`; return; } const search = await pagefind.debouncedSearch(query); if (search === null) { return; } else { const resultsLength = search.results.length const resultsData = await Promise.all(search.results.slice(0, 5).map(r => r.data())); const results = resultsData.map((item, index) => ({...item, index: index + 1})); if (query) { searchBarResults.classList.remove("hidden"); } else { searchBarResults.classList.add("hidden"); } let resultsHTML = `
${resultsLength} results
`; 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); } }); } });

Customize log driver output

The tag log option specifies how to format a tag that identifies the container's log messages. By default, the system uses the first 12 characters of the container ID. To override this behavior, specify a tag option:

$ docker run --log-driver=fluentd --log-opt fluentd-address=myhost.local:24224 --log-opt tag="mailer"

Docker supports some special template markup you can use when specifying a tag's value:

MarkupDescription
{{.ID}}The first 12 characters of the container ID.
{{.FullID}}The full container ID.
{{.Name}}The container name.
{{.ImageID}}The first 12 characters of the container's image ID.
{{.ImageFullID}}The container's full image ID.
{{.ImageName}}The name of the image used by the container.
{{.DaemonName}}The name of the Docker program (docker).

For example, specifying a --log-opt tag="{{.ImageName}}/{{.Name}}/{{.ID}}" value yields syslog log lines like:

Aug  7 18:33:19 HOSTNAME hello-world/foobar/5790672ab6a0[9103]: Hello from Docker.

At startup time, the system sets the container_name field and {{.Name}} in the tags. If you use docker rename to rename a container, the new name isn't reflected in the log messages. Instead, these messages continue to use the original container name.