Add 'ports' configuration to maven plugin

jib-maven-plugin/CHANGELOG.md

@@ -5,6 +5,8 @@ All notable changes to this project will be documented in this file.
 
 ### Added
 
+- `<container><ports>` parameter to define container's exposed ports (similar to Dockerfile `EXPOSE`) ([#383](https://github.com/GoogleContainerTools/jib/issues/383))
+
 ### Changed
 
 - Fetches credentials from inferred credential helper before Docker config ([#401](https://github.com/GoogleContainerTools/jib/issues/401))

jib-maven-plugin/src/main/java/com/google/cloud/tools/jib/maven/BuildDockerMojo.java

@@ -85,6 +85,7 @@ public void execute() throws MojoExecutionException {
             .setJavaArguments(getArgs())
             .setJvmFlags(getJvmFlags())
             .setEnvironment(getEnvironment())
+            .setExposedPorts(getExposedPorts())
             .build();
 
     // TODO: Instead of disabling logging, have authentication credentials be provided

jib-maven-plugin/src/main/java/com/google/cloud/tools/jib/maven/BuildImageMojo.java

@@ -102,6 +102,7 @@ public void execute() throws MojoExecutionException, MojoFailureException {
             .setJavaArguments(getArgs())
             .setJvmFlags(getJvmFlags())
             .setEnvironment(getEnvironment())
+            .setExposedPorts(getExposedPorts())
             .setTargetFormat(ImageFormat.valueOf(getFormat()).getManifestTemplateClass())
             .build();
 

jib-maven-plugin/src/main/java/com/google/cloud/tools/jib/maven/DockerContextMojo.java

@@ -63,6 +63,7 @@ public void execute() throws MojoExecutionException, MojoFailureException {
           .setJvmFlags(getJvmFlags())
           .setMainClass(mainClass)
           .setJavaArguments(getArgs())
+          .setExposedPorts(getExposedPorts())
           .generate(Paths.get(targetDir));
 
       mavenBuildLogger.info("Created Docker context at " + targetDir);

jib-maven-plugin/src/main/java/com/google/cloud/tools/jib/maven/JibPluginConfiguration.java

@@ -72,6 +72,8 @@ public static class ContainerParameters {
     @Nullable
     @Parameter(required = true)
     private String format = "Docker";
+
+    @Parameter private List<String> ports = Collections.emptyList();
   }
 
   /**
@@ -194,6 +196,10 @@ List<String> getArgs() {
     return container.args;
   }
 
+  List<String> getExposedPorts() {
+    return container.ports;
+  }
+
   String getFormat() {
     return Preconditions.checkNotNull(container.format);
   }

jib-maven-plugin/src/test/java/com/google/cloud/tools/jib/maven/BuildDockerMojoIntegrationTest.java

@@ -21,6 +21,7 @@
 import java.nio.file.Path;
 import org.apache.maven.it.VerificationException;
 import org.apache.maven.it.Verifier;
+import org.hamcrest.CoreMatchers;
 import org.junit.Assert;
 import org.junit.ClassRule;
 import org.junit.Test;
@@ -54,6 +55,15 @@ private static String buildToDockerDaemonAndRun(Path projectRoot, String imageRe
     verifier.executeGoal("jib:" + BuildDockerMojo.GOAL_NAME);
     verifier.verifyErrorFreeLog();
 
+    Assert.assertThat(
+        new Command("docker", "inspect", imageReference).run(),
+        CoreMatchers.containsString(
+            "            \"ExposedPorts\": {\n"
+                + "                \"1000/tcp\": {},\n"
+                + "                \"2000/udp\": {},\n"
+                + "                \"2001/udp\": {},\n"
+                + "                \"2002/udp\": {},\n"
+                + "                \"2003/udp\": {}"));
     return new Command("docker", "run", imageReference).run();
   }
 

jib-maven-plugin/src/test/java/com/google/cloud/tools/jib/maven/BuildImageMojoIntegrationTest.java

@@ -72,6 +72,15 @@ private static String buildAndRun(Path projectRoot, String imageReference)
         timeOne > timeTwo);
 
     new Command("docker", "pull", imageReference).run();
+    Assert.assertThat(
+        new Command("docker", "inspect", imageReference).run(),
+        CoreMatchers.containsString(
+            "            \"ExposedPorts\": {\n"
+                + "                \"1000/tcp\": {},\n"
+                + "                \"2000/udp\": {},\n"
+                + "                \"2001/udp\": {},\n"
+                + "                \"2002/udp\": {},\n"
+                + "                \"2003/udp\": {}"));
     return new Command("docker", "run", imageReference).run();
   }
 

jib-maven-plugin/src/test/java/com/google/cloud/tools/jib/maven/DockerContextMojoIntegrationTest.java

@@ -22,6 +22,7 @@
 import java.nio.file.Path;
 import org.apache.maven.it.VerificationException;
 import org.apache.maven.it.Verifier;
+import org.hamcrest.CoreMatchers;
 import org.junit.Assert;
 import org.junit.ClassRule;
 import org.junit.Test;
@@ -50,6 +51,16 @@ public void testExecute() throws VerificationException, IOException, Interrupted
 
     String imageName = "jib/integration-test";
     new Command("docker", "build", "-t", imageName, dockerContextDirectory.toString()).run();
+    Assert.assertThat(
+        new Command("docker", "inspect", imageName).run(),
+        CoreMatchers.containsString(
+            "            \"ExposedPorts\": {\n"
+                + "                \"1000/tcp\": {},\n"
+                + "                \"2000/udp\": {},\n"
+                + "                \"2001/udp\": {},\n"
+                + "                \"2002/udp\": {},\n"
+                + "                \"2003/udp\": {}"));
+
     Assert.assertEquals(
         "Hello, world. An argument.\n", new Command("docker", "run", imageName).run());
   }

jib-maven-plugin/src/test/resources/projects/default-target/pom.xml

@@ -40,6 +40,10 @@
         <configuration>
           <container>
             <args>An argument.</args>
+            <ports>
+              <port>1000/tcp</port>
+              <port>2000-2003/udp</port>
+            </ports>
           </container>
           <!-- Does not have tests use user-level cache for base image layers. -->
           <useOnlyProjectCache>true</useOnlyProjectCache>

jib-maven-plugin/src/test/resources/projects/empty/pom.xml

@@ -31,6 +31,12 @@
           <to>
             <image>gcr.io/jib-integration-testing/emptyimage:maven</image>
           </to>
+          <container>
+            <ports>
+              <port>1000/tcp</port>
+              <port>2000-2003/udp</port>
+            </ports>
+          </container>
           <!-- Does not have tests use user-level cache for base image layers. -->
           <useOnlyProjectCache>true</useOnlyProjectCache>
         </configuration>

jib-maven-plugin/src/test/resources/projects/simple/pom.xml

@@ -43,6 +43,10 @@
           </to>
           <container>
             <args>An argument.</args>
+            <ports>
+              <port>1000/tcp</port>
+              <port>2000-2003/udp</port>
+            </ports>
           </container>
           <!-- Does not have tests use user-level cache for base image layers. -->
           <useOnlyProjectCache>true</useOnlyProjectCache>