In a Dockerfile, RUN and CMD are two important instructions, but they serve different purposes.

Open a terminal or command prompt and navigate to the directory where the Docker image is located.

Using the docker inspect command we are able to get the IP address of a Docker container from the host. The docker inspect command allows you to retrieve detailed information about a container, including its IP address.

Here we are going to learn about how to resolve the error Docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock.

You can pass environment variables to Docker containers in a few different ways, able to pass the environment in Dockerfile, while running the docker container, and docker-compose file.

This post will explain you what is the difference between docker image and docker container. Everything starts with the Dockerfile. The Dockerfile is the source code of the image.

If we use the command COPY docker file copies from local source to destination in the docker container. At the same time ADD command copy file / directories into the Docker image. ADD can also copy files from a URL. If we use the command COPY docker file copies from local source to destination in the docker contain