When you first provision an instance, DigitalOcean will email you a link to one or more basic setup guides for the OS you selected. Many providers have similar guides, but even if yours doesn't, the only tasks specific to your provider will be the interaction between the provider-level services (such as firewalls, DNS control, and load balancers) and your instance; and these are specific only inasmuch as every provider's control panels interfaces and APIs for these services differ from one another.