Make sure idna is installed. (#800)

tests/integration/targets/x509_certificate_convert/tasks/main.yml

@@ -8,6 +8,11 @@
 # and should not be used as examples of how to write Ansible roles #
 ####################################################################
 
+- name: Make sure the Python idna library is installed
+  pip:
+    name: idna
+    state: present
+
 - name: Generate privatekey
   openssl_privatekey:
     path: '{{ remote_tmp_dir }}/privatekey.pem'