1.9 KiB
1.9 KiB
cloudbuild
cloudbuild downloads, modifies and uploads VM templates for the CSC cloud (CloudStack) using publicly available images for common Linux distros.
Installing dependencies
Run the following in a Debian Docker/Podman container.
apt install golang-guestfs-dev
scripts/create-libguestfs-module.sh
Optional dependencies
If you are developing cloudbuild, you may wish to install guestfish, an interactive shell for guestfs:
apt install libguestfs-tools
To run:
make guestfish
><fs> add /path/to/your/template.img
><fs> run
><fs> inspect-os
><fs> # use the output from inspect-os to find the root partition
><fs> mount /dev/sda4 /
Creating the appliance
Next you need an appliance, which is a kernel + initrd + rootfs used by the VM created by guestfs. You have two options:
- Download an appliance:
make appliance-download
OR
- Create an appliance using the host's kernel:
make supermin-download make appliance
Building the program
make
Running the program
Make sure the following environment variables are set:
# these values must be obtained from the CloudStack web UI
export CLOUDSTACK_API_KEY=secret
export CLOUDSTACK_SECRET_KEY=secret
# set these to the distros for which cloudbuild will create templates
export DISTROS_TO_CHECK=ubuntu,fedora
# the modified templates will be temporarily moved here so that CloudStack
# can download them
export UPLOAD_DIRECTORY=/var/www/csc-cloud-images
# the modified templates (in the UPLOAD_DIRECTORY) must be downloadable
# from this base URL
export UPLOAD_BASE_URL=http://biloba.csclub.uwaterloo.ca/csc-cloud-images
# notification emails will be sent here
export EMAIL_RECIPIENT=root@csclub.uwaterloo.ca
# directory where SSH keys are stored to SSH into VMs created in CloudStack
export SSH_KEY_PATH=~/.ssh
Finally:
make run