Set the values file by target environment

If the branch name is:
 - test
 - starts with test-
 - ends in -test
 - has *-test/*
 - has */test-*
then test

If the branch name is:
 - main
then prod

Otherwise:
stage

.github/workflows/build-dockerhub.yml

@@ -20,11 +20,14 @@ jobs:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
+      - name: Set the K8S Environment
+        run: echo "K8S_DEPLOY_ENVIRONMENT=$($GITHUB_WORKSPACE/.github/workflows/get-k8s-environment.sh)" >> "$GITHUB_ENV"
+
       - name: Read chart yaml to get version for docker tag
         id: image-tag
         uses: KJ002/[email protected]
         with:
-          file: 'charts/prod-oralhistory-values.yaml'
+          file: 'charts/${{ env.K8S_DEPLOY_ENVIRONMENT }}-oralhistory-values.yaml'
           key-path: '["image", "tag"]'
 
       - name: Report image tag

.github/workflows/get-k8s-environment.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+
+case "$GITHUB_REF" in
+    test | test-* | */test | */test-* | *-test/* | *-test)
+      echo test ;;
+    main)
+      echo prod ;;
+    *)
+      echo stage ;;
+esac