jekyll configuration: using variable for dev and prod deploy dir

jekyll/gitlab-ci.yml

@@ -8,7 +8,6 @@ variables:
 #  JEKYLL_ENV: production
   LC_ALL: C.UTF-8
   BUILD_DIR: public/
-  DEPLOY_DIR: public_html/TLLALinearity2022/
 
 cache:
   paths:
@@ -16,8 +15,6 @@ cache:
 
 .build:
   stage: build
-  variables:
-    CONFIG: _config.yml
   before_script:
     - apt-get update -qy
     - gem install bundler
@@ -62,17 +59,21 @@ build.dev:
 
 build.prod:
   extends: .build
+  variables:
+    CONFIG: _config.yml
   only:
     - web.prod
 
 deploy.dev:
   extends: .deploy
   variables:
-    DEPLOY_DIR: public_html/TLLA/dev/2022/
+    DEPLOY_DIR: $DEV_DEPLOY_DIR
   only:
     - web.dev
 
 deploy.prod:
   extends: .deploy
+  variables:
+    DEPLOY_DIR: $PROD_DEPLOY_DIR
   only:
     - web.prod