How to configure the file log4j2.properties to delete logs and to define a size limit?

Version 5.3.0

My logs are with longer size, only the file logstash.log has 15GB. (logstash/logs/logstash.log)
How to configure the file log4j2.properties to delete older logs and your limit size to be 20MB?

My file log4j.properties (exactly the same when was downloaded):

```
status = error
name = LogstashPropertiesConfig

appender.console.type = Console
appender.console.name = plain_console
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c] %m%n

appender.json_console.type = Console
appender.json_console.name = json_console
appender.json_console.layout.type = JSONLayout
appender.json_console.layout.compact = true
appender.json_console.layout.eventEol = true

appender.rolling.type = RollingFile
appender.rolling.name = plain_rolling
appender.rolling.fileName = ${sys:ls.logs}/logstash-${sys:ls.log.format}.log
appender.rolling.filePattern = ${sys:ls.logs}/logstash-${sys:ls.log.format}-%d{yyyy-MM-dd}.log
appender.rolling.policies.type = Policies
appender.rolling.policies.time.type = TimeBasedTriggeringPolicy
appender.rolling.policies.time.interval = 1
appender.rolling.policies.time.modulate = true
appender.rolling.layout.type = PatternLayout
appender.rolling.layout.pattern = [%d{ISO8601}][%-5p][%-25c] %-.10000m%n

appender.json_rolling.type = RollingFile
appender.json_rolling.name = json_rolling
appender.json_rolling.fileName = ${sys:ls.logs}/logstash-${sys:ls.log.format}.log
appender.json_rolling.filePattern = ${sys:ls.logs}/logstash-${sys:ls.log.format}-%d{yyyy-MM-dd}.log
appender.json_rolling.policies.type = Policies
appender.json_rolling.policies.time.type = TimeBasedTriggeringPolicy
appender.json_rolling.policies.time.interval = 1
appender.json_rolling.policies.time.modulate = true
appender.json_rolling.layout.type = JSONLayout
appender.json_rolling.layout.compact = true
appender.json_rolling.layout.eventEol = true

rootLogger.level = ${sys:ls.log.level}
rootLogger.appenderRef.console.ref = ${sys:ls.log.format}_console
rootLogger.appenderRef.rolling.ref = ${sys:ls.log.format}_rolling

# Slowlog

appender.console_slowlog.type = Console
appender.console_slowlog.name = plain_console_slowlog
appender.console_slowlog.layout.type = PatternLayout
appender.console_slowlog.layout.pattern = [%d{ISO8601}][%-5p][%-25c] %m%n

appender.json_console_slowlog.type = Console
appender.json_console_slowlog.name = json_console_slowlog
appender.json_console_slowlog.layout.type = JSONLayout
appender.json_console_slowlog.layout.compact = true
appender.json_console_slowlog.layout.eventEol = true

appender.rolling_slowlog.type = RollingFile
appender.rolling_slowlog.name = plain_rolling_slowlog
appender.rolling_slowlog.fileName = ${sys:ls.logs}/logstash-slowlog-${sys:ls.log.format}.log
appender.rolling_slowlog.filePattern = ${sys:ls.logs}/logstash-slowlog-${sys:ls.log.format}-%d{yyyy-MM-dd}.log
appender.rolling_slowlog.policies.type = Policies
appender.rolling_slowlog.policies.time.type = TimeBasedTriggeringPolicy
appender.rolling_slowlog.policies.time.interval = 1
appender.rolling_slowlog.policies.time.modulate = true
appender.rolling_slowlog.layout.type = PatternLayout
appender.rolling_slowlog.layout.pattern = [%d{ISO8601}][%-5p][%-25c] %.10000m%n

appender.json_rolling_slowlog.type = RollingFile
appender.json_rolling_slowlog.name = json_rolling_slowlog
appender.json_rolling_slowlog.fileName = ${sys:ls.logs}/logstash-slowlog-${sys:ls.log.format}.log
appender.json_rolling_slowlog.filePattern = ${sys:ls.logs}/logstash-slowlog-${sys:ls.log.format}-%d{yyyy-MM-dd}.log
appender.json_rolling_slowlog.policies.type = Policies
appender.json_rolling_slowlog.policies.time.type = TimeBasedTriggeringPolicy
appender.json_rolling_slowlog.policies.time.interval = 1
appender.json_rolling_slowlog.policies.time.modulate = true
appender.json_rolling_slowlog.layout.type = JSONLayout
appender.json_rolling_slowlog.layout.compact = true
appender.json_rolling_slowlog.layout.eventEol = true

logger.slowlog.name = slowlog
logger.slowlog.level = trace
logger.slowlog.appenderRef.console_slowlog.ref = ${sys:ls.log.format}_console_slowlog
logger.slowlog.appenderRef.rolling_slowlog.ref = ${sys:ls.log.format}_rolling_slowlog
logger.slowlog.additivity = false

```