spring boot logging using log4j to external file with shared, external log4j configuration -

i have spring boot application. pulls log4j.properties external location in file system; specify file's location in application.yml file:

... logging:   config: ${log_config_location}/log4j.properties ... 

since log4j.properties file shared other applications, in it, cannot use

... log4j.appender.fileappender.file=log_file_name.log ... 

because ... applications log same file (probably wouldn't work b/c of io)

what want do, leverage application's name specified in application.yml file:

... spring:   application:     name: my_foo_application ... 

and set log file name , location to

${log_files_location}/services/${spring.application.name}/${spring.application.name}.log 

i tried inside application.yml file:

spring:   application:     name: my_foo_application  logging:   config: ${log_config_location}/log4j.properties   file: ${log_files_location}/services/${spring.application.name}/${spring.application.name}.log 

this had no effect - not see log file in location i'm expecting.

i commented out 'logging.file....' in application.yml & added log4j.properties file:

log4j.appender.fileappender.file=${log_files_location}/services/${spring.application.name}/${spring.application.name}.log 

it (not surprisingly) had no effect

how can accomplished?

try adding following line.

log4j.appender.fileappener=org.apache.log4j.rollingfileappender