ecresolve

Resolves AWS ECR images with prioritized tag-based lookup

Installation

You can install ecresolve using Homebrew, from source, or by downloading the binary.

In case you're using Homebrew:

brew install ebi-yade/tap/ecresolve

Other ways

From Source

go install github.com/ebi-yade/ecresolve@latest

Downloading the Binary

You can download the binary from the releases page,

Usage

Let's say you have a repository named <your-repository> with only two tags: latest and stable.

If you run a query with three tags like this:

ecresolve foo latest stable --repository-name <your-repository-name>

The latest image will be returned since it's the first matching tag found in the list of provided candidates:

{
  "imageId": {
    "imageDigest": "sha256:XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
    "imageTag": "latest"
  },
  "imageManifest": " <abbreviated escaped JSON string>",
  "imageManifestMediaType": "application/vnd.oci.image.index.v1+json",
  "registryId": "<your-aws-account-id>",
  "repositoryName": "<your-repository-name>"
}

Note: The response is compatible with the Image object from the AWS ECR API.

If none of the specified tags exist, the command will fail with the following error and exit with code 1:

ecresolve foo bar --repository-name <your-repository-name>
# stderr -> "2024/10/24 18:15:02 ERROR error Resolve: no matching images found"

Specifying --format=tag-only will be helpful if you just want to get the tag name:

ecresolve foo latest stable --repository-name <your-repository-name> --format=tag-only
# stdout -> "latest"

Contributing

Feel free to open an issue or a pull request if you have any suggestions or improvements in mind.

日本語でのIssueやPRも歓迎です!