Providing a Container Registry from the Command Line

[callajd]

Hello,

First, this plugin is great and it has been a pleasant surprise to discover and use. Kudos and thanks!

Second, I have a question. My GitHub workflow logs in to an AWS container registry, which provides the URL to the registry as an output that looks like 111111111.dkr.ecr.us-west-2.amazonaws.com. For any docker enabled application, to get the full image name, I combine the registry URL with the application name. So, for an application called cloud, the full image name is 111111111.dkr.ecr.us-west-2.amazonaws.com/cloud.

Now, I'm trying to combine the above with a call to nx affected, like so:

npx nx affected -t lint test container

The problem is, neither the registry URL nor the set of applications affected are known until build time. For each affected application, I need to combine the application name with the registry URL provided by a previous build step. Intuitively, I'd want to accomplish this by doing something like this in the cloud application's project.json (note the images value in particular):

  "targets": {
    "container": {
      "executor": "@nx-tools/nx-container:build",
      "options": {
        "engine": "docker",
        "metadata": {
          "images": ["$REGISTRY_NAME/cloud"],
          "push": true,
          "tags": [
            "type=schedule",
            "type=ref,event=branch",
            "type=ref,event=tag",
            "type=ref,event=pr",
            "type=sha,prefix=sha-"
          ]
        }
      }
    }
  }

Combined with setting the build-time environment variable $REGISTRY_NAME before running nx affected:

REGISTRY_NAME=$ECR_REGISTRY npx nx affected -t lint test build container

Is this possible with nx-container and nx affected builds today? I couldn't find any information regarding a REGISTRY setting independent of the image name, and I'd rather not capture, parse, tag and push the individual projects that were built by the nx affected command.

Additional comment here: #619 (comment)

Cheers and thanks.