Printing to stdout messes up JSON logging

[ilinas]

Before logging is initialized, consul-esm outputs several messages such as "Consul ESM running!" and some info about the config.

consul-esm/main.go

Line 93 in 9095511

ui.Output("Consul ESM running!")

When running in Docker, these messages are being picked up by the logging driver (journald in our case), and included in the logs. We, however, are expecting JSON log by setting log_json = true in the config file, and that causes the log parser to fail.

It would be nice if there was a parameter to disable those messages, or that they would output through the configured logger in the configured format.