『高级篇』docker之微服务服务docker化(18)
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这次进入微服务的部署,代码也基本都通过了。如果比做一首歌曲的话,前奏已经结束,现在开始我们的高潮部分,如果吧我们的服务使用docker,使用服务编排工具,把项目给部署运行起来。源码:https://github.com/limingios/msA-docker
注意
因docker话都是在linux环境,为了方便编写dockerfile文件,我切换到mac本上进行演示,目的只有一个方便开发sh。方便使用。CICD学习实践首选电脑还是mac。
微服务部署
- 服务docker化,可以在docker下运行。
- Docker仓库创建,docker创建的镜像push到仓库里面。
- 构建高可用的集群环境,Mesos,Swarm,kubernetes。运行这3个服务编排工具把我们的服务运行和编排起来。可以优雅的启动,停止,扩充容,故障的恢复。
docker化
服务有个适合的环境,服务可以运行起来,给他准备一个环境,比如服务是个种子,我们需要准备一片土地,服务是一条鱼,就需要准备一片大海。源码中的服务有一个是python写的,有一个是java写的,也就是需要2个运行环境,一个基于java,一个基于python。
-
java镜像
>去hub.docker.com 搜索java,找到tag
-
下载java镜像
>先配置加速,https://www.daocloud.io/mirror
docker pull java:openjdk-8 docker images|grep jdk
- 安装jdk容器
docker run -it --entrypoint bash java:openjdk-8 java -version
开始dockerfile的开发
熟悉docker的老铁应该都知道,如果要编译docker的话需要docker化,首选需要开发dockerfile文件。
- 准备工作
文件中不能有写死的情况,如果写死了,每次服务的变更都需要变更镜像。为了减少构建镜像的过程,尽量吧数据库的访问地址,经常会发生变化的东西,需要踢出去,不要在配置文件中配置死,针对数据库的访问,不能地址直接写死,mysql的地址,当服务运行在docker之后,他的ip是实时都在变化的,不能写死在镜像里,直接就找不到了就报错了。还有个问题,我们的服务以什么样的形式放在我们docker里面,springboot之所以说适用于微服务,他有个很大的好处,它可以将咱们的服务构建成一个fat jar,只有一个jar包,然后通过java的一个命令:java -jar 文件.jar 运行起来,这种方式对于微服务来说也是很友好的,也非常的简单,就使用这种方式来做。变量的方式就可以通过springboot –mysql.address 就可以传递进来了。
- 构建user-thrift-service
修改配置文件 和 pom.xml文件
application.properties
service.name=user-thrift-service service.port=7911 #数据源的配置 spring.datasource.url=jdbc:mysql://{mysql.address}:3306/db_user spring.datasource.username=root spring.datasource.password=root spring.datasource.driver-class-name=com.mysql.jdbc.Driver
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"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.3.RELEASE</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.idig8</groupId> <artifactId>user-thrift-service</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.apache.thrift</groupId> <artifactId>libthrift</artifactId> <version>0.10.0</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>user-thrift-service-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>
Dockfile编写
FROM java:openjdk-8 MAINTAINER liming www.idig8.com COPY target/user-thrift-service-1.0-SNAPSHOT.jar /user-thrift-service.jar ENTRYPOINT ["java","-jar","/user-thrift-service.jar"]
执行build生成镜像
docker build -t user-thrift-service:latest .
查看ip地址
ifconfig
生成容器
docker run -it user-thrift-service:latest --mysql.address=192.168.1.140
新建立build.sh
#!/usr/bin/env bash mvn package docker build -t user-thrift-service:latest .
-
构建message-thrift-python-service
>后面很多的服务,都依赖它,必须把它做好。它是一个python的服务,我们需要找一个python的镜像。去官方找吧
docker pull python:3.6 docker images|grep python
编写Dockerfile
FROM python:3.6 MAINTAINER liming www.idig8.com RUN pip install thrift ENV PYTHONPATH / COPY message /message ENTRYPOINT ["python","/message/message_service.py"]
docker build -t message-thrift-python-service:latest .
build开发
#!/usr/bin/env bash docker build -t message-thrift-python-service:latest .
镜像生成容器
docker run -it message-thrift-python-service:latest
-
构建user-edge-service
>微服务的依赖,了解docker的老铁应该知道可以通过link的方式,去根据名字搜索到这个服务,只要不在开发范围内的,认为是通过另外的介入方式ip,域名的方式。通过docker分为2种情况,微服务和微服务之间的通信,微服务和外围系统的通信。
修改配置文件 和 pom.xml文件
application.properties
server.name=user-edge-service server.port=8082 thrift.user.ip=user-thrift-service thrift.user.port=7911 thrift.message.ip=message-thrift-python-service thrift.message.port=9090 #redis config spring.redis.host=${redis.address} spring.redis.port=6379 spring.redis.password=liming spring.redis.timeout=30000
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"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.3.RELEASE</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.idig8</groupId> <artifactId>user-edge-service</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.apache.thrift</groupId> <artifactId>libthrift</artifactId> <version>0.10.0</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>user-thrift-service-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>message-thrift-service-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-redis</artifactId> </dependency> <dependency> <groupId>commons-lang</groupId> <artifactId>commons-lang</artifactId> <version>2.6</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-thymeleaf</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>
Dockerfile编写
FROM java:openjdk-8 MAINTAINER liming www.idig8.com COPY target/user-edge-service-1.0-SNAPSHOT.jar /user-edge-service.jar ENTRYPOINT ["java","-jar","/user-edge-service.jar"]
build.sh 编写
#!/usr/bin/env bash mvn package docker build -t user-edge-service:latest .
sh build.sh
创建容器
docker run -it user-edge-service:latest --redis.address=192.168.1.140
- 构建course-dubbo-service
微服务的依赖,了解docker的老铁应该知道可以通过link的方式,去根据名字搜索到这个服务,只要不在开发范围内的,认为是通过另外的介入方式ip,域名的方式。通过docker分为2种情况,微服务和微服务之间的通信,微服务和外围系统的通信。
修改配置文件 和 pom.xml文件
application.properties
#dubbo 配置 spring.dubbo.application.name=course-dubbo-service spring.dubbo.registry.address=zookeeper://${zookeeper.address}:2181 spring.dubbo.protocol.name=dubbo spring.dubbo.protocol.port=20880 #spring.dubbo.protocol.host=127.0.0.1 spring.dubbo.scan=com.idig8.course #数据源的配置 spring.datasource.url=jdbc:mysql://${mysql.address}:3306/db_course spring.datasource.username=root spring.datasource.password=root spring.datasource.driver-class-name=com.mysql.jdbc.Driver thrift.user.ip=user-thrift-service thrift.user.port=7911
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"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.3.RELEASE</version> </parent> <modelVersion>4.0.0</modelVersion> <groupId>com.idig8</groupId> <artifactId>course-dubbo-service</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>io.dubbo.springboot</groupId> <artifactId>spring-boot-starter-dubbo</artifactId> <version>1.0.0</version> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</artifactId> </dependency> <dependency> <groupId>org.apache.thrift</groupId> <artifactId>libthrift</artifactId> <version>0.10.0</version> </dependency> <dependency> <groupId>org.mybatis.spring.boot</groupId> <artifactId>mybatis-spring-boot-starter</artifactId> <version>1.3.1</version> </dependency> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.44</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>course-dubbo-service-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>user-thrift-service</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>com.idig8</groupId> <artifactId>user-thrift-service-api</artifactId> <version>1.0-SNAPSHOT</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> </plugin> </plugins> </build> </project>
Dockerfile编写
FROM java:openjdk-8 MAINTAINER liming www.idig8.com COPY target/course-dubbo-service-1.0-SNAPSHOT.jar /course-dubbo-service.jar ENTRYPOINT ["java","-jar","/course-dubbo-service.jar"]
build.sh 编写
#!/usr/bin/env bash mvn package docker build -t course-dubbo-service:latest .
sh build.sh
创建容器
docker run -it course-dubbo-service:latest --redis.address=192.168.1.140 --zookeeper.address=192.168.1.140
-
构建course-edge-service
>跟之间的基本是一样的,都是重复的工作。直接看源码吧
- 修改pom文件增加maven构建
- 增加dockerfile文件
- 增加build.sh文件
- 资源文件的修改
docker run -it course-edge-service:latest --zookeeper.address=192.168.1.140
docker run -it gataway-zuul:latest
PS:把所有单独的服务,做成了镜像,下次想个办法服务和镜像统一的运行起来。
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