1. A method comprising: deploying, using a computer system, a first version of a composite template including a container template and a workload template to a first computer system so as to create plural containers within said computer system, deploy said container template so as to configure a first container of said plural containers, and deploy said workload template so as to install and configure a first workload in said first container; and deploying a second version of said composite template to a second computer system separate from said first computer system, said second version being the same as said first version or being obtained by modifying said first version.