FLOSS UK had two existing virtual machines running different Linux distributions (RedHat and Debian) on a legacy platform. I migrated all the services onto new cloud instances, and at the same time converted all the manual configuration to Ansible playbooks stored in Git for version control. I also manage and maintain the new servers, keeping them up to date and dealing with any feature requests.
Services migrated and managed include: SMTP (Postfix), IMAP (Dovecot) and web (Apache and nginx). I have also added TLS connections where appropriate using LetsEncrypt.