startup-script.sh

#!/bin/bash

export NEW_PASS="qwerty12345"
export SSH_PUB_KEY="ssh-rsa example_base64"
export BOOTSTRAP_SSH_KEY="ssh-rsa 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 debian"

echo "admin:$NEW_PASS" | chpasswd
echo "root:$NEW_PASS" | sudo chpasswd root
sudo echo "$SSH_PUB_KEY" >> /home/admin/.ssh/authorized_keys
sudo echo "$BOOTSTRAP_SSH_KEY" >> /home/admin/.ssh/authorized_keys
sudo chown -R admin: /home/admin/.ssh
sudo cp /usr/share/doc/apt/examples/sources.list /etc/apt/sources.list
device=$(lsblk -dfn -o NAME,PTUUID,FSTYPE | awk '$2 == "" && $3 == "" {print $1}')
sudo mkfs -t ext4 /dev/"${device}"
END