GitLab Community Edition on AWS with our machine image

Search for GitLab CE X.Y (X.Y represent version number) under Community AMIs. The latest version of GitLab CE will be fetched on first boot.

Launch a c4.large instance with open ports for ssh, http and https.
SSH into the instance with ubuntu@your-instance, edit the
/etc/gitlab/gitlab.rb file to your needs, and run

sudo gitlab-ctl reconfigure

Visit the public IP in a browser and sign in as the default user

username: root
password: 5iveL!fe

Troubleshooting and configuration options in the Omnibus documentation
Alternative installation methods
AWS AMI with a preloaded Omnibus package
Chinese GitLab CE mirror hosted by TUNA
Update a GitLab instance
Installation requirements
Compare GitLab CE with EE