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How to use reserved instances for the elasticbenastalk

0

we have already many application deployed on aws beanstalk in different aws accounts , thise instance use on demand type , type load balancer with auto scaling min 2 max 20

so we decide to change to a reserved instance , what is the procedure to apply that

do we need just to pushase for reserved instances = number of instances we need for all elasticbenastalk instances ?

and how to modify the elastic benastalk configue to start using reserved instaces instead of the on demand ?

Topics
ComputeManagement & Governance
Tags
AWS Elastic BeanstalkAWS Auto ScalingAmazon EC2Reserved Instances
Language
English
hbadre
asked a month ago72 views
3 Answers
3
Accepted Answer

Hello,

  • purchase Reserved Instances RI that match the instance type and region your environment uses.
  • Elastic Beanstalk will automatically use the RIs if they match your instances.
  • You don't need to change much in your configuration just ensure that the instance type and Availability Zone in your Elastic Beanstalk settings match the RIs you've bought.
  • This your environment will switch from on-demand to reserved pricing automatically.
  • For you can consider also Compute saving plans it will more discounts please look at AWS Document it will be helpful for you.

https://docs.aws.amazon.com/whitepapers/latest/cost-optimization-reservation-models/reserved-instances-payment-options.html

https://docs.aws.amazon.com/whitepapers/latest/cost-optimization-reservation-models/savings-plans.html

EXPERT
Parthasaradi
answered a month ago
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EXPERT
Oleksii Bebych
reviewed a month ago
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EXPERT
Sandeep
reviewed a month ago
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EXPERT
kranthi putti
reviewed a month ago
2

Just reserve the instances as usual, like any other EC2 instance. If the EC2 instances launched by Elastic Beanstalk match with the reserved instances criteria (instance family and region), the cost will be discounted from the AWS bill. Consider also use Compute Saving Plans, that are more flexible than reserved instances.

Carlos Garces
answered a month ago
0

Thanks for your answers , but the number of RI is fixed i mean when you purshase for RI you must specify how many instances you want not like on demand using auto scaling and it will create more instances depend on the workload ?

hbadre
answered a month ago
  • Parthasaradi EXPERT
    a month ago

    yes, Your correct. thank you for accepting

  • larryjkl
    a month ago

    It's the challenge of purchasing reserved instances; if you want the cheaper cost you have to commit to a certain number for a given period of time. If it was me, I would probably look at my usage and see how many instances are being used 90% of the time ( or something like that ), and the reserve that many. You won't be able to use reserve instances for all of the beanstalk instances ( at least not cost effectively ) just for ones that you are always using. At least as I understand it.

    If your workload can handle interruptions using spot instances in beanstalks works well as well.

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