Docker Quickstart

Docker concepts

build, run, and share

  • Flexible: Even the most complex applications can be containerized.

  • Lightweight: Containers leverage and share the host kernel, making them much more efficient in terms of system resources than virtual machines.

  • Portable: You can build locally, deploy to the cloud, and run anywhere.

  • Loosely coupled: Containers are highly self sufficient and encapsulated, allowing you to replace or upgrade one without disrupting others.

  • Scalable: You can increase and automatically distribute container replicas across a datacenter.

  • Secure: Containers apply aggressive constraints and isolations to processes without any configuration required on the part of the user.

Containers and virtual machines

docker_Container_VM-min

Set up your Docker environment

Test Docker version

docker --version
docker -v

Test Docker installation

  1. docker run hello-world

  2. docker image ls

  3. docker ps --all

References