Use Docker instead of Vagrant for generate images

Fixes #2

qemu/README.md

@@ -15,26 +15,23 @@ Features:
 
 First of all we need to generate rootfs for run qemu.
 
-#### GNU/Linux
+#### Install qemu and docker
 
-    $ sudo apt install -y debootstrap qemu
-    $ sudo qemu-debian-img generate sid.img
+##### GNU/Linux
 
-#### macOS
+    $ sudo apt install -y qemu docker
+
+##### macOS
 
 Note: qemu on macOS since v2.12 (24 April 2018) supports Hypervisor.framework.
 
     $ brew install qemu
+    $ brew cask install docker
 
-Because it's a very complicated to debootstrap qemu images from macOS,
-preferred way is to use Vagrant with any hypervisor.
+#### Generate image
 
-    $ brew cask install vagrant
-    $ vagrant plugin install vagrant-vbguest
-    $ cd $GOPATH/src/github.com/jollheef/out-of-tree/qemu/tools/qemu-debian-image
-    $ vagrant up && vagrant destroy -f
-
-bionic.img, vmlinuz-bionic and initrd-bionic will be created in current directory.
+    $ cd $GOPATH/src/github.com/jollheef/out-of-tree/tools/qemu-debian-img
+    $ ./bootstrap.sh
 
 ### Fill configuration file
 

qemu/test.config.go

@@ -4,7 +4,7 @@
 
 package qemukernel
 
-const testConfigVmlinuz = "../tools/qemu-debian-img/vmlinuz-bionic"
-const testConfigInitrd = "../tools/qemu-debian-img/initrd-bionic"
-const testConfigRootfs = "../tools/qemu-debian-img/bionic.img"
-const testConfigSampleKo = "../tools/qemu-debian-img/sample.ko"
+const testConfigVmlinuz = "../tools/qemu-debian-img/ubuntu1804.vmlinuz"
+const testConfigInitrd = "../tools/qemu-debian-img/ubuntu1804.initrd"
+const testConfigRootfs = "../tools/qemu-debian-img/ubuntu1804.img"
+const testConfigSampleKo = "../tools/qemu-debian-img/ubuntu1804.ko"