Validate Image Builder resource creation with a dry run - EC2 Image Builder
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Validate Image Builder resource creation with a dry run

With a dry run, you can check whether a request to create an Image Builder resource would succeed, without creating the resource. When you set the dryRun parameter to true in your request, Image Builder validates the required permissions and request parameters, and then stops before it creates anything. The outcome is one of the following:

  • If validation succeeds, the request fails with a DryRunOperationException error. This error indicates that the request is valid, and that the resource creation would have succeeded without the dryRun parameter.

  • If validation fails, the request returns the same error that it would return without the dryRun parameter, for example InvalidParameterValueException or ResourceAlreadyExistsException.

In both cases, Image Builder doesn't create the resource. Dry runs give you immediate feedback on your resource configurations. This is especially useful for automation and AI agents that create Image Builder resources. Such tools can validate each configuration and correct errors before they create anything.

The following create actions support the dryRun parameter:

  • CreateComponent

  • CreateContainerRecipe

  • CreateDistributionConfiguration

  • CreateImagePipeline

  • CreateImageRecipe

  • CreateInfrastructureConfiguration

  • CreateLifecyclePolicy

  • CreateWorkflow

Note

The CreateImage action doesn't support the dryRun parameter, because it starts an image build rather than creating a configuration resource.

Perform a dry run from the AWS CLI

The following example shows how to validate an infrastructure configuration with the create-infrastructure-configuration command. The --dry-run option turns the request into a dry run.

aws imagebuilder create-infrastructure-configuration \
    --name my-example-infrastructure-configuration \
    --instance-profile-name EC2InstanceProfileForImageBuilder \
    --dry-run

If the configuration is valid, the command returns the following error to show that the request would have succeeded.

An error occurred (DryRunOperationException) when calling the CreateInfrastructureConfiguration operation: Request would have succeeded, but dryRun flag is set.