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@aws-cdk/assets-docker

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@aws-cdk/assets-docker

Docker image assets

  • 0.25.0
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  • npm
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AWS CDK Docker Image Assets

This module allows bundling Docker images as assets.

Images are built from a local Docker context directory (with a Dockerfile), uploaded to ECR by the CDK toolkit and/or your app's CI-CD pipeline, and can be naturally referenced in your CDK app.

import { DockerImageAsset } from '@aws-cdk/assets-docker';

const asset = new DockerImageAsset(this, 'MyBuildImage', {
  directory: path.join(__dirname, 'my-image')
});

The directory my-image must include a Dockerfile.

This will instruct the toolkit to build a Docker image from my-image, push it to an AWS ECR repository and wire the name of the repository as CloudFormation parameters to your stack.

Use asset.imageUri can be used to reference the image (it includes both the ECR image URL and tag.

Pull Permissions

Depending on the consumer of your image asset, you will need to make sure the principal has permissions to pull the image.

In most cases, you should use the asset.repository.grantPull(principal) method. This will modify the IAM policy of the principal to allow it to pull images from this repository.

If the pulling principal is not in the same account or is an AWS service that doesn't assume a role in your account (e.g. AWS CodeBuild), pull permissions must be granted on the resource policy (and not on the principal's policy). To do that, you can use asset.repository.addToResourcePolicy(statement) to grant the desired principal the following permissions: "ecr:GetDownloadUrlForLayer", "ecr:BatchGetImage" and "ecr:BatchCheckLayerAvailability".

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Package last updated on 28 Feb 2019

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