I've installed a Kubernetes cluster and deployed Jenkins in it which dynamically starts slave machines using Kubernetes plugin for Jenkins.

Some builds require a specific build machine with GNU make and specific kernel packages and for that I have a dedicated static virtual machine.

How can I automatically add the static virtual machine to Jenkins as a permanent slave? so when a Jenkins pod goes down and another starts it would automatically connect to the static slave?

  • are using and cloud provider? like EKS,AKS or GKE ? Jan 8, 2021 at 11:35
  • You can run that machine as a k8s-node and use taints and tolerations to ensure that is used by jenkins/k8s only for appropriate jobs. That way you don't need to worry about static slaves. Jan 11, 2021 at 17:46

1 Answer 1


Since I'm using Jenkins official helm chart which contains JCasC plugin (Jenkins Configuration as Code), I was able to configure the static slave attachment using it including the creation of relevant credentials.

Here's the relevant section of the values.yaml file I use to install/upgrade the Jenkins helm chart:

    defaultConfig: true
      credentials: |
              - credentials:
                  - usernamePassword:
                      scope: GLOBAL
                      id: "CentOS_7.1_k4.14.11_ssh_password"
                      username: 'jenkins'
                      password: ${decodeBase64:BASE64ENCODEDPASSWD}
                      description: "Username/Password Credentials for CentOS_7.1_k4.14.11"
      permanent-nodes: |
            - permanent:
                name: "CentOS 7.1 k4.14.11"
                remoteFS: "/home/jenkins"
                numExecutors: 2
                labelString: "CentOS_7.1_k4.14.11"
                mode: EXCLUSIVE
                retentionStrategy: "always"
                    jvmOptions: "-Xms256m -Xmx1024m -XX:MaxPermSize=1024m"
                    credentialsId: "CentOS_7.1_k4.14.11_ssh_password"
                    host: ""
                    port: 22
                        requireInitialManualTrust: false

Now whenever I re-deploy or upgrade Jenkins helm chart, it automatically configures these credentials and add the static slave.

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