Support image building with Gradle and war packaging

This commit updates the Gradle image building task to support building
images from executable and non-executable war files.

Fixes gh-23825
pull/25416/head
Scott Frederick 4 years ago
parent f09630f73c
commit a80c4ad38d

@ -1,14 +1,12 @@
[[build-image]]
== Packaging OCI Images
The plugin can create an https://github.com/opencontainers/image-spec[OCI image] from an executable jar file using https://buildpacks.io[Cloud Native Buildpacks] (CNB).
The plugin can create an https://github.com/opencontainers/image-spec[OCI image] from a jar or war file using https://buildpacks.io[Cloud Native Buildpacks] (CNB).
Images can be built using the `bootBuildImage` task.
NOTE: For security reasons, images build and run as non-root users.
See the {buildpacks-reference}/reference/spec/platform-api/#users[CNB specification] for more details.
The task is automatically created when the `java` plugin is applied and is an instance of {boot-build-image-javadoc}[`BootBuildImage`].
NOTE: The `bootBuildImage` task is not supported with projects using <<packaging-executable-wars, war packaging>>.
The task is automatically created when the `java` or `war` plugin is applied and is an instance of {boot-build-image-javadoc}[`BootBuildImage`].
NOTE: The `bootBuildImage` task can not be used with a <<packaging-executable-configuring-launch-script, fully executable Spring Boot archive>> that includes a launch script.
Disable launch script configuration in the `bootJar` task when building a jar file that is intended to be used with `bootBuildImage`.

@ -123,7 +123,7 @@ final class JavaPluginAction implements PluginApplicationAction {
project.getTasks().register(SpringBootPlugin.BOOT_BUILD_IMAGE_TASK_NAME, BootBuildImage.class, (buildImage) -> {
buildImage.setDescription("Builds an OCI image of the application using the output of the bootJar task");
buildImage.setGroup(BasePlugin.BUILD_GROUP);
buildImage.getJar().set(bootJar.get().getArchiveFile());
buildImage.getArchiveFile().set(bootJar.get().getArchiveFile());
buildImage.getTargetJavaVersion().set(javaPluginConvention(project).getTargetCompatibility());
});
}

@ -1,5 +1,5 @@
/*
* Copyright 2012-2020 the original author or authors.
* Copyright 2012-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -22,7 +22,6 @@ import org.gradle.api.Project;
import org.gradle.api.artifacts.Configuration;
import org.gradle.api.artifacts.ConfigurationContainer;
import org.gradle.api.file.FileCollection;
import org.gradle.api.file.RegularFile;
import org.gradle.api.internal.artifacts.dsl.LazyPublishArtifact;
import org.gradle.api.plugins.BasePlugin;
import org.gradle.api.plugins.WarPlugin;
@ -56,8 +55,8 @@ class WarPluginAction implements PluginApplicationAction {
@Override
public void execute(Project project) {
disableWarTask(project);
disableBootBuildImageTask(project);
TaskProvider<BootWar> bootWar = configureBootWarTask(project);
configureBootBuildImageTask(project, bootWar);
configureArtifactPublication(bootWar);
}
@ -65,11 +64,6 @@ class WarPluginAction implements PluginApplicationAction {
project.getTasks().named(WarPlugin.WAR_TASK_NAME).configure((war) -> war.setEnabled(false));
}
private void disableBootBuildImageTask(Project project) {
project.getTasks().named(SpringBootPlugin.BOOT_BUILD_IMAGE_TASK_NAME, BootBuildImage.class)
.configure((buildImage) -> buildImage.getJar().set((RegularFile) null));
}
private TaskProvider<BootWar> configureBootWarTask(Project project) {
Configuration developmentOnly = project.getConfigurations()
.getByName(SpringBootPlugin.DEVELOPMENT_ONLY_CONFIGURATION_NAME);
@ -103,6 +97,11 @@ class WarPluginAction implements PluginApplicationAction {
return configurations.getByName(WarPlugin.PROVIDED_RUNTIME_CONFIGURATION_NAME);
}
private void configureBootBuildImageTask(Project project, TaskProvider<BootWar> bootWar) {
project.getTasks().named(SpringBootPlugin.BOOT_BUILD_IMAGE_TASK_NAME, BootBuildImage.class)
.configure((buildImage) -> buildImage.getArchiveFile().set(bootWar.get().getArchiveFile()));
}
private void configureArtifactPublication(TaskProvider<BootWar> bootWar) {
LazyPublishArtifact artifact = new LazyPublishArtifact(bootWar);
this.singlePublishedArtifact.addCandidate(artifact);

@ -68,7 +68,7 @@ public class BootBuildImage extends DefaultTask {
private final Property<String> projectVersion;
private RegularFileProperty jar;
private RegularFileProperty archiveFile;
private Property<JavaVersion> targetJavaVersion;
@ -95,7 +95,7 @@ public class BootBuildImage extends DefaultTask {
private final DockerSpec docker = new DockerSpec();
public BootBuildImage() {
this.jar = getProject().getObjects().fileProperty();
this.archiveFile = getProject().getObjects().fileProperty();
this.targetJavaVersion = getProject().getObjects().property(JavaVersion.class);
this.projectName = getProject().getName();
this.projectVersion = getProject().getObjects().property(String.class);
@ -106,13 +106,22 @@ public class BootBuildImage extends DefaultTask {
}
/**
* Returns the property for the jar file from which the image will be built.
* @return the jar property
* Returns the property for the archive file from which the image will be built.
* @return the archive file property
*/
@Input
public RegularFileProperty getArchiveFile() {
return this.archiveFile;
}
/**
* Returns the property for the archive file from which the image will be built.
* @return the archive file property
* @deprecated since 2.5.0 in favor of {@link #getArchiveFile()}
*/
@Input
@Optional
public RegularFileProperty getJar() {
return this.jar;
return this.archiveFile;
}
/**
@ -396,17 +405,14 @@ public class BootBuildImage extends DefaultTask {
@TaskAction
void buildImage() throws DockerEngineException, IOException {
if (!this.jar.isPresent()) {
throw new GradleException("Executable jar file required for building image");
}
BuildRequest request = createRequest();
Builder builder = new Builder(this.docker.asDockerConfiguration());
BuildRequest request = createRequest();
builder.build(request);
}
BuildRequest createRequest() {
return customize(BuildRequest.of(determineImageReference(),
(owner) -> new ZipFileTarArchive(this.jar.get().getAsFile(), owner)));
(owner) -> new ZipFileTarArchive(this.archiveFile.get().getAsFile(), owner)));
}
private ImageReference determineImageReference() {

@ -79,6 +79,47 @@ class BootBuildImageIntegrationTests {
}
}
@TestTemplate
void buildsImageWithWarPackaging() throws IOException {
writeMainClass();
writeLongNameResource();
BuildResult result = this.gradleBuild.build("bootBuildImage", "-PapplyWarPlugin",
"--pullPolicy=IF_NOT_PRESENT");
String projectName = this.gradleBuild.getProjectDir().getName();
assertThat(result.task(":bootBuildImage").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
assertThat(result.getOutput()).contains("docker.io/library/" + projectName);
File buildLibs = new File(this.gradleBuild.getProjectDir(), "build/libs");
assertThat(buildLibs.listFiles())
.containsExactly(new File(buildLibs, this.gradleBuild.getProjectDir().getName() + ".war"));
ImageReference imageReference = ImageReference.of(ImageName.of(projectName));
try (GenericContainer<?> container = new GenericContainer<>(imageReference.toString())) {
container.waitingFor(Wait.forLogMessage("Launched\\n", 1)).start();
}
finally {
new DockerApi().image().remove(imageReference, false);
}
}
@TestTemplate
void buildsImageWithWarPackagingAndJarConfiguration() throws IOException {
writeMainClass();
writeLongNameResource();
BuildResult result = this.gradleBuild.build("bootBuildImage", "--pullPolicy=IF_NOT_PRESENT");
String projectName = this.gradleBuild.getProjectDir().getName();
assertThat(result.task(":bootBuildImage").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
assertThat(result.getOutput()).contains("docker.io/library/" + projectName);
File buildLibs = new File(this.gradleBuild.getProjectDir(), "build/libs");
assertThat(buildLibs.listFiles())
.containsExactly(new File(buildLibs, this.gradleBuild.getProjectDir().getName() + ".war"));
ImageReference imageReference = ImageReference.of(ImageName.of(projectName));
try (GenericContainer<?> container = new GenericContainer<>(imageReference.toString())) {
container.waitingFor(Wait.forLogMessage("Launched\\n", 1)).start();
}
finally {
new DockerApi().image().remove(imageReference, false);
}
}
@TestTemplate
void buildsImageWithCustomName() throws IOException {
writeMainClass();
@ -267,15 +308,6 @@ class BootBuildImageIntegrationTests {
assertThat(result.getOutput()).contains("requires docker.publishRegistry");
}
@TestTemplate
void failsWithWarPackaging() throws IOException {
writeMainClass();
writeLongNameResource();
BuildResult result = this.gradleBuild.buildAndFail("bootBuildImage", "-PapplyWarPlugin");
assertThat(result.task(":bootBuildImage").getOutcome()).isEqualTo(TaskOutcome.FAILED);
assertThat(result.getOutput()).contains("Executable jar file required for building image");
}
@TestTemplate
void failsWithBuildpackNotInBuilder() throws IOException {
writeMainClass();
@ -285,26 +317,6 @@ class BootBuildImageIntegrationTests {
assertThat(result.getOutput()).contains("'urn:cnb:builder:example/does-not-exist:0.0.1' not found in builder");
}
@TestTemplate
void buildsImageWithWarPackagingAndJarConfiguration() throws IOException {
writeMainClass();
writeLongNameResource();
BuildResult result = this.gradleBuild.build("bootBuildImage", "--pullPolicy=IF_NOT_PRESENT");
String projectName = this.gradleBuild.getProjectDir().getName();
assertThat(result.task(":bootBuildImage").getOutcome()).isEqualTo(TaskOutcome.SUCCESS);
assertThat(result.getOutput()).contains("docker.io/library/" + projectName);
File buildLibs = new File(this.gradleBuild.getProjectDir(), "build/libs");
assertThat(buildLibs.listFiles())
.containsExactly(new File(buildLibs, this.gradleBuild.getProjectDir().getName() + ".war"));
ImageReference imageReference = ImageReference.of(ImageName.of(projectName));
try (GenericContainer<?> container = new GenericContainer<>(imageReference.toString())) {
container.waitingFor(Wait.forLogMessage("Launched\\n", 1)).start();
}
finally {
new DockerApi().image().remove(imageReference, false);
}
}
private void writeMainClass() throws IOException {
File examplePackage = new File(this.gradleBuild.getProjectDir(), "src/main/java/example");
examplePackage.mkdirs();

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