What Is the Difference between a Docker Image and a Container?
Docker image
A Docker image ****is an immutable (unchangeable) file that contains the source code, libraries, dependencies, tools, and other files needed for an application to run. Sometimes these images are referred to as snapshots due to their read-only quality. These images refer to the state of the application and all of its components and dependencies at a point in time.
Docker container
A Docker container is a virtual runtime environment where applications are isolated from the underlying system. These containers standardize the environment and allow them to be portable. This means you can, for example, share the container with a colleague.
The difference
Both images and containers are closely related entities and are part of the system defined by the Docker platform. Images can exist without a container, whereas containers can not exist without an image to run on. This means that containers are dependent on image and need and image to be able to create an environment.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
-
Solved: Errors in crontab file, can't install
You may encounter this error while creating a new crontab or updating an existing one that has a syntax error.
Questions -
What Is the Difference between Docker-Compose Ports and Expose?
You may have wondered what is the difference between docker-compose ports and docker-compose expose. Here is a clear explanation to help you better understand the matter. Ports Ports mentioned in t...
Questions -
How Do I Pass Environment Variables to Docker Containers?
It is always a good practice to separate the app from its configuration. It is not a good idea to have a database login credential defined as variables in the code of the application. This is why w...
Questions -
Solved: Cron missing newline before EOF
This error may also happen when a crontab file is generated automatically and the generator failed to insert a newline character at the end of the crontab file.
Questions
We are hiring.
Software is our way of making the world a tiny bit better. We build tools for the makers of tomorrow.
Help us in making the internet more reliable.
Help us with developer education and get paid.
