add selfResourceRev to specified rev in servicefence

[MouceL]

In some scenarios, it is necessary to add istio.io/rev to resources which is generated by slime itself

NOTE:

Resources related to the slime module.

• Resources generated by slime itself: servicefence

• Resources handled by slime: smarlimiter/envoyplugin/pluginmanager/rvs/envoyfilter

So, we add selfResourceRev in global config, when this parameter is set, the resources created by slime itself will add the labels istio.io/rev: {{ .selfResourceRev }}

message Global {
  // ignore ...

  // if SelfResourceRev is specified, the value of SelfResourceRev will be patched to resources which generated by slime itself, just like serviceFence
  // smartlimiter/envoyplugin/pluginmanager is excluded because these envoyfilter are generated by users or higher-level services
  // envoyfilter/sidecar is excluded because these resources generated base on their owner resources
  string selfResourceRev = 13;
}

usage: slimeboot =>

global:
  selfResourceRev: rev-12