Refactor role handling to improve debug output and streamline ROLE existence check

Author: sathiya-nhs

azure/components/aws-assume-role.yml

@@ -13,17 +13,20 @@ steps:
 
   - bash: |
       set -e
-      if [ -z "$role" ]; then
-        echo "ROLE is empty"
+      echo "##vso[task.setvariable variable=ROLE]$role"
+    env:
+      role: ${{ parameters.role }}
+    displayName: get role name
+
+  - bash: |
+      if [ -z "$(ROLE)" ]; then
+        echo "[DEBUG] ROLE is empty"
         echo "##vso[task.setvariable variable=ROLE_EXISTS]false"
       else
-        echo "ROLE value: $role"
-        echo "##vso[task.setvariable variable=ROLE]$role"
+        echo "[DEBUG] ROLE value: $(ROLE)"
         echo "##vso[task.setvariable variable=ROLE_EXISTS]true"
       fi
-    env:
-      role: ${{ parameters.role }}
-    displayName: get role name
+    displayName: "Debug ROLE value (empty or not)"
 
   - bash: |
       set -e