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阿里云集群开启debug

news 来源：原创 2025/6/19 14:29:29

1、安装 kubectl

Macos

brew install kubectl

Windows：

https://kubernetes.io/zh-cn/docs/tasks/tools/install-kubectl-windows/

下载后，放到任意目录

2、配置连接信息

mac

将以下内容复制到计算机 $HOME/.kube/config 文件下:

windows

不同集群配置不同的配置文件(.kube文件夹不存在则手动创建)

C:\Users\xxxx\.kube\config_prod

C:\Users\xxxx\.kube\config_test

端口映射时，指定配置文件即可

kubectl.exe --kubeconfig C:\Users\xxx\.kube\config_prod port-forward -n  cluster pod/podname 10091:10091

3、开启debug 端口

服务启动脚本中增加以下内容：entrypoint.sh

#/bin/bashJAVA_DUMP_OPTS="-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/annengdata/logs/"
if [ ${REMOTE_DEBUG_ENABLED} == "true" ]; thenJAVA_DEBUG_OPTS="-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=*:${REMOTE_DEBUG_PORT}"
elseJAVA_DEBUG_OPTS=""
fiNACOS_OPTS="-Dnacos.host=${NACOS_HOST}-Dnacos.port=${NACOS_PORT}-Dnacos.username=${NACOS_USERNAME}-Dnacos.password=${NACOS_PASSWORD}-Dnacos.discovery.namespace=${NACOS_DISCOVERY_NAMESPACE}-Dnacos.discovery.group=${NACOS_DISCOVERY_GROUP}-Dnacos.config.namespace=${NACOS_CONFIG_NAMESPACE}-Dnacos.config.group=${NACOS_CONFIG_GROUP}"
# springboot 启动命令
echo java ${JAVA_DEBUG_OPTS} ${NACOS_OPTS} ${JAVA_HEAP_OPTS} ${JAVA_DUMP_OPTS} -jar /usr/finance-open-gateway/finance-open-gateway.jar
exec java ${JAVA_DEBUG_OPTS} ${NACOS_OPTS} ${JAVA_HEAP_OPTS} ${JAVA_DUMP_OPTS} -jar /usr/finance-open-gateway/finance-open-gateway.jar

4、端口暴露

5、端口映射

-- by pod

kubectl port-forward -n finance-management-test pod/finance-measurement-7cdf8df894-kbkkv 10091:10091

-- by service

kubectl port-forward -n finance-management-dev service/finance-portal-svc 18181:port-18181

6、debug 测试

dockerfile示例

FROM harbor.chintanneng.com/library/anneng-jdk17:1.0
USER 0
RUN mkdir -p /annengdata/logs \
&& mkdir /usr/finance-open-gateway \
&& ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtimeCOPY ../entrypoint.sh /usr/finance-open-gateway/entrypoint.sh
COPY ./finance-open-gateway-application/target/finance-open-gateway.jar /usr/finance-open-gateway/finance-open-gateway.jarENTRYPOINT ["/bin/bash", "/usr/finance-open-gateway/entrypoint.sh"]