November 25, 2022

Top 20 AWS App Runner Questions and Answers


            Without requiring you to comprehend, provision, scale, or manage any AWS compute, networking, or routing resources, App Runner easily integrates with your development workflow to deliver the appropriate amount of automation to deploy your code or container image. You have the ease of running thousands of applications that scale themselves automatically depending on your traffic requirements. Your apps run on infrastructure that is managed and run by AWS, which offers best practises for security and compliance like automatic security patches and encryption.

 

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Ques. 1): If I don't utilise containers, can I still use AWS App Runner?

Answer:

Yes. On curated App Runner platforms with supported runtimes and frameworks, AWS App Runner supports automatically creating a container image. App Runner automatically containersizes your web application and gives a running web application when you associate your existing source code repository and optionally provide it your runtime build and start commands.

 

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Ques. 2): What use cases are supported by App Runner's integration with Amazon Virtual Private Cloud (Amazon VPC)?

Answer:

Your service can access database engines like Amazon Aurora, MySQL, PostgreSQL, and MariaDB on Amazon Relational Database Service (RDS) instances that run in a VPC thanks to App Runner's support for Amazon VPC. With this support, your service can also communicate with backend services running on AWS Fargate, supported by Amazon Elastic Container Service and Amazon Elastic Kubernetes Service, or Amazon Elastic Compute Cloud in a VPC. These services include message brokers like Amazon Managed Streaming for Apache Kafka or Amazon MQ. Finally, you can also enable your service to talk to an on premise database that can be connected via an AWS Direct Connect network connection set up in a VPC.

 

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Ques. 3): How do applications grow with changing demand using AWS App Runner?

Answer:

Based on the volume of requests being submitted to your application concurrently, AWS App Runner automatically launches more instances. App Runner will scale the containers down to a provided instance, a CPU-throttled instance ready to service incoming requests within milliseconds, if your application receives no incoming requests. The autoscaling settings of your application allow you to optionally configure the number of concurrent requests made to an instance.


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Ques. 4): Can I use an orchestrator to execute persistent applications on AWS Fargate and web applications on AWS App Runner?

Answer:

Yes. Use AWS Fargate with an orchestrator that can handle various resources, like as graphics acceleration or persistent volumes, if you need to run other applications, including content management systems that require a persistent file system or machine learning tasks. Since the Copilot CLI supports both App Runner and ECS/Fargate, you can keep using the tool if you already are. To monitor applications running across App Runner, Amazon ECS tasks running on Fargate, and Amazon EKS pods running on Fargate, you can also use Amazon CloudWatch as your single point of access.


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Ques. 5): What makes AWS App Runner so great?

Answer:

AWS App Runner is the simplest method to execute your online applications on AWS, including webpages, API services, and backend web services. No infrastructure or container orchestration is necessary with App Runner. You may quickly transition to a fully operational containerized web application on AWS using an existing container image, container registry, source code repository, or existing CI/CD workflow.


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Ques. 6): What kind of options do I have for deployment using AWS App Runner?

Answer:

AWS App Runner offers a variety of deployment options, including the capacity to instantly deploy a container image using the App Runner dashboard or AWS CLI. You may quickly add App Runner as your deployment target using the App Runner API or AWS CLI if you already have a CI/CD workflow in place that utilises AWS CodePipeline, Jenkins, Travis CI, CircleCI, or another CI/CD toolchain. You may easily connect to your current container registry or source code repository and have App Runner automatically create a continuous deployment pipeline for you if you want it to perform automatic continuous deployment on your behalf.

With App Runner, you can create a distinct application for each of your container images or source code branches, complete with its own build and start instructions, environment variables, and deployment category (such as development or production). All the advantages of hosting your web application on App Runner, such as default security, seamless scaling, and monitoring, are yours once it has been deployed.


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Ques. 7): How would I gain access to storage, databases, or cache services if my application required it?

Answer:

You can link an application to alternative storage, database, or application integration services without being limited by AWS App Runner. Customers may quickly add the required code and connection instructions to their applications or containers, and then setup their applications so that they can safely communicate with these external services across the network.


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Ques. 8): What are the budget controls for AWS App Runner?

Answer:

To prevent expenditures from going over your budget, you can put a maximum restriction on the number of active container instances your application utilises.

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Ques. 9): How can I get AWS App Runner up and running?

Answer:

By going to the App Runner console or using the AWS CLI and building an App Runner application, you can deploy an AWS App Runner application on AWS. You can give a container image, connect your source code repository or container registry, and specify any optional build and start commands when constructing the App Runner application. A secure URL will be generated for the service automatically by App Runner.

 

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Ques. 10): How can I access the logs for my AWS App Runner-based application?

Answer:

AWS App Runner offers runtime logs and deployment logs that are gathered from the output streams of all system components, web frameworks, runtimes, build and deployment instructions, and application/web servers. This integration with Amazon CloudWatch Logs is complete. These are combined by App Runner into a single thorough channel that is accessible via the App Runner console, CloudWatch console, and AWS CLI.


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Ques. 11): Do I have to pay to access the VPC on App Runner?

Answer:

No. You only pay for data transmission expenses; for instance, if your App Runner application and your Amazon Relational Database Service instances are located in different Availability Zones, you will pay for the communication between them.


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Ques. 12): Should I require additional flexibility, can I switch from AWS App Runner to Amazon Elastic Container Service (Amazon ECS), Amazon Elastic Kubernetes Service (Amazon EKS), or another AWS service?

Answer:

Yes. On Amazon ECS or Amazon EKS, you can utilise the same container image that was deployed to App Runner. As your needs change, you have the flexibility to switch to new services. Using the tools and onboarding process offered by the new AWS service you select, you can deploy your code or containers directly to it.

 

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Ques. 13): How is AWS App Runner priced?

Answer:

The computation and memory resources used by your programme are charged to you. You can also pay for extra App Runner services like automating your deployments or generating your deployment from source code.


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Ques. 14): What kinds of programmes can I use AWS App Runner for?

Answer:

AWS App Runner facilitates full stack development, including frontend and backend HTTP and HTTPS web applications. Websites, backend web services, and API services are examples of these applications. Container images, runtimes, and web frameworks like Node.js and Python are all supported by App Runner.

 

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Ques. 15): Can I pass a VPC ID, subnets, or security groups when creating an App Runner application?

Answer:

Yes. Using this data, network interfaces that enable communication with a VPC will be built. App Runner will build numerous network interfaces—one for each subnet—if you pass it multiple subnets. We recommend that you specify at least two subnets for improved availability.

 

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Ques. 16): Can I run web applications on AWS App Runner using my own domain name?

Answer:

Using the App Runner GUI or AWS CLI, you can easily add your custom domain to your AWS App Runner application. App Runner gives you steps to help you update your DNS records with your DNS provider when you add your own domain name. Custom root domains (example.com), custom subdomains (www.example.com), and wildcard domains (*.example.com) are all supported by App Runner.

 

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Ques. 17): Does Copilot offer support for AWS App Runner?

Answer:

AWS Customers may simply launch and maintain containerized applications on AWS using Copilot's command line interface (CLI). Utilizing Copilot will allow you to launch AWS App Runner rapidly. Additionally, you can utilise Copilot as your default CLI to manage AppRunner, ECS, and/or Fargate.

 

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