spring cloud + docker + k8s + k8s注册中心部署微服务集群

梦里梦外; 2023-03-03 06:21 1阅读 0赞

# 1. 添加docker插件 #

在pom.xml中添加如下配置：

<plugin>
                    <groupId>com.spotify</groupId>
                    <artifactId>dockerfile-maven-plugin</artifactId>
                    <version>${dockerfile-maven-version}</version>
                    <executions>
                        <execution>
                            <id>default</id>
                            <goals>
                                <goal>build</goal>
                                <goal>push</goal>
                            </goals>
                        </execution>
                    </executions>
                    <configuration>
                        <repository>${docker.image.prefix}/${project.artifactId}</repository>
                        <tag>${project.version}</tag>
                        <buildArgs>
                            <JAR_FILE>${project.build.finalName}.jar</JAR_FILE>
                        </buildArgs>
                    </configuration>
                </plugin>

# 2. 添加dockerfile #

FROM openjdk:11-jre
    ARG JAR_FILE
    ENV PROFILE default
    ENV JAVA_OPTS -server
    ENTRYPOINT java -Dspring.profiles.active=${ PROFILE} -Duser.timezone=Asia/Shanghai ${ JAVA_OPTS} -jar /usr/share/app.jar
    EXPOSE 8001
    ADD target/${ JAR_FILE} /usr/share/app.jar

# 3 添加k8s注册中心依赖 #

<dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-kubernetes-all</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-starter-loadbalancer</artifactId>
            </dependency>

loadbalancer依赖要加上，否则会发现不了服务

# 4 编译并生成镜像 #

mvn package -DskipTests dockerfile:push

# 5 部署到k8s #

deployment=gateway
    deploy_server=192.168.1.82
    
    ssh root@$deploy_server kubectl --namespace=dev scale deployment $deployment --replicas 0
    ssh root@$deploy_server kubectl --namespace=dev scale deployment $deployment --replicas 1