[undertow-dev] Return HTTP Status 503 (Service Unvailable) until Web Application is available.

[Stuart Douglas]

You can add the default-response-code attribute in the host element of
the undertow subsystem to make it return 503 by default.

Stuart

On Mon, Jan 30, 2017 at 9:34 PM, Thomas Darimont
<thomas.darimont at googlemail.com> wrote:
> Hello group,
>
> (coss-post from keycloak-user Mailing List)
>
> the undertow servlet-container is started pretty early during the startup of
> the
> wildfly application server. However the initialization of the keycloak
> server
> application might take a while to complete. Within this period requests that
> are
> sent to the keycloak endpoints result in responses with HTTP Status Code
> 404.
>
> Is it possible to configure undertow to return a HTTP Status Code 503
> (Service Unvailable)
> until the keycloak application startup has completed?
>
> This would ease configuring load-balancers and to avoid showing a file not
> found
> to users during server restarts.
>
> Cheers,
> Thomas
>
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