AWS Elastic Beanstalk
AWS Elastic Beanstalk makes assists developers to deploy and
manage applications in the AWS Cloud quickly, once a file is uploaded Elastic
Beanstalk handles the deployment details of capacity provisioning,
auto-scaling, load balancing, and application health monitoring automatically.
This activity provides you with an Amazon Web Services (AWS)
account where an AWS Elastic Beanstalk environment has been pre-created for
you. You will deploy code to it and observe the AWS resources that make up the
Elastic Beanstalk environment.
Access the Elastic Beanstalk environment
An AWS Elastic Beanstalk environment includes a collection
of AWS resources running an application version. Multiple environments can be
deployed when multiple versions of an application are needed to run.
AWSDeverloperGuid(7May2020)https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.html
When the deployment is completed, the URL value at the top
of the screen should be clicked and if 404 status is displayed refresh the page.
The web application that you deployed displays.
Elastic Beanstalk defines a number of configuration options
that could be used to configure an environment's behavior and about the
resources it contains.
Explore the AWS resources that support your application
Once a web server environment is created, one or more Amazon
Elastic Compute Cloud (Amazon EC2) virtual machines, known as Instances
would be created by AWS Elastic Beanstalk.
The security groups that are attached to the instances decides
as to which traffic is allowed to reach and leave the instances (ingress). A
security group is created by Elastic Beanstalk that allows traffic from the
load balancer on the standard ports for HTTP (80) and HTTPS (443).
AWS Elastic
Beanstalk.Developer Guid (8May2020)https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.ec2.html
An Auto Scaling group which manages the Amazon
EC2 instances in your environment is included in AWS Elastic Beanstalk
environment. The Auto Scaling group makes sure that there is always one
instance running in a single-instance environment where as in a load balanced
environment, a range of instances can be configured to run, and based on load, Auto
Scaling adds or removes instances.
Auto Scaling monitors each Amazon EC2 instance that it
launches in case any instance terminates unexpectedly it makes sure that the
termination is detected and a replacement instance is launched.
AWS.Auto Scaling group for your Elastic Beanstalk
environment.(8th May 2020)https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.managing.as.html
Advantages
Free up your time
Since Elastic Beanstalk, does most of the work such as configuring
servers load balancers, firewall, networks, and databases developers can free
their time to concentrate their time on other functions.
Auto-scaling settings
Auto Scaling setting allows users to adjust or scale their
applications up and down based on the requirement of their application.
Control over
resources
Platform users are allowed to choose the optimal AWS
resources to their applications, it also allows users to “open the hood” and have
complete control over the AWS resources.
Simplified pricing
With Elastic Beanstalk, costs can be minimized as users only
have to pay for what is been used, another benefit is that users are not needed
to commit into long term contacts and other commitments.
Drawbacks
·
Deployment Speed
·
Deployments usually take a minimum of five to
fifteen minutes at least, for a site with two front-ends and the time would be longer
with more servers.
·
Old Application Versions
·
With every deployment, Elastic Beanstalk
archives the old application version in to an S3 bucket.
CompareCamp.AWS Elastic Beanstalk review.(8th
May 2020)https://medium.com/@acamp/elastic-beanstalk-advantages-and-drawbacks-be814615af01
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