问题

我需要将我的项目放入容器中。我使用 Intellij idea，并且所有的命令我都是在Intellij的终端中输入的。我使用的命令如下：

$ mvn package
$ docker build -f Dockerfile -t week10 .

镜像 hello-world 正常工作。
我创建了可执行的jar文件和Dockerfile。当我输入命令创建镜像时，我收到以下错误信息：

> 在连接期间发生错误：发布
> http://%2F%2F.%2Fpipe%2Fdocker_engine/v1.40/build?buildargs=%7B%7D&cachefrom=%5B%5D&cgroupparent=&cpuperiod=0&cpuquota=0&cpusetcpus=&cpusetmems=&cpushares=0&do
> ckerfile=Dockerfile&labels=%7B%7D&memory=0&memswap=0&networkmode=default&rm=1&session=jauqgloaecpwv5hch49bgfcak&shmsize=0&t=week10&target=&ulimits=null&version=1：
> 打开 //./pipe/docker_en gine：系统找不到指定的文件。
> 在Windows上的默认守护程序配置中，必须以提升的权限运行docker
> 客户端以进行连接。此错误还可能表示
> docker 守护程序未在运行。

Dockerfile:

FROM openjdk:8-jdk-alpine
ADD target/week10-1.0-SNAPSHOT.jar week10.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","week10.jar"]

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>org.example</groupId>
    <artifactId>week10</artifactId>
    <version>1.0-SNAPSHOT</version>
    <packaging>jar</packaging>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>2.2.6.RELEASE</version>
                <configuration>
                    <finalName>week10</finalName>
                    <mainClass>com.fruitshop.Application</mainClass>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

    <properties>
        <start-class>com.fruitshop.Application</start-class>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
    </dependencies>
</project>

你可以在这里查看我的整个项目：Project

我不知道我做错了什么。请指出问题所在以及如何解决。

$ mvn package
$ docker build -f Dockerfile -t week10 .

FROM openjdk:8-jdk-alpine
ADD target/week10-1.0-SNAPSHOT.jar week10.jar
EXPOSE 8080
ENTRYPOINT ["java","-jar","week10.jar"]

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>week10</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>jar</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>2.2.6.RELEASE</version>
<configuration>
<finalName>week10</finalName>
<mainClass>com.fruitshop.Application</mainClass>
</configuration>
<executions>
<execution>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
<properties>
<start-class>com.fruitshop.Application</start-class>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
</dependencies>
</project>

答案1

得分: 1

错误不是由于 Dockerfile，而是与以下部分相关：

> 在 Windows 上默认的守护程序配置中，docker 客户端必须以提升权限运行才能连接

您可以按照以下步骤切换 Docker 守护程序：

1. 以管理员身份打开 Powershell
2. 运行以下命令：

cd "C:\Program Files\Docker\Docker" ./DockerCli.exe -SwitchDaemon

答案2

得分: 1

我解决了这个错误。如果你遇到相同的错误，你需要在终端中输入以下命令：

Docker-machine env default

然后你需要输入在屏幕上显示的设置，例如：

SET DOCKER_HOST=tcp://192.168.99.100:2376
SET DOCKER_CERT_PATH=<你的主目录路径>\.docker\machine\machines\default
SET DOCKER_MACHINE_NAME=default
SET COMPOSE_CONVERT_WINDOWS_PATHS=true```
<details>
<summary>英文:</summary>
I resolved this error. If you have the same error, you need to enter this command in the terminal: 
``` Docker-machine env default```
and then you need to enter the sets, that you have displayed on the screen, example:
```SET DOCKER_TLS_VERIFY=1
SET DOCKER_HOST=tcp://192.168.99.100:2376
SET DOCKER_CERT_PATH=&lt;your home path&gt;\.docker\machine\machines\default
SET DOCKER_MACHINE_NAME=default
SET COMPOSE_CONVERT_WINDOWS_PATHS=true```
</details>