1. Add credentials
2. Add node

1. Manage Jenkins --> Manage Credentials --> System --> Global credentials --> Add credentials
2. Provide the below info to add credentials
   kind: ssh username with private key
   Scope: Global
   ID: maven_slave
   Username: ec2-user
   private key: dpo.pem key content

Follow the below setups to add a new slave node to the jenkins

1. Goto Manage Jenkins --> Manage nodes and clouds --> New node --> Permanent Agent

2. Provide the below info to add the node
   Number of executors: 3
   Remote root directory: /home/ec2-user/jenkins
   Labels: maven
   Usage: Use this node as much as possible
   Launch method: Launch agents via SSH
   Host: <Private_IP_of_Slave>
   Credentials: <Jenkins_Slave_Credentials>
   Host Key Verification Strategy: Non verifying Verification Strategy
   Availability: Keep this agent online as much as possible

   Enable Webhook

3. Install "multibranch scan webhook trigger" plugin
   From dashboard --> manage jenkins --> manage plugins --> Available Plugins
   Search for "Multibranch Scan webhook Trigger" plugin and install it.

4. Go to multibranch pipeline job job --> configure --> Scan Multibranch Pipeline Triggers --> Scan Multibranch Pipeline Triggers --> Scan by webhook
   Trigger token: <token_name>

5. Add webhook to GitHub repository Github repo --> settings --> webhooks --> Add webhook
   Payload URl: <jenkins_IP>:8080/multibranch-webhook-trigger/invoke?token=<token_name>
   Content type: application/json
   Which event would you like to trigger this webhook: just the push event

1. Create Sonar cloud account on https://sonarcloud.io

2. Generate an Authentication token on SonarQube     Account --> my account --> Security --> Generate Tokens

3. On Jenkins create credentials    Manage Jenkins --> manage credentials --> system --> Global credentials --> add credentials  - Credentials type: Secret text  - ID: sonarqube-key

4. Install SonarQube plugin     Manage Jenkins --> Available plugins     Search for sonarqube scanner

5. Configure sonarqube server    Manage Jenkins --> Configure System --> sonarqube server    Add Sonarqube server    - Name: sonar-server    - Server URL: https://sonarcloud.io/    - Server authentication token: sonarqube-key

6. Configure sonarqube scanner    Manage Jenkins --> Global Tool configuration --> Sonarqube scanner    Add sonarqube scanner    - Sonarqube scanner: sonar-scanner