--- title: Autoscaling EC2 instances in AWS description: Autoscaling EC2 instances in AWS image: https://blog.e-zest.com/hs-fs/file-3586010250-png/blog-files/auto-scaling-uses-to-launch-amazon-ec2-instances.png --- [![e-Zest logo\_An accion lab company\_Colour](https://blog.e-zest.com/hubfs/images/Logos%20with%20Tagline/Corporate/SVG/e-Zest%20logo_An%20accion%20lab%20company_Colour.svg "e-Zest logo_An accion lab company_Colour")](https://www.e-zest.com/) - [WORK](https://www.e-zest.com/our-work) - [SERVICES](https://www.e-zest.com/our-services) - [Product Engineering](https://www.e-zest.com/digital-product-engineering-services) - [Enterprise Data Services](https://www.e-zest.com/enterprise-data-services) - [Digital Commerce](https://www.e-zest.com/digital-commerce-services) - [Digital Operations](https://www.e-zest.com/digital-operations) - [Digital Consulting](https://www.e-zest.com/digital-transformation-consulting-services) - [Digital Experience Design](https://www.e-zest.com/digital-experience-design) - [INSIGHTS](https://blog.e-zest.com/) - [CAREERS](https://www.e-zest.com/careers) - [ENTERPRISE DATA SERVICES](https://www.e-zest.com/enterprise-data-services) - [GENERATIVE AI](https://www.e-zest.com/generative-ai) - [Healthcare](https://healthcare.e-zest.com) - [Contact Us](https://www.e-zest.com/contact-us) - ![Elevating Product Engineering with AI and ML](https://blog.e-zest.com/hubfs/Elevating%20Product%20Engineering%20with%20AI%20and%20ML.jpg) [BLOGS](https://blog.e-zest.com) #### Elevating Product Engineering with AI and ML As technology evolves and customer choices broaden, there is an increasing ... 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Out of the many amazing features of Amazon, this blog intends to highlight the auto scaling feature of EC2 instances. The scaling power that cloud offers us is really powerful; one that requires minimal effort to give optimal resource utilization. Amazon takes a step ahead by further automating the process of scaling up and down your servers on the fly. Achieving optimal use of resources by shutting down the servers with minimal traffic and scaling up in spike time has helped many companies to save thousands of dollars. This blog will explain in a few easy steps how this can be achieved. The entire autoscaling activity can be explained in four easy steps on the Amazon CLI interface. **Four Easy Steps to Autoscale instances** [![Auto Scaling uses to launch Amazon EC2 instances](https://blog.e-zest.com/hs-fs/file-3586010250-png/blog-files/auto-scaling-uses-to-launch-amazon-ec2-instances.png?width=550&height=150&name=auto-scaling-uses-to-launch-amazon-ec2-instances.png)](http://www.e-zest.net/wp-content/uploads/2013/11/Auto-Scaling-uses-to-launch-Amazon-EC2-instances.png) Specify the template that Auto Scaling uses to launch Amazon EC2 instances. **as-create-launch-config** my-launch-config --image-id ami-xxxxx --instance-type m1.small --group my-sg-groupname--region region-name--I yourAccesskey --S yourSecretKey ``` my-launch-config: specify a unique template name ami-xxxxx: Specify the AMI id of the server that you want to spin up m1.small: specify the type of instance/size for spine up my-sg-groupname: specify the security group name to be applied to a new spin up instance ``` [![scaling](https://blog.e-zest.com/hs-fs/file-3586010260-png/blog-files/scaling-is-to-be-performed.png?width=250&height=50&name=scaling-is-to-be-performed.png)](http://www.e-zest.net/wp-content/uploads/2013/11/scaling-is-to-be-performed.png) After creating the template it is necessary to specify where and how the scaling is to be performed. **as-create-auto-scaling-group** my-autoscaling-grp--launch-configuration my-launch-config--availability-zones us-west-1a,us-east-1a--min-size 1 --max-size 10 --desired-capacity2--load-balancers LoadbalancerName --region region-name--I yourAccesskey --S yourSecretKey us-west-1a: Specify the zone in which the new instance is to spin. It is always recommended to specify two different availability-zones as a safe practice/disaster recovery. ``` --min-size/--max-size: the minimum number/maximum of instances in your autoscaling group --desired-capacity: specify the number of instances on startup to be launched ``` [![Action](https://blog.e-zest.com/hs-fs/file-3586010270-png/blog-files/action.png?width=300&height=50&name=action.png)](http://www.e-zest.net/wp-content/uploads/2013/11/action.png) The third step describes the policy to scale up and scale down. **as-put-scaling-policy**--auto-scaling-group my-scaleup-policy --name scale-up "--adjustment=1" --type ChangeInCapacity --cooldown 300 --region region-name--I yourAccesskey --S yourSecretKey ``` --adjustment=1: to add 1 new instance to the autoscaling group --adjustment=-1: to decrease 1 instance from the autoscaling group --cooldown 300: specify the time lag between the successive triggers of the same policy. ``` **ReturnMessage:**arn:aws:autoscaling:us-west-1:751374139099:scalingPolicy:xxxxxxxx-xxxxx-xxxx-xxxx:autoScalingGroupName/sg-securitygroup-gma:policyName/scale-up [![when to Launch](https://blog.e-zest.com/hs-fs/file-3586010280-png/blog-files/when-to-launch.png?width=250&height=50&name=when-to-launch.png)](http://www.e-zest.net/wp-content/uploads/2013/11/when-to-Launch.png) The last step in autoscaling is to specify the condition when the scaling policy is to be triggered which is set using the cloud watch alarms. After specifying the condition when the alarm should be triggered (here CPU 50%), select the action and the autoscaling group in the relevant combos. The instance is then ready to autoscale. - - - ### Similar Blog [![AWS IoT - Now Migration is Quick and Easy](https://blog.e-zest.com/hubfs/Blog%20Graphic%20(AWS%20IoT%20migration)%20V5-05.jpg) AWS IoT - Now Migration is Quick and Easy AWS can help make your migration quick and easy Modern businesses employ Internet of Things (IoT) platforms to manage their ... By Mohini Wable Nov 22, 2022](https://blog.e-zest.com/aws-iot-now-migration-is-quick-and-easy) [![3 Cloud-Native Trends That are Reshaping Our Businesses in 2022](https://blog.e-zest.com/hubfs/e-Newsletter-04.jpg) 3 Cloud-Native Trends That are Reshaping Our Businesses in 2022 The move to the cloud was a trend that was already making headways before the pandemic-led digital shift. But post-2020, the ... 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