blob: 11e0a98117834b9ea30fdfc7efe5963659271573 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
#!/bin/bash
# generates user data, meta data, and seed.iso for cloud init. for Ubuntu
# requires the name of the vm as an argument
image_url="https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64.img"
sshkeysdir="/root/k"
scriptdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
dir_path="/var/lib/libvirt/images/.image_store"
src_file="${dir_path}/ubuntu24.04.qcow2"
config_dir="/var/lib/libvirt/images/.temp"
user_data="${config_dir}/user-data"
meta_data="${config_dir}/meta-data"
seed_iso="${config_dir}/seed.iso"
temp_img="${dir_path}/ubuntu_temp.img"
if [ $# -ne 1 ]; then
echo "Usage: $0 <vm-name>"
exit 1
fi
sudo mkdir -p "$dir_path"
sudo mkdir -p "$config_dir"
if [ ! -f "$src_file" ]; then
echo "source image does not exist! downloading..."
sudo wget -O "$temp_img" "$image_url"
echo "Converting to qcow2 format..."
sudo qemu-img convert -f raw -O qcow2 "$temp_img" "$src_file"
sudo rm "$temp_img"
fi
cat > "$user_data" << EOF
#cloud-config
users:
- name: ubuntu
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: sudo
shell: /bin/bash
runcmd:
- sudo growpart /dev/sda 1
- sudo resize2fs /dev/sda1
- sudo apt-get update
- sudo apt-get install -y vim git
- cd /home/ubuntu
- touch /home/ubuntu/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"
|
