Sonata Software Cloud Support Engineer Interview Questions and Answers

Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

• Dockerfile is used to build Docker images by specifying a series of instructions.

• Each instruction in a Dockerfile creates a layer in the image.

• Common instructions include FROM, RUN, COPY, CMD, and ENTRYPOINT.

• Example: FROM ubuntu:latest, RUN apt-get update, COPY . /app, CMD ["python", "app.py"]

A Docker file contains instructions to build a Docker image.

• Specifies the base image

• Sets environment variables

• Installs dependencies

• Copies files into the image

• Defines commands to run when the container starts