`; resultsHTML += results .map((item) => { return `
${item.meta.title}

…${item.excerpt}…

`; }) .join(""); if (resultsLength > 5) { resultsHTML += `
Show all results
`; } searchBarResults.innerHTML = resultsHTML; } } searchBarInput.addEventListener("input", search); if (window.heap !== undefined) { searchBarResults.addEventListener('click', function (event) { if (event.target.tagName === 'A' && event.target.closest('.link')) { const searchQuery = event.target.getAttribute('data-query'); const resultIndex = event.target.getAttribute('data-index'); const url = new URL(event.target.href); const properties = { docs_search_target_path: url.pathname, docs_search_target_title: event.target.textContent, docs_search_query_text: searchQuery, docs_search_target_index: resultIndex, docs_search_source_path: window.location.pathname, docs_search_source_title: document.title, }; heap.track("Docs - Search - Click - Result Link", properties); } }); } });

Compose file reference

New to Docker Compose?

Find more information about the key features and use cases of Docker Compose or try the quickstart guide.

The Compose Specification is the latest and recommended version of the Compose file format. It helps you define a Compose file which is used to configure your Docker application’s services, networks, volumes, and more.

Legacy versions 2.x and 3.x of the Compose file format were merged into the Compose Specification. It is implemented in versions 1.27.0 and above (also known as Compose V2) of the Docker Compose CLI.

The Compose Specification on Docker Docs is the Docker Compose implementation. If you wish to implement your own version of the Compose Specification, see the Compose Specification repository.

Use the following links to navigate key sections of the Compose Specification.

Version and name top-level element
Understand version and name attributes for Compose.
Services top-level element
Explore all services attributes for Compose.
Networks top-level element
Find all networks attributes for Compose.
Volumes top-level element
Explore all volumes attributes for Compose.
Configs top-level element
Find out about configs in Compose.
Secrets top-level element
Learn about secrets in Compose.