Add app health check support to Dapr Testcontainer (#1213)

* Add app health check support to Dapr Testcontainer

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Some minor cleanup

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

* Move waiting to beforeEach, it looks more natural

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>

---------

Signed-off-by: Artur Ciocanu <ciocanu@adobe.com>
Co-authored-by: Artur Ciocanu <ciocanu@adobe.com>

sdk-tests/src/test/java/io/dapr/it/spring/messaging/DaprSpringMessagingIT.java

@@ -23,16 +23,14 @@ import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Tag;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.Disabled;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
 import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
-import org.springframework.test.context.DynamicPropertyRegistry;
-import org.springframework.test.context.DynamicPropertySource;
 import org.testcontainers.containers.Network;
+import org.testcontainers.containers.wait.strategy.Wait;
 import org.testcontainers.junit.jupiter.Container;
 import org.testcontainers.junit.jupiter.Testcontainers;
 
@@ -56,8 +54,9 @@ public class DaprSpringMessagingIT {
   private static final Logger logger = LoggerFactory.getLogger(DaprSpringMessagingIT.class);
 
   private static final String TOPIC = "mockTopic";
-
   private static final Network DAPR_NETWORK = Network.newNetwork();
+  private static final int APP_PORT = 8080;
+  private static final String SUBSCRIPTION_MESSAGE_PATTERN = ".*app is subscribed to the following topics.*";
 
   @Container
   @ServiceConnection
@@ -65,7 +64,8 @@ public class DaprSpringMessagingIT {
       .withAppName("messaging-dapr-app")
       .withNetwork(DAPR_NETWORK)
       .withComponent(new Component("pubsub", "pubsub.in-memory", "v1", Collections.emptyMap()))
-      .withAppPort(8080)
+      .withAppPort(APP_PORT)
+      .withAppHealthCheckPath("/ready")
       .withDaprLogLevel(DaprLogLevel.DEBUG)
       .withLogConsumer(outputFrame -> System.out.println(outputFrame.getUtf8String()))
       .withAppChannelAddress("host.testcontainers.internal");
@@ -78,16 +78,16 @@ public class DaprSpringMessagingIT {
 
   @BeforeAll
   public static void beforeAll(){
-    org.testcontainers.Testcontainers.exposeHostPorts(8080);
+    org.testcontainers.Testcontainers.exposeHostPorts(APP_PORT);
   }
 
   @BeforeEach
-  public void beforeEach() throws InterruptedException {
-    Thread.sleep(1000);
+  public void beforeEach() {
+    // Ensure the subscriptions are registered
+    Wait.forLogMessage(SUBSCRIPTION_MESSAGE_PATTERN, 1).waitUntilReady(DAPR_CONTAINER);
   }
 
   @Test
-  @Disabled("Test is flaky due to global state in the spring test application.")
   public void testDaprMessagingTemplate() throws InterruptedException {
     for (int i = 0; i < 10; i++) {
       var msg = "ProduceAndReadWithPrimitiveMessageType:" + i;

sdk-tests/src/test/java/io/dapr/it/spring/messaging/TestRestController.java

@@ -33,7 +33,7 @@ public class TestRestController {
   private static final Logger LOG = LoggerFactory.getLogger(TestRestController.class);
   private final List<CloudEvent<String>> events = new ArrayList<>();
 
-  @GetMapping("/")
+  @GetMapping("/ready")
   public String ok() {
     return "OK";
   }

testcontainers-dapr/src/main/java/io/dapr/testcontainers/DaprContainer.java

@@ -68,6 +68,7 @@ public class DaprContainer extends GenericContainer<DaprContainer> {
   private DaprPlacementContainer placementContainer;
   private String appName;
   private Integer appPort;
+  private String appHealthCheckPath;
   private boolean shouldReusePlacement;
 
   /**
@@ -116,6 +117,11 @@ public class DaprContainer extends GenericContainer<DaprContainer> {
     return this;
   }
 
+  public DaprContainer withAppHealthCheckPath(String appHealthCheckPath) {
+    this.appHealthCheckPath = appHealthCheckPath;
+    return this;
+  }
+
   public DaprContainer withConfiguration(Configuration configuration) {
     this.configuration = configuration;
     return this;
@@ -173,7 +179,7 @@ public class DaprContainer extends GenericContainer<DaprContainer> {
    */
   public DaprContainer withComponent(Path path) {
     try {
-      Map<String, Object> component = this.YAML_MAPPER.loadAs(Files.newInputStream(path), Map.class);
+      Map<String, Object> component = YAML_MAPPER.loadAs(Files.newInputStream(path), Map.class);
 
       String type = (String) component.get("type");
       Map<String, Object> metadata = (Map<String, Object>) component.get("metadata");
@@ -233,12 +239,12 @@ public class DaprContainer extends GenericContainer<DaprContainer> {
 
     List<String> cmds = new ArrayList<>();
     cmds.add("./daprd");
-    cmds.add("-app-id");
+    cmds.add("--app-id");
     cmds.add(appName);
     cmds.add("--dapr-listen-addresses=0.0.0.0");
     cmds.add("--app-protocol");
     cmds.add(DAPR_PROTOCOL.getName());
-    cmds.add("-placement-host-address");
+    cmds.add("--placement-host-address");
     cmds.add(placementService + ":50005");
 
     if (appChannelAddress != null && !appChannelAddress.isEmpty()) {
@@ -251,6 +257,12 @@ public class DaprContainer extends GenericContainer<DaprContainer> {
       cmds.add(Integer.toString(appPort));
     }
 
+    if (appHealthCheckPath != null && !appHealthCheckPath.isEmpty()) {
+      cmds.add("--enable-app-health-check");
+      cmds.add("--app-health-check-path");
+      cmds.add(appHealthCheckPath);
+    }
+
     if (configuration != null) {
       cmds.add("--config");
       cmds.add("/dapr-resources/" + configuration.getName() + ".yaml");