Add a Vagrantfile for testing

.gitignore

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+.vagrant

Vagrantfile

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+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant::DEFAULT_SERVER_URL.replace('https://vagrantcloud.com')
+
+# Load ~/.VagrantFile if exist, permit local config provider
+vagrantfile = File.join("#{Dir.home}", '.VagrantFile')
+load File.expand_path(vagrantfile) if File.exists?(vagrantfile)
+
+Vagrant.configure('2') do |config|
+  config.vm.synced_folder "./", "/vagrant", type: "rsync", rsync__exclude: [ '.vagrant', '.git' ]
+
+  $deps = <<SCRIPT
+mkdir -p /etc/shellpki
+id shellpki 2>&1 >/dev/null || useradd shellpki --system -M --home-dir /etc/shellpki --shell /usr/sbin/nologin
+ln -sf /vagrant/openssl.cnf /etc/shellpki/
+ln -sf /vagrant/shellpki.sh /usr/local/sbin/shellpki
+SCRIPT
+
+  config.vm.define :shellpki do |node|
+    node.vm.hostname = "shellpki"
+    node.vm.box = "debian/stretch64"
+
+    node.vm.provision "deps", type: "shell", :inline => $deps
+  end
+
+end