Added drone

.drone.yml

@@ -8,8 +8,8 @@ pipeline:
     image: rics3n/drone-ansible
     secrets: [ ssh_key ]
     commands:
-      - echo "$SSH_KEY"
       - mkdir /root/.ssh && echo "$SSH_KEY" > /root/.ssh/id_rsa && chmod 0600 /root/.ssh/id_rsa
+      - ssh-keyscan -H lund.fsfeurope.org >> ~/.ssh/known_hosts
       - ansible-playbook playbook.yml -i hosts
     when:
        branch: master