Overriding logback.xml with Spring Boot 1.5.x application - spring

I'm trying to write logback configuration in Spring Boot(1.5.x) application.
Problem -
The problem is that it doesn't create any log file/folder (or may be not in correct path).
CODE -
logback.xml
<configuration>
<include resource="org/springframework/boot/logging/logback/base.xml"/>
<property name="LOG_PATH" value="logs" />
<appender name="ROLLING" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOG_PATH}/mylog.log</file>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<!-- rollover daily -->
<fileNamePattern>${LOG_PATH}/mylog-%d{yyyy-MM-dd}.%i.log</fileNamePattern>
<!-- each file should be at most 100MB, keep 60 days worth of history, but at most 20GB -->
<maxFileSize>100MB</maxFileSize>
<maxHistory>60</maxHistory>
<totalSizeCap>20GB</totalSizeCap>
</rollingPolicy>
<encoder>
<pattern>%msg%n</pattern>
</encoder>
</appender>
</configuration>

Either pass the LOG_PATH while variable while running the application or define it in the same file as follows <property name="LOG_PATH" value="logs"/>
And also add
<root level="INFO">
<appender-ref ref="ROLLING"/>
</root>

Add this at the end before </configuration>
<root level="INFO">
<appender-ref ref="ROLLING"/>
</root>

Related

Slf4j zip and roll over for log folder daily

I have a Springboot application that creates multiple log files using slf4j(logback.xml) throughout day and along with it my application archives some necessary files throughout the day in same logs/archived-YYYY-MM-DD folder.
I am able to create a directory under logs/archived-YYYY-MM-DD Eg: logs/archived-2022-08-26 using logback.xml(below). Is it possible via slf4j when the next day folder is created the previous day is zipped(archived-2022-08-26.zip) and rolledover for only kept for last 3 days.
Here is the snippet of my current logback.xml
<configuration>
<include resource="org/springframework/boot/logging/logback/defaults.xml"/>
<property resource="application.properties" />
<property name="APP_LOG_PATTERN" value="${logback.log.app.pattern}"/>
<property name="APP_LOG_ROOT" value="${logback.app.log.root}"/>
<appender name="FILE-LOGGING" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${APP_LOG_ROOT}/application.log</file>
<encoder>
<pattern>${APP_LOG_PATTERN}</pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>logs/archived-%d{yyyy-MM-dd}/application.%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<totalSizeCap>2GB</totalSizeCap>
<maxHistory>3</maxHistory>
</rollingPolicy>
</appender>
<appender name="SERVICEA-LOGGING" class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${APP_LOG_ROOT}/serviceA.log</file>
<encoder>
<pattern>${APP_LOG_PATTERN}</pattern>
</encoder>
<rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>logs/archived-%d{yyyy-MM-dd}/serviceA.%i.log</fileNamePattern>
<maxFileSize>10MB</maxFileSize>
<totalSizeCap>2GB</totalSizeCap>
<maxHistory>3</maxHistory>
</rollingPolicy>
</appender>
<root name="application-log" level="info" additivity="false">
<appender-ref ref="FILE-LOGGING"/>
</root>
<logger name="token-log" level="info" additivity="false">
<appender-ref ref="SERVICEA-LOGGING" />
</logger>
</configuration>

logback-spring. is unable to read property value from application.yml

My logback-spring.xml reads fine from application.properties but not from application.yml. In my project, we have been asked to only use the YAML format as this format is being used in other microservices within the same project, so I cannot add propertes file. please help me why my application.yml is not read in logback.xml
I have tried variety of ways and searched similar questions on stackoverflow but no question has correct answer**. please dont mark this as duplicate**.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="org/springframework/boot/logging/logback/defaults.xml"/>
<include resource="org/springframework/boot/logging/logback/base.xml"/>
<include resource="org/springframework/boot/logging/logback/console-appender.xml"/>
<property resource ="application.yml"/>
<property name="LOGS" value="./logs" />
<appender name="Console"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<appender name="RollingFile"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOGS}/${spring.application.name}.log</file>
<encoder
class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
</encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily and when the file reaches 10 MegaBytes -->
<fileNamePattern>${LOGS}/archived/spring-boot-logger-%d{yyyy-MM-dd}.%i.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<!-- LOG everything at INFO level -->
<root level="info">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</root>
<!-- LOG "com.baeldung*" at TRACE level -->
<logger name="com.ms" level="trace" additivity="false">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</logger>
</configuration>
Above is my logback-spring.xml. Please refer my application.yml below:-
spring:
application:
name: Logbacking-service
You can use below in your logback file as explained in the docs here
<springProperty name = "appname" source= "spring.application.name"/>
and then use this elsewhere
<file>${LOGS}/${appname}.log</file>
I tested the exact code you used and it was indeed giving issue so the above solution should work as it work for me as well. Earlier with your code the log file name that was getting generated was "appname_IS_UNDEFINED.log", and post the above change the name was "Logbacking-service.log".
If you enable trace logging level in your logback for "org.springframework.core.env.PropertySourcesPropertyResolver" you will see the location of application.yml from where it reads the properties. This will help you understand from where the spring boot is trying to find configuration. Something like below
Searching for key 'spring.profiles.active' in PropertySource 'applicationConfig: [classpath:/application.yml]

how to include xml in log-back.xml

I am writing a custom spring boot starter project for logging. My logback-spring.xml become large and want to put the appenders in separate file (console-appender.xml and file-appender.xml) and want to include in the logback-spring.xml file like below. I place all the three xmls in src/main/resources folder in my custom starter project.
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<springProperty scope="context" name="JSONLOGSENABLED" source="spring.logs.json.enabled" defaultValue="true" />
<springProperty scope="context" name="JSONLOGSAPPENDER" source="spring.logs.json.appender" defaultValue="console" />
<if condition='property("JSONLOGSENABLED").equalsIgnoreCase("true")'>
<then>
<include file="{path to file}/console-appender.xml"/>
<include file="{path to file}/file-appender.xml"/>
<root level="INFO">
<if condition='property("JSONLOGSAPPENDER").equalsIgnoreCase("file")'>
<then>
<appender-ref ref="FILEJSON" />
</then>
<else>
<appender-ref ref="CONSOLEJSON" />
</else>
</if>
</root>
</then>
</if>
<logger
name="org.springframework.web.filter.CommonsRequestLoggingFilter">
<level value="DEBUG" />
</logger>
</configuration>
file-appender.xml
<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>testFile.log</file>
<append>true</append>
<!-- set immediateFlush to false for much higher logging throughput -->
<immediateFlush>true</immediateFlush>
<!-- encoders are assigned the type
ch.qos.logback.classic.encoder.PatternLayoutEncoder by default -->
<encoder>
<pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern>
</encoder>
</appender>
But when use this starter in my spring boot application, it is not able to resolve the console and file appender files.
I have tried putting following paths :
<include file="/src/main/resources/console-appender.xml"/>
<include file="./console-appender.xml"/>
<include resource="console-appender.xml"/>
How to include files properly in this case ?
Yes it's possible. Logback uses Joran so you have to follow the Joran rules.
For more info see documentation.
Anyway this is the preferred way to do what you're looking for.
For instance I define two files, then you adapt it as you prefer.
logback-spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<include resource="console-appender.xml"/>
<root level="debug">
<appender-ref ref="CONSOLE"/>
</root>
</configuration>
console-appender.xml
<included>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%date{"yyyy-MM-dd HH:mm:ss.SSS", Europe/Rome} [%mdc{id}] [%-11thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
</included>
Please note the <included> tag is mandatory

Logback I want File do not create when the appender is never used. [RollingFileAppender]

I'm creating a logback-common config file for my applis.
I'm defining a RollingFileAppender in it, that for all my applis generates the same log format in a file (if we need it).
Sometimes I want to use this appender, and sometimes not (when we test for example).
So we configure our specific logback-{profile}.xml depending what we want.
But when we do not use the FILE appender, the file gets created and I would like not.
I have:
logback-common.xml >> with all appenders definition (FILE and COMMON)
appli_one
resources/logback.xml >> call logback-common and config/logback-{profile}.xml
resources/config/logback-{profile}.xml >> specific appli/profile logback configuration.
To configure we can do in logback-{profile}.xml
<root level="WARN">
<appender-ref ref="FILE"/> <!-- For File Log when we need it -->
<appender-ref ref="CONSOLE"/>
</root>
<root level="WARN">
<!-- <appender-ref ref="FILE"/> --> <!-- in comment when we do not need if > BUT create a empty file -->
<appender-ref ref="CONSOLE"/>
</root>
logback-common.xml
<included>
<!-- The FILE and ASYNC appenders are here as examples for a production
configuration -->
<appender name="FILE"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>log/${spring.application.name}.log</file>
<rollingPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
<fileNamePattern>
log/${spring.application.name}.%d{yyyy-MM-dd}.%i.log.zip
</fileNamePattern>
<maxHistory>90</maxHistory>
<maxFileSize>10MB</maxFileSize>
</rollingPolicy>
<encoder>
<charset>utf-8</charset>
<Pattern>%d %-5level [%thread] %logger{0}: %msg%n</Pattern>
</encoder>
</appender>
<appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>"%d{yyyy-MM-dd} [%thread] %-5level %45logger{45} - %msg%n"</pattern>
</encoder>
</appender>
</included>
logback.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration scan="true" packagingData="true">
<property name="spring_profiles_active" value="${spring.profiles.active}" />
<property resource="application.properties"/>
<include resource="config/log/logback-common.xml"/>
<include resource="config/log/logback-${spring_profiles_active}.xml"/>
</configuration>
Not a core feature of logback but there are workarounds to achieve lazy file initialization.
See more here
Logback - do not create empty log files at startup

Logback created file but not able to append

I am using spring boot and logback. I am able to log into file in my local environment with IDE (IntelliJ), but it fails to log on AWS EC2 redhat linux with a JBoss EAP 7.1. I tried to set the log file permission to 777 after it is created, but still not working. The way I start up the server is
sudo sh /home/ec2-user/jboss-eap-7.1/bin/standalone.sh
my logback-spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<!--Local-->
<!--<property name="LOG_FOLDER" value="${user.dir}/log" />-->
<!--Server-->
<property name="LOG_FOLDER" value="/home/ec2-user/jboss-eap-7.1/applications/springboottest/log"/>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
<level>INFO</level>
</filter>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>[%d{HH:mm:ss.SSS}] THREAD=[%6.-6X{threadID}] %-5level [%30.-30logger{0}] - %msg%n</Pattern>
</layout>
</appender>
<appender name="ALL" class="ch.qos.logback.core.rolling.RollingFileAppender">
<append>true</append>
<rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<fileNamePattern>${LOG_FOLDER}/log.all.%d{yyyy-MM-dd}.log</fileNamePattern>
<maxHistory>60</maxHistory>
</rollingPolicy>
<encoder>
<pattern>[%d{HH:mm:ss.SSS}] THREAD=[%6.-6X{threadID}] %-5level [%30.-30logger{0}] - %msg%n</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT"/>
<appender-ref ref="ALL"/>
</root>
</configuration>
Does anyone know why it cannot append to the file?
Any help is appreciated. Thanks

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