fix: only run CDN purge for production storybook (#4321)

Author: pomfrida

.github/workflows/_purge_cdn.yaml

@@ -8,19 +8,17 @@ on:
       endpoint:
         type: string
         default: artefacts
-# Because of limitations in how to set environment context when calling reusable workflows,
-# we are using ENV variables directly in this one. Not pretty, but it works.
-env:
-  SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
-  AZURE_CDN_PROFILE_NAME: ${{ vars.AZURE_CDN_PROFILE_NAME }}
-  AZURE_CDN_ENDPOINT_NAME: ${{ vars.AZURE_CDN_ENDPOINT_NAME }}
-  AZURE_STORYBOOK_ENDPOINT_NAME: ${{ vars.AZURE_STORYBOOK_ENDPOINT_NAME }}
-  AZURE_RESOURCE_GROUP: ${{ vars.AZURE_RESOURCE_GROUP }}
 jobs:
   purge:
     name: Purge the cdn to refresh cache
     runs-on: ubuntu-latest
     environment: ${{ inputs.environment }}
+    env:
+      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
+      AZURE_CDN_PROFILE_NAME: ${{ vars.AZURE_CDN_PROFILE_NAME }}
+      AZURE_CDN_ENDPOINT_NAME: ${{ vars.AZURE_CDN_ENDPOINT_NAME }}
+      AZURE_STORYBOOK_ENDPOINT_NAME: ${{ vars.AZURE_STORYBOOK_ENDPOINT_NAME }}
+      AZURE_RESOURCE_GROUP: ${{ vars.AZURE_RESOURCE_GROUP }}
     steps:
       - name: Az CLI login 🔑 # Using federated credential
         uses: azure/login@v1

.github/workflows/publish_storybook.yaml

@@ -7,9 +7,9 @@ on:
         required: false
         type: choice
         options:
-          - development
           - production
-        default: 'development'
+          - development
+        default: 'production'
   push:
     branches:
       - main
@@ -177,9 +177,12 @@ jobs:
 
   purge-cdn:
     needs: [publish-storybook]
+    # Only purge CDN for production. On push to main, environment is undefined,
+    # which correctly skips this job since dev storybook has no CDN.
+    if: github.event.inputs.environment == 'production'
     name: Purge cdn
     uses: ./.github/workflows/_purge_cdn.yaml
     secrets: inherit
     with:
-      environment: ${{ github.event.inputs.environment || 'development' }}
+      environment: production
       endpoint: storybook

README.md

@@ -6,7 +6,8 @@ While the design system itself lives in [Figma][], this repository contains impl
 
 ## Quick links
 
-- [Storybook](https://storybook.eds.equinor.com/)
+- [Storybook (prod)](https://storybook.eds.equinor.com/)
+- [Storybook (dev)](https://s478stedsstorybookdev.z16.web.core.windows.net/) – latest from `main`
 - [Figma](https://www.figma.com/files/682286909510540417/team/590517879490131675/EDS---Equinor-Design-System?fuid=677437722215124736)
 - [Storefront](https://eds.equinor.com)
 - [Slack](https://equinor.slack.com/archives/CJT20H1B9)