Development and joint debugging with remote Kubernetes under local Windows

The first step is to configure kubectl

• Install locally kubectl, and configure the path to the environment variable.
• Find the file on the server apiserver.crt, usually in /etc/kubernetes/pki, and execute the openssl x509 -in apiserver.crt -noout -text | grep DNScommand.
• Add any domain name (usually kubernetes) of the DNS value in the above figure to the local hosts, and the ip address is the external network IP of the k8s server.
• Download the server-side ~/.kube/configto the local, configured , kubectlthe file is usually under, and change the address to the domain name configured in hosts.configconfigC:\Users\{用户}\.kube\clusters:clusters:clusters:

The second step is to configure KT-Connect and use IDEA for development and joint debugging

• Download KT-Connect, install it locally and configure the path to the environment variable.
• IDEA downloads and installs the latest version of the JVM Inject plugin
• Use ktctl in the directory of the project opened by IDEA to start the socks5 proxy service from the local to the cluster, ktctl connect --method=socks5 --dump2hosts

• Refresh the directory in IDEA until you can see the .jvmrc file, then you can start the project. The VM Inject plugin will automatically read the .jvmrc file when the Java program starts, and append it to the program's startup parameters, as shown below:

java ...省略的其他输出... -Djava.rmi.server.hostname=127.0.0.1 -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true -Dhttp.proxyHost=127.0

• You can access the address in the cluster

@ApiOperation("k8s测试")
@PostMapping("/index")
public Result<String> index() {
    String s = HttpUtil.get("http://10.233.99.24:8080");
    return Res.ok(s);
}

The effect of the browser directly accessing the address in the cluster:

Java program access effect:

FAQ

• The following error occurs when starting

Solution: Delete .ktctlthe files under the pidfolder

Project Recommendation: Based on Spring Cloud Alibaba technology, a distributed microservice development platform including basic functions, OA, payment, marketing and other modules

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