[BE] feat: warn, error 발생 시 슬랙으로 알람기능 추가 (#327)

backend/build.gradle

@@ -26,6 +26,7 @@ dependencies {
     implementation 'org.springdoc:springdoc-openapi-ui:1.7.0'
     implementation 'commons-fileupload:commons-fileupload:1.5'
     implementation 'commons-io:commons-io:2.11.0'
+    implementation 'com.github.maricn:logback-slack-appender:1.4.0'
 }
 
 tasks.named('test') {

backend/src/main/resources/logback-spring.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<configuration>
+    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>
+    <include resource="org/springframework/boot/logging/logback/console-appender.xml"/>
+
+    <springProperty name="SLACK_WEBHOOK_URI" source="logging.slack.webhook-uri"/>
+    <appender name="SLACK" class="com.github.maricn.logback.SlackAppender">
+        <webhookUri>${SLACK_WEBHOOK_URI}</webhookUri>
+        <layout class="ch.qos.logback.classic.PatternLayout">
+            <Pattern>[%d{yyyy-MM-dd HH:mm:ss}:%-3relative][%thread] %-5level %logger{0} - %msg%n</Pattern>
+        </layout>
+        <username>open-macbook</username>
+        <iconEmoji>:face_with_symbols_on_mouth:</iconEmoji>
+        <colorCoding>true</colorCoding>
+    </appender>
+
+    <appender name="ASYNC_SLACK" class="ch.qos.logback.classic.AsyncAppender">
+        <appender-ref ref="SLACK"/>
+        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+            <level>WARN</level>
+        </filter>
+    </appender>
+
+    <root level="INFO">
+        <appender-ref ref="CONSOLE"/>
+        <appender-ref ref="ASYNC_SLACK"/>
+    </root>
+</configuration>