feat(loki): send logs to loki to centralize logs

.env.example

@@ -17,6 +17,11 @@ JAVA_OPTS=-Xmx512m
 # Logging configuration
 LOG_LEVEL=INFO
 
+LOKI_HOST=logs-prod-020.grafana.net
+LOKI_PORT=443
+LOKI_USERNAME=your_loki_username
+LOKI_PASSWORD=your_loki_password
+
 # App configuration
 ENV=DEVELOPMENT
 ADMIN_IDS=1000001999,1000002000,1000002001

build.gradle.kts

@@ -24,6 +24,7 @@ configurations {
 dependencies {
     annotationProcessor("org.projectlombok:lombok:1.18.36")
     implementation("com.couchbase.client:java-client:3.7.6")
+    implementation("com.fasterxml.jackson.core:jackson-databind:2.18.2")
     implementation("com.google.code.gson:gson:2.11.0")
     implementation("com.google.guava:guava:33.4.0-jre")
     implementation("org.apache.commons:commons-math3:3.6.1")
@@ -32,6 +33,7 @@ dependencies {
     implementation("org.telegram:telegrambots-client:8.0.0")
     implementation("org.telegram:telegrambots-extensions:8.0.0")
     implementation("org.telegram:telegrambots-longpolling:8.0.0")
+    implementation("pl.tkowalcz.tjahzi:log4j2-appender:0.9.32")
 
     testAnnotationProcessor("org.projectlombok:lombok:1.18.36")
     testImplementation(platform("org.junit:junit-bom:5.11.4"))

src/main/resources/log4j2.xml

@@ -3,6 +3,8 @@
   <Properties>
     <Property name="CONSOLE_LOG_PATTERN">%d{HH:mm:ss.SSS} %5p --- [%t] %c : %m%n</Property>
     <Property name="CONSOLE_LOG_CHARSET">UTF-8</Property>
+    <Property name="LOKI_LOG_PATTERN">%d{yyyy-MM-dd HH:mm:ss.SSS} %5p --- [%t] %c : %m%n</Property>
+    <Property name="LOKI_LOG_CHARSET">UTF-8</Property>
   </Properties>
 
   <Appenders>
@@ -12,10 +14,24 @@
         <ThresholdFilter level="TRACE"/>
       </Filters>
     </Console>
+
+    <Loki name="Loki">
+      <host>${env:LOKI_HOST}</host>
+      <port>${env:LOKI_PORT}</port>
+
+      <username>${env:LOKI_USERNAME}</username>
+      <password>${env:LOKI_PASSWORD}</password>
+
+      <PatternLayout pattern="${LOKI_LOG_PATTERN}" charset="${LOKI_LOG_CHARSET}"/>
+
+      <Label name="service_name" value="StoreScraperBot"/>
+      <Label name="environment" value="${env:ENV}"/>
+    </Loki>
   </Appenders>
   <Loggers>
     <Root level="${env:LOG_LEVEL:-debug}">
       <AppenderRef ref="ConsoleAppender"/>
+      <AppenderRef ref="Loki"/>
     </Root>
   </Loggers>
 </Configuration>