Container Exporter: Fail fast if using Docker, but without proper permissions

[christophermaier]

When exporting a container image using Docker, the current exporter does a lot of work (e.g., downloading all the packages needed and setting up a build context) before we even attempt to interact with Docker. As a result, it can take a while before you realize that you don't actually have permission to run Docker (because you're not in the docker group, or because you forgot to run under sudo).

Ideally, when using Docker, the exporter would make a quick test before doing anything else to ensure that it will be able to actually make the container image.

Aha! Link: https://chef.aha.io/features/APPDL-115

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We value your input and contribution. Please leave a comment if this issue still affects you.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. We value your input and contribution. Please leave a comment if this issue still affects you.