If you want to find out more about zero-downtime and blue-green deployment practices, take a look at the following resources:
- Zero Downtime Updates with HashiCorp Terraform: https://www.hashicorp.com/blog/zero-downtime-updates-with-terraform
- Blue-Green Deployment by Martin Flower: https://martinfowler.com/bliki/BlueGreenDeployment.html
- Feature Toggle by Martin Flower: https://martinfowler.com/articles/feature-toggles.html
- Blue-Green Deployment on Azure with Zero Downtime (article): http://work.haufegroup.io/Blue-Green-Deployment-on-Azure/
- Feature Flags Guide: http://featureflags.io/
- LaunchDarkly Uses Cases: https://launchdarkly.com/use-cases/
