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

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>