Add withBuckets method in MinIOContainer

modules/minio/src/main/java/org/testcontainers/containers/MinIOContainer.java

@@ -1,10 +1,16 @@
 package org.testcontainers.containers;
 
+import com.github.dockerjava.api.command.InspectContainerResponse;
 import org.testcontainers.containers.wait.strategy.Wait;
 import org.testcontainers.utility.DockerImageName;
 
+import java.io.IOException;
 import java.time.Duration;
 import java.time.temporal.ChronoUnit;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
 
 /**
  * Testcontainers implementation for MinIO.
@@ -29,12 +35,15 @@ public class MinIOContainer extends GenericContainer<MinIOContainer> {
 
     private static final String DEFAULT_PASSWORD = "minioadmin";
 
+    private final List<String> buckets = new ArrayList<>();
+
     private String userName;
 
     private String password;
 
     /**
      * Constructs a MinIO container from the dockerImageName
+     *
      * @param dockerImageName the full image name to use
      */
     public MinIOContainer(final String dockerImageName) {
@@ -43,6 +52,7 @@ public MinIOContainer(final String dockerImageName) {
 
     /**
      * Constructs a MinIO container from the dockerImageName
+     *
      * @param dockerImageName the full image name to use
      */
     public MinIOContainer(final DockerImageName dockerImageName) {
@@ -60,6 +70,7 @@ public MinIOContainer(final DockerImageName dockerImageName) {
 
     /**
      * Overrides the DEFAULT_USER
+     *
      * @param userName the Root user to override
      * @return this
      */
@@ -70,6 +81,7 @@ public MinIOContainer withUserName(String userName) {
 
     /**
      * Overrides the DEFAULT_PASSWORD
+     *
      * @param password the Root user's password to override
      * @return this
      */
@@ -78,6 +90,17 @@ public MinIOContainer withPassword(String password) {
         return this;
     }
 
+    /**
+     * Create buckets after container started
+     *
+     * @param buckets bucket list
+     * @return this
+     */
+    public MinIOContainer withBuckets(String... buckets) {
+        this.buckets.addAll(Arrays.stream(buckets).collect(Collectors.toList()));
+        return this;
+    }
+
     /**
      * Configures the MinIO container
      */
@@ -115,4 +138,28 @@ public String getUserName() {
     public String getPassword() {
         return this.password;
     }
+
+    @Override
+    protected void containerIsStarted(InspectContainerResponse containerInfo) {
+        if (!buckets.isEmpty()) {
+            try {
+                ExecResult setAliasExecResult = execInContainer("mc", "alias", "set", "local", String.format("http://localhost:%s", MINIO_S3_PORT), userName, password);
+                if (setAliasExecResult.getExitCode() == 0) {
+                    for (String bucket : buckets) {
+                        ExecResult createBucketExecResult = execInContainer("mc", "mb", String.format("local/%s", bucket));
+                        if (createBucketExecResult.getExitCode() == 0) {
+                            logger().info("Create bucket {}", bucket);
+                        } else {
+                            logger().error("Cannot create bucket {}: {}", bucket, createBucketExecResult.getStderr());
+                        }
+                    }
+                } else {
+                    logger().error("Cannot set local alias {}", setAliasExecResult.getStderr());
+                }
+            } catch (IOException | InterruptedException e) {
+                logger().error("Cannot create buckets {}", buckets, e);
+            }
+        }
+    }
+
 }

modules/minio/src/test/java/org/testcontainers/containers/MinIOContainerTest.java

@@ -6,19 +6,23 @@
 import io.minio.StatObjectArgs;
 import io.minio.StatObjectResponse;
 import io.minio.UploadObjectArgs;
+import io.minio.messages.Bucket;
 import org.junit.jupiter.api.Test;
 
 import java.net.URL;
+import java.util.List;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
 class MinIOContainerTest {
 
+    static final String MINIO_DOCKER_IMAGE_NAME = "minio/minio:RELEASE.2023-09-04T19-57-37Z";
+
     @Test
     void testBasicUsage() throws Exception {
         try (
             // minioContainer {
-            MinIOContainer container = new MinIOContainer("minio/minio:RELEASE.2023-09-04T19-57-37Z");
+            MinIOContainer container = new MinIOContainer(MINIO_DOCKER_IMAGE_NAME);
             // }
         ) {
             container.start();
@@ -58,7 +62,7 @@ void testBasicUsage() throws Exception {
 
     @Test
     void testDefaultUserPassword() {
-        try (MinIOContainer container = new MinIOContainer("minio/minio:RELEASE.2023-09-04T19-57-37Z")) {
+        try (MinIOContainer container = new MinIOContainer(MINIO_DOCKER_IMAGE_NAME)) {
             container.start();
             assertThat(container.getUserName()).isEqualTo("minioadmin");
             assertThat(container.getPassword()).isEqualTo("minioadmin");
@@ -69,7 +73,7 @@ void testDefaultUserPassword() {
     void testOverwriteUserPassword() {
         try (
             // minioOverrides {
-            MinIOContainer container = new MinIOContainer("minio/minio:RELEASE.2023-09-04T19-57-37Z")
+            MinIOContainer container = new MinIOContainer(MINIO_DOCKER_IMAGE_NAME)
                 .withUserName("testuser")
                 .withPassword("testpassword");
             // }
@@ -79,4 +83,52 @@ void testOverwriteUserPassword() {
             assertThat(container.getPassword()).isEqualTo("testpassword");
         }
     }
+
+    @Test
+    void testWithBuckets() throws Exception {
+        try (MinIOContainer container = new MinIOContainer(MINIO_DOCKER_IMAGE_NAME)
+            .withUserName("testuser")
+            .withPassword("testpassword")
+            .withBuckets("first", "second")) {
+            container.start();
+
+            MinioClient minioClient = MinioClient
+                .builder()
+                .endpoint(container.getS3URL())
+                .credentials(container.getUserName(), container.getPassword())
+                .build();
+
+            BucketExistsArgs firstBucketArgs = BucketExistsArgs.builder().bucket("first").build();
+            BucketExistsArgs secondBucketArgs = BucketExistsArgs.builder().bucket("second").build();
+
+            List<Bucket> bucketList = minioClient.listBuckets();
+
+            assertThat(bucketList).hasSize(2);
+            assertThat(minioClient.bucketExists(firstBucketArgs)).isTrue();
+            assertThat(minioClient.bucketExists(secondBucketArgs)).isTrue();
+
+            minioClient.close();
+        }
+    }
+
+    @Test
+    void testWithBucketsEmpty() throws Exception {
+        try (MinIOContainer container = new MinIOContainer(MINIO_DOCKER_IMAGE_NAME)
+            .withUserName("testuser")
+            .withPassword("testpassword")
+            .withBuckets()) {
+            container.start();
+
+            MinioClient minioClient = MinioClient
+                .builder()
+                .endpoint(container.getS3URL())
+                .credentials(container.getUserName(), container.getPassword())
+                .build();
+
+            assertThat(minioClient.listBuckets()).isEmpty();
+
+            minioClient.close();
+        }
+    }
+
 }