The kubectl tool supports JSONPath templates as an output format. A JSONPath template is composed of JSONPath expressions enclosed by curly braces: { and }. Kubectl uses JSONPath expressions to filter on specific fields in the JSON object and format the output. In addition to the original JSONPath template syntax, the following functions and syntax are valid: Use double quotes to quote text inside JSONPath expressions. Use the range, end operators to iterate lists.

Production-Grade Container Orchestration

Resource Types KubeProxyConfiguration FormatOptions Appears in: LoggingConfiguration FormatOptions contains options for the different logging formats. FieldDescription text [Required] TextOptions [Alpha] Text contains options for logging format "text". Only available when the LoggingAlphaOptions feature gate is enabled. json [Required] JSONOptions [Alpha] JSON contains options for logging format "json". Only available when the LoggingAlphaOptions feature gate is enabled. JSONOptions Appears in: FormatOptions JSONOptions contains options for logging format "json". FieldDescription OutputRoutingOptions [Required] OutputRoutingOptions (Members of OutputRoutingOptions are embedded into this type.

Production-Grade Container Orchestration

Synopsis The Kubernetes network proxy runs on each node. This reflects services as defined in the Kubernetes API on each node and can do simple TCP, UDP, and SCTP stream forwarding or round robin TCP, UDP, and SCTP forwarding across a set of backends. Service cluster IPs and ports are currently found through Docker-links-compatible environment variables specifying ports opened by the service proxy. There is an optional addon that provides cluster DNS for these cluster IPs.

Note:Code developers: If you are documenting a new feature for an upcoming Kubernetes release, see Document a new feature. To contribute new content pages or improve existing content pages, open a pull request (PR). Make sure you follow all the requirements in the Before you begin section. If your change is small, or you're unfamiliar with git, read Changes using GitHub to learn how to edit a page. If your changes are large, read Work from a local fork to learn how to make changes locally on your computer.

This page contains list of feature gates that have been removed. The information on this page is for reference. A removed feature gate is different from a GA'ed or deprecated one in that a removed one is no longer recognized as a valid feature gate. However, a GA'ed or a deprecated feature gate is still recognized by the corresponding Kubernetes components although they are unable to cause any behavior differences in a cluster.

Production-Grade Container Orchestration

Production-Grade Container Orchestration

KYAML is a safer and less ambiguous subset of YAML, initially introduced in Kubernetes v1.34 (alpha) and enabled by default in v1.35 (beta). Designed specifically for Kubernetes, KYAML addresses common YAML pitfalls such as whitespace sensitivity and implicit type coercion while maintaining full compatibility with existing YAML parsers and tooling. This reference describes KYAML syntax. Getting started with KYAML YAML’s reliance on indentation and implicit type coercion often leads to configuration errors, especially in CI/CD pipelines and templating systems like Helm.