prepare Vagrant instead of devcontainer for platforms other than linux.

README.md

@@ -33,7 +33,7 @@ youki is not at the practical stage yet. However, it is getting closer to practi
 # Getting Started
 
 Local build is only supported on linux.
-For other platforms, please use the devcontainer that we prepared.
+For other platforms, please use [Vagrantfile](#setting-up-vagrant) that we prepared.
 
 ## Requires
 
@@ -105,6 +105,19 @@ $ git submodule update --init --recursive
 $ ./integration_test.sh
 ```
 
+### Setting up Vagrant
+You can try youki on platforms other than linux by using the Vagrantfile we have prepared.
+
+```
+$ git clone [email protected]:containers/youki.git
+$ cd youki
+$ vagrant up
+$ vagrant ssh
+# in virtual machine
+$ cd youki # in virtual machine
+$ ./build.sh
+```
+
 # Community
 
 We also have an active [Discord](https://discord.gg/h7R3HgWUct) if you'd like to come and chat with us.

Vagrantfile

@@ -0,0 +1,21 @@
+# -*- mode: ruby -*-
+# vi: set ft=ruby :
+
+Vagrant.configure("2") do |config|
+    config.vm.box = "fedora/33-cloud-base"
+    config.vm.synced_folder '.', '/vagrant', disabled: true
+
+    config.vm.provision "shell", inline: <<-SHELL
+      set -e -u -o pipefail
+      yum install -y git gcc docker
+      grubby --update-kernel=ALL --args="systemd.unified_cgroup_hierarchy=0"
+      service docker start
+    SHELL
+
+    config.vm.provision "shell", privileged: false, inline: <<-SHELL
+      curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+      echo "export PATH=$PATH:$HOME/.cargo/bin" >> ~/.bashrc
+
+      git clone https://github.com/containers/youki
+    SHELL
+  end