Software Architect's Handbook

Function deployment

When functions are deployed in a serverless system, they go through a deployment pipeline. While the steps in the pipeline can vary depending on the cloud provider, there are some fundamental steps that typically take place.

Developers must first upload the function definition, which contains specifications about the function as well as the code. The specifications and metadata include things such as a unique identifier, name, description, version identifier, runtime language, resource requirements, execution timeout (the maximum time a function call can execute until it is terminated), created date/time, and last modified date/time. When a function is invoked, it is invoked for a specific function version. The version ...