feat: customizable CI stages

templates/nix-gitlab-ci.yml

@@ -23,10 +23,18 @@ spec:
       type: string
       description: |
         Which version of the Nix CI image to use. Using a tag/version is recommended.
+    stage_build:
+      type: string
+      description: The CI stage for building the dynamic pipeline.
+      default: build
+    stage_trigger:
+      type: string
+      description: The CI stage for triggering the dynamic pipeline.
+      default: trigger
 ---
 stages:
-  - build
-  - trigger
+  - $[[ inputs.stage_build ]]
+  - $[[ inputs.stage_trigger ]]
 variables:
   # These can be overriden, see https://docs.gitlab.com/ci/variables/#cicd-variable-precedence
   # which image should be used by default.
@@ -34,7 +42,7 @@ variables:
   # default cache stategy
   NIX_CI_CACHE_STRATEGY: $[[ inputs.cache_strategy ]]
 nix-ci:build:
-  stage: build
+  stage: $[[ inputs.stage_build ]]
   image: $NIX_CI_IMAGE
   cache:
     - key:
@@ -92,7 +100,7 @@ nix-ci:build:
       dotenv: trigger.env
 
 nix-ci:trigger:
-  stage: trigger
+  stage: $[[ inputs.stage_trigger ]]
   needs:
     - nix-ci:build
   trigger: