tests: Clear Vault-related environment variables in test host

These can interfere with tests causing bizarre failures

Author: mossblaser

molecule/test_deployment/molecule.yml

@@ -173,6 +173,12 @@ provisioner:
     connection:
       pipelining: true
 
+  # Don't accidentally use any ambient Vault environment variables
+  env:
+    VAULT_ADDR: ""
+    VAULT_CACERT: ""
+    VAULT_TOKEN: ""
+  
   inventory:
     group_vars:
       vault_all:

molecule/test_provisioning/molecule.yml

@@ -70,6 +70,12 @@ provisioner:
     connection:
       pipelining: true
 
+  # Don't accidentally use any ambient Vault environment variables
+  env:
+    VAULT_ADDR: ""
+    VAULT_CACERT: ""
+    VAULT_TOKEN: ""
+  
   inventory:
     group_vars:
       all: