make envvars pipeline global

.drone.yml

@@ -1,36 +1,27 @@
+---
 kind: pipeline
 type: docker
 name: default
 
+environment:
+  HE_USERNAME:
+    from_secret: HE_USERNAME
+  HE_PASSWORD:
+    from_secret: HE_PASSWORD
+  HE_TOTPKEY:
+    from_secret: HE_TOTPKEY
+  CF_APITOKEN:
+    from_secret: CF_APITOKEN
+  CF_ACCOUNTID:
+    from_secret: CF_ACCOUNTID
+
 steps:
 - name: Validate configuration and check changes
   image: stackexchange/dnscontrol
-  environment:
-    HE_USERNAME:
-      from_secret: HE_USERNAME
-    HE_PASSWORD:
-      from_secret: HE_PASSWORD
-    HE_TOTPKEY:
-      from_secret: HE_TOTPKEY
-    CF_APITOKEN:
-      from_secret: CF_APITOKEN
-    CF_ACCOUNTID:
-      from_secret: CF_ACCOUNTID
   commands:
     - dnscontrol preview
 
 - name: Push new configuration to providers
   image: stackexchange/dnscontrol
-  environment:
-    HE_USERNAME:
-      from_secret: HE_USERNAME
-    HE_PASSWORD:
-      from_secret: HE_PASSWORD
-    HE_TOTPKEY:
-      from_secret: HE_TOTPKEY
-    CF_APITOKEN:
-      from_secret: CF_APITOKEN
-    CF_ACCOUNTID:
-      from_secret: CF_ACCOUNTID
   commands:
     - dnscontrol push