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//docker 配置信息
ext {
docker = [
registry : 'xx.xxx.xxx',
projectName: 'hello',
imageName : project.name,
apiUsername: 'xxx',
apiPassword: 'xxx'
]
}
/**
* 构建 镜像
*/
task buildImage(dependsOn: build) {
ext.image = "${project.docker.registry}/${project.docker.projectName}/${project.docker.imageName}"
doLast {
println '执行开始'
File buildDir = new File(".")
//复制生成的文件
File source = jar.outputs.files.getFiles()[0]
File target = new File(buildDir, source.name)
target << source.bytes
//生成Dockerfile文件
def data = """FROM openjdk:8-jdk-alpine
MAINTAINER lilei
VOLUME /tmp
ADD ${source.name} app.jar
ENV JAVA_OPTS=\'\'
ENTRYPOINT exec java \$JAVA_OPTS -Djava.security.egd=file:/dev/./urandom -jar /app.jar
"""
println data
File file = new File(buildDir, 'Dockerfile')
file.withWriter('utf-8') {
writer -> writer.writeLine data
}
//docker build -t ${IMAGE}:${VERSION} .
//docker tag ${IMAGE}:${VERSION} ${IMAGE}:latest
def cmdLine = ['docker', 'build', '-t', "${buildImage.image}:${project.docker.tag}", buildDir.toString()]
//清理文件
target.delete()
file.delete()
//生成latest版本
cmdLine = ['docker', 'tag', "${buildImage.image}:${project.version}", "${buildImage.image}:latest"]
executeAndWait(cmdLine)
//清理空版本号的镜像
//获取none版本镜像
try {
Process process = "docker images -f dangling=true -q".execute()
String useless = process.in.text
if (!useless.isEmpty()) {
cmdLine = ['docker', 'rmi']
cmdLine.addAll(useless.split("\n"))
//执行删除
executeAndWait(cmdLine)
}
} catch (Exception e) {
println '清理none版本镜像出错'
}
println '执行完成'
}
}
/**
* 推送镜像
*/
task pushImage(dependsOn: buildImage) {
doLast {
//登录
def cmdLine = ['docker', 'login', project.docker.registry, "-u", project.docker.apiUsername, '-p', project.docker.apiPassword]
executeAndWait(cmdLine)
def image = buildImage.image
//推送
cmdLine = ['docker', 'push', "${image}:${project.version}"]
executeAndWait(cmdLine)
//推送latest版本
cmdLine = ['docker', 'push', "${image}:latest"]
executeAndWait(cmdLine)
}
}
/**
* 执行命令
* @param cmdLine
* @return
*/
private static String executeAndWait(List<String> cmdLine) {
println("命令行:${cmdLine}")
println '------------shell输出------------'
def process = cmdLine.execute()
process.waitForProcessOutput(System.out, System.err)
println '-------------输出结束--------------'
if (process.exitValue()) {
throw new GradleException("执行命令出错 \nCommand line [${cmdLine}]")
}
return "success"
}
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