basessh: try and set /usr/bin/python for the delegations to batcave01 for python3 using hosts.

Signed-off-by: Kevin Fenzi <kevin@scrye.com>

roles/basessh/tasks/main.yml

@@ -161,6 +161,8 @@
         group=root
         mode=0600
         state=directory
+  vars:
+    ansible_python_interpreter: /usr/bin/python
   delegate_to: "batcave01.phx2.fedoraproject.org"
   run_once: true
   changed_when: False
@@ -202,6 +204,8 @@
   shell: "ssh-keygen -s {{private}}/files/ssh/{{env}}_ca_host_key -I {{inventory_hostname}} -h -n {{ sign_hostnames|join(',') }} -V {{sign_validity}} -z `date +%s` {{pubkeydir}}/{{inventory_hostname}}{{item}}.pub"
   delegate_to: "batcave01.phx2.fedoraproject.org"
   with_items: "{{certs_to_sign}}"
+  vars:
+    ansible_python_interpreter: /usr/bin/python
   tags:
   - basessh
   - sshd_cert