You can use the CLI to manage your web contexts. For example, the enable-context command can be used to tell Apache that a particular web context is able to receive requests, as follows:
[standalone@localhost:9990 subsystem=modcluster] :enable-context(context=/app, virtualhost=default-host) {"outcome" => "success"}
The corresponding disable-context command can be used to prevent Apache from sending new requests:
[standalone@localhost:9990 subsystem=modcluster] :disable-context(context=/app, virtualhost=default-host) {"outcome" => "success"}
To stop Apache from sending requests from a web context, you can use the stop-context command, as follows:
[standalone@localhost:9990 subsystem=modcluster] :stop-context(context=/app, virtualhost=default-host, waittime=50) {"outcome" => "success"}