Inspect a Docker Image

I’m currently trying to dockerize my AngularJS Protractor tests. I kept getting a File not found error, but I was pretty sure I’d COPYed everything to the image I needed. The easiest way to check is to get into the image yourself!

1. Find the image you want to inspect: docker image. Woa. That’s a lot of images. Hopefully, you’ve been naming images, but you can see just how much bloat Docker can create. Copy the image name you want to inspect, but make a mental note to Google “remove unused Docker images.”

2. Enter docker run -it --rm <imagename> bash. Run the image with interactive terminal (-it) and remove it when we exit out of bash (–rm). Now that you’re in the image, you can cd and ls around to ensure you copied over all the files you wanted.