Adding config file

.gitlab-ci.yml

@@ -90,6 +90,8 @@ spack:setup:
       fi
 
     - mkdir -p /stack/spack/etc
+    - 'echo "config: { install_tree: { root: /stack/spack/opt/spack } }" > /stack/spack/etc/config.yaml'
+
 
 
 spack:install_compilers: