--- title: A Crash Course in Docker | daily.dev description: Docker is a container platform that simplifies deployment of applications in the cloud. It was created in 2013 and uses lightweight containerization to achieve... canonical: https://daily.dev/posts/a-crash-course-in-docker-jrqrx8ye8 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A Crash Course in Docker | daily.dev og:description: Docker is a container platform that simplifies deployment of applications in the cloud. It was created in 2013 and uses lightweight containerization to achieve... og:url: https://daily.dev/posts/a-crash-course-in-docker-jrqrx8ye8 og:image: https://api.daily.dev/og/posts/jRqRX8Ye8.png og:image:alt: A Crash Course in Docker og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A Crash Course in Docker **[ByteByteGo](https://daily.dev/sources/bytebytego)** · 4 min read · 102 upvotes · 2 comments ## Summary Docker is a container platform that simplifies deployment of applications in the cloud. It was created in 2013 and uses lightweight containerization to achieve isolation. Docker images are different from virtual machines as they share the host operating system kernel, making them more lightweight and portable. Kubernetes is not necessary to use Docker effectively. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@raithlin** · 3 upvotes > It was an interesting post until I hit the "sign in for a 7 day trial" bit. --- Tags: [#cloud](https://daily.dev/tags/cloud), [#linux](https://daily.dev/tags/linux), [#devops](https://daily.dev/tags/devops), [#docker](https://daily.dev/tags/docker), [#containers](https://daily.dev/tags/containers) [View this post on daily.dev](https://daily.dev/posts/a-crash-course-in-docker-jrqrx8ye8) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A Crash Course in Docker","url":"https://daily.dev/posts/a-crash-course-in-docker-jrqrx8ye8","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-crash-course-in-docker-jrqrx8ye8"},"datePublished":"2023-11-09T16:37:49.677Z","dateModified":"2023-11-09T16:37:39.802Z","description":"Docker is a container platform that simplifies deployment of applications in the cloud. 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