kubespray/Vagrantfile

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# -*- mode: ruby -*-
# # vi: set ft=ruby :
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# For help on using kubespray with vagrant, check out docs/vagrant.md
require 'fileutils'
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Vagrant.require_version ">= 2.0.0"
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"
# Uniq disk UUID for libvirt
DISK_UUID = Time.now.utc.to_i
SUPPORTED_OS = {
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"coreos-stable" => {box: "coreos-stable", user: "core", box_url: COREOS_URL_TEMPLATE % ["stable"]},
"coreos-alpha" => {box: "coreos-alpha", user: "core", box_url: COREOS_URL_TEMPLATE % ["alpha"]},
"coreos-beta" => {box: "coreos-beta", user: "core", box_url: COREOS_URL_TEMPLATE % ["beta"]},
"ubuntu1604" => {box: "generic/ubuntu1604", user: "vagrant"},
"ubuntu1804" => {box: "generic/ubuntu1804", user: "vagrant"},
"centos" => {box: "centos/7", user: "vagrant"},
"centos-bento" => {box: "bento/centos-7.5", user: "vagrant"},
"fedora" => {box: "fedora/28-cloud-base", user: "vagrant"},
"opensuse" => {box: "opensuse/openSUSE-42.3-x86_64", user: "vagrant"},
"opensuse-tumbleweed" => {box: "opensuse/openSUSE-Tumbleweed-x86_64", user: "vagrant"},
}
# Defaults for config options defined in CONFIG
$num_instances = 3
$instance_name_prefix = "k8s"
$vm_gui = false
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$vm_memory = 2048
$vm_cpus = 1
$shared_folders = {}
$forwarded_ports = {}
$subnet = "172.17.8"
$os = "ubuntu1804"
$network_plugin = "flannel"
# Setting multi_networking to true will install Multus: https://github.com/intel/multus-cni
$multi_networking = false
# The first three nodes are etcd servers
$etcd_instances = $num_instances
# The first two nodes are kube masters
$kube_master_instances = $num_instances == 1 ? $num_instances : ($num_instances - 1)
# All nodes are kube nodes
$kube_node_instances = $num_instances
# The following only works when using the libvirt provider
$kube_node_instances_with_disks = false
$kube_node_instances_with_disks_size = "20G"
$kube_node_instances_with_disks_number = 2
$override_disk_size = false
$disk_size = "20GB"
$playbook = "cluster.yml"
host_vars = {}
if File.exist?(CONFIG)
require CONFIG
end
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$box = SUPPORTED_OS[$os][:box]
# if $inventory is not set, try to use example
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$inventory = "inventory/sample" if ! $inventory
$inventory = File.absolute_path($inventory, File.dirname(__FILE__))
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# if $inventory has a hosts.ini file use it, otherwise copy over
# vars etc to where vagrant expects dynamic inventory to be
if ! File.exist?(File.join(File.dirname($inventory), "hosts.ini"))
$vagrant_ansible = File.join(File.dirname(__FILE__), ".vagrant", "provisioners", "ansible")
FileUtils.mkdir_p($vagrant_ansible) if ! File.exist?($vagrant_ansible)
if ! File.exist?(File.join($vagrant_ansible,"inventory"))
FileUtils.ln_s($inventory, File.join($vagrant_ansible,"inventory"))
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|
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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]
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# plugin conflict
if Vagrant.has_plugin?("vagrant-vbguest") then
config.vbguest.auto_update = false
end
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# always use Vagrants insecure key
config.ssh.insert_key = false
if ($override_disk_size)
unless Vagrant.has_plugin?("vagrant-disksize")
system "vagrant plugin install vagrant-disksize"
end
config.disksize.size = $disk_size
end
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(1..$num_instances).each do |i|
config.vm.define vm_name = "%s-%01d" % [$instance_name_prefix, i] do |node|
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node.vm.hostname = vm_name
if Vagrant.has_plugin?("vagrant-proxyconf")
node.proxy.http = ENV['HTTP_PROXY'] || ENV['http_proxy'] || ""
node.proxy.https = ENV['HTTPS_PROXY'] || ENV['https_proxy'] || ""
node.proxy.no_proxy = $no_proxy
end
["vmware_fusion", "vmware_workstation"].each do |vmware|
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node.vm.provider vmware do |v|
v.vmx['memsize'] = $vm_memory
v.vmx['numvcpus'] = $vm_cpus
end
end
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node.vm.provider :virtualbox do |vb|
vb.memory = $vm_memory
vb.cpus = $vm_cpus
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vb.gui = $vm_gui
vb.linked_clone = true
vb.customize ["modifyvm", :id, "--vram", "8"] # ubuntu defaults to 256 MB which is a waste of precious RAM
end
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node.vm.provider :libvirt do |lv|
lv.memory = $vm_memory
lv.cpus = $vm_cpus
lv.default_prefix = 'kubespray'
# Fix kernel panic on fedora 28
if $os == "fedora"
lv.cpu_mode = "host-passthrough"
end
end
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if $kube_node_instances_with_disks
# Libvirt
driverletters = ('a'..'z').to_a
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node.vm.provider :libvirt do |lv|
# always make /dev/sd{a/b/c} so that CI can ensure that
# virtualbox and libvirt will have the same devices to use for OSDs
(1..$kube_node_instances_with_disks_number).each do |d|
lv.storage :file, :device => "hd#{driverletters[d]}", :path => "disk-#{i}-#{d}-#{DISK_UUID}.disk", :size => $kube_node_instances_with_disks_size, :bus => "ide"
end
end
end
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if $expose_docker_tcp
node.vm.network "forwarded_port", guest: 2375, host: ($expose_docker_tcp + i - 1), auto_correct: true
end
$forwarded_ports.each do |guest, host|
node.vm.network "forwarded_port", guest: guest, host: host, auto_correct: true
end
node.vm.synced_folder ".", "/vagrant", disabled: false, type: "rsync", rsync__args: ['--verbose', '--archive', '--delete', '-z'] , rsync__exclude: ['.git','venv']
$shared_folders.each do |src, dst|
node.vm.synced_folder src, dst, type: "rsync", rsync__args: ['--verbose', '--archive', '--delete', '-z']
end
ip = "#{$subnet}.#{i+100}"
node.vm.network :private_network, ip: ip
# Disable swap for each vm
node.vm.provision "shell", inline: "swapoff -a"
host_vars[vm_name] = {
"ip": ip,
"flannel_interface": "eth1",
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"kube_network_plugin": $network_plugin,
"kube_network_plugin_multus": $multi_networking,
"docker_keepcache": "1",
"download_run_once": "True",
"download_localhost": "False"
}
# Only execute the Ansible provisioner once, when all the machines are up and ready.
if i == $num_instances
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node.vm.provision "ansible" do |ansible|
ansible.playbook = $playbook
$ansible_inventory_path = File.join( $inventory, "hosts.ini")
if File.exist?($ansible_inventory_path)
ansible.inventory_path = $ansible_inventory_path
end
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ansible.become = true
ansible.limit = "all"
ansible.host_key_checking = false
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ansible.raw_arguments = ["--forks=#{$num_instances}", "--flush-cache", "--ask-become-pass"]
ansible.host_vars = host_vars
#ansible.tags = ['download']
ansible.groups = {
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"etcd" => ["#{$instance_name_prefix}-[1:#{$etcd_instances}]"],
"kube-master" => ["#{$instance_name_prefix}-[1:#{$kube_master_instances}]"],
"kube-node" => ["#{$instance_name_prefix}-[1:#{$kube_node_instances}]"],
"k8s-cluster:children" => ["kube-master", "kube-node"],
}
end
end
end
end
end