AWS Elastic Beanstalk is a deployment and provisioning service in the cloud. It automates the application setup process on the Amazon Web Services (AWS ) Infrastructure.
Amazon is the largest IT Service Vendor in providing variety to people across the globe. Amazon provides all these services to boost up the cloud infrastructure. Many companies today were using these services to innovate something in the future. Usually, cloud applications require a lot of memory, computing power to run in the environment. Moreover, creating and maintaining these items requires to take a lot of work and maintenance. Hence to solve all these problems, this vendor provides Amazon elastic Bean Stalk as an orchestration tool.
What is Elastic Bean Stalk in AWS?
Elastic Bean Stalk is a Cloud Computing service. It makes it easier for the developers to quickly deploy and manage the applications. Here the developers simply deploy the applications to the cloud. And the Elastic Beanstalk will take care of provisioning and handling the application configuration. Besides, this Elastic Bean Stalk is responsible for other activities like autoscaling, load balancing, application health monitoring. It does all these operations automatically.
Moreover, the advantage of Elastic Beanstalk is, apps that were not written for the web can also be deployed. Besides, amazon does not charge additionally for Elastic Bean. Here the cost of the service varies depending upon the services you run, and the storage like Amazon S3. In other words, the cost of the service varies w.r.t the instance, storage space utilized. Hence the customers need to pay for the resource usage to store their apps. This service uses different programming languages like python, PHP, node.js, and so on.
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Prior to utilizing this service, you have to create the local application of any platform. ( As mentioned above, the platform may be any of PHP, python, node js, and so on.). After that, you have to create an application in the elastic beanstalk. And it's time to upload your local applications. And once the application is deployed, we can get the URL to launch it.
Since we have got a brief idea of Beanstalks, let us discuss some of its concepts.
AWS Bean Stalk Concepts:
a)Application:
The application in Elastic Beanstalk is similar to the folder in AWS.
The application is usually a collection of components. This includes environments, versions as well as the Environment configuration
This service supports uploading your application as a zip file. This zip file contains all the necessary contents.
The elastic beanstalk application is logically equivalent to the file containing the source code.
b)Application Version:
The application version generally refers to the application that you have uploaded recently. Later you are responsible to upload its next generation
For instance, initially, you will create and upload the application to the amazon beanstalks. And then it has updated the source code of the application. Hence instead of updating the old version of the file, you will just rename the same file with a different version number.
The major advantage of this feature is you can see all the modifications that happen to the source code at any point of the time. And if you find any bug in the current version, you can remove that piece of code rather than changing the whole code.
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Environment:
In Elastic Beanstalk, the environment is where the current version of the application will be active.
Usually, each environment version is capable of running a single application version at a time. But it is also possible to run the same (or) different version of the application in many environments at the same time.
Whenever an environment is created, the Amazon elastic beanstalk automatically provides required EC2 instances and S3 buckets.
Environment Tier:
Besides the environment, this service also mentions the environment tier. Basically, the environment tiers were divided into two types. They are the Web Server as well as the Web Worker Environment.
The web server environment usually runs an application using PHP (or) requires an HTTP request.
The worker environment usually runs an application utilizing Amazon simple Queue Services(SQS)
Environment Configuration:
The environment configuration is the set of parameters. This includes security groups, instance types as well as platform versions. if you change the configuration, amazon elastic beanstalks implement it dynamically. It can either apply the new resources (or) new changes (or) deletes the resource.
Saved Configuration:
This platform allows creating the temple. These templates contain some basic functionalities. This template allows use as the starting point for your environment configurations. Moreover, you can modify the configurations as per your requirement. And also we can use this while creating a new environment.
platform:
A platform is a combination of all Beanstalk components, operating systems, programming languages, and the webserver to run all the applications. Besides, you can choose your platform while creating your application (or)the environment. Moreover, here we do not need to update (or) include the AWS patches. Amazon will be taking care of all those.
Benefits of AWS Elastic Beanstalk:
When compared to Paas as a Service, Amazon has the following, let us discuss those in detail
1)Operations Simplification:
Beanstalk provision manages and operates the infrastructure and manages the application stack. Here the developers have to just focus on developing the code for their application. Amazon will be taking care of managing and configuring the databases, servers, firewalls, and networks.
2)Offers Quicker Development
Amazon ElasticBeam offers developers a faster and simpler way to deploy the applications. Besides, without the underlying infrastructure, the application will be ready to use within a few minutes.
3)Multi-tenant Architecture support:
This service allows all users, to share their application across all devices. It does this with high scalability and security. Besides, it provides a detailed report of application usage as well as the user profiles.
4)Complete Resource Control:
Amazon Beanstalk allows developers to select different kinds of resources. This includes AWS EC2 that is optimal for their application. It allows developers full control of AWS resources and accesses them at any time.
5)Autoscaling:
Beanstalk takes care of scaling up (or) scaling down of the service whenever required. If the application traffic increase (or) decreases, beanstalk scales it automatically.
6.Customization:
Rather than moving with the predefined code, this platform allows developers to customize various services. This includes customization of various instances like EC, storage capacity like S3, and so on.
Who Should use AWS Elastic Beanstalk?
There is no such mandatory restriction to enroll to learn these services. This service can be learned by anyone who is interested in managing cloud services. Today many developers show much interest in learning these services. This is because from here the developers can manage and deploy all the services easily.
AWS Elastic Beanstalk architecture
There is a great architecture behind the Amazon Elastic Beanstalk service. Let’s get into the main content of this platform. Moreover, AWS Elastic Beanstalk architecture includes the following things.
Web Server Environment
The app version installed on the WSE- Web Server Environment manages the HTTP requests raised by the client. This structure for the Web Server Environment describes the environment tier and the working of components that work in that environment tier together. It includes several parts within this ecosystem and we will discuss them one by one.
Beanstalk environment
This is the major part of the environment and is also considered the heart of the app. When a user launches the Environment, the Elastic Beanstalk allocates different resources that are required to run the app successfully.
Autoscaling
The Autoscaling group within this environment automatically starts the Amazon EC2 instances in addition to lodge the enhancing app load. Moreover, in case the app load drops, then the Autoscaling of Amazon EC2 stops instances from working. But it leaves at least one instance running always.
Host Manager
A software component that runs on each and every EC2 instance allocated to the application. Moreover, the host manager holds responsibility regarding producing and observing app log files, observing app servers, and producing instance-based events.
Security groups
These are like a firewall for the instances where Elastic beanstalk includes a default security group. This firewall enables clients to access the application through HTTP Port 80 also provides an option to define these security groups to the DB server.
Worker environment
This is a discrete background process that manages the resource or time-intensive Ops through assisting Web Server Tier. Moreover, it produces various reports, sends an email notification, and also cleans up the database. All this makes the application stay much responsive and handle various requests.
The workflow of the worker process is very easier and simple. After starting a Working Environment Tier, the AWS Elastic Beanstalk installs a daemon on each EC2 instance within the AutoScaling group. The same pull requests from the AWS SQS queue system. Based on the priority this queue sends the message to the HTTP path of the Worker environment. After getting these messages the worker performs the job and also sends an HTTP response upon completion of the operation. If the chain of getting responses stops or fails, then it continuously sends messages.
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Deploying application on Elastic Beanstalk
Till now we have gone through the architecture of the Elastic Beanstalk. Now, here we are going to deploy an app on AWS Elastic Beanstalk which is a simple and very easy process. The points that include in this deployment are as follows.-
Step a)
Click on the “Create New Application” going to the BeanStalk console. A dialog box will appear where you can mention the “name” and “description” of the application.
Step b)
After creating the application folder, click on the “Actions” tab from the menu. Next, go to the “Create Environment” option in that tab. Here, you can build various Environments for the application built.
Step C)
Now, select the two different “Environment” options from the tabs. Here, there are two different options to choose from - Web Server Environment to manage HTTP requests by application. And the Worker Environment to manage various background tasks.
Step d)
Here, again a dialog box appears where the user needs to provide the domain name and the description for the application.
Step e)
The Elastic Beanstalk offers users various options where they can select the application of their choice. Moreover, there is a facility to choose the sample application offered by the Elastic beanstalk. Otherwise, the user can upload a file with a code present in the application. Here, Elastic Beanstalk takes few minutes to start an application and once it gets starts, the user can navigate to the various options available. He can make any changes to the existing application, view log files, etc.
Step f)
Finally, the users have a URL on the right top corner of the application page by clicking which they will get the results of the successful launch of their application on Elastic Beanstalk.
Hence, in this way, a user can start his application on this platform.
Conclusion
I hope with this, you people have got a brief idea of AWS Beanstalk. You can get more pictures when you for AWS Online Training. Through online training, you can observe all these features and benefits practically. In the upcoming articles, ill update more information in this blog. I hope, you have enjoyed the blog