Add SSH key to execturo

Change-Id: I7e39a1c7e46312346f73d17711f552c8e10f9301

playbooks/molecule/pre-run.yaml

@@ -33,6 +33,21 @@
         src: "{{ ansible_user_dir }}/.cache/molecule/{{ zuul.project.short_name }}/default/instance_config.yml"
       register: _molecule_instance_config
 
+    - name: Grab the Molecule SSH key
+      slurp:
+        src: "{{ ansible_user_dir }}/.cache/molecule/{{ zuul.project.short_name }}/default/id_rsa"
+      register: _molecule_ssh_key
+
+    - name: Copy the SSH key down to exector
+      fetch:
+        src: "{{ ansible_user_dir }}/.cache/molecule/{{ zuul.project.short_name }}/default/id_rsa"
+        dest: "{{ ansible_user_dir }}/.ssh/id_molecule"
+        flat: yes
+
+    - name: Add SSH key to the executor
+      delegate_to: localhost
+      command: ssh-add {{ ansible_user_dir }}/.ssh/id_molecule
+
     - name: Add all of the hosts to the inventory
       add_host:
         name: "{{ item.instance }}"