tencent cloud

Overview

During update and switch of your business version, to ensure that the business in the production environment is stable, we recommend you use grayscale release:
This document uses a deployed Express project as an example to describe how to perform grayscale release.

Prerequisites

You have developed a project.

Directions

1. Set the .env file in the production environment:

   TENCENT_SECRET_ID=xxxxxxxxxx
   TENCENT_SECRET_KEY=xxxxxxxx
   STAGE=prod

2. Deploy the $latest version in the production environment and switch 10% traffic to it (90% traffic will be switched to the last published function version N):

   sls deploy --inputs.traffic=0.1 

3. Monitor the $latest version and switch 100% traffic to this version after it becomes stable:

   sls deploy --inputs.traffic=1.0

4. After all traffic is successfully switched, the stable version needs to be marked, so that you can easily and quickly roll back to this version if a problem occurs in the production environment when a new feature is published. Deploy and publish the function version N+1 and switch all traffic to it:

   sls deploy --inputs.publish --inputs.traffic=0