Spring Boot与Docker部署详解

Z时代
2024-01-10
分类：IT

本文介绍了Spring Boot" title="Spring Boot">Spring Boot与Docker部署，分享给大家，希望对大家有帮助

开启Docker远程访问

首先需要开启docker远程访问功能，以便可以进行远程操作。

CentOS 6

修改/etc/default/docker文件，重启后生效（service docker restart）。


DOCKER_OPTS="-H=unix:///var/run/docker.sock -H=0.0.0.0:2375"

CentOS 7

打开/usr/lib/systemd/system/docker.service文件，修改ExecStart这行。

ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock

重启后生效

systemctl daemon-reload

systemctl restart docker.service

测试是否生效

curl http://127.0.0.1:2375/info

新建Maven工程

pom.xml配置如下:


<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>test.springboot.docker</groupId>
  <artifactId>docker-springboot</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
  </parent>
  <properties>
    <java.version>1.8</java.version>
  </properties>
  <dependencies>
    <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>
  </dependencies>
  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
      <plugin>
        <groupId>com.spotify</groupId>
        <artifactId>docker-maven-plugin</artifactId>
        <version>0.4.14</version>
        <configuration>
          <imageName>${docker.image.prefix}/${project.artifactId}</imageName>
          <dockerDirectory>src/main/docker</dockerDirectory>
          <dockerHost>http://192.168.1.200:2375</dockerHost>
          <resources>
            <resource>
              <targetPath>/</targetPath>
              <directory>${project.build.directory}</directory>
              <include>${project.build.finalName}.jar</include>
            </resource>
          </resources>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

imageName：指定了镜像的名字

dockerDirectory：指定Dockerfile的位置

dockerHost：指定Docker远程API地址

resources：指那些需要和Dockerfile放在一起，在构建镜像时使用的文件，一般应用jar包需要纳入

创建Java类


package hello;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@SpringBootApplication
@RestController
public class Application {
  @RequestMapping("/")
  public String home() {
    return "Hello Docker World";
  }
  public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
  }
}