Adds variables group

Author: Raywire

azure-pipelines.yml

@@ -7,6 +7,9 @@ trigger:
 - master
 - develop
 
+variables:
+- group: postgres-express-node
+
 pool:
   vmImage: 'ubuntu-latest'
 
@@ -15,6 +18,17 @@ steps:
   inputs:
     versionSpec: '10.x'
   displayName: 'Install Node.js'
+- powershell: |
+    # Using an input-macro:
+    Write-Host "This works: $(mySecret)"
+
+    # Using the env var directly:
+    Write-Host "This does not work: $env:MYSECRET"
+
+    # Using the mapped env var:
+    Write-Host "This works: $env:MY_MAPPED_ENV_VAR"    # Recommended
+  env:
+    MY_MAPPED_ENV_VAR: $(mySecret)
 
 - script: |
     npm install