Use ansible_facts variable

Without this change the "Import variables specific to distribution"
tasks fail with "Could not find file on the Ansible Controller..."
on environments with inject facts disabled.

This changes the tests to run with ansible with
inject_facts_as_vars = false and fixes other roles and playbooks.

tests/vault/test_vault_standard.yml

@@ -57,18 +57,18 @@
     register: result
     failed_when: result.vault.data != 'Hello World.' or result.changed
 
-  - name: Retrieve data from standard vault into file {{ ansible_env.HOME }}/data.txt.
+  - name: Retrieve data from standard vault into file {{ ansible_facts['env'].HOME }}/data.txt.
     ipavault:
       ipaadmin_password: SomeADMINpassword
       name: stdvault
-      out: "{{ ansible_env.HOME }}/data.txt"
+      out: "{{ ansible_facts['env'].HOME }}/data.txt"
       state: retrieved
     register: result
     failed_when: result.changed or result.failed or (result.vault.data | default(false))
 
   - name: Verify retrieved data.
     slurp:
-      src: "{{ ansible_env.HOME }}/data.txt"
+      src: "{{ ansible_facts['env'].HOME }}/data.txt"
     register: slurpfile
     failed_when: slurpfile['content'] | b64decode != 'Hello World.'
 
@@ -93,7 +93,7 @@
       ipaadmin_password: SomeADMINpassword
       name: stdvault
       vault_type: standard
-      in: "{{ ansible_env.HOME }}/in.txt"
+      in: "{{ ansible_facts['env'].HOME }}/in.txt"
     register: result
     failed_when: not result.changed