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/*
* Copyright 2012-2023 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.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.boot.maven;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import java.time.Duration;
import java.util.Collections;
import java.util.function.Consumer;
import java.util.function.Function;
import java.util.function.Supplier;
import java.util.zip.ZipEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveEntry;
import org.apache.commons.compress.archivers.tar.TarArchiveOutputStream;
import org.apache.commons.compress.archivers.tar.TarConstants;
import org.apache.maven.artifact.Artifact;
import org.apache.maven.plugin.MojoExecutionException;
import org.apache.maven.plugin.logging.Log;
import org.apache.maven.plugins.annotations.Parameter;
import org.springframework.boot.buildpack.platform.build.AbstractBuildLog;
import org.springframework.boot.buildpack.platform.build.BuildLog;
import org.springframework.boot.buildpack.platform.build.BuildRequest;
import org.springframework.boot.buildpack.platform.build.Builder;
import org.springframework.boot.buildpack.platform.build.Creator;
import org.springframework.boot.buildpack.platform.build.PullPolicy;
import org.springframework.boot.buildpack.platform.docker.TotalProgressEvent;
import org.springframework.boot.buildpack.platform.docker.configuration.DockerConfiguration;
import org.springframework.boot.buildpack.platform.io.Owner;
import org.springframework.boot.buildpack.platform.io.TarArchive;
import org.springframework.boot.loader.tools.EntryWriter;
import org.springframework.boot.loader.tools.ImagePackager;
import org.springframework.boot.loader.tools.LayoutFactory;
import org.springframework.boot.loader.tools.Libraries;
import org.springframework.util.StringUtils;
/**
* Package an application into an OCI image using a buildpack.
*
* @author Phillip Webb
* @author Scott Frederick
* @author Jeroen Meijer
* @since 2.3.0
*/
public abstract class BuildImageMojo extends AbstractPackagerMojo {
static {
System.setProperty("org.slf4j.simpleLogger.log.org.apache.http.wire", "ERROR");
}
/**
* Directory containing the source archive.
* @since 2.3.0
*/
@Parameter(defaultValue = "${project.build.directory}", required = true)
private File sourceDirectory;
/**
* Name of the source archive.
* @since 2.3.0
*/
@Parameter(defaultValue = "${project.build.finalName}", readonly = true)
private String finalName;
/**
* Skip the execution.
* @since 2.3.0
*/
@Parameter(property = "spring-boot.build-image.skip", defaultValue = "false")
private boolean skip;
/**
* Classifier used when finding the source archive.
* @since 2.3.0
*/
@Parameter
private String classifier;
/**
* Image configuration, with {@code builder}, {@code runImage}, {@code name},
* {@code env}, {@code cleanCache}, {@code verboseLogging}, {@code pullPolicy}, and
* {@code publish} options.
* @since 2.3.0
*/
@Parameter
private Image image;
/**
* Alias for {@link Image#name} to support configuration through command-line
* property.
* @since 2.3.0
*/
@Parameter(property = "spring-boot.build-image.imageName", readonly = true)
String imageName;
/**
* Alias for {@link Image#builder} to support configuration through command-line
* property.
* @since 2.3.0
*/
@Parameter(property = "spring-boot.build-image.builder", readonly = true)
String imageBuilder;
/**
* Alias for {@link Image#runImage} to support configuration through command-line
* property.
* @since 2.3.1
*/
@Parameter(property = "spring-boot.build-image.runImage", readonly = true)
String runImage;
/**
* Alias for {@link Image#cleanCache} to support configuration through command-line
* property.
* @since 2.4.0
*/
@Parameter(property = "spring-boot.build-image.cleanCache", readonly = true)
Boolean cleanCache;
/**
* Alias for {@link Image#pullPolicy} to support configuration through command-line
* property.
*/
@Parameter(property = "spring-boot.build-image.pullPolicy", readonly = true)
PullPolicy pullPolicy;
/**
* Alias for {@link Image#publish} to support configuration through command-line
* property.
*/
@Parameter(property = "spring-boot.build-image.publish", readonly = true)
Boolean publish;
/**
* Alias for {@link Image#network} to support configuration through command-line
* property.
* @since 2.6.0
*/
@Parameter(property = "spring-boot.build-image.network", readonly = true)
String network;
/**
* Docker configuration options.
* @since 2.4.0
*/
@Parameter
private Docker docker;
/**
* The type of archive (which corresponds to how the dependencies are laid out inside
* it). Possible values are {@code JAR}, {@code WAR}, {@code ZIP}, {@code DIR},
* {@code NONE}. Defaults to a guess based on the archive type.
* @since 2.3.11
*/
@Parameter
private LayoutType layout;
/**
* The layout factory that will be used to create the executable archive if no
* explicit layout is set. Alternative layouts implementations can be provided by 3rd
* parties.
* @since 2.3.11
*/
@Parameter
private LayoutFactory layoutFactory;
/**
* Return the type of archive that should be used when building the image.
* @return the value of the {@code layout} parameter, or {@code null} if the parameter
* is not provided
*/
@Override
protected LayoutType getLayout() {
return this.layout;
}
/**
* Return the layout factory that will be used to determine the
* {@link AbstractPackagerMojo.LayoutType} if no explicit layout is set.
* @return the value of the {@code layoutFactory} parameter, or {@code null} if the
* parameter is not provided
*/
@Override
protected LayoutFactory getLayoutFactory() {
return this.layoutFactory;
}
@Override
public void execute() throws MojoExecutionException {
if (this.project.getPackaging().equals("pom")) {
getLog().debug("build-image goal could not be applied to pom project.");
return;
}
if (this.skip) {
getLog().debug("skipping build-image as per configuration.");
return;
}
buildImage();
}
private void buildImage() throws MojoExecutionException {
Libraries libraries = getLibraries(Collections.emptySet());
try {
DockerConfiguration dockerConfiguration = (this.docker != null) ? this.docker.asDockerConfiguration()
: new Docker().asDockerConfiguration();
BuildRequest request = getBuildRequest(libraries);
Builder builder = new Builder(new MojoBuildLog(this::getLog), dockerConfiguration);
builder.build(request);
}
catch (IOException ex) {
throw new MojoExecutionException(ex.getMessage(), ex);
}
}
private BuildRequest getBuildRequest(Libraries libraries) {
ImagePackager imagePackager = new ImagePackager(getArchiveFile(), getBackupFile());
Function content = (owner) -> getApplicationContent(owner, libraries, imagePackager);
Image image = (this.image != null) ? this.image : new Image();
if (image.name == null && this.imageName != null) {
image.setName(this.imageName);
}
if (image.builder == null && this.imageBuilder != null) {
image.setBuilder(this.imageBuilder);
}
if (image.runImage == null && this.runImage != null) {
image.setRunImage(this.runImage);
}
if (image.cleanCache == null && this.cleanCache != null) {
image.setCleanCache(this.cleanCache);
}
if (image.pullPolicy == null && this.pullPolicy != null) {
image.setPullPolicy(this.pullPolicy);
}
if (image.publish == null && this.publish != null) {
image.setPublish(this.publish);
}
if (image.network == null && this.network != null) {
image.setNetwork(this.network);
}
return customize(image.getBuildRequest(this.project.getArtifact(), content));
}
private TarArchive getApplicationContent(Owner owner, Libraries libraries, ImagePackager imagePackager) {
ImagePackager packager = getConfiguredPackager(() -> imagePackager);
return new PackagedTarArchive(owner, libraries, packager);
}
private File getArchiveFile() {
// We can use 'project.getArtifact().getFile()' because that was done in a
// forked lifecycle and is now null
File archiveFile = getTargetFile(this.finalName, this.classifier, this.sourceDirectory);
if (!archiveFile.exists()) {
archiveFile = getSourceArtifact(this.classifier).getFile();
}
if (!archiveFile.exists()) {
throw new IllegalStateException("A jar or war file is required for building image");
}
return archiveFile;
}
/**
* Return the {@link File} to use to back up the original source.
* @return the file to use to back up the original source
*/
private File getBackupFile() {
Artifact source = getSourceArtifact(null);
if (this.classifier != null && !this.classifier.equals(source.getClassifier())) {
return source.getFile();
}
return null;
}
private BuildRequest customize(BuildRequest request) {
request = customizeCreator(request);
return request;
}
private BuildRequest customizeCreator(BuildRequest request) {
String springBootVersion = VersionExtractor.forClass(BuildImageMojo.class);
if (StringUtils.hasText(springBootVersion)) {
request = request.withCreator(Creator.withVersion(springBootVersion));
}
return request;
}
/**
* {@link BuildLog} backed by Mojo logging.
*/
private static class MojoBuildLog extends AbstractBuildLog {
private static final long THRESHOLD = Duration.ofSeconds(2).toMillis();
private final Supplier log;
MojoBuildLog(Supplier log) {
this.log = log;
}
@Override
protected void log(String message) {
this.log.get().info(message);
}
@Override
protected Consumer getProgressConsumer(String message) {
return new ProgressLog(message);
}
private class ProgressLog implements Consumer {
private final String message;
private long last;
ProgressLog(String message) {
this.message = message;
this.last = System.currentTimeMillis();
}
@Override
public void accept(TotalProgressEvent progress) {
log(progress.getPercent());
}
private void log(int percent) {
if (percent == 100 || (System.currentTimeMillis() - this.last) > THRESHOLD) {
MojoBuildLog.this.log.get().info(this.message + " " + percent + "%");
this.last = System.currentTimeMillis();
}
}
}
}
/**
* Adapter class to expose the packaged jar as a {@link TarArchive}.
*/
static class PackagedTarArchive implements TarArchive {
static final long NORMALIZED_MOD_TIME = TarArchive.NORMALIZED_TIME.toEpochMilli();
private final Owner owner;
private final Libraries libraries;
private final ImagePackager packager;
PackagedTarArchive(Owner owner, Libraries libraries, ImagePackager packager) {
this.owner = owner;
this.libraries = libraries;
this.packager = packager;
}
@Override
public void writeTo(OutputStream outputStream) throws IOException {
TarArchiveOutputStream tar = new TarArchiveOutputStream(outputStream);
tar.setLongFileMode(TarArchiveOutputStream.LONGFILE_POSIX);
try {
this.packager.packageImage(this.libraries, (entry, entryWriter) -> write(entry, entryWriter, tar));
}
catch (RuntimeException ex) {
outputStream.close();
throw new RuntimeException("Error packaging archive for image", ex);
}
}
private void write(ZipEntry jarEntry, EntryWriter entryWriter, TarArchiveOutputStream tar) {
try {
TarArchiveEntry tarEntry = convert(jarEntry);
tar.putArchiveEntry(tarEntry);
if (tarEntry.isFile()) {
entryWriter.write(tar);
}
tar.closeArchiveEntry();
}
catch (IOException ex) {
throw new IllegalStateException(ex);
}
}
private TarArchiveEntry convert(ZipEntry entry) {
byte linkFlag = (entry.isDirectory()) ? TarConstants.LF_DIR : TarConstants.LF_NORMAL;
TarArchiveEntry tarEntry = new TarArchiveEntry(entry.getName(), linkFlag, true);
tarEntry.setUserId(this.owner.getUid());
tarEntry.setGroupId(this.owner.getGid());
tarEntry.setModTime(NORMALIZED_MOD_TIME);
if (!entry.isDirectory()) {
tarEntry.setSize(entry.getSize());
}
return tarEntry;
}
}
}
