# Add Docker's official GPG key:
sudo apt-get update -y
sudo apt-get install ca-certificates curl -y
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | sudo tee /etc/apt/sources.list.d/docker.list

sudo apt-get update -y
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin docker-compose jq -y

[ -e docker-compose.yml ] && rm -- docker-compose.yml
[ ! -d state ] && mkdir state
wget https://gist.github.com/jsh1n/bcb63d961659b3396ac3871eb567f15e/raw/docker-compose.yml
sudo docker-compose up -d
echo "wait for docker-compose starts 20 seconds"
sleep 20
echo "Session Key is below:"
sudo docker-compose exec -T avail-validator curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "author_rotateKeys", "params":[]}' http://localhost:9944 | jq .result