The issue goes like this
I have all my configuration for the project in Consul KV store The configuration includes application.yml, logback.xml and few other configurations needed by my project.
Using bootstrap.yml for Spring Cloud Consul configuration which contains logging.config for with the URI of the configuration URI is as follow for logging.config - http://CONSUL_SERVER_IP:CONSUL_SERVER_PORT/v1/kv/CONSUL_CONFIG_PREFIX/logback.xml?raw
Also tried passing below as argument/VM argument
-Dlogging.config=http://CONSUL_SERVER_IP:CONSUL_SERVER_PORT/v1/kv/CONSUL_CONFIG_PREFIX/logback.xml?raw
Query string 'raw' is needed to get the actual config file.
While executing the application it gives the following error
Caused by: ch.qos.logback.core.LogbackException: Unexpected filename extension of file [http://CONSUL_SERVER_IP:CONSUL_SERVER_PORT/v1/kv/CONSUL_CONFIG_PREFIX/logback.xml?raw]. Should be either .groovy or .xml at ch.qos.logback.classic.util.ContextInitializer.configureByResource(ContextInitializer.java:77) at org.springframework.boot.logging.logback.LogbackLoggingSystem.configureByResourceUrl(LogbackLoggingSystem.java:180) at org.springframework.boot.logging.logback.LogbackLoggingSystem.loadConfiguration(LogbackLoggingSystem.java:149) ... 30 more
Spring boot version - 2.0.1.RELEASE
Spring cloud version - Finchley.SR2
logback classic and core version - 1.2.3
Following solution, worked for me. Just change the URI passed to logging.config in bootstrap.yml or as VM arguments
http://CONSUL_SERVER_IP:CONSUL_SERVER_PORT/v1/kv/CONSUL_CONFIG_PREFIX/logback.xml?raw=true&xml
If you have a similar issue then add &fileExtension to the URI