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Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

王林
Release: 2024-09-11 06:43:06
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Yesterday, I wrote an article titled "Deploying a Java Azure Function on Azure Container Apps."

In that entry, I mentioned using the Azure's integrated management capabilities and I want to clarify what that means and how it differs from previous methods in this article.

Old Method: Creating with az containerapp create

Azure Container Apps is one of Azure's container execution environments, allowing you to run any containerized service. Previously, if you wanted to run Azure Functions in Azure Container Apps, you would create an instance using the following command:

az containerapp create \
--name general-container-app \
--resource-group $RESOURCE_GROUP_NAME \
--environment $CONTAINER_ENVIRONMENT \
--registry-server $CONTAINER_REGISTRY_SERVER \
--image $CONTAINER_REGISTRY_SERVER/$C_IMAGE_NAME:$C_IMAGE_TAG \
--target-port 80 \
--ingress external \
--query properties.configuration.ingress.fqdn
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After executing the command, you would see a message like this:

Container app created. Access your app at https://general-container-app.niceocean-********.eastus.azurecontainerapps.io/
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You could then use a curl command to connect to your Azure Functions service:

curl https://general-container-app.niceocean-********.eastus.azurecontainerapps.io/api/httpexample?name=World
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Upon accessing the Azure Container Apps Environment, you would see that the general-container-app is created as a Container App, and this management interface is available for any deployed containerized application.

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

https://raw.githubusercontent.com/yoshioterada/Azure-Functions-Deploy-To-Azure-Container-Apps/main/images/ACA-Instance-for-Azure-Functions.png

New Method: Creating with az functionapp create

The new method allows you to create Azure Functions in Azure Container Apps using the az functionapp create command instead of az containerapp create.

az functionapp create \
--name $AZURE_FUNCTION_NAME \
--resource-group $RESOURCE_GROUP_NAME \
--environment $CONTAINER_ENVIRONMENT \
--storage-account $STORAGE_NAME \
--workload-profile-name "Consumption" \
--max-replicas 15 \
--min-replicas 1 \
--functions-version 4 \
--runtime java \
--image $CONTAINER_REGISTRY_SERVER/$C_IMAGE_NAME:$C_IMAGE_TAG \
--assign-identity
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With this command, your Azure Functions will be created in Azure Container Apps, and the management interface will clearly show that it is an Function App.

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

This means Azure Functions can now be managed through a dedicated Azure Functions management interface, making it difference from other container application.

However, there are some differences between the management features provided in Azure App Service and those available for Azure Functions on Container Apps. For instance, certain functionalities like diagnostic tools, deployment features, and others may not be available.

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

Reference: Azure Functions on App Service (Portal)

For comparison, here’s the management interface for Azure Functions deployed on Azure App Service.

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

The differences in management capabilities between App Service and Azure Container Apps can include:

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

  • Pick up:
- Diagnose and solve problems
- Microsoft Defender for Cloud
- Events (preview)
- Log stream
- Deployment
- App Service plan
- Development Tools
- Monitoring
- Support + troubleshooting
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Some may think that the lack of certain features suggests missing functionality.

However, when deployed to Azure Container Apps, the operating environment is container-based, which changes deployment and management methods. Features not included in the Azure Functions management interface will need to be managed separately through the Azure Container Apps interface.

Management of Containers in Azure Container Apps

When using the az functionapp create command to create an Azure Functions instance on Azure Container Apps, a new resource group is automatically created that houses the container instance.

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

In my environment, the resource group name follows this convention:

$CONTAINER_ENVIRONMENT_FunctionApps_$UUID

You will see that an Azure Container Apps instance named after your specified $AZURE_FUNCTION_NAME has been generated.

When you click on this instance, you'll be directed to a management interface specific to Azure Container Apps, where the Azure Functions run as container instances.

Comparison of Two Methods for Deploying Azure Functions to Azure Container Apps

Azure Container Apps provides different CI/CD and deployment methods than Azure App Service. It also allows for features offered at the container level, such as Dapr and Service Connector, which can be utilized.

结论

以前,可以通过将 Azure Functions 容器化在容器执行环境中来运行 Azure Functions,但 Azure Functions 没有专用的管理界面。

通过这种新方法,Azure Functions 和 Azure 容器应用程序已集成,提供具有关联的 Azure Functions 管理界面的容器环境。

我知道一些客户在 Azure Kubernetes 服务 (AKS) 上运行 Azure Functions 容器。以前,他们缺乏专门的管理界面。但是,通过部署到 Azure 容器应用程序,他们现在可以使用 Azure Functions 管理,同时享受与在 AKS 上管理操作相比管理 Azure 容器应用程序的简单性。

将 Azure Functions 部署到 Azure 容器应用程序的方法可能会进一步发展。我期待看到事情如何发展。

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source:dev.to
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