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Merge pull request #1328 from kevinjqiu/coreos-vagrant

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Support provisioning vagrant k8s clusters with coreos
This commit is contained in:
Spencer Smith 2017-06-05 14:30:49 -07:00 committed by GitHub
commit d323501c7f
2 changed files with 44 additions and 2 deletions
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18
Vagrantfile vendored
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@ -7,6 +7,15 @@ Vagrant.require_version ">= 1.8.0"
CONFIG = File.join(File.dirname(__FILE__), "vagrant/config.rb")
COREOS_URL_TEMPLATE = "https://storage.googleapis.com/%s.release.core-os.net/amd64-usr/current/coreos_production_vagrant.json"
SUPPORTED_OS = {
"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"
@ -16,7 +25,7 @@ $vm_cpus = 1
$shared_folders = {}
$forwarded_ports = {}
$subnet = "172.17.8"
$box = "bento/ubuntu-16.04"
$os = "ubuntu"
# The first three nodes are etcd servers
$etcd_instances = $num_instances
# The first two nodes are masters
@ -31,6 +40,7 @@ if File.exist?(CONFIG)
require CONFIG
end
$box = SUPPORTED_OS[$os][:box]
# if $inventory is not set, try to use example
$inventory = File.join(File.dirname(__FILE__), "inventory") if ! $inventory
@ -56,7 +66,10 @@ Vagrant.configure("2") do |config|
# always use Vagrants insecure key
config.ssh.insert_key = false
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
@ -103,6 +116,7 @@ Vagrant.configure("2") do |config|
# 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

28
docs/vagrant.md
View file

@ -39,3 +39,31 @@ k8s-01 Ready 45s
k8s-02 Ready 45s
k8s-03 Ready 45s
```
Customize Vagrant
=================
You can override the default settings in the `Vagrantfile` either by directly modifying the `Vagrantfile`
or through an override file.
In the same directory as the `Vagrantfile`, create a folder called `vagrant` and create `config.rb` file in it.
You're able to override the variables defined in `Vagrantfile` by providing the value in the `vagrant/config.rb` file,
e.g.:
echo '$forwarded_ports = {8001 => 8001}' >> vagrant/config.rb
and after `vagrant up` or `vagrant reload`, your host will have port forwarding setup with the guest on port 8001.
Use alternative OS for Vagrant
==============================
By default, Vagrant uses Ubuntu 16.04 box to provision a local cluster. You may use an alternative supported
operating system for your local cluster.
Customize `$os` variable in `Vagrantfile` or as override, e.g.,:
echo '$os = "coreos-stable"' >> vagrant/config.rb
The supported operating systems for vagrant are defined in the `SUPPORTED_OS` constant in the `Vagrantfile`.