added docker compose

prep-grid-vm.sh

@@ -3,13 +3,15 @@ apt update
 # install ops tools
 apt install sudo nmon tmux tcpdump nano -y
 
-# install Docker
+# install Docker + docker-compose
 apt install ca-certificates curl gnupg lsb-release -y
 curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
 echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
 apt update
 apt install docker-ce docker-ce-cli containerd.io -y
-service docker start
+systemctl start docker
+curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+chmod +x /usr/local/bin/docker-compose
 
 # set TF users
 wget https://docs.grid.tf/threefold_public/public/raw/branch/master/add-tf-users.sh