Normally you don't want the config server to be a config client itself, so this
listener disables the config client unless
explicitly "true". It has to be "true" at the time this listener is fired, which means
is parsed, which in turn means to you need
to launch the application with an existing primed
(e.g. via System
properties or a
). This is the same rule of precedence
as for anything else affecting the bootstrap process itself, e.g. setting
to something other than "bootstrap".
N.B. a config server can always be an "embedded" config client (using its own config
repository as a property source) if you set
This listener is only to prevent it from using HTTP to contact itself.