docker | vagrant
Table of Content

dreamcloud/ub17k8s is a docker/k8s ready box, here is demo to show how to launch a 2 nodes k8s cluster in few mins using vagrant.

tool set

  • vagant 2.0.1
  • virtualbox 5.1.30
  • cmder/msys64, I use portabledevops which seamless integrated with vagrant/virtualbox

prepare Vagrantfile

$ mkdir ~/vagrant/k8stest
$ curl -LO https://raw.githubusercontent.com/robertluwang/docker-hands-on-guide/master/dreamcloud-vagrant/ub17k8s/Vagrantfile

assume the k8s cluster setting:

  • ub17k8s-master 10.110.0.15
  • ub17k8s-node 10.110.0.16
  • vm memory: 1024
  • pod network: calico

you can change if you want except pod network in Vagrantfile.

launch k8s cluster from vagrant box

$ date;vagrant up;date
Sat, Dec 30, 2017 12:47:25 PM
Sat, Dec 30, 2017 12:52:21 PM

$ vagrant status
Current machine states:

ub17k8s-master running (virtualbox)
ub17k8s-node running (virtualbox)

k8s cluster launched in exactly 5 mins !

test k8s cluster

2 nodes cluster is ready now.

cluster nodes

vagrant@ub17k8s-master:~$ kubectl get nodes
NAME             STATUS    ROLES     AGE       VERSION
ub17k8s-master   Ready     master    4m        v1.9.0
ub17k8s-node     Ready         2m        v1.9.0

system pods

vagrant@ub17k8s-master:~$ kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system calico-etcd-gdmll 1/1 Running 0 6m
kube-system calico-kube-controllers-d669cc78f-nw5zz 1/1 Running 0 6m
kube-system calico-node-rqlrw 2/2 Running 0 6m
kube-system calico-node-vt7vb 2/2 Running 0 4m
kube-system etcd-ub17k8s-master 1/1 Running 0 6m
kube-system kube-apiserver-ub17k8s-master 1/1 Running 0 5m
kube-system kube-controller-manager-ub17k8s-master 1/1 Running 0 6m
kube-system kube-dns-6f4fd4bdf-vs8g7 3/3 Running 0 6m
kube-system kube-proxy-mtw59 1/1 Running 0 6m
kube-system kube-proxy-nrdxq 1/1 Running 0 4m
kube-system kube-scheduler-ub17k8s-master 1/1 Running 0 5m