--- title: What That docker-compose.yml Actually Does | daily.dev description: A brief explainer on what a docker-compose.yml file in a Java repository is actually for. Rather than containerizing the application itself, Docker Compose is... canonical: https://daily.dev/posts/what-that-docker-compose-yml-actually-does-4eqagzdko twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: What That docker-compose.yml Actually Does | daily.dev og:description: A brief explainer on what a docker-compose.yml file in a Java repository is actually for. Rather than containerizing the application itself, Docker Compose is... og:url: https://daily.dev/posts/what-that-docker-compose-yml-actually-does-4eqagzdko og:image: https://api.daily.dev/og/posts/4eqAgZdKO.png og:image:alt: What That docker-compose.yml Actually Does 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. # What That docker-compose.yml Actually Does **[Dan Vega](https://daily.dev/sources/dan-vega)** · 1 min read · 1 upvotes · 0 comments ## Summary A brief explainer on what a docker-compose.yml file in a Java repository is actually for. Rather than containerizing the application itself, Docker Compose is used to spin up all the dependencies and services the app needs, so the project works immediately after cloning. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Introduction to Docker Compose](https://daily.dev/posts/introduction-to-docker-compose-auqwyajlu) · Flavio Copes · 11 upvotes · 0 comments --- Tags: [#java](https://daily.dev/tags/java), [#containers](https://daily.dev/tags/containers), [#docker-compose](https://daily.dev/tags/docker-compose) [View this post on daily.dev](https://daily.dev/posts/what-that-docker-compose-yml-actually-does-4eqagzdko) ```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":"What That docker-compose.yml Actually Does","url":"https://daily.dev/posts/what-that-docker-compose-yml-actually-does-4eqagzdko","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/what-that-docker-compose-yml-actually-does-4eqagzdko"},"datePublished":"2026-07-27T00:32:47.789Z","dateModified":"2026-07-27T00:33:03.981Z","description":"A brief explainer on what a docker-compose.yml file in a Java repository is actually for. 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