Use CreateRepository with an AWS SDK or CLI

Example 1: To create a repository

The following create-repository example creates a repository inside the specified namespace in the default registry for an account.

aws ecr create-repository \
    --repository-name project-a/sample-repo

Output:

{
    "repository": {
        "registryId": "123456789012",
        "repositoryName": "project-a/sample-repo",
        "repositoryArn": "arn:aws:ecr:us-west-2:123456789012:repository/project-a/sample-repo"
    }
}

For more information, see Creating a Repository in the Amazon ECR User Guide.

Example 2: To create a repository configured with image tag immutability

The following create-repository example creates a repository configured for tag immutability in the default registry for an account.

aws ecr create-repository \
    --repository-name project-a/sample-repo \
    --image-tag-mutability IMMUTABLE

Output:

{
    "repository": {
        "registryId": "123456789012",
        "repositoryName": "project-a/sample-repo",
        "repositoryArn": "arn:aws:ecr:us-west-2:123456789012:repository/project-a/sample-repo",
        "imageTagMutability": "IMMUTABLE"
    }
}

For more information, see Image Tag Mutability in the Amazon ECR User Guide.

Example 3: To create a repository configured with a scanning configuration

The following create-repository example creates a repository configured to perform a vulnerability scan on image push in the default registry for an account.

aws ecr create-repository \
    --repository-name project-a/sample-repo \
    --image-scanning-configuration scanOnPush=true

Output:

{
    "repository": {
        "registryId": "123456789012",
        "repositoryName": "project-a/sample-repo",
        "repositoryArn": "arn:aws:ecr:us-west-2:123456789012:repository/project-a/sample-repo",
        "imageScanningConfiguration": {
            "scanOnPush": true
        }
    }
}

For more information, see Image Scanning in the Amazon ECR User Guide.

    /**
     * Creates an Amazon Elastic Container Registry (Amazon ECR) repository.
     *
     * @param repoName the name of the repository to create.
     * @return the Amazon Resource Name (ARN) of the created repository, or an empty string if the operation failed.
     * @throws IllegalArgumentException     If repository name is invalid.
     * @throws RuntimeException             if an error occurs while creating the repository.
     */
    public String createECRRepository(String repoName) {
        if (repoName == null || repoName.isEmpty()) {
            throw new IllegalArgumentException("Repository name cannot be null or empty");
        }

        CreateRepositoryRequest request = CreateRepositoryRequest.builder()
            .repositoryName(repoName)
            .build();

        CompletableFuture<CreateRepositoryResponse> response = getAsyncClient().createRepository(request);
        try {
            CreateRepositoryResponse result = response.join();
            if (result != null) {
                System.out.println("The " + repoName + " repository was created successfully.");
                return result.repository().repositoryArn();
            } else {
                throw new RuntimeException("Unexpected response type");
            }
        } catch (CompletionException e) {
            Throwable cause = e.getCause();
            if (cause instanceof EcrException ex) {
                if ("RepositoryAlreadyExistsException".equals(ex.awsErrorDetails().errorCode())) {
                    System.out.println("The Amazon ECR repository already exists, moving on...");
                    DescribeRepositoriesRequest describeRequest = DescribeRepositoriesRequest.builder()
                        .repositoryNames(repoName)
                        .build();
                    DescribeRepositoriesResponse describeResponse = getAsyncClient().describeRepositories(describeRequest).join();
                    return describeResponse.repositories().get(0).repositoryArn();
                } else {
                    throw new RuntimeException(ex);
                }
            } else {
                throw new RuntimeException(e);
            }
        }
    }

    /**
     * Creates an Amazon Elastic Container Registry (Amazon ECR) repository.
     *
     * @param repoName the name of the repository to create.
     * @return the Amazon Resource Name (ARN) of the created repository, or an empty string if the operation failed.
     * @throws RepositoryAlreadyExistsException if the repository exists.
     * @throws EcrException         if an error occurs while creating the repository.
     */
    suspend fun createECRRepository(repoName: String?): String? {
        val request =
            CreateRepositoryRequest {
                repositoryName = repoName
            }

        return try {
            EcrClient { region = "us-east-1" }.use { ecrClient ->
                val response = ecrClient.createRepository(request)
                response.repository?.repositoryArn
            }
        } catch (e: RepositoryAlreadyExistsException) {
            println("Repository already exists: $repoName")
            repoName?.let { getRepoARN(it) }
        } catch (e: EcrException) {
            println("An error occurred: ${e.message}")
            null
        }
    }

class ECRWrapper:
    def __init__(self, ecr_client: client):
        self.ecr_client = ecr_client

    @classmethod
    def from_client(cls) -> "ECRWrapper":
        """
        Creates a ECRWrapper instance with a default Amazon ECR client.

        :return: An instance of ECRWrapper initialized with the default Amazon ECR client.
        """
        ecr_client = boto3.client("ecr")
        return cls(ecr_client)


    def create_repository(self, repository_name: str) -> dict[str, any]:
        """
        Creates an ECR repository.

        :param repository_name: The name of the repository to create.
        :return: A dictionary of the created repository.
        """
        try:
            response = self.ecr_client.create_repository(repositoryName=repository_name)
            return response["repository"]
        except ClientError as err:
            if err.response["Error"]["Code"] == "RepositoryAlreadyExistsException":
                print(f"Repository {repository_name} already exists.")
                response = self.ecr_client.describe_repositories(
                    repositoryNames=[repository_name]
                )
                return self.describe_repositories([repository_name])[0]
            else:
                logger.error(
                    "Error creating repository %s. Here's why %s",
                    repository_name,
                    err.response["Error"]["Message"],
                )
                raise