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kubespray/Vagrantfile

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# -*- mode: ruby -*-
# # vi: set ft=ruby :
# For help on using kubespray with vagrant, check out docs/vagrant.md
require 'fileutils'
Vagrant.require_version ">= 2.0.0"
CONFIG = File.join(File.dirname(__FILE__), ENV['KUBESPRAY_VAGRANT_CONFIG'] || 'vagrant/config.rb')
FLATCAR_URL_TEMPLATE = "https://%s.release.flatcar-linux.net/amd64-usr/current/flatcar_production_vagrant.json"
# Uniq disk UUID for libvirt
DISK_UUID = Time.now.utc.to_i
SUPPORTED_OS = {
"flatcar-stable" => {box: "flatcar-stable", user: "core", box_url: FLATCAR_URL_TEMPLATE % ["stable"]},
"flatcar-beta" => {box: "flatcar-beta", user: "core", box_url: FLATCAR_URL_TEMPLATE % ["beta"]},
"flatcar-alpha" => {box: "flatcar-alpha", user: "core", box_url: FLATCAR_URL_TEMPLATE % ["alpha"]},
"flatcar-edge" => {box: "flatcar-edge", user: "core", box_url: FLATCAR_URL_TEMPLATE % ["edge"]},
"ubuntu1604" => {box: "generic/ubuntu1604", user: "vagrant"},
"ubuntu1804" => {box: "generic/ubuntu1804", user: "vagrant"},
"ubuntu2004" => {box: "generic/ubuntu2004", user: "vagrant"},
"centos" => {box: "centos/7", user: "vagrant"},
"centos-bento" => {box: "bento/centos-7.6", user: "vagrant"},
"centos8" => {box: "centos/8", user: "vagrant"},
"centos8-bento" => {box: "bento/centos-8", user: "vagrant"},
"fedora32" => {box: "fedora/32-cloud-base", user: "vagrant"},
"fedora33" => {box: "fedora/33-cloud-base", user: "vagrant"},
"opensuse" => {box: "bento/opensuse-leap-15.2", user: "vagrant"},
"opensuse-tumbleweed" => {box: "opensuse/Tumbleweed.x86_64", user: "vagrant"},
"oraclelinux" => {box: "generic/oracle7", user: "vagrant"},
"oraclelinux8" => {box: "generic/oracle8", user: "vagrant"},
"rhel7" => {box: "generic/rhel7", user: "vagrant"},
"rhel8" => {box: "generic/rhel8", user: "vagrant"},
}
if File.exist?(CONFIG)
require CONFIG
end
# Defaults for config options defined in CONFIG
$num_instances ||= 3
$instance_name_prefix ||= "k8s"
$vm_gui ||= false
$vm_memory ||= 2048
$vm_cpus ||= 2
$shared_folders ||= {}
$forwarded_ports ||= {}
$subnet ||= "172.18.8"
$subnet_ipv6 ||= "fd3c:b398:0698:0756"
$os ||= "ubuntu1804"
$network_plugin ||= "flannel"
# Setting multi_networking to true will install Multus: https://github.com/intel/multus-cni
$multi_networking ||= false
$download_run_once ||= "True"
$download_force_cache ||= "True"
# 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"
$local_path_provisioner_enabled ||= false
$local_path_provisioner_claim_root ||= "/opt/local-path-provisioner/"
$libvirt_nested ||= false
$playbook ||= "cluster.yml"
host_vars = {}
$box = SUPPORTED_OS[$os][:box]
# if $inventory is not set, try to use example
$inventory = "inventory/sample" if ! $inventory
$inventory = File.absolute_path($inventory, File.dirname(__FILE__))
# 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)
$vagrant_inventory = File.join($vagrant_ansible,"inventory")
FileUtils.rm_f($vagrant_inventory)
FileUtils.ln_s($inventory, $vagrant_inventory)
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|
config.vm.box = $box
if SUPPORTED_OS[$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
# 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 = $disk_size
end
(1..$num_instances).each do |i|
config.vm.define vm_name = "%s-%01d" % [$instance_name_prefix, i] do |node|
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|
node.vm.provider vmware do |v|
v.vmx['memsize'] = $vm_memory
v.vmx['numvcpus'] = $vm_cpus
end
end
node.vm.provider :virtualbox do |vb|
vb.memory = $vm_memory
vb.cpus = $vm_cpus
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
vb.customize ["modifyvm", :id, "--audio", "none"]
end
node.vm.provider :libvirt do |lv|
lv.nested = $libvirt_nested
lv.cpu_mode = "host-model"
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
if $kube_node_instances_with_disks
# Libvirt
driverletters = ('a'..'z').to_a
node.vm.provider :libvirt do |lv|
# always make /dev/sd{a/b/c} so that CI can ensure that
# virtualbox and libvirt will have the same devices to use for OSDs
(1..$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
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
if ["rhel7","rhel8"].include? $os
# Vagrant synced_folder rsync options cannot be used for RHEL boxes as Rsync package cannot
# be installed until the host is registered with a valid Red Hat support subscription
node.vm.synced_folder ".", "/vagrant", disabled: false
$shared_folders.each do |src, dst|
node.vm.synced_folder src, dst
end
else
node.vm.synced_folder ".", "/vagrant", disabled: false, type: "rsync", rsync__args: ['--verbose', '--archive', '--delete', '-z'] , rsync__exclude: ['.git','venv']
$shared_folders.each do |src, dst|
node.vm.synced_folder src, dst, type: "rsync", rsync__args: ['--verbose', '--archive', '--delete', '-z']
end
end
ip = "#{$subnet}.#{i+100}"
node.vm.network :private_network, ip: ip,
:libvirt__guest_ipv6 => 'yes',
:libvirt__ipv6_address => "#{$subnet_ipv6}::#{i+100}",
:libvirt__ipv6_prefix => "64",
:libvirt__forward_mode => "none",
:libvirt__dhcp_enabled => false
# Disable swap for each vm
node.vm.provision "shell", inline: "swapoff -a"
# ubuntu1804 and ubuntu2004 have IPv6 explicitly disabled. This undoes that.
if ["ubuntu1804", "ubuntu2004"].include? $os
node.vm.provision "shell", inline: "rm -f /etc/modprobe.d/local.conf"
node.vm.provision "shell", inline: "sed -i '/net.ipv6.conf.all.disable_ipv6/d' /etc/sysctl.d/99-sysctl.conf /etc/sysctl.conf"
end
# Disable firewalld on oraclelinux/redhat vms
if ["oraclelinux","oraclelinux8","rhel7","rhel8"].include? $os
node.vm.provision "shell", inline: "systemctl stop firewalld; systemctl disable firewalld"
end
host_vars[vm_name] = {
"ip": ip,
"flannel_interface": "eth1",
"kube_network_plugin": $network_plugin,
"kube_network_plugin_multus": $multi_networking,
"download_run_once": $download_run_once,
"download_localhost": "False",
"download_cache_dir": ENV['HOME'] + "/kubespray_cache",
# Make kubespray cache even when download_run_once is false
"download_force_cache": $download_force_cache,
# Keeping the cache on the nodes can improve provisioning speed while debugging kubespray
"download_keep_remote_cache": "False",
"docker_rpm_keepcache": "1",
# These two settings will put kubectl and admin.config in $inventory/artifacts
"kubeconfig_localhost": "True",
"kubectl_localhost": "True",
"local_path_provisioner_enabled": "#{$local_path_provisioner_enabled}",
"local_path_provisioner_claim_root": "#{$local_path_provisioner_claim_root}",
"ansible_ssh_user": SUPPORTED_OS[$os][:user]
}
# Only execute the Ansible provisioner once, when all the machines are up and ready.
if i == $num_instances
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 = $ansible_inventory_path
end
ansible.become = true
ansible.limit = "all,localhost"
ansible.host_key_checking = false
ansible.raw_arguments = ["--forks=#{$num_instances}", "--flush-cache", "-e ansible_become_pass=vagrant"]
ansible.host_vars = host_vars
#ansible.tags = ['download']
ansible.groups = {
"etcd" => ["#{$instance_name_prefix}-[1:#{$etcd_instances}]"],
"kube_control_plane" => ["#{$instance_name_prefix}-[1:#{$kube_master_instances}]"],
"kube_node" => ["#{$instance_name_prefix}-[1:#{$kube_node_instances}]"],
"k8s_cluster:children" => ["kube_control_plane", "kube_node"],
}
end
end
end
end
end
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