Logging configuration

Logback config is stored in the application.properties file, along with other springboot properties
The syntax is very simple but your control is very limited
server.port=5000
# Database connection
spring.datasource.url=${TREECREATE_JDBC_URL}
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
# Session
spring.session.store-type=jdbc
spring.session.jdbc.initialize-schema=always
# How long does a session last without activity, in seconds
spring.session.timeout=900
# Logging with a roll over every day
logging.file.name=logs/treecreate.log
logging.pattern.rolling-file-name=logs/treecreate-%d{yyyy-MM-dd}.%i.log.gz
logging.file.max-size=100MB
logging.file.total-size-cap=2GB
logging.file.max-history=60


LOG4j2 config in a log4j2.properties file
Offers far more control but is a bit harder to configure
# basic properties
name=LoggerProperties
property.filename = logs
appenders = console, discord, rolling

# Console output
appender.console.type = Console
appender.console.name = Console
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n

# Rolling File output. Rollover occurs on every 7th day ()
appender.rolling.type = RollingFile
appender.rolling.name = RollingFile
appender.rolling.fileName = ${filename}/program.log
appender.rolling.filePattern = ${filename}/%d{yyyy-MM-dd}.log.gz
appender.rolling.layout.type = PatternLayout
appender.rolling.layout.pattern = [%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n
appender.rolling.policies.type = Policies
appender.rolling.policies.time.type = TimeBasedTriggeringPolicy
appender.rolling.policies.time.interval = 7
appender.rolling.policies.time.modulate = true
appender.rolling.policies.size.type = SizeBasedTriggeringPolicy
appender.rolling.policies.size.size=5MB
appender.rolling.strategy.type = DefaultRolloverStrategy
appender.rolling.strategy.max = 5

# Discord error logging
appender.discord = dev.hotdeals.bob_the_discord_bot.Service.DiscordAppender
appender.discord.name = DiscordAppender
appender.discord.type = DiscordAppender

logger.rolling.name = dev.hotdeals.bob_the_discord_bot
logger.rolling.level = debug
logger.rolling.additivity = true
logger.rolling.appenderRef.rolling.ref = RollingFile

rootLogger.level = debug
rootLogger.appenderRefs = console, discord
rootLogger.appenderRef.stdout.ref = Console
rootLogger.appenderRef.discord.ref = DiscordAppender