256 lines
8.6 KiB
Markdown
256 lines
8.6 KiB
Markdown
# InfluxDB v2.0 Documentation
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This is the repository represents the InfluxDB v2.x documentation that will be
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accessible at [docs.influxdata.com](https://docs.influxdata.com).
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## Run the docs locally
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### Install Hugo
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Hugo is the static site generator used to build the InfluxData documentation.
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[Download and install Hugo](https://gohugo.io/getting-started/installing/) to run the docs locally.
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### Install NodeJS & Asset Pipeline Tools
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This project uses tools built in NodeJS to build and process stylesheets and javascript.
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In order for the asset pipeline to work, [install NodeJS](https://nodejs.org/en/download/)
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and run the following to install the necessary tools:
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```sh
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npm i -g postcss-cli autoprefixer
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```
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### Fork and clone the docs repository
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[Fork this repository](https://help.github.com/articles/fork-a-repo/) and [clone it](https://help.github.com/articles/cloning-a-repository/) to your local machine.
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### Start the hugo server
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Hugo provides a local development server that generates the HTML pages and serves them
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at `localhost:1313`.
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Start the hugo server with:
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```bash
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hugo server
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```
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View the docs at [localhost:1313](http://localhost:1313).
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## Contributing
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See our [Contribution guidelines](blob/master/CONTRIBUTING.md) for information
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about contributing to the InfluxData documentation.
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## Style & Formatting
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### Markdown
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All of our documentation is written in [Markdown](https://en.wikipedia.org/wiki/Markdown).
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### Semantic Linefeeds
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Use [semantic linefeeds](http://rhodesmill.org/brandon/2012/one-sentence-per-line/).
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Separating each sentence with a new line makes it easy to parse diffs with the human eye.
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**Diff without semantic linefeeds:**
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``` diff
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-Data are taking off. Those data are time series. You need a database that specializes in time series. You should check out InfluxDB.
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+Data are taking off. Those data are time series. You need a database that specializes in time series. You need InfluxDB.
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```
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**Diff with semantic linefeeds:**
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``` diff
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Data are taking off.
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Those data are time series.
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You need a database that specializes in time series.
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-You should check out InfluxDB.
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+You need InfluxDB.
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```
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### Page frontmatter
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Every documentation page includes frontmatter which specifies information about the page.
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Frontmatter populates variables in page templates and the site's navigation menu.
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```yaml
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title: # Title of the page used in the the page's h1
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seotitle: # Page title used in the html <head> title and used in search engine results
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description: # Page description displayed in search engine results
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menu:
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v2_0:
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name: # Article name that only appears in the left nav
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parent: # Specifies a parent group and nests navigation items
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weight: # Determines sort order.
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draft: # If true, will not render page on build
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enterprise_all: # If true, specifies the doc as a whole is specific to InfluxDB Enterprise
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enterprise_some: # If true, specifies the doc includes some content specific to InfluxDB Enterprise
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```
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#### Title usage
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##### `title`
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The `title` frontmatter populates each page's h1 header.
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It shouldn't be overly long, but should set the context for users coming from outside sources.
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##### `seotitle`
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The `seotitle` frontmatter populates each page's HTML `title` attribute.
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Search engines use this in search results (not the page's h1) and therefore it should be keyword optimized.
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##### `menu > name`
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The `name` attribute under the `menu` frontmatter determines the text used in each page's link in the site navigation.
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It should be short and assume the context of its parent if it has one.
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### Article headings
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Use only h2-h6 headings in markdown content.
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h1 headings act as the page title and are populated automatically from the `title` frontmatter.
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h2-h6 headings act as section headings.
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### Notes and warnings
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Shortcodes are available for formatting notes and warnings in each article:
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```md
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{{% note %}}
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Insert note markdown content here.
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{{% /note %}}
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{{% warn %}}
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Insert warning markdown content here.
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{{% /warn %}}
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```
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### Enterprise Content
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Many articles are unique to InfluxDB enterprise or at least contain some information specific to InfluxDB Enterprise.
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There are frontmatter and an enterprise shortcode that help to properly identify this content.
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#### All content is Enterprise-specific
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If all content in an article is Enterprise-specific, set the `enterprise_all` frontmatter to `true`.
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```yaml
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enterprise_all: true
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```
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This will display a message at the top of page indicating that the things discussed are unique to InfluxDB Enterprise.
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#### Only some content is Enterprise-specific
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If only some content in the article is enterprise specific, set the `enterprise_some` frontmatter to `true`.
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```yaml
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enterprise_some: true
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```
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This will display a message at the top of page indicating some things are unique to InfluxDB Enterprise.
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To format Enterprise-specific content, wrap it in the `{{% enterprise %}}` shortcode:
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```md
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{{% enterprise %}}
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Insert enterprise-specific markdown content here.
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{{% /enterprise %}}
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```
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### Tabbed Content
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Shortcodes are available for creating "tabbed" content (content that is changed by a users' selection).
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Ther following three must be used:
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`{{< tabs-wrapper >}}`
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This shortcode creates a wrapper or container for the tabbed content.
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All UI interactions are limited to the scope of each container.
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If you have more than one "group" of tabbed content in a page, each needs its own `tabs-wrapper`.
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This shortcode must be closed with `{{< /tabs-wrapper >}}`.
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**Note**: The `<` and `>` characters used in this shortcode indicate that the contents should be processed as HTML.
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`{{% tabs %}}`
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This shortcode creates a container for buttons that control the display of tabbed content.
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It should contain simple markdown links with anonymous anchors (`#`).
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The link text is used as the button text.
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This shortcode must be closed with `{{% /tabs %}}`.
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**Note**: The `%` characters used in this shortcode indicate that the contents should be processed as Markdown.
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`{{% tab-content %}}`
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This shortcode creates a container for a content block.
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Each content block in the tab group needs to be wrapped in this shortcode.
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**The number of `tab-content` blocks must match the number of links provided in the `tabs` shortcode**
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This shortcode must be closed with `{{% /tab-content %}}`.
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**Note**: The `%` characters used in this shortcode indicate that the contents should be processed as Markdown.
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#### Example tabbed content group
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```md
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{{< tabs-wrapper >}}
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{{% tabs %}}
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[Button text for tab 1](#)
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[Button text for tab 2](#)
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{{% /tabs %}}
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{{% tab-content %}}
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Markdown content for tab 1.
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{{% /tab-content %}}
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{{% tab-content %}}
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Markdown content for tab 2.
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{{% /tab-content %}}
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{{< /tabs-wrapper >}}
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```
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#### Tabbed code blocks
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Shortcodes are also available for tabbed code blocks primarily used to give users
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the option to choose between different languages and syntax.
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The shortcode structure is the same as above, but the shortcode names are different:
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`{{< code-tabs-wrapper >}}`
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`{{% code-tabs %}}`
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`{{% code-tab-content %}}`
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~~~md
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{{< code-tabs-wrapper >}}
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{{% code-tabs %}}
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[Flux](#)
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[InfluxQL](#)
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{{% /code-tabs %}}
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{{% code-tab-content %}}
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```js
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data = from(bucket: "telegraf/autogen")
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|> range(start: -15m)
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|> filter(fn: (r) =>
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r._measurement == "mem" AND
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r._field == "used_percent"
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)
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```
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{{% /code-tab-content %}}
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{{% code-tab-content %}}
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```sql
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SELECT "used_percent"
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FROM "telegraf"."autogen"."mem"
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WHERE time > now() - 15m
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```
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{{% /code-tab-content %}}
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{{< /code-tabs-wrapper >}}
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~~~
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### High-resolution images
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In many cases, screenshots included in the docs are taken from high-resolution (retina) screens.
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Because of this, the actual pixel dimension is 2x larger than it needs to be and is rendered 2x bigger than it should be.
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The following shortcode automatically sets a fixed width on the image using half of its actual pixel dimension.
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This preserves the detail of the image and renders it at a size where there should be little to no "blur"
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cause by browser image resizing.
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```html
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{{< img-hd src="/path/to/image" alt="Alternate title" />}}
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```
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###### Notes
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- This should only be used on screenshots takes from high-resolution screens.
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- The `src` should be relative to the `static` directory.
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- Image widths are limited to the width of the article content container and will scale accordingly,
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even with the `width` explicitly set.
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### Truncated content blocks
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In some cases, it may be appropriate to shorten or truncate blocks of content.
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Use cases include long examples of output data or tall images.
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The following shortcode truncates blocks of content and allows users to opt into
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to seeing the full content block.
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```md
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{{% truncate %}}
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Truncated markdown content here.
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{{% /truncate %}}
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