Connect Timeout Exception on Url - http://localhost:8888 & Could not locate PropertySource: I/O error on GET request - kubernetes

Question

When the Spring Cloud Dataflow Http-Source app Pod starts on kubernetes notice following two messages in console.
Connect Timeout Exception on Url - http://localhost:8888.
Could not locate PropertySource: I/O error on GET request for "http://localhost:8888/http-source/default": Connection refused (Connection refused); nested exception is java.net.ConnectException
How to get this resolved?
subscriber to the 'errorChannel' channel
2019-09-15 05:17:26.773 INFO 1 --- [ main] o.s.i.channel.PublishSubscribeChannel : Channel 'application-1.errorChannel' has 1 subscriber(s).
2019-09-15 05:17:26.774 INFO 1 --- [ main] o.s.i.endpoint.EventDrivenConsumer : started _org.springframework.integration.errorLogger
2019-09-15 05:17:27.065 INFO 1 --- [ main] c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at : http://localhost:8888
2019-09-15 05:17:27.137 INFO 1 --- [ main] c.c.c.ConfigServicePropertySourceLocator : Connect Timeout Exception on Url - http://localhost:8888. Will be trying the next url if available
2019-09-15 05:17:27.141 WARN 1 --- [ main] c.c.c.ConfigServicePropertySourceLocator : Could not locate PropertySource: I/O error on GET request for "http://localhost:8888/http-source/default": Connection refused (Connection refused); nested exception is java.net.ConnectException: Connection refused (Connection refused)

Answer 1

If you look carefully, the following message will be logged as a WARN in the logs.
Connect Timeout Exception on Url - http://localhost:8888.
Could not locate PropertySource: I/O error on GET request for "http://localhost:8888/http-source/default": Connection refused (Connection refused); nested exception is java.net.ConnectException
You'd see this WARN message for all the apps that we ship, SCDF, and Skipper servers that runs on K8s. This means that the apps, SCDF or Skipper don't have a config-server configured, so it defaults to the default http://localhost:8888.
Background: we provide the config-server dependency in all the apps that we ship to help you get started with it quickly.
If you don't use the config-server, that's fine; it will not cause any harm - nothing to worry, however.