Is there a recommended way to wait for a container to exit

[alexanderankin]

if i have a container that does a task rather than provide a service, and i know it should exit after it is done with its work, is there a method in the testcontainers API that i can call which returns when, or a returns a promise for when, the container will exit?

perhaps something like this?

diff --git a/core/src/main/java/org/testcontainers/containers/GenericContainer.java b/core/src/main/java/org/testcontainers/containers/GenericContainer.java
index bc65cb22..28f04602 100644
--- a/core/src/main/java/org/testcontainers/containers/GenericContainer.java
+++ b/core/src/main/java/org/testcontainers/containers/GenericContainer.java
@@ -6,6 +6,7 @@ import com.fasterxml.jackson.databind.SerializationFeature;
 import com.github.dockerjava.api.DockerClient;
 import com.github.dockerjava.api.command.CreateContainerCmd;
 import com.github.dockerjava.api.command.InspectContainerResponse;
+import com.github.dockerjava.api.exception.DockerClientException;
 import com.github.dockerjava.api.exception.NotFoundException;
 import com.github.dockerjava.api.model.Bind;
 import com.github.dockerjava.api.model.ContainerNetwork;
@@ -954,6 +955,27 @@ public class GenericContainer<SELF extends GenericContainer<SELF>>
         }
     }
 
+    /**
+     * waits until a container is stopped and checks if it worked via inspect
+     *
+     * @param duration how long to wait for the container to exit gracefully
+     * @return if the operation was successful
+     */
+    protected boolean waitUntilContainerStopped(Duration duration) {
+        try {
+            dockerClient.waitContainerCmd(getContainerId())
+                .start()
+                .awaitStatusCode(duration.toMillis(), TimeUnit.MILLISECONDS);
+        } catch (DockerClientException ignored) {
+        }
+
+        try {
+            return Boolean.FALSE.equals(dockerClient.inspectContainerCmd(getContainerId()).exec().getState().getRunning());
+        } catch (NotFoundException e) {
+            return true;
+        }
+    }
+
     /**
      * {@inheritDoc}
      */