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Vagrant file for setting up a single-node Kubernetes cluster that I can access from my desktop. Read more: https://medium.com/@lizrice/kubernetes-in-vagrant-with-kubeadm-21979ded6c63
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| # -*- mode: ruby -*- | |
| # vi: set ft=ruby : | |
| # This script to install Kubernetes will get executed after we have provisioned the box | |
| $script = <<-SCRIPT | |
| # Install docker (we do this rather than use the vagrant provisioner so we can fetch a specific version) | |
| curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - | |
| sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | |
| sudo apt-get update | |
| sudo apt-cache policy docker-ce | |
| sudo apt-get install docker-ce=18.06.0~ce-0~ubuntu | |
| # Install kubernetes | |
| apt-get update && apt-get install -y apt-transport-https | |
| curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - | |
| cat <<EOF >/etc/apt/sources.list.d/kubernetes.list | |
| deb http://apt.kubernetes.io/ kubernetes-xenial main | |
| EOF | |
| apt-get update | |
| apt-get install -y kubelet kubeadm kubectl | |
| # kubelet requires swap off | |
| swapoff -a | |
| # keep swap off after reboot | |
| sudo sed -i '/ swap / s/^\(.*\)$/#\1/g' /etc/fstab | |
| sudo sed -i '0,/ExecStart=/s//Environment="KUBELET_EXTRA_ARGS=--cgroup-driver=cgroupfs"\n&/' /etc/systemd/system/kubelet.service.d/10-kubeadm.conf | |
| # Get the IP address that VirtualBox has given this VM | |
| IPADDR=`ifconfig eth1 | grep inet | awk '{print $2}'| cut -f2 -d:` | |
| echo This VM has IP address $IPADDR | |
| # Set up Kubernetes | |
| NODENAME=$(hostname -s) | |
| echo This VM has IP node name $NODENAME | |
| kubeadm init --apiserver-cert-extra-sans=$IPADDR --node-name $NODENAME | |
| # Set up admin creds for the vagrant user | |
| echo Copying credentials to /home/vagrant... | |
| sudo --user=vagrant mkdir -p /home/vagrant/.kube | |
| cp -i /etc/kubernetes/admin.conf /home/vagrant/.kube/config | |
| chown $(id -u vagrant):$(id -g vagrant) /home/vagrant/.kube/config | |
| SCRIPT | |
| Vagrant.configure("2") do |config| | |
| # Specify your hostname if you like | |
| config.vm.hostname = "apiserver" | |
| config.vm.box = "bento/ubuntu-18.04" | |
| config.vm.network "private_network", type: "dhcp" | |
| #config.vm.provision "docker" | |
| config.vm.provision "shell", inline: $script | |
| end |
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