Configuring Minio Testcontainers with different default port - spring

Question

Quick summary: How can I change the default port of the minio client running in my test container?
I want to use minio as a testcontainer in my application which already working when I start it locally. here is the codesnippet I use to run the testcontainer:
public class MinioContainer extends GenericContainer<MinioContainer> {
private static final int DEFAULT_PORT = 9000;
private static final String DEFAULT_IMAGE = "/minio/minio";
private static final String DEFAULT_TAG = "latest";
private static final String MINIO_ACCESS_KEY = "MINIO_ACCESS_KEY";
private static final String MINIO_SECRET_KEY = "MINIO_SECRET_KEY";
private static final String DEFAULT_STORAGE_DIRECTORY = "/data";
private static final String HEALTH_ENDPOINT = "/minio/health/ready";
public MinioContainer() {
this(DEFAULT_IMAGE + ":" + DEFAULT_TAG);
}
public MinioContainer(String image) {
super(image == null ? DEFAULT_IMAGE + ":" + DEFAULT_TAG : image);
Network network = Network.newNetwork();
withNetwork(network);
withNetworkAliases("minio-" + Base58.randomString(6));
addExposedPort(DEFAULT_PORT);
withEnv(MINIO_ACCESS_KEY, "access_key");
withEnv(MINIO_SECRET_KEY, "secret_key");
withCommand("server", DEFAULT_STORAGE_DIRECTORY);
setWaitStrategy(new HttpWaitStrategy()
.forPort(DEFAULT_PORT)
.forPath(HEALTH_ENDPOINT)
.withStartupTimeout(Duration.ofMinutes(1)));
}
public String getHostAddress() {
return getHost() + ":" + getMappedPort(DEFAULT_PORT);
}
}
As soon as I deploy this on our cluster, where also an minio container is running at port 9000, it shows this error message in the console:
io.minio.errors.ErrorResponseException: The Access Key Id you provided does not exist in our records.
at some.package.MinioTest.setup(MinioTest.java:58)
In my test i am running a SpringBootTest using this container and injecting my minio client. I also configured a test application yaml so I can run my test with an active test profile. The error happens on following code snippet:
private final String BUCKET = "bucket";
....
#BeforeEach
void setup() {
boolean bucketExists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(BUCKET).build());
...
}
Is there a way to change the DEFAULT_PORT on my MinioContainer so it is not the same port as the minio container already running on my cluster? I am not able to get my tests running on our pipeline because of this issue, which is only happening on our cluster.
As soon as I change the DEFAULT_PORT to something different than 9000 on my MinioContainer, the Container stops working because it is not able to find the HEALTH_ENDPOINT and therefor the whole container just stops working.
I hope I explained my problem clear enough. If not please tell me so I can try to explain it clearer. I am already completely frustrated with this issue.
BR
Null

Answer 1

I found the solution for my problem. Minio supports the following command:
"server /data --address :9100"
Now I was able to generate my testcontainer now like this:
public static GenericContainer<?> minioContainer = new GenericContainer<>(MINIO_IMAGE)
.withCommand("server /data --address :9100")
.withExposedPorts(9100);
Now the MinioContainer in my Test runs with Port 9100.
Hopefully I was able to help someone else with this issue.