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9_debugging.adoc

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Step 9: Debugging

Java

For springboot

Create a directory hello/springboot/src/main/fabric8

Create a file called service.yml

apiVersion: v1
kind: Service
spec:
  type: NodePort

and Create a file called deployment.yml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  namespace: myspace

mvn io.fabric8:fabric8-maven-plugin:3.5.40:setup

mvn fabric8:debug

...
[INFO] Using namespace: default
Trying internal type for name:Service
Trying internal type for name:Deployment
[INFO] Updating a Service from kubernetes.yml
[INFO] Updated Service: target/fabric8/applyJson/default/service-boot-demo-1.json
[INFO] F8: Enabling debug on Deployment boot-demo
[WARNING] The client is using resource type 'deployments' with unstable version 'v1beta1'
[INFO] F8: Waiting for debug pod with selector LabelSelector(matchExpressions=[], matchLabels={app=boot-demo, provider=fabric8, group=com.burrsutter}, additionalProperties={}) and environment variables {JAVA_DEBUG_SUSPEND=false, JAVA_ENABLE_DEBUG=true}
Trying internal type for name:Pod
[INFO] F8:[W] boot-demo-bd7bcfd87-smthv status: Pending
[INFO] F8:[W] boot-demo-55d8cc66fd-qpws4 status: Running Ready
[INFO] F8:[W] boot-demo-bd7bcfd87-smthv status: Pending
[INFO] F8:[W] boot-demo-55d8cc66fd-qpws4 status: Running
[INFO] F8:[W] boot-demo-bd7bcfd87-smthv status: Running Ready
[INFO] F8:[W] boot-demo-55d8cc66fd-qpws4 status: Running
[INFO] F8:[W] boot-demo-55d8cc66fd-qpws4 status: Running
[INFO] F8: Port forwarding to port 5005 on pod boot-demo-bd7bcfd87-smthv using command /Users/burrsutter/minikube_0.28.1/bin/kubectl
[INFO] F8:[W] boot-demo-55d8cc66fd-qpws4 status: Running : Pod Deleted

Visual Studio Code

Debug - Add Configuration

which creates a Launch.json file, then comment it like so

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        // {
        //     "type": "java",
        //     "name": "Debug (Launch)",
        //     "request": "launch",
        //     "cwd": "${workspaceFolder}",
        //     "console": "internalConsole",
        //     "stopOnEntry": false,
        //     "mainClass": "",
        //     "args": ""
        // },
        // {
        //     "type": "java",
        //     "name": "Debug (Launch)-HellobootApplication<boot-demo>",
        //     "request": "launch",
        //     "cwd": "${workspaceFolder}",
        //     "console": "internalConsole",
        //     "stopOnEntry": false,
        //     "mainClass": "com.burrsutter.HellobootApplication",
        //     "args": "",
        //     "projectName": "boot-demo"
        // },
        {
            "type": "java",
            "name": "Debug (Attach)",
            "request": "attach",
            "hostName": "localhost",
            "port": "5005"
        }
    ]
}

with port 5005