feat(ssh): do not recreate key if exists

Fixes #37

Signed-off-by: Matej Focko <mfocko@redhat.com>

playbooks/roles/ssh/tasks/main.yml

@@ -1,10 +1,16 @@
 ---
+- name: Check if SSH key exists
+  stat:
+    path: ~/.ssh/id_ed25519
+  register: ssh_key
+
 - name: Generate SSH key
   user:
     name: mfocko
     generate_ssh_key: yes
     ssh_key_type: ed25519
     ssh_key_comment: "$HOSTNAME-{{ ansible_facts['distribution'] }}"
+  when: not ssh_key.stat.exists
 
 - name: Install SSH config
   template: