What are Deployment Slots?
Deployment slots are a way to manage multiple versions of your Azure Functions app simultaneously. They allow you to safely test new versions of your functions before deploying them to production. This minimizes the risk of impacting your live application.
Types of Deployment Slots
Azure Functions supports the following types of deployment slots:
- Staging Slots: Used for testing and experimenting with new code.
- Production Slots: Represents your live, production environment.
- Development Slots: A slot that mirrors the production slot for testing.
How to Deploy to a Slot
You can deploy your function app to a specific slot using the Azure portal, Azure CLI, or PowerShell.
Azure CLI Example
az functionapp deployment slot create --resource-group --name staging --role-name staging --consumption-plan-location --name production
PowerShell Example
New-AzFunctionAppDeploymentSlot -ResourceGroupName -Name staging -FunctionApp
Key Considerations
- Traffic Routing: You can control how traffic is routed between slots.
- Monitoring: Monitor your slots to ensure optimal performance.
- Rollbacks: Easily roll back to a previous version of your app.