Raunak Jain has Published 52 Answers

What is the difference between the 'COPY' and 'ADD' commands in a Dockerfile?

Raunak Jain

Raunak Jain

Updated on 07-Aug-2021 06:03:32

When you create a Dockerfile, you can use two different commands to build your context. Building a context means including the files and directories that you want from your local machine, to be in your container when it’s created. These files may be directories in your local machine, a URL ... Read More

What is the difference between CMD and ENTRYPOINT in a Dockerfile?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:37:11

We can build Docker images by specifying instructions inside a Dockerfile. Dockerfile allows us to specify step-by-step instructions which define the rules for making a container environment. The Docker containers are created for specific tasks and processes to be run inside them. There are three important instructions that are used ... Read More

Vagrant vs Docker for creating an isolated environment

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:32:26

Vagrant is a software that allows you to create a virtual machine that replicates the user's experience exactly as they want to set it up. Specifically, Vagrant allows you to test your application in a specific environment by mirroring the OS and all appropriate configurations.Whereas Docker is a framework that ... Read More

Running a Docker image as a container

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:29:16

Docker allows you to create containerized, packaged, and isolated environments called Docker containers using Docker images. Inside these Docker containers, you can build, test, and even deploy your applications. This allows you to easily share your application run-time environment with other developers. All of this is possible because of a ... Read More

How to remove old Docker containers?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:20:46

Docker allows you to remove old and stale containers that are of no use to you. You can use the Docker rm or Docker container rm commands to do so. However, before you start removing your containers, you need to make sure that none of your containers are actively running. ... Read More

How to list images in Docker?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:18:02

Docker provides a plethora of useful Docker commands that will help you to create, manipulate, and manage Docker objects such as volumes, images, containers, networks, etc. If you have been working with Docker for a long time now, you might have several Docker images already in your machine. Keeping track ... Read More

How to list containers in Docker?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:14:36

Managing multiple Docker containers in a single host machine through a single command line can become tough. Hence, it’s better to know the Docker commands to manage containers the best possible way. Docker provides us with many command line tools and utilities to manage containers. In this article, we will ... Read More

How to get a Docker container's IP address from the host?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:10:52

If you are working with Docker for a long time now, you might already have lots of containers running in your host machine. At times, it becomes really difficult to keep track of all these containers. Moreover, if you are on a network or using compose, there might be several ... Read More

How to force a clean build of a Docker Image?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 12:05:55

When you execute the Docker pull command or Docker run command, the daemon first checks for a similar image in the local machine by comparing the digests of the image.If it finds a match, then it’s not required to search the registry for the image and the daemon can simply ... Read More

How to edit a file after I shell to a Docker container?

Raunak Jain

Raunak Jain

Updated on 06-Aug-2021 11:58:21

While creating Docker images, you specify the build context for the image. The Image build context contains all the files that you want to be included inside the container that you will be from that image. This includes the source code of your application, Dockerfile, other system files, etc. Once ... Read More

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