Add docker-compose version check.

configure-instance.sh

@@ -1,14 +1,22 @@
-echo "Enter a hostname for the Frontend (eg: piped.kavin.rocks):"
-read frontend
-
-echo "Enter a hostname for the Backend (eg: pipedapi.kavin.rocks):"
-read backend
+# Check if Docker-Compose is not installed
+if [ -z "$(which docker-compose)" ]; then
+    echo "Docker-Compose is not installed. Please install it first from https://docs.docker.com/compose/install/#install-compose."
+    exit 1
+fi
 
-echo "Enter a hostname for the Proxy (eg: pipedproxy.kavin.rocks):"
-read proxy
+# Docker-Compose version check, to prevent "Unsupported configuration option"
+COMPOSE_VERSION=$(docker-compose version --short)
+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."
+    echo "See https://docs.docker.com/compose/install/#install-compose for installation instructions."
+    exit 1
+fi
 
-echo "Enter the reverse proxy you would like to use (either caddy or nginx):"
-read reverseproxy
+echo "Enter a hostname for the Frontend (eg: piped.kavin.rocks):" && read -r frontend
+echo "Enter a hostname for the Backend (eg: pipedapi.kavin.rocks):" && read -r backend
+echo "Enter a hostname for the Proxy (eg: pipedproxy.kavin.rocks):" && read -r proxy
+echo "Enter the reverse proxy you would like to use (either caddy or nginx):" && read -r reverseproxy
 
 rm -rf config/
 rm -f docker-compose.yml
@@ -19,6 +27,7 @@ sed -i "s/FRONTEND_HOSTNAME/$frontend/g" config/*
 sed -i "s/BACKEND_HOSTNAME/$backend/g" config/*
 sed -i "s/PROXY_HOSTNAME/$proxy/g" config/*
 
+# The openj9 image does not support aarch64
 if [[ "$(uname -m)" == "aarch64" ]]; then
     sed -i "s/piped:latest/piped:hotspot/g" config/*
 fi