We usually want to prepare a fresh Ubuntu system to test our application or prepare a development environment. The following shows how to provision a fresh Ubuntu on your local machine by KVM virtualization technology.
Repository
https://github.com/tai271828/ubuntu-setup-automationPre-requirement
Ubuntu Xenial desktop- libvirt.pc (provided by libvirt-dev)
- Python.h (provided by libpython3.5-dev)
- cloud-localds (provided by cloud-image-utils)
- optional: You may want to have virt-manager or virt-viewer in your system to see the provisioned system.
Setup
sudo apt-get install libvirt-dev
sudo apt-get install libpython3.5-dev
sudo apt-get install cloud-image-utils
virtualenv -p python3 venv
git clone https://github.com/tai271828/ubuntu-setup-automation.git
source venv/bin/activate
If you want to connect the KVM system later over SSH, you need to paste your public ssh key in this session (replace @@my_ssh_public_key@@ ). If you don't have a key or just want to use password to login, remove the whole session in order that cloud-init won't be confused by the invalid string @@my_ssh_public_key@@.
ssh_authorized_keys:
- @@my_ssh_public_key@@
Run
In venv python virtual environment,(venv) ubuntu-setup-automation/scripts⟫ cloud-localds /tmp/my-seed.img ../data/user-data && sudo cp /tmp/my-seed.img /var/lib/libvirt/images/ && sudo ./prepare-kvm-deployment && ../bin/create-instance-kvm
- cloud-localds /tmp/my-seed.img ../data/user-data
- This command prepares the image to inject user-data used by cloud-init later.
- sudo cp /tmp/my-seed.img /var/lib/libvirt/images/
- This command mv the user-data image, a.k.a my-seed.img, to the folder with libvirt accessible permission, so the user-data image could be used by qemu later.
- sudo ./prepare-kvm-deployment && ../bin/create-instance-kvm
- This command will
- Fetch the official Ubuntu iso
- Patch the iso so the iso has a preseed file to answer all questions prompted in the installation stage.
- Initialize the fresh installed Ubuntu system by cloud-init.
