docker - 使用Intellij在Spring Boot中使用Gradle构建Docker镜像

Question

我有以下dockerfile。

FROM openjdk:8-jdk-alpine
VOLUME /tmp
ARG JAR_FILE
ADD ${JAR_FILE} app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

这是build.gradle。

buildscript {
    ext {
        springBootVersion = '2.0.0.RELEASE'
    }
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
        classpath('se.transmode.gradle:gradle-docker:1.2')
    }
}

apply plugin: 'java'
sourceCompatibility = 1.8
targetCompatibility = 1.8
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
apply plugin: 'docker'



bootJar {
    baseName = 'gs-spring-boot-docker'
    version =  '0.1.0'
}


group = 'com.pai'
version = '0.0.1-SNAPSHOT'

task buildDocker(type: Docker, dependsOn: build){
    push = true
    applicationName = jar.baseName
    dockerfile = file('src/main/docker/Dockerfile')
    doFirst {
        copy {
            from jar
            into stageDir
        }
    }
}

repositories {
    mavenCentral()
}


dependencies {
    compile 'org.springframework.boot:spring-boot-starter-data-jpa'
    compile 'mysql:mysql-connector-java'
    compile group: 'org.apache.commons', name: 'commons-io', version: '1.3.2'
    compile('org.springframework.boot:spring-boot-starter-security')
    compile('org.springframework.boot:spring-boot-starter-web')
    testCompile('org.springframework.boot:spring-boot-starter-test')
    testCompile('org.springframework.security:spring-security-test')
}

build.gradle的进程同步成功。
当我运行以下命令时。

sudo ./gradlew build buildDocker

我收到以下错误消息。

Execution failed for task ':buildDocker'.
> Docker execution failed
  Command line [docker push com.pai/pai201808:0.0.1-SNAPSHOT] returned:
  Get https://com.pai/v2/: dial tcp: lookup com.pai on 127.0.1.1:53: no such host

我认为这可能是导入错误或配置的dockerfile无效的问题。我怎么解决这个问题？

Answer 1

Gradle脚本尝试将Docker镜像推送到不存在的存储库。您打算这样做吗？如果不是，则只需设置push = false。

如果要将图像推送到某个存储库，则必须对其进行设置。您必须检查将镜像推送到所需存储库的特定于插件的设置。

更多信息:
Creating new repository on Docker Hub，Setting up own registry