一、Docker-compse安装

下载docker-compose

sudo curl -L "https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

授权

chmod 777 /usr/local/bin/docker-compose

查看版本

[root@192 ~]# docker-compose version
docker-compose version 1.24.1, build 4667896b
docker-py version: 3.7.3
CPython version: 3.6.8
OpenSSL version: OpenSSL 1.1.0j  20 Nov 2018

二、准备java项目

1. 创建springboot项目

pom文件

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.5.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.example</groupId><artifactId>docker_images</artifactId><version>0.0.1-SNAPSHOT</version><name>docker_images</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!-- swagger --><!-- https://mvnrepository.com/artifact/io.springfox/springfox-swagger-ui --><dependency><groupId>com.github.xiaoymin</groupId><artifactId>swagger-bootstrap-ui</artifactId><version>1.9.6</version></dependency><dependency><groupId>io.springfox</groupId><artifactId>springfox-swagger2</artifactId><version>2.9.2</version></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope><exclusions><exclusion><groupId>org.junit.vintage</groupId><artifactId>junit-vintage-engine</artifactId></exclusion></exclusions></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

配置swagger和编写测试接口


## 1. 引入swagger是方便测试
package com.example.docker_images.config;import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;/*** @author Javacfox*/
@Configuration
@EnableSwagger2
public class Swagger2Config {/*** 设置swagger跨域，提供给service调用* @return*/@Beanpublic WebMvcConfigurer crossConfigurer(){WebMvcConfigurer webMvcConfigurerAdapter = new WebMvcConfigurer() {@Overridepublic void addCorsMappings(CorsRegistry registry) {registry.addMapping("/v2/api-docs");registry.addMapping("/**");}};return webMvcConfigurerAdapter;}@Beanpublic Docket createRestApi(){return new Docket(DocumentationType.SWAGGER_2).apiInfo(apiInfo()).select()//基础扫描包路径.apis(RequestHandlerSelectors.basePackage("com.example.docker_images.controller")).paths(PathSelectors.any()).build();}private ApiInfo apiInfo(){return new ApiInfoBuilder().title("java").description("java项目打包成docker images并运行").version("1.0.0").build();}private CorsConfiguration buildConfig() {CorsConfiguration corsConfiguration = new CorsConfiguration();// 1允许任何域名使用corsConfiguration.addAllowedOrigin("*");// 2允许任何头corsConfiguration.addAllowedHeader("*");// 3允许任何方法（post、get等）corsConfiguration.addAllowedMethod("*");return corsConfiguration;}@Beanpublic CorsFilter corsFilter() {UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();source.registerCorsConfiguration("/**", buildConfig());return new CorsFilter(source);}}# 2. 接口编写
package com.example.docker_images.controller;import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@RequestMapping("/hello")
public class HelloController {@GetMapping("/sayHello")public String say(String userName){return "hello,"+userName+"!";}
}# 3. 主类
package com.example.docker_images;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;@SpringBootApplication
public class DockerImagesApplication {public static void main(String[] args) {SpringApplication.run(DockerImagesApplication.class, args);}}

上面是所有的java项目，非常简单，目前只是为了测试。

2. 编写dockerFile、docker-compose.yml文件

dockerFile

# 以jdk8为基础镜像
FROM openjdk:8
# 描述
LABEL description="Java 8"# 暴露接口
EXPOSE 8088
# 将主机中的jar包添加到镜像中
ADD /docker_images-0.0.1-SNAPSHOT.jar docker_images-0.0.1-SNAPSHOT.jar
# 运行jar包
ENTRYPOINT ["java", "-jar","docker_images-0.0.1-SNAPSHOT.jar"]

docker-compose.yml

version: '3'
services:test:container_name: java_test #配置容器名build:context: .dockerfile: DockerFile #指定dockerFile文件image: java/test:8.0.0 # 指定镜像名ports:- "8088:8088" # 暴露端口volumes:- /logs:/logs # 创建容器数据卷

3. 创建并运行镜像

上传文件到服务器：/root/docker-image
到服务器命令台


[root@192 ~]# cd /root/docker_image
[root@192 docker_image]# ll
total 26384
-rw-r--r--. 1 root root      217 Nov 15 20:08 docker-compose.yml
-rw-r--r--. 1 root root      188 Nov 15 04:32 DockerFile
-rw-r--r--. 1 root root 27005222 Nov 12 10:27 docker_images-0.0.1-SNAPSHOT.jar
[root@192 docker_image]# docker-compose build
Building test
Step 1/5 : FROM openjdk:8
Trying to pull repository docker.io/library/openjdk ...
8: Pulling from docker.io/library/openjdk
e4c3d3e4f7b0: Pull complete
101c41d0463b: Pull complete
8275efcd805f: Pull complete
751620502a7a: Pull complete
a59da3a7d0e7: Pull complete
5ad32ac1e527: Pull complete
7ee60316f31a: Pull complete
Digest: sha256:44713efa363430c6d991f59bbc47238838ecf09a2df4dfb8bbbb07a55f8aeeae
Status: Downloaded newer image for docker.io/openjdk:8---> 192ceee8f2fd
Step 2/5 : LABEL description "Java 8"---> Running in 4b14bbeddd1d---> 1b5324a856ad
Removing intermediate container 4b14bbeddd1d
Step 3/5 : EXPOSE 8088---> Running in e08c74d7f0dd---> bb0a7991cb0e
Removing intermediate container e08c74d7f0dd
Step 4/5 : ADD /docker_images-0.0.1-SNAPSHOT.jar docker_images-0.0.1-SNAPSHOT.jar---> 8fa5fc5834ff
Removing intermediate container 32c95ff2d8a0
Step 5/5 : ENTRYPOINT java -jar docker_images-0.0.1-SNAPSHOT.jar---> Running in c40f5144492f---> b7258eff2bc4
Removing intermediate container c40f5144492f
Successfully built b7258eff2bc4
[root@192 docker_image]# docker-compose up -d
Creating java_test ... done
[root@192 docker_image]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
61551d9dbee7        java/test:8.0.0     "java -jar docker_..."   7 seconds ago       Up 7 seconds        0.0.0.0:8088->8088/tcp   java_test

步骤解说：

进入到jar包所在文件目录
创建镜像：docker-compose build
运行镜像：docker-compose up -d

三、访问测试

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docker-compose部署java项目

一、Docker-compse安装

二、准备java项目

1. 创建springboot项目

2. 编写dockerFile、docker-compose.yml文件

3. 创建并运行镜像

三、访问测试

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