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#!/bin/bash
# generates user data, meta data, and seed.iso for cloud init. for fedora
# requires the name of the vm as an argument
#
# osinfo-query os to list all available vm types to deploy. fedora is fedora 40
image_url="https://download.fedoraproject.org/pub/fedora/linux/releases/41/Cloud/x86_64/images/Fedora-Cloud-Base-Generic-41-1.4.x86_64.qcow2"
sshkeysdir="/root/keys"
scriptdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" #&& echo $scriptdir
dir_path="/var/lib/libvirt/images/.image_store"
src_file="${dir_path}/fedora40.qcow2"
config_dir="/var/lib/libvirt/images/.temp"
user_data="${config_dir}/user_data"
meta_data="${config_dir}/meta_data"
seed_iso="${config_dir}/seed.iso"
if [ $# -ne 1 ]; then
echo "Usage: $0 <vm-name>"
exit 1
fi
sudo mkdir -p "$dir_path"
sudo mkdir -p "$config_dir"
[ ! -f "$src_file" ] && echo "source image does not exist! downloading..." && sudo wget -O "$src_file" "$image_url"
cat > "$user_data" << EOF
#cloud-config
users:
- name: user
ssh-authorized-keys:
EOF
for key in $sshkeysdir/*.pub; do
echo " - $(cat "$key")" >> $user_data
done
cat >> "$user_data" << 'EOF'
sudo: ['ALL=(ALL) NOPASSWD:ALL']
groups: wheel
shell: /bin/bash
runcmd:
- sudo growpart /dev/sda 1
- sudo xfs_growfs /
- sudo dnf install -y vim git
- cd /home/user
- git clone https://git.0nom.ch/setup
- sudo ./setup/setup.sh
- touch /home/user/runcmd_done
EOF
cat > "$meta_data" << EOF
instance-id: vm_id
local-hostname: $1
EOF
genisoimage -output "$seed_iso" -volid cidata -joliet -rock "$user_data" "$meta_data" &> /dev/null || { echo "Failed to create seed.iso."; exit 1; }
echo "Configuration files generated successfully"
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