azure function deployment slots - Deployment technologies in Azure Functions bs888 slot

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But Azure Functions have also a full range of continuous deployment and integration options provided by Azure App Service and you can deploy an Azure Function directly from a CI/CD pipeline in Azure DevOps.

How to setup CI with Azure App Service using GitHub Actions and deployment slots.

Azure App Service Deployment Slots are separate deployment environments within an App Service instance. They allow you to host multiple versions of your application simultaneously.

Deploying a function app without downtime should be standard practice for anyone working with Azure Functions, but it does not come out of the box. It requires an understanding of how function apps gets configured, how deployment slots can help and why warmup does not necessarily mean your solution is up and running. In this post I will go through how this can be achieved using CD-pipelines in Azure DevOps.