Docker is Open Source software. It provides the automation of
Linux application deployment in a software container.
We can do operating system level virtualization on Linux with
Docker.
Docker can package software in a complete file system that contains
software code, runtime environment, system tools, & libraries that
are required to install and run the software on a server.
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Docker is a set of platform as a service products that use OS-level
virtualization to deliver software in packages called containers.
Containers are isolated from one another and bundle their own software,
libraries and configuration files; they can communicate with each other
through well-defined channels.
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Docker is the best tool you can use if you want to develope one single
application that can run and work uniformly at any environment, laptop
or public cloud instance thanks to its convergent virtualized packages
called containers!!
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When you hear the word container, you may associate it with Docker. Docker is a popular container runtime that simplifies the management of the entire operating system stack needed for container isolation, including networking and storage. Docker makes it easy to create, package, deploy, and run containers.
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A Docker image is a snapshot in time of what a project contains.
It is represented by a Dockerfile and is literally a list of
instructions that must be built. A Docker container is a running
instance of an image.
Docker is a software platform that allows you to build, test, and deploy applications quickly.
Docker is highly reliable
Docker is highly scalable
Docker package software is standardized into units called containers
Containers allow you to easily package an application code, configurations, and dependencies into easy-to-use building blocks that deliver environmental consistency operational efficiency, developer productivity, and version control.
You can create Amazon ECS clusters within a new or existing VPC. After a cluster is up and running, you can define task definitions and services that specify which Docker container images to run across your clusters. Container images are stored in and pulled from container registries, which may exist within or outside of your AWS infrastructure.
The following diagram shows the architecture of an Amazon ECS environment using the Fargate launch type:
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Docker is a containerization platform that you can use to package your applications and their dependencies together in the form of a container.
This will help ensure that your application works smoothly in any environment.
Read more: https://javarevisited.blogspot.com/2022/05/docker-interview-questions-answers-for.html#ixzz7oQc5NOiq