In a Thorntail project, the logging configuration for CONSOLE works as expected:
thorntail:
logging:
pattern-formatters:
LOG_FORMATTER:
pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %p [%c] (%t) %s%e%n"
console-handlers:
CONSOLE:
named-formatter: LOG_FORMATTER
target: console
root-logger:
handlers:
- CONSOLE
In a Docker environment I need to output the logs using System.out. According to the documentation, the target key has three possible values:
thorntail.logging.console-handlers.KEY.target
Defines the target of the console handler. The value can be System.out, System.err or console.
I did change my target to System.out as follows:
thorntail:
logging:
pattern-formatters:
LOG_FORMATTER:
pattern: "%d{yyyy-MM-dd HH:mm:ss,SSS} %p [%c] (%t) %s%e%n"
console-handlers:
CONSOLE:
named-formatter: LOG_FORMATTER
target: System.out
root-logger:
handlers:
- CONSOLE
And then I get this exception where one of the possible values is the one I configured...
java.lang.IllegalArgumentException: Invalid value 'System.out'; should be one of: console,System.out,System.err
What am I doing wrong?
I'm not sure where's the problem, but System.out
is the default value per https://github.com/wildfly/wildfly-core/blob/7.0.0.Final/logging/src/main/java/org/jboss/as/logging/handlers/ConsoleHandlerResourceDefinition.java#L51, so you can just leave the target
out completely.