Dockerfile vs Docker Image Vs Container
- The following are the major comparisons between with Dockerfile, Docker Image and Docker Containers:
Aspects |
Dockerfile |
Docker Image |
Docker Container |
---|---|---|---|
Definition |
Dockerfile is a text file that contains a set of instructions that is required to build a docker image. |
Docker Image is an excutable software package. |
Docker Container is an running instance of an Container Image. |
Purpoe |
It is helpful for defining and set uping the environment. |
It acts as static snapshot of an application. |
It is useful for creating a runnable isntance of an Image. |
Content |
It contains instructions for building an Docker Image. |
It contains complete snapshot of filesystem. |
It is a running instance of a docker image. |
Life Cycle |
It can be edited and reused |
Docker image is immutable after once it is build |
It temporarily can be stopped or removed. The life of container is the life of the program its runs inside. |
Persistance |
It can be stored in source code repositories |
It can be stored in Docker registry |
It exists only when running. |
How to Create Docker Image?
Docker is a powerful containerization tool that enables developers to package their applications and their dependencies into a single unit called Docker image. The Docker image offers seamless deployment, scalability, and portability. In this article, I will make sure that you understand what is docker and guide you through the steps to create a Docker image.
Table of Content
- What is Docker?
- What is Docker Image?
- Why Create Docker Images?
- How to Create Docker Image With Dockerfile: A Step-By-Step Guide
- How to Create A Base Image Using Scratch? A Step-By-Step Guide
- How to Create a Full Image Using tar?
- How to Optimize Your Docker Image Size?
- How to Host Your Docker Image?
- Examples of Docker Commands for Creating a Dockerfile
- Dockerfile vs Docker Image Vs Container
- Docker Image Commands
- Key Commands of Docker Image And Docker Container
- Examples of Docker Image UseCases
- How To Create A Docker Image On Docker Desktop: A Step-By-Step Guide
- How to Create a Docker Image from Docker Container? A Step-By-Step Guide
- Conclusion
- Create Docker Image – FAQs
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