Follow Formatting Standards

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This page shows the formatting standards for the Istio documentation. Istio uses Markdown to markup the content and Hugo to build the website. To ensure consistency across our documentation, we have agreed on these formatting standards.

Don’t use capitalization for emphasis

Only use the original capitalization found in the code or configuration files when referencing those values directly. Use back-ticks `` around the referenced value to make the connection explicit. For example, use IstioRoleBinding, not Istio Role Binding or istio role binding.

If you are not referencing values or code directly, use normal sentence capitalization, for example, “The Istio role binding configuration takes place in a YAML file.”

Use angle brackets for placeholders

Use angle brackets for placeholders in commands or code samples. Tell the reader what the placeholder represents. For example:


1. Display information about a pod:

    {{< text bash >}}
    $ kubectl describe pod <pod-name>
    {{< /text >}}

    Where `<pod-name>` is the name of one of your pods.

Use bold to emphasize user interface elements

Do	Don’t
Click Fork.	Click “Fork”.
Select Other.	Select ‘Other’.

Use italics to emphasize new terms

Do	Don’t
A cluster is a set of nodes &mldr;	A “cluster” is a set of nodes &mldr;
These components form the control plane.	These components form the control plane.

Use the gloss shortcode and add glossary entries for new terms.

Use `back-ticks` around file names, directories, and paths

Do	Don’t
Open the `foo.yaml` file.	Open the foo.yaml file.
Go to the `/content/en/docs/tasks` directory.	Go to the /content/en/docs/tasks directory.
Open the `/data/args.yaml` file.	Open the /data/args.yaml file.

Use `back-ticks` around inline code and commands

Do	Don’t
The `foo run` command creates a `Deployment`.	The “foo run” command creates a `Deployment`.
For declarative management, use `foo apply`.	For declarative management, use “foo apply”.

Use code-blocks for commands you intend readers to execute. Only use inline code and commands to mention specific labels, flags, values, functions, objects, variables, modules, or commands.

Use `back-ticks` around object field names

Do	Don’t
Set the value of the `ports` field in the configuration file.	Set the value of the “ports” field in the configuration file.
The value of the `rule` field is a `Rule` object.	The value of the “rule” field is a `Rule` object.