Docker
/Beginner
Pulling Images
Definition
The automated process of downloading image layers from a registry to a local machine. It checks the local cache first before communicating with the remote server.
Explain Like I'm New
Downloading the app from the cloud to your computer.
Real World Example
A Kubernetes cluster needs to scale up. It commands 5 new servers to spin up the app. Each server automatically executes a `docker pull` to fetch the image from the registry before starting the container.
Common Use Cases
- •Deploying applications
- •Updating software
Interview Questions
basic
- If you don't specify a tag during a pull, what tag does Docker default to?