add readme on how to create OS template

README.md

@@ -0,0 +1,17 @@
+You will need a working OS template to work with this project.
+
+Easy solution create an OS template:
+- mount the archlinux installation .iso in a VM
+- run `pacstrap /mnt base linux openssh`
+- run `ln -s /usr/lib/systemd/system/sshd.service /mnt/etc/systemd/system/multi-user.target.wants/sshd.service`
+- run `fsarchiver savedir /tmp/os_template.fsa /mnt`
+- download `/tmp/os_template.fsa`
+- upload the `os_template.fsa` anywhere so that it can be downloaded with wget
+
+Some notes on the above:
+- base and linux are the only packages to run a VM
+- you will need sshd to operate the VM, so create the symlink to make it start with the OS
+- fsarchiver is very good at preserving OS data
+- the initrd will dump that template to the encrypted disk
+- the same procedure can be used with any distribution, but we didn't test that yet
+

creator_functions.sh

@@ -23,6 +23,7 @@ create_dirs() {
   mkdir -p "${ROOT}/usr/lib"
   mkdir -p "${ROOT}/dev"
   mkdir -p "${ROOT}/etc"
+  mkdir -p "${ROOT}/mnt"
   mkdir -p "${ROOT}/proc"
   mkdir -p "${ROOT}/run"
   mkdir -p "${ROOT}/sys"

init_functions.sh

@@ -106,6 +106,5 @@ github_ssh_key() {
 }
 
 mount_root() {
-  mkdir /mnt
   mount /dev/vda1 /mnt
 }