Istio Sidecar taking more than 4 minutes to load with Spring Boot application


We have a couple of services that use Spring Boot. When we deploy them, the envoy sidecar takes anywhere from 1-4 minutes, sometimes, even more, to load. The services are trying to reach a configuration server and failing because they cannot reach any external sources until the sidecar loads. They run at 1/2 and crash loop until the envoy sidecar loads.

Has anyone run into this issue before?