The document discusses deploying web apps using configuration as code (CaC) and infrastructure as code (IaC) with Octopus Deploy. Octopus Deploy allows automating deployments through releases and runbooks that can be defined as code. The document demonstrates configuring Octopus Deploy with CaC stored in a repo to define the deployment process, variables, and runbooks. It also shows using Octopus Deploy with GitHub Actions to install the Octopus CLI, push packages, create releases, and run runbooks through a CI/CD pipeline.