Java - How to Configure Log4j2 Properties File?

Console Logging

log4j2.properties
# Extra logging related to initialization of Log4j
# Set to debug or trace if log4j initialization is failing
status = warn
# Name of the configuration
name = ConsoleLogConfig

# Console appender configuration
appender.console.type = Console
appender.console.name = consoleLogger
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %m%n

# Root logger level
rootLogger.level = debug
# Root logger referring to console appender
rootLogger.appenderRef.stdout.ref = consoleLogger

Rolling Files

status = warn
name= RollingFileLogConfig

# Log files location
property.basePath = /home/johnny/logs

# RollingFileAppender name, pattern, path and rollover policy
appender.rolling.type = RollingFile
appender.rolling.name = fileLogger
appender.rolling.fileName = ${basePath}/app.log
appender.rolling.filePattern = ${basePath}/app-%d{yyyy-MM-dd_HH-mm-ss.SSS}-%i.log.gz
appender.rolling.layout.type = PatternLayout
appender.rolling.layout.pattern = %m%n
appender.rolling.policies.type = Policies

# RollingFileAppender rotation policy
appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.rolling.policies.size.size = 10MB

# Because rolling filePattern is app-%d{yyyy-MM-dd_HH-mm-ss.SSS}-%i.log.gz, the minimum time unit is second.
# The 1 is meaning that creating rolling file/second.
# appender.rolling.policies.time.type = TimeBasedTriggeringPolicy
# appender.rolling.policies.time.interval = 1
# appender.rolling.policies.time.modulate = true

appender.rolling.strategy.type = DefaultRolloverStrategy
appender.rolling.strategy.delete.type = Delete
appender.rolling.strategy.delete.basePath = ${basePath}
appender.rolling.strategy.delete.maxDepth = 10
appender.rolling.strategy.delete.ifLastModified.type = IfLastModified

# Delete all files older than 30 days
appender.rolling.strategy.delete.ifLastModified.age = 30d

# Configure root logger
rootLogger.level = debug
rootLogger.appenderRef.rolling.ref = fileLogger

Reference