The rapid evolution of modern application development is marked by the adoption of serverless containers and microservices, with Azure Container Apps playing a key role by allowing developers to deploy containerized applications without managing infrastructure. However, this infrastructure abstraction can make it difficult to gain insights into application behaviors in production. To address this, Datadog has integrated with Azure to offer visibility into critical metrics emitted by Azure Container Apps, and now provides an easy solution for deeper insight through a lightweight sidecar container that operates alongside the app container to collect metrics, logs, and traces without affecting the core application logic. This innovative approach simplifies the traditionally complex process of application instrumentation, allowing developers to set up the sidecar directly within the Azure portal or using YAML and Terraform templates, facilitating a comprehensive all-in-one monitoring experience. Additionally, Azure Container Apps supports a managed OpenTelemetry agent, offering an alternative for sending telemetry data to multiple endpoints, thereby enhancing observability and enabling faster troubleshooting and reduced downtime. With Datadog's sidecar, developers can achieve deep observability for both single container apps and distributed microservices, and those new to Datadog can explore these capabilities with a 14-day free trial.