Limited Time Offer! For Less Than the Cost of a Starbucks Coffee, Access All DevOpsSchool Videos on YouTube Unlimitedly. Master DevOps, SRE, DevSecOps Skills! Enroll Now What is Docker? Docker is a OS virtualization tool, that allows us to build and deploy applications as containers. Shares resources with underlying OS kernel What is Container? Container is an instance of image that’s having all the tools and libraries that’ll help the software to run. Benefit of Docker? Consistent, cost effective, easy