Simple local Jenkins

jenkins.tf

$ sudo snap install microk8s

$ microk8s.enable dns dashboard ingress

$ nap alias microk8s.kubectl kubectl

$ kubectl config view --raw > $HOME/.kube/config

Download terraform: https://www.terraform.io/downloads.html

$ mkdir -p workspace/jenkins

$touch example.tf and insert ...

resource "kubernetes_pod" "jenkins" {
  metadata {
    name = "jenkins"
    labels {
      App = "jenkins"
    }
  }

  spec {
    container {
      image = "jenkins/jenkins:lts"
      name  = "jenkins"

      port {
        container_port = 8080
      }
    }
  }
}

resource "kubernetes_service" "jenkins" {
  metadata {
    name = "jenkins"
  }
  spec {
    selector {
      App = "${kubernetes_pod.jenkins.metadata.0.labels.App}"
    }
    port {
      port = 80
      target_port = 8080
    }

    type = "ClusterIP"
  }
}

$ terraform init
$ terraform apply

$ kubectl get services
Note the cluster-ip from jenkins, navigate to it in your browser..

$ kubectl exec -it jenkins -- /bin/bash
# cat /var/jenkins_home/secrets/initialAdminPassword

copy the password.

From: https://microk8s.io/docs/

My pods can’t reach the internet (but my MicroK8s host machine can).
Make sure packets to/from the pod network interface can be forwarded to/from the default interface on the host:

sudo iptables -P FORWARD ACCEPT

or, if using ufw:

sudo ufw default allow routed