Azure Container Apps

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Azure Container Apps (ACA) is a fully managed platform that enables you to run containerized applications leveraging the power of Kubernetes orchestration while abstracting away the complexities of cluster management, simplifying the deployment and management of containerized apps. In this article, I present the benefits of this service and how to deploy an application to ACA using GitHub Actions.

This service allows you to have serverless applications based on containers, and it can be used to deploy API endpoints, host background processing applications, handle even-driven processing and run microservices. Some benefits of ACA are:

• Automatic Scaling: provides the possibility to automatically scale your apps horizontally, based on traffic, ensuring that the apps will handle increased traffic without downtime or performance degradation, ensuring a smooth user experience.
• Powered by Kubernetes: offers a fully managed experience for deploying containerized applications without needing direct access to Kubernetes APIs or cluster management (ACA does not provide direct access to Kubernetes API, so in case you need to have access to it, consider using the Azure Kubernetes Service — AKS), making it easier and simpler to run containerized apps.
• Powered by open-source technologies like Dapr (a Distributed Application Runtime that helps to speed your productivity when building microservices), KEDA (a Kubernetes event-driven autoscaler), and Envoy (a traffic proxy), which allows you to make use of these useful tools in your ACA apps.
• Simplifies management: it abstracts away the complexity of infrastructure management, and provides a managed environment for deploying, scaling, and updating applications, reducing the operational overhead.
• Can run containers from any registry: public, private, Docker Hub and Azure container Registry (ACR).
• Integration with other Azure Services: ACA can integrate with services such as Azure Monitor (using Azure Log Analytics), Azure Logic Apps, Azure Functions and Azure Sprint apps, enabling developers to create robust and interconnected solutions.
• Deploy with CI/CD: it’s possible to deploy your container app using CI/CD pipelines (integrates with GitHub Actions and Azure DevOps Pipelines), allowing you to publish revisions (a revision is an immutable snapshot of a container app version) to your container app. When a commit is pushed to your repository, the pipeline is triggered and updates the container image in the container registry; Azure Container Apps creates a new revision based on the updated container image.

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