.URI; import java.time.Duration; import java.util.List; import java.util.concurrent.atomic.AtomicReference; import org.json.JSONObject; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.springframework.boot.SpringBootConfiguration; import org.springframework.boot.WebApplicationType; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.cloud.client.discovery.event.InstanceRegisteredEvent; import org.springframework.cloud.client.discovery.simple.SimpleDiscoveryProperties; import org.springframework.context.ConfigurableApplicationContext; import org.springframework.context.annotation.Bean; import org.springframework.http.MediaType; import org.springframework.http.codec.json.Jackson2JsonDecoder; import org.springframework.http.codec.json.Jackson2JsonEncoder; import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity; import org.springframework.security.config.web.server.ServerHttpSecurity; import org.springframework.security.web.server.SecurityWebFilterChain; import org.springframework.test.web.reactive.server.WebTestClient; import org.springframework.web.reactive.function.client.ExchangeStrategies; import com.fasterxml.jackson.databind.ObjectMapper; import com.fasterxml.jackson.datatype.jsonorg.JsonOrgModule; import static java.util.Collections.singletonList; import static org.assertj.core.api.Assertions.assertThat; public class AdminApplicationDiscoveryTest { private ConfigurableApplicationContext instance; private SimpleDiscoveryProperties simpleDiscovery; private WebTestClient webClient; private int port; @Before public void setUp() { instance = new SpringApplicationBuilder().sources(TestAdminApplication.class) .web(WebApplicationType.REACTIVE) .run("--server.port=0", "--management.endpoints.web.base-path=/mgmt", "--endpoints.health.enabled=true", "--info.test=foobar", "--eureka.client.enabled=false"); simpleDiscovery = instance.getBean(SimpleDiscoveryProperties.class); this.port = instance.getEnvironment().getProperty("local.server.port", Integer.class, 0); this.webClient = createWebClient(this.port); } @Test public void lifecycle() { AtomicReference<URI> location = new AtomicReference<>(); StepVerifier.create(getEventStream().log()) .expectSubscription() .then(() -> { listEmptyInstances(); location.set(registerInstance()); }) .assertNext((event) -> assertThat(event.opt("type")).isEqualTo("REGISTERED")) .assertNext((event) -> assertThat(event.opt("type")).isEqualTo("STATUS_CHANGED")) .assertNext((event) -> assertThat(event.opt("type")).isEqualTo("ENDPOINTS_DETECTED")) .assertNext((event) -> assertThat(event.opt("type")).isEqualTo("INFO_CHANGED")) .then(() -> { getInstance(location.get()); listInstances(); deregisterInstance(); }) .assertNext((event) -> assertThat(event.opt("type")).isEqualTo("DEREGISTERED")) .then(this::listEmptyInstances) .thenCancel() .verify(Duration.ofSeconds(60)); } private URI registerInstance() { //We register the instance by setting static values for the SimpleDiscoveryClient and issuing a //InstanceRegisteredEvent that makes sure the instance gets registered. SimpleDiscoveryProperties.SimpleServiceInstance serviceInstance = new SimpleDiscoveryProperties.SimpleServiceInstance(); serviceInstance.setServiceId("Test-Instance"); serviceInstance.setUri(URI.create("http://localhost:" + port)); serviceInstance.getMetadata().put("management.context-path", "/mgmt"); simpleDiscovery.getInstances().put("Test-Application", singletonList(serviceInstance)); instance.publishEvent(new InstanceRegisteredEvent<>(new Object(), null)); //To get the location of the registered instances we fetch the instance with the name. List<JSONObject> applications = webClient.get() .uri("/instances?name=Test-Instance") .accept(MediaType.APPLICATION_JSON) .exchange() .expectStatus() .isOk() .returnResult(JSONObject.class) .getResponseBody() .collectList() .block(); assertThat(applications).hasSize(1); return URI.create("http://localhost:" + port + "/instances/" + applications.get(0).optString("id")); } private void deregisterInstance() { simpleDiscovery.getInstances().clear(); instance.publishEvent(new InstanceRegisteredEvent<>(new Object(), null)); } private Flux<JSONObject> getEventStream() { //@formatter:off return webClient.get().uri("/instances/events").accept(MediaType.TEXT_EVENT_STREAM) .exchange() .expectStatus().isOk() .expectHeader().contentTypeCompatibleWith(MediaType.TEXT_EVENT_STREAM) .returnResult(JSONObject.class).getResponseBody(); //@formatter:on } private void getInstance(URI uri) { //@formatter:off webClient.get().uri(uri).accept(MediaType.APPLICATION_JSON_UTF8) .exchange() .expectStatus().isOk() .expectBody() .jsonPath("$.registration.name").isEqualTo("Test-Instance") .jsonPath("$.statusInfo.status").isEqualTo("UP") .jsonPath("$.info.test").isEqualTo("foobar"); //@formatter:on } private void listInstances() { //@formatter:off webClient.get().uri("/instances").accept(MediaType.APPLICATION_JSON_UTF8) .exchange() .expectStatus().isOk() .expectBody() .jsonPath("$[0].registration.name").isEqualTo("Test-Instance") .jsonPath("$[0].statusInfo.status").isEqualTo("UP") .jsonPath("$[0].info.test").isEqualTo("foobar"); //@formatter:on } private void listEmptyInstances() { //@formatter:off webClient.get().uri("/instances").accept(MediaType.APPLICATION_JSON_UTF8) .exchange() .expectStatus().isOk() .expectBody().json("[]"); //@formatter:on } private WebTestClient createWebClient(int port) { ObjectMapper mapper = new ObjectMapper().registerModule(new JsonOrgModule()); return WebTestClient.bindToServer() .baseUrl("http://localhost:" + port) .exchangeStrategies(ExchangeStrategies.builder().codecs((configurer) -> { configurer.defaultCodecs().jackson2JsonDecoder(new Jackson2JsonDecoder(mapper)); configurer.defaultCodecs().jackson2JsonEncoder(new Jackson2JsonEncoder(mapper)); }).build()) .build(); } @After public void shutdown() { instance.close(); } @EnableAdminServer @EnableAutoConfiguration @SpringBootConfiguration @EnableWebFluxSecurity public static class TestAdminApplication { @Bean SecurityWebFilterChain securityWebFilterChain(ServerHttpSecurity http) { return http.authorizeExchange().anyExchange().permitAll()// .and().csrf().disable()// .build(); } } }