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LocalstackContainerTest.java
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LocalstackContainerTest.java
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package org.testcontainers.containers.localstack;
import com.amazonaws.services.logs.AWSLogs;
import com.amazonaws.services.logs.AWSLogsClientBuilder;
import com.amazonaws.services.logs.model.CreateLogGroupRequest;
import com.amazonaws.services.logs.model.LogGroup;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.Bucket;
import com.amazonaws.services.s3.model.ObjectListing;
import com.amazonaws.services.s3.model.S3Object;
import com.amazonaws.services.sqs.AmazonSQS;
import com.amazonaws.services.sqs.AmazonSQSClientBuilder;
import com.amazonaws.services.sqs.model.CreateQueueResult;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.io.IOUtils;
import org.junit.Assert;
import org.junit.ClassRule;
import org.junit.Test;
import org.junit.experimental.runners.Enclosed;
import org.junit.runner.RunWith;
import org.testcontainers.DockerClientFactory;
import org.testcontainers.containers.Container;
import org.testcontainers.containers.GenericContainer;
import org.testcontainers.containers.Network;
import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3.S3Client;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.List;
import java.util.Optional;
import static org.hamcrest.CoreMatchers.containsString;
import static org.rnorth.visibleassertions.VisibleAssertions.assertEquals;
import static org.rnorth.visibleassertions.VisibleAssertions.assertThat;
import static org.rnorth.visibleassertions.VisibleAssertions.assertTrue;
import static org.testcontainers.containers.localstack.LocalStackContainer.Service.S3;
import static org.testcontainers.containers.localstack.LocalStackContainer.Service.SQS;
import static org.testcontainers.containers.localstack.LocalStackContainer.Service.CLOUDWATCHLOGS;
/**
* Tests for Localstack Container, used both in bridge network (exposed to host) and docker network modes.
* <p>
* These tests attempt simple interactions with the container to verify behaviour. The bridge network tests use the
* Java AWS SDK, whereas the docker network tests use an AWS CLI container within the network, to simulate usage of
* Localstack from within a Docker network.
*/
@Slf4j
@RunWith(Enclosed.class)
public class LocalstackContainerTest {
public static class WithoutNetwork {
// without_network {
@ClassRule
public static LocalStackContainer localstack = new LocalStackContainer()
.withServices(S3, SQS, CLOUDWATCHLOGS);
// }
@Test
public void s3TestOverBridgeNetwork() throws IOException {
AmazonS3 s3 = AmazonS3ClientBuilder
.standard()
.withEndpointConfiguration(localstack.getEndpointConfiguration(S3))
.withCredentials(localstack.getDefaultCredentialsProvider())
.build();
final String bucketName = "foo";
s3.createBucket(bucketName);
s3.putObject(bucketName, "bar", "baz");
final List<Bucket> buckets = s3.listBuckets();
final Optional<Bucket> maybeBucket = buckets.stream().filter(b -> b.getName().equals(bucketName)).findFirst();
assertTrue("The created bucket is present", maybeBucket.isPresent());
final Bucket bucket = maybeBucket.get();
assertEquals("The created bucket has the right name", bucketName, bucket.getName());
final ObjectListing objectListing = s3.listObjects(bucketName);
assertEquals("The created bucket has 1 item in it", 1, objectListing.getObjectSummaries().size());
final S3Object object = s3.getObject(bucketName, "bar");
final String content = IOUtils.toString(object.getObjectContent(), Charset.forName("UTF-8"));
assertEquals("The object can be retrieved", "baz", content);
}
@Test
public void s3TestUsingAwsSdkV2() {
S3Client s3 = S3Client
.builder()
.endpointOverride(localstack.getEndpointOverride(LocalStackContainer.Service.S3))
.credentialsProvider(StaticCredentialsProvider.create(AwsBasicCredentials.create(
localstack.getAccessKey(), localstack.getSecretKey()
)))
.region(Region.of(localstack.getRegion()))
.build();
final String bucketName = "foov2";
s3.createBucket(b -> b.bucket(bucketName));
assertTrue("New bucket was created", s3.listBuckets().buckets().stream().anyMatch(b -> b.name().equals(bucketName)));
}
@Test
public void sqsTestOverBridgeNetwork() {
AmazonSQS sqs = AmazonSQSClientBuilder.standard()
.withEndpointConfiguration(localstack.getEndpointConfiguration(SQS))
.withCredentials(localstack.getDefaultCredentialsProvider())
.build();
CreateQueueResult queueResult = sqs.createQueue("baz");
String fooQueueUrl = queueResult.getQueueUrl();
assertThat("Created queue has external hostname URL", fooQueueUrl,
containsString("http://" + DockerClientFactory.instance().dockerHostIpAddress() + ":" + localstack.getMappedPort(SQS.getPort())));
sqs.sendMessage(fooQueueUrl, "test");
final long messageCount = sqs.receiveMessage(fooQueueUrl).getMessages().stream()
.filter(message -> message.getBody().equals("test"))
.count();
assertEquals("the sent message can be received", 1L, messageCount);
}
@Test
public void cloudWatchLogsTestOverBridgeNetwork() {
AWSLogs logs = AWSLogsClientBuilder.standard()
.withEndpointConfiguration(localstack.getEndpointConfiguration(CLOUDWATCHLOGS))
.withCredentials(localstack.getDefaultCredentialsProvider()).build();
logs.createLogGroup(new CreateLogGroupRequest("foo"));
List<LogGroup> groups = logs.describeLogGroups().getLogGroups();
assertEquals("One log group should be created", 1, groups.size());
assertEquals("Name of created log group is [foo]", "foo", groups.get(0).getLogGroupName());
}
}
public static class WithNetwork {
// with_network {
private static Network network = Network.newNetwork();
@ClassRule
public static LocalStackContainer localstackInDockerNetwork = new LocalStackContainer()
.withNetwork(network)
.withNetworkAliases("notthis", "localstack") // the last alias is used for HOSTNAME_EXTERNAL
.withServices(S3, SQS, CLOUDWATCHLOGS);
// }
@ClassRule
public static GenericContainer awsCliInDockerNetwork = new GenericContainer<>("atlassian/pipelines-awscli")
.withNetwork(network)
.withCreateContainerCmdModifier(cmd -> cmd.withEntrypoint("top"))
.withEnv("AWS_ACCESS_KEY_ID", "accesskey")
.withEnv("AWS_SECRET_ACCESS_KEY", "secretkey")
.withEnv("AWS_REGION", "eu-west-1");
@Test
public void s3TestOverDockerNetwork() throws Exception {
runAwsCliAgainstDockerNetworkContainer("s3api create-bucket --bucket foo", S3.getPort());
runAwsCliAgainstDockerNetworkContainer("s3api list-buckets", S3.getPort());
runAwsCliAgainstDockerNetworkContainer("s3 ls s3://foo", S3.getPort());
}
@Test
public void sqsTestOverDockerNetwork() throws Exception {
final String queueCreationResponse = runAwsCliAgainstDockerNetworkContainer("sqs create-queue --queue-name baz", SQS.getPort());
assertThat("Created queue has external hostname URL", queueCreationResponse,
containsString("http://localstack:" + SQS.getPort()));
runAwsCliAgainstDockerNetworkContainer(
String.format("sqs send-message --endpoint http://localstack:%d --queue-url http://localstack:%d/queue/baz --message-body test", SQS.getPort(), SQS.getPort()), SQS.getPort());
final String message = runAwsCliAgainstDockerNetworkContainer(
String.format("sqs receive-message --endpoint http://localstack:%d --queue-url http://localstack:%d/queue/baz", SQS.getPort(), SQS.getPort()), SQS.getPort());
assertTrue("the sent message can be received", message.contains("\"Body\": \"test\""));
}
@Test
public void cloudWatchLogsTestOverDockerNetwork() throws Exception {
runAwsCliAgainstDockerNetworkContainer("logs create-log-group --log-group-name foo", CLOUDWATCHLOGS.getPort());
}
private String runAwsCliAgainstDockerNetworkContainer(String command, final int port) throws Exception {
final String[] commandParts = String.format("/usr/bin/aws --region eu-west-1 %s --endpoint-url http://localstack:%d --no-verify-ssl", command, port).split(" ");
final Container.ExecResult execResult = awsCliInDockerNetwork.execInContainer(commandParts);
Assert.assertEquals(0, execResult.getExitCode());
final String logs = execResult.getStdout() + execResult.getStderr();
log.info(logs);
return logs;
}
}
}