Docker从入门到精通(十一)

小土豆Yuki

发布于 2023-09-02 15:50:04

1950

发布于 2023-09-02 15:50:04

文章被收录于专栏：洁癖是一只狗洁癖是一只狗

docker-compose 实战使用,集成编排Redis、MySQL、微服务，服务容器化

微服务项目搭建
微服务镜像构建
docker-compose 编排
数据库脚本执行
验证

微服务项目搭建

搭建一个小型项目,使用spring-boot,redis,mysql,mybatis,mybatis自动生成工具技术栈pom.xml文件依赖,spring-boot使用2.0.5.RELEASE版本,jdk1.8

https://github.com/nature-key/docker-service.git(项目地址)

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.54</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.2.0</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-core</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>io.projectreactor</groupId>
            <artifactId>reactor-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

mybaits自动生成代码mavan配置

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
                <configuration>
                    <mainClass>com.example.demo.DemoApplication</mainClass>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-release-plugin</artifactId>
                <version>2.5.3</version>
            </plugin>
            <plugin>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <skip>true</skip>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.mybatis.generator</groupId>
                <artifactId>mybatis-generator-maven-plugin</artifactId>
                <version>1.3.2</version>
                <configuration>
                    <configurationFile>src/main/resources/gen.xml</configurationFile>
                    <verbose>true</verbose>
                    <overwrite>true</overwrite>
                </configuration>
            </plugin>

        </plugins>
    </build>

gen.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration
        PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN"
        "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <!-- 数据库驱动:选择你的本地硬盘上面的数据库驱动包-->
    <classPathEntry  location="/Users/wangxuan/.m2/repository/com/mysql/mysql-connector-j/8.0.32/mysql-connector-j-8.0.32.jar"/>
    <context id="DB2Tables"  targetRuntime="MyBatis3Simple">
        <commentGenerator>
            <property name="suppressDate" value="true"/>
            <!-- 是否去除自动生成的注释 true：是 ：false:否 -->
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>
        <!--数据库链接URL，用户名、密码 -->
        <jdbcConnection driverClass="com.mysql.cj.jdbc.Driver" connectionURL="jdbc:mysql://172.17.0.2/mysql" userId="root" password="123456">
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false"/>
        </javaTypeResolver>
        <!-- 生成模型的包名和位置-->
        <javaModelGenerator targetPackage="com.example.demo.entity"
                            targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>
        <!-- 生成映射文件的包名和位置-->
        <sqlMapGenerator targetPackage="mapper"
                         targetProject="src/main/resources">
            <property name="enableSubPackages" value="true"/>
        </sqlMapGenerator>
        <!-- 生成DAO的包名和位置-->
        <javaClientGenerator type="XMLMAPPER"
                             targetPackage="com.example.demo.dao" targetProject="src/main/java">
            <property name="enableSubPackages" value="true"/>
        </javaClientGenerator>
        <!-- 要生成的表 tableName是数据库中的表名或视图名 domainObjectName是实体类名-->
        <table tableName="student"
               domainObjectName="StudentPO">

        </table>
    </context>
</generatorConfiguration>

建表语句,根据表自动生成mybait代码

create table student(
  id int(13),
  name varchar(255),
  pwd varchar(3)
);

服务配置application.yml

server:
  port: 80
spring:
  redis:
   #redis容器名称
    host: redis
    port: 6379
  datasource: 
   #ip使用mysql容器名称
    url: jdbc:mysql://mysql:3306/mysql?userSSL=false
    username: root
    password: 123456
    driver-class-name: com.mysql.jdbc.Driver
mybatis:
  mapper-locations:
    -  classpath:mapper/*.xml

接口实现

@RestController
public class DockerController {
    @Autowired
    StudentService studentService;

    @RequestMapping("/docker/{id}")
    public StudentPO getStudent(@PathVariable("id") Integer id) {
        return studentService.getStudent(id);
    }

    @PostMapping("/docker/add")
    public void addStudent(@RequestBody StudentPO studentPO) {
        studentService.addStudent(studentPO);
    }
}

微服务镜像构建

把微服务进行打包

编写Dockerfile文件

# 基础镜像使用java8，需要先构建
FROM java:8
# 作者
MAINTAINER wuyi
# 容器卷，指定临时文件的目录为/tmp
VOLUME /tmp
# 指定工作目录
WORKDIR /tmp
# 重命名可选操作，方便docker ps查看
add demo-0.0.1-SNAPSHOT.jar  docker_service.jar
# 运行jar包
ENTRYPOINT ["java", "-jar", "docker_service.jar"]
# 暴露80端口作为服务端口
EXPOSE 80

jar包和dockerfile放到一个目录下,构建镜像

$ ls(同一个目录下)
Dockerfile        demo-0.0.1-SNAPSHOT.jar
$ docker build -t docker_service:1.0 . (docker进行构建，-t指定标签)
$ docker images docker_service (查看构建结果)
REPOSITORY       TAG       IMAGE ID       CREATED        SIZE
docker_service   1.0       4bd38dc72cbb   10 hours ago   672MB

docker-compose 编排

docker-composer.yml

version: "3"
services:
  macro_server:
    image: docker_service:1.0
    container_name: docker_service
    ports:
      - "8081:80"
    volumes:
      - /Users/wuyi/Downloads/docker/data:/data
    # 依赖于redis和mysql，在启动本服务之前会先启动依赖的服务
    depends_on:
      - redis
      - mysql
  # Redis服务
  redis:
    container_name: redis
    image: redis:latest
    ports:
      - "6379:6379"
    volumes:
      - /Users/wuyi/Downloads/docker/redis/redis.conf:/etc/redis/redis.conf
      - /Users/wuyi/Downloads/docker/redis/data:/data
    command: redis-server /etc/redis/redis.conf
  # MySQL服务，上面的构建服务直接拷贝下来即可
  mysql:
    container_name: mysql
    image: mysql:5.6
    ports:
      - "3307:3306"
    environment:
      MYSQL_ROOT_PASSWORD: '123456'
      MYSQL_ALLOW_EMPTY_PASSWORD: 'no'
      MYSQL_DATABASE: 'mysql'
      MYSQL_USER: 'admin'
      MYSQL_PASSWORD: 'admin'
    volumes:
      - /Users/wuyi/Downloads/docker/mysql/data:/var/lib/mysql
      - /Users/wuyi/Downloads/docker/mysql/conf:/etc/mysql
    command: --default-authentication-plugin=mysql_native_password

直接启动服务

$ ls
data            docker-compose.yml  mysql           redis           service         tmp
$ docker compose up (启动)
$ docker ps (查看服务是否启动)
CONTAINER ID   IMAGE                             COMMAND                  CREATED        STATUS          PORTS                    NAMES
86d8fdd2e022   docker_service:1.0                "java -jar docker_se…"   10 hours ago   Up 20 seconds   0.0.0.0:8081->80/tcp     docker_service
dd5dbec730e9   mysql:5.6                         "docker-entrypoint.s…"   10 hours ago   Up 21 seconds   0.0.0.0:3307->3306/tcp   mysql
72aabd353c52   redis:latest                      "docker-entrypoint.s…"   10 hours ago   Up 21 seconds   0.0.0.0:6379->6379/tcp   redis

数据库脚本执行

由于我们的数据库是新建的容器，脚本还没有生成，此时我们可以连接容器执行脚本,使用默认的数据库mysql,执行下面脚本

create table student(
  id int(13),
  name varchar(255),
  pwd varchar(3)
);

验证服务是否在正常

查看redis是否有正产缓存数据

$ docker exec -it 72aabd353c52 bash
root@72aabd353c52:/data# redis-cli
127.0.0.1:6379> get 1
"{\"id\":1,\"name\":\"test\",\"pwd\":\"123\"}"

本文参与腾讯云自媒体分享计划，分享自微信公众号。

原始发表：2023-04-09，如有侵权请联系 cloudcommunity@tencent.com 删除

数据库

本文分享自洁癖是一只狗微信公众号，前往查看

如有侵权，请联系 cloudcommunity@tencent.com 删除。

本文参与腾讯云自媒体分享计划，欢迎热爱写作的你一起参与！

登录后参与评论

0 条评论

热度

Docker从入门到精通(十一)

Docker从入门到精通(十一)

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐