ingress-nginx-helm/docs/user-guide/default-backend.md

# Default backend

The default backend is a service which handles all URL paths and hosts the Ingress-NGINX controller doesn't understand
(i.e., all the requests that are not mapped with an Ingress).

Basically a default backend exposes two URLs:

- `/healthz` that returns 200
- `/` that returns 404

!!! example
    The sub-directory [`/images/custom-error-pages`](https://github.com/kubernetes/ingress-nginx/tree/main/images/custom-error-pages)
    provides an additional service for the purpose of customizing the error pages served via the default backend.
Clean up annotations.md; extract default backend from miscellaneous 2018-05-03 09:46:39 +00:00			`# Default backend`

Minor documentation cleanup (#7826) * clarify link * Add section headers * console blocks * grpc example json was not valid * multi-tls update text The preceding point 1 related to https://github.com/kubernetes-retired/contrib/blob/4f2cb51ef82b4dddb625f6053ad132c1faf07aa1/ingress/controllers/nginx/examples/ingress.yaml and the deployments referenced in https://github.com/kubernetes-retired/contrib/blob/4f2cb51ef82b4dddb625f6053ad132c1faf07aa1/ingress/controllers/nginx/examples/README.md They are not relevant to the current instructions. * add whitespace around parens * grammar setup would be a proper noun, but it is not the intended concept, which is a state * grammar * is-only * via * Use bullets for choices * ingress-controller nginx is a distinct brand. generally this repo talks about ingress-controller, although it is quite inconsistent about how... * drop stray paren * OAuth is a brand and needs an article here also GitHub is a brand * Indent text under numbered lists * use e.g. * Document that customer header config maps changes do not trigger updates This should be removed if https://github.com/kubernetes/ingress-nginx/issues/5238 is fixed. * article * period * infinitive verb + period * clarify that the gRPC server is responsible for listening for TCP traffic and not some other part of the backend application * avoid using ; and reword * whitespace * brand: gRPC * only-does is the right form `for` adds nothing here * spelling: GitHub * punctuation `;` is generally not the right punctuation... * drop stray `to` * sentence * backticks * fix link * Improve readability of compare/vs * Renumber list * punctuation * Favor Ingress-NGINX and Ingress NGINX * Simplify custom header restart text * Undo typo damage Co-authored-by: Josh Soref <jsoref@users.noreply.github.com> 2022-01-17 00:57:28 +00:00			`The default backend is a service which handles all URL paths and hosts the Ingress-NGINX controller doesn't understand`
Clean up annotations.md; extract default backend from miscellaneous 2018-05-03 09:46:39 +00:00			`(i.e., all the requests that are not mapped with an Ingress).`

			`Basically a default backend exposes two URLs:`

			- `/healthz` that returns 200
			- `/` that returns 404

			`!!! example`
Change all master reference to main (#7369) 2021-08-07 00:07:29 +00:00			The sub-directory [`/images/custom-error-pages`](https://github.com/kubernetes/ingress-nginx/tree/main/images/custom-error-pages)
Clean up annotations.md; extract default backend from miscellaneous 2018-05-03 09:46:39 +00:00			`provides an additional service for the purpose of customizing the error pages served via the default backend.`