Configure logging (#10)

Dockerfile

@@ -12,6 +12,6 @@ EXPOSE 8080
 WORKDIR /app/conduit-server
 
 COPY --from=build /code/conduit-server/build/distributions/*.tar conduit-server.tar
-RUN tar xvf conduit-server.tar --strip-components=1
+RUN tar xf conduit-server.tar --strip-components=1
 
 CMD bin/conduit-server

build.gradle

@@ -18,6 +18,18 @@ subprojects {
     dependencies {
         implementation group: 'com.google.guava', name: 'guava', version: '29.0-jre'
 
+        implementation group: 'org.slf4j', name: 'slf4j-api', version: '1.7.30'
+
+        // SLF4J as a facade over Log4j2 required dependencies
+        implementation group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.11.0'
+        implementation group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.11.0'
+        implementation group: 'org.apache.logging.log4j', name: 'log4j-slf4j-impl', version: '2.11.0'
+
+        // Bridges from other logging implementations to SLF4J
+        implementation group: 'org.slf4j', name: 'jul-to-slf4j', version: '1.7.30' // JUL bridge
+        implementation group: 'org.slf4j', name: 'jcl-over-slf4j', version: '1.7.30' //JCL bridge
+        implementation group: 'org.slf4j', name: 'log4j-over-slf4j', version: '1.7.30' // log4j1.2 bridge
+
         testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.4.2'
         testImplementation 'org.junit.jupiter:junit-jupiter-api:5.4.2'
         testImplementation group: 'org.mockito', name: 'mockito-junit-jupiter', version: '3.4.6'

conduit-commons/src/main/resources/log4j2.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="INFO">
+
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n"/>
+        </Console>
+    </Appenders>
+
+    <Loggers>
+        <Root level="TRACE">
+            <AppenderRef ref="Console"/>
+        </Root>
+
+        <Logger name="org.eclipse.jetty" level="INFO" additivity="false">
+            <AppenderRef ref="Console"/>
+        </Logger>
+
+    </Loggers>
+
+</Configuration>

conduit-server/build.gradle

@@ -12,6 +12,7 @@ dependencies {
     implementation group: 'org.glassfish.jersey.media', name: 'jersey-media-json-jackson', version: '2.31'
 
     implementation project(':conduit-api')
+    implementation project(':conduit-commons')
 }
 
 application {

conduit-server/src/main/java/io/dataline/conduit/server/ServerApp.java

@@ -6,8 +6,11 @@ import org.eclipse.jetty.servlet.ServletContextHandler;
 import org.eclipse.jetty.servlet.ServletHolder;
 import org.glassfish.jersey.server.ResourceConfig;
 import org.glassfish.jersey.servlet.ServletContainer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class ServerApp {
+    private final static Logger LOGGER = LoggerFactory.getLogger(ServerApp.class);
 
     public ServerApp() {
     }
@@ -31,7 +34,7 @@ public class ServerApp {
     }
 
     public static void main(String[] args) throws Exception {
-        System.out.println("Starting Server...");
+        LOGGER.info("Starting server...");
 
         new ServerApp().start();
     }

tools/app/build.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+set -e
+
+. tools/lib/lib.sh
+
+main() {
+  assert_root
+
+  docker build . -t dataline/conduit:$VERSION
+}
+
+main "$@"

tools/app/publish.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+set -e
+
+. tools/lib/lib.sh
+
+main() {
+  assert_root
+
+  docker push dataline/conduit:$VERSION
+}
+
+main "$@"