Vagrantfile and yaml for local testing (#25)

examples/vagrant/README.md

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+# Vagrant, kupo!
+
+Kupo Vagrant setup mainly for local testing.
+
+## Quickstart
+
+```sh
+$ vagrant up
+$ kupo up
+$ export KUBECONFIG=~/.kupo/192.168.100.100
+$ kubectl get nodes
+```
+
+## Teardown
+
+```sh
+$ vagrant destroy
+```
+
+## License
+
+Copyright (c) 2018 Kontena, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

examples/vagrant/Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant::DEFAULT_SERVER_URL.replace('https://vagrantcloud.com')
+
+# All Vagrant configuration is done below. The "2" in Vagrant.configure
+# configures the configuration version (we support older styles for
+# backwards compatibility). Please don't change it unless you know what
+# you're doing.
+Vagrant.configure("2") do |config|
+  # The most common configuration options are documented and commented below.
+  # For a complete reference, please see the online documentation at
+  # https://docs.vagrantup.com.
+
+  # Every Vagrant development environment requires a box. You can search for
+  # boxes at https://atlas.hashicorp.com/search.
+  config.vm.box = "ubuntu/xenial64"
+
+  # Disable automatic box update checking. If you disable this, then
+  # boxes will only be checked for updates when the user runs
+  # `vagrant box outdated`. This is not recommended.
+  config.vm.box_check_update = false
+
+  3.times.each do |i|
+    vm_name = "%s-%02d" % ['host', i]
+    config.vm.define(vm_name) do |host|
+      host.vm.hostname = vm_name
+      host.ssh.insert_key = false
+      host.vm.provider :virtualbox do |vb|
+        vb.gui = false
+        vb.memory = "2048"
+        vb.cpus = 1
+      end
+      host.vm.network "private_network", ip: "192.168.100.#{i+100}"
+    end
+  end
+end

examples/vagrant/cluster.yml

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+hosts:
+  - address: 192.168.100.100
+    private_address: 192.168.100.100 # just to advertise correct ip with vagrant
+    user: vagrant
+    role: master
+    ssh_key_path: ~/.vagrant.d/insecure_private_key
+  - address: 192.168.100.101
+    user: vagrant
+    role: worker
+    ssh_key_path: ~/.vagrant.d/insecure_private_key
+  - address: 192.168.100.102
+    user: vagrant
+    role: worker
+    ssh_key_path: ~/.vagrant.d/insecure_private_key
+network:
+  pod_network_cidr: 10.32.0.0/16
+  trusted_subnets:
+    - 192.168.100.0/24
+addons:
+  ingress-nginx:
+    enabled: true
+    configmap:
+      map-hash-bucket-size: "128"
+  kured:
+    enabled: false
+  host-upgrades:
+    enabled: false
+    interval: 7d