diff --git a/Vagrantfile b/Vagrantfile
new file mode 100644
index 0000000..b721bdb
--- /dev/null
+++ b/Vagrantfile
@@ -0,0 +1,55 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+  config.vm.box = "debian/stretch64"
+  config.vm.provision "shell", inline: <<-SHELL
+    apt update -y
+    apt upgrade -y
+    # for setup
+    apt install -y nginx git bundler apt-transport-https ca-certificates curl lv
+    # for convenience
+    apt install -y lv w3m
+
+    dpkg -l groonga > /dev/null 2>&1 || (
+      echo "deb https://packages.groonga.org/debian/ stretch main" > /etc/apt/sources.list.d/groonga.list &&
+      apt update -y;
+      apt install -y --allow-unauthenticated groonga-keyring &&
+      apt update -y &&
+      apt install -y -V groonga
+    )
+
+    dpkg -l libnginx-mod-http-passenger > /dev/null 2>&1 || (
+     apt install -y dirmngr gnupg &&
+     apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 561F9B9CAC40B2F7 &&
+     echo "deb https://oss-binaries.phusionpassenger.com/apt/passenger stretch main" > /etc/apt/sources.list.d/passenger.list &&
+     apt-get update -y &&
+     apt install -y libnginx-mod-http-passenger
+    )
+
+    grep rurema /etc/passwd > /dev/null 2>&1 || (
+      useradd -m -s /bin/bash rurema &&
+      usermod -aG sudo rurema &&
+      cp -a /home/vagrant/.ssh /home/rurema/.ssh &&
+      chown -R rurema:rurema /home/rurema/.ssh
+    )
+
+    mkdir -p /var/www/docs.ruby-lang.org /var/rubydoc
+    chown -R rurema:rurema /var/www/docs.ruby-lang.org /var/rubydoc
+
+    echo "20 13 * * * cd /var/www/docs.ruby-lang.org/current; ruby system/rdoc-static-all
+15  0 * * * cd /var/www/docs.ruby-lang.org/current; ruby system/bc-setup-all; ruby system/bc-static-all
+15  2 * * * cd /var/www/docs.ruby-lang.org/current; system/update-rurema-index" > /tmp/crontab.rurema
+    crontab -u rurema /tmp/crontab.rurema
+
+    ls /var/rubydoc/doctree > /dev/null 2>&1 ||
+      su - rurema -c "sh -c 'cd /var/rubydoc/ && git clone https://github.com/rurema/doctree.git'"
+
+    ls /etc/nginx/sites-available/docs.ruby-lang.org > /dev/null 2>&1 ||
+      curl --silent -o /etc/nginx/sites-available/docs.ruby-lang.org https://raw.githubusercontent.com/ruby/docs.ruby-lang.org/master/conf/docs.ruby-lang.org
+      ln -s ../sites-available/docs.ruby-lang.org /etc/nginx/sites-enabled/docs.ruby-lang.org
+      rm /etc/nginx/sites-enabled/default
+
+    echo "prepare done: exec cap deploy"
+  SHELL
+end