Interview Q&A / Docker & Kubernetes

1. Why is data in a container temporary, and what are Docker volumes and bind mounts?

   Files a container writes go into its own writable layer, which is deleted when the container is removed. To keep data, you mount storage from outside the container. A volume is storage managed by Docker; a bind mount maps a specific folder from the host into the container.

   BeginnerIn-depth3 min read
2. What is the difference between a named volume and a bind mount?

   A named volume is storage created and managed by Docker, stored in its own area and portable between containers. A bind mount maps an exact host folder into the container, which suits live code editing but depends on the host layout.

   BeginnerQuick answer1 min read