Add support for docker compose.

configure-instance.sh

@@ -5,7 +5,7 @@ if [ -z "$(which docker-compose)" ]; then
 fi
 
 # Docker-Compose version check, to prevent "Unsupported configuration option"
-COMPOSE_VERSION=$(docker-compose version --short)
+COMPOSE_VERSION=$(docker-compose version --short 2>/dev/null || docker compose version --short 2>/dev/null)
 REQUIRED_COMPOSE_VERSION="1.28.0"
 if [[ $(printf '%s\n' "$REQUIRED_COMPOSE_VERSION" "$COMPOSE_VERSION" | sort -V | head -n1) != $REQUIRED_COMPOSE_VERSION ]]; then
     echo "Your docker-compose version of $COMPOSE_VERSION is too old. Please upgrade to $REQUIRED_COMPOSE_VERSION or higher."