You can sign up to an application using the CLI tool, REST API or the PPaaS Console as shown below:
Sample application JSON
{ "artifactRepositories": [ { "alias": "wso2as-521-worker", "privateRepo": false, "repoUrl": "https://github.com/imesh/stratos-php-applications.git", "repoUsername": "", "repoPassword": "" }, { "alias": "wso2as-521-manager", "privateRepo": false, "repoUrl": "https://github.com/imesh/stratos-tomcat-applications.git", "repoUsername": "", "repoPassword": "" } ] }