Docker Fundamentals

Question 1

What are the main components of a dockerfile?

Answer 1

1. Base image
   FROM python:3.8.3-slim-buster
2. Copy files
   COPY . /src
3. Install dependencies
   RUN pip install -r /src/requirements.txt

Question 1

How do you create a new docker image?

Answer 1

Create a dockerfile or run docker init, then do docker build -t your-app-name . and then docker up -p 8080:8080 your-app-name

Question 2

How do you stop a running docker container?

Answer 2

docker stop your-image-name

Question 3

How do you check the currently running docker images?

Answer 3

docker ps

Question 4

How do you enter a docker container and start a interactive shell?

Answer 4

docker exec -it my_container /bin/bash