--- title: Introduction to Docker | daily.dev description: Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Dockerfile builds a docker image and that image... canonical: https://daily.dev/posts/introduction-to-docker-9-ujb5370 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Introduction to Docker | daily.dev og:description: Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Dockerfile builds a docker image and that image... og:url: https://daily.dev/posts/introduction-to-docker-9-ujb5370 og:image: https://api.daily.dev/og/posts/9-ujb5370.png og:image:alt: Introduction to 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. # Introduction to Docker **[Hashnode](https://daily.dev/sources/hashnode)** · 3 min read · 26 upvotes · 0 comments ## Summary Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Dockerfile builds a docker image and that image contains all the project's code. You can run that image to create as many docker containers as you want. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments --- Tags: [#testing](https://daily.dev/tags/testing), [#containers](https://daily.dev/tags/containers), [#docker](https://daily.dev/tags/docker) [View this post on daily.dev](https://daily.dev/posts/introduction-to-docker-9-ujb5370) ```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":"Introduction to Docker","url":"https://daily.dev/posts/introduction-to-docker-9-ujb5370","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/introduction-to-docker-9-ujb5370"},"datePublished":"2022-08-04T06:13:17.235Z","dateModified":"2022-08-04T06:13:16.543Z","description":"Docker is a tool designed to make it easier to create, deploy, and run applications by using containers. Dockerfile builds a docker image and that image...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/af642d6ac3a7a42d8e2fa3f19764ed65","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/af642d6ac3a7a42d8e2fa3f19764ed65","isAccessibleForFree":true,"articleSection":"Hashnode","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hashnode","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/4a287b2e7cb5499bae863f8e7137cdb4","url":"https://daily.dev/sources/hashnode"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/introduction-to-docker-9-ujb5370","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":26},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"testing,containers,docker","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hashnode","item":"https://daily.dev/sources/hashnode"},{"@type":"ListItem","position":3,"name":"Introduction to Docker"}]} ```