update start script

Author: wanwiset25

container-manager/start_xdpos.sh

@@ -4,6 +4,14 @@ current_dir="$(cd "$(dirname "$0")" && pwd)"
 network_name="docker_net"
 
 docker pull xinfinorg/subnet-generator:$version
+# Check the exit code
+if [ $? -eq 0 ]; then
+    echo "SUCCESS: Docker pull completed successfully"
+else
+    echo "FAILED: Docker pull failed with exit code $?"
+    exit 1
+fi
+
 mkdir -p generated/scripts
 
 if ! docker network inspect "$network_name" > /dev/null 2>&1; then