fix #13: create worker subdomain during deployment

.github/workflows/deploy.yml

@@ -40,6 +40,28 @@ jobs:
 
         env:
           CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+      
+      # This is a temporary workaround to fix issue #13
+      # On a new Cloudflare account, the terraform apply will fail with `workers.api.error.subdomain_required`
+      # This may be due to the account not having a worker subdomain yet, so we create a dummy worker and then delete it.
+      # Cloudflare should allocate a worker subdomain after this.
+      # https://github.com/cloudflare/terraform-provider-cloudflare/issues/3304
+      - name: Create worker subdomain
+        id: create_dummy_worker
+        run: |
+          curl --request PUT --fail-with-body \
+               --url https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/workers/scripts/dummy-ib4db6ntj5csdef3 \
+               --header 'Authorization: Bearer '$CLOUDFLARE_API_TOKEN \
+               --header 'Content-Type: application/javascript' \
+               --data 'addEventListener('\''fetch'\'', (event) => event.respondWith(new Response('\''OK'\'')))'\
+          
+          curl --request DELETE --fail-with-body \
+               --url https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/workers/scripts/dummy-ib4db6ntj5csdef3 \
+               --header 'Authorization: Bearer '$CLOUDFLARE_API_TOKEN \
+               --header 'Content-Type: application/json'
+        env:
+          CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          CLOUDFLARE_ACCOUNT_ID: ${{ steps.fetch_account_id.outputs.account_id }}
 
       - name: Install packages
         run: |