kubespray/Vagrantfile

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# -*- mode: ruby -*-
# # vi: set ft=ruby :
require 'fileutils'
Vagrant.require_version ">= 1.8.0"
CONFIG = File.join(File.dirname(__FILE__), "vagrant/config.rb")
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COREOS_URL_TEMPLATE = "https://storage.googleapis.com/%s.release.core-os.net/amd64-usr/current/coreos_production_vagrant.json"
SUPPORTED_OS = {
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"coreos-stable" => {box: "coreos-stable", bootstrap_os: "coreos", user: "core", box_url: COREOS_URL_TEMPLATE % ["stable"]},
"coreos-alpha" => {box: "coreos-alpha", bootstrap_os: "coreos", user: "core", box_url: COREOS_URL_TEMPLATE % ["alpha"]},
"coreos-beta" => {box: "coreos-beta", bootstrap_os: "coreos", user: "core", box_url: COREOS_URL_TEMPLATE % ["beta"]},
"ubuntu" => {box: "bento/ubuntu-16.04", bootstrap_os: "ubuntu", user: "ubuntu"},
}
# Defaults for config options defined in CONFIG
$num_instances = 3
$instance_name_prefix = "k8s"
$vm_gui = false
$vm_memory = 1536
$vm_cpus = 1
$shared_folders = {}
$forwarded_ports = {}
$subnet = "172.17.8"
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$os = "ubuntu"
# The first three nodes are etcd servers
$etcd_instances = $num_instances
# The first two nodes are masters
$kube_master_instances = $num_instances == 1 ? $num_instances : ($num_instances - 1)
# All nodes are kube nodes
$kube_node_instances = $num_instances
$local_release_dir = "/vagrant/temp"
host_vars = {}
if File.exist?(CONFIG)
require CONFIG
end
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$box = SUPPORTED_OS[$os][:box]
# if $inventory is not set, try to use example
$inventory = File.join(File.dirname(__FILE__), "inventory") if ! $inventory
# if $inventory has a hosts file use it, otherwise copy over vars etc
# to where vagrant expects dynamic inventory to be.
if ! File.exist?(File.join(File.dirname($inventory), "hosts"))
$vagrant_ansible = File.join(File.dirname(__FILE__), ".vagrant",
"provisioners", "ansible")
FileUtils.mkdir_p($vagrant_ansible) if ! File.exist?($vagrant_ansible)
if ! File.exist?(File.join($vagrant_ansible,"inventory"))
FileUtils.ln_s($inventory, $vagrant_ansible)
end
end
if Vagrant.has_plugin?("vagrant-proxyconf")
$no_proxy = ENV['NO_PROXY'] || ENV['no_proxy'] || "127.0.0.1,localhost"
(1..$num_instances).each do |i|
$no_proxy += ",#{$subnet}.#{i+100}"
end
end
Vagrant.configure("2") do |config|
# always use Vagrants insecure key
config.ssh.insert_key = false
config.vm.box = $box
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if SUPPORTED_OS[$os].has_key? :box_url
config.vm.box_url = SUPPORTED_OS[$os][:box_url]
end
config.ssh.username = SUPPORTED_OS[$os][:user]
# plugin conflict
if Vagrant.has_plugin?("vagrant-vbguest") then
config.vbguest.auto_update = false
end
(1..$num_instances).each do |i|
config.vm.define vm_name = "%s-%02d" % [$instance_name_prefix, i] do |config|
config.vm.hostname = vm_name
if Vagrant.has_plugin?("vagrant-proxyconf")
config.proxy.http = ENV['HTTP_PROXY'] || ENV['http_proxy'] || ""
config.proxy.https = ENV['HTTPS_PROXY'] || ENV['https_proxy'] || ""
config.proxy.no_proxy = $no_proxy
end
if $expose_docker_tcp
config.vm.network "forwarded_port", guest: 2375, host: ($expose_docker_tcp + i - 1), auto_correct: true
end
$forwarded_ports.each do |guest, host|
config.vm.network "forwarded_port", guest: guest, host: host, auto_correct: true
end
["vmware_fusion", "vmware_workstation"].each do |vmware|
config.vm.provider vmware do |v|
v.vmx['memsize'] = $vm_memory
v.vmx['numvcpus'] = $vm_cpus
end
end
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$shared_folders.each do |src, dst|
config.vm.synced_folder src, dst
end
config.vm.provider :virtualbox do |vb|
vb.gui = $vm_gui
vb.memory = $vm_memory
vb.cpus = $vm_cpus
end
ip = "#{$subnet}.#{i+100}"
host_vars[vm_name] = {
"ip": ip,
"flannel_interface": ip,
"flannel_backend_type": "host-gw",
"local_release_dir" => $local_release_dir,
"download_run_once": "False",
# Override the default 'calico' with flannel.
# inventory/group_vars/k8s-cluster.yml
"kube_network_plugin": "flannel",
"bootstrap_os": SUPPORTED_OS[$os][:bootstrap_os]
}
config.vm.network :private_network, ip: ip
# Only execute once the Ansible provisioner,
# when all the machines are up and ready.
if i == $num_instances
config.vm.provision "ansible" do |ansible|
ansible.playbook = "cluster.yml"
if File.exist?(File.join(File.dirname($inventory), "hosts"))
ansible.inventory_path = $inventory
end
ansible.sudo = true
ansible.limit = "all"
ansible.host_key_checking = false
ansible.raw_arguments = ["--forks=#{$num_instances}"]
ansible.host_vars = host_vars
#ansible.tags = ['download']
ansible.groups = {
"etcd" => ["#{$instance_name_prefix}-0[1:#{$etcd_instances}]"],
"kube-master" => ["#{$instance_name_prefix}-0[1:#{$kube_master_instances}]"],
"kube-node" => ["#{$instance_name_prefix}-0[1:#{$kube_node_instances}]"],
"k8s-cluster:children" => ["kube-master", "kube-node"],
}
end
end
end
end
end