本項目微服務採用SpringBoot開發,將每一個微服務工程打成Jar包,最終在Docker容器中運行jar,部署流程以下java
使用IDEA搭建SpringBoot工程,將下邊的插件依賴拷貝到微服務工程中web
<plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin>
完整的spring-docker工程pom.xml文件以下spring
<?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>2.1.9.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>docker</artifactId> <version>0.0.1-SNAPSHOT</version> <name>docker</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> <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> </plugins> </build> </project>
在工程目錄運行:mvn clear package或經過IDEA執行clear package打包命令,打包成功,以下圖:
將上一步的jar包拷貝到Linux服務器,準備建立鏡像。
測試jar包是否能夠運行,執行:java -jar docker-0.0.1-SNAPSHOT.jardocker
在docker-0.0.1-SNAPSHOT.jar位置編寫Dockerfile文件
Dockerfile內容爲apache
FROM java:8 ADD docker-0.0.1-SNAPSHOT.jar /docker-test.jar EXPOSE 9000 ENTRYPOINT ["java","-jar","/docker-test.jar"]
在Dockerfile文件所在目錄執行服務器
docker build -t docker-test:0.0.1 .
鏡像建立成功,查詢鏡像maven
docker images
建立啓動容器spring-boot
docker run -d -p 9000:9000 docker-test:0.0.1
容器啓動完成能夠經過docker ps 查詢正在運行中的容器
查看項目運行日誌
到此手動構建鏡像部署項目完成微服務
maven提供docker-maven-plugin插件可完成從打包到構建鏡像、構建容器等過程。測試
1)編寫pom_docker.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 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>2.1.9.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.example</groupId> <artifactId>docker</artifactId> <version>0.0.1-SNAPSHOT</version> <name>docker</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> <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>1.0.0</version> <!--docker鏡像相關的配置信息--> <configuration> <!--鏡像名,這裏用工程名--> <imageName>${project.artifactId}‐${project.version}</imageName> <!--Dockerfile文件所在目錄--> <dockerDirectory>${project.basedir}/src/main/resources</dockerDirectory> <!--TAG,這裏用工程版本號--> <imageTags> <imageTag>${project.version}</imageTag> </imageTags> <imageName>${project.artifactId}:${project.version}</imageName> <!--構建鏡像的配置信息--> <resources> <resource> <targetPath>/</targetPath> <directory>${project.build.directory}</directory> <include>${project.artifactId}‐${project.version}.jar</include> </resource> </resources> </configuration> </plugin> </plugins> </build> </project>
2)將Dockerfile文件拷貝到src/main/resource下
3)刪除以前建立的docker-test鏡像
docker rmi -f docker-test:0.0.1
4)進入工程根目錄(pom_docker.xml所在目錄)執行,便可建立成功鏡像
mvn ‐f pom_docker.xml clean package ‐DskipTests docker:build