Atypical workloads: Also, in cases where you need a highly scalable solution that is not the typical web application.Or if you know how to manage a server and want to save costs (serverless on AWS is much more pricy as we will see in a later post). For example if you are required to rewrite parts of some software before running it on serverless infrastructure. No serverless: In cases where serverless options present difficulties EC2 is a viable option.You still retain full flexibility to make custom configurations. In this case EC2 is the most straightforward option which still gives you the benefit of the cloud. lift and shift): If you are beginning the transition to the cloud in a lift-and-shift (migrate apps and data without reprogramming software), EC2 is a nice first step. Maintenance:īeing a server-based option, you the developer needs to take care of everything including software updates and patches. This ensures that there is enough computational power if demand unexpectedly increases. You can set up EC2-Auto scaling groups where you define the minimum and maximum number of EC2 instances. This is again cheaper than on-demand prices. However, there are no options to cancel the reservation once made and no option to change the family if requirements change.Ĭompute Savings Plans offer more flexibility by allowing you to change instance families among other things although you still commit to a specific term (1 or 3 years). For example you get to pay only $47/3 years which is $1.30/Month for a 3 year reservation. general purpose) for 1 or 3 years you pay less. There are tricks to reduce costs even more by reserving instances.ĮC2 Instance Savings Plans: If you know you will be needing a specific instance family (e.g. On-demand: As of this writing it costs $3.50/Month to run a t4g.nano instance (2 vCPUs and 0.5 GB RAM). Below is a short overview of the pricing options. Since almost everything is the developer's responsibility, this is the cheapest compute option available on AWS. Things like connecting a database and setting up a load balancer is the developer's responsibility. You have to configure networking yourself and set up firewalls and security manually through ACL (access control lists). Everything must be installed and configured by the developer. There is little preconfiguration (you only choose the OS). While it is fairly simple to launch an EC2 instance it is not the easiest way to get started with AWS. In short, you are renting servers in the cloud with EC2. You also choose the instance size which defines the number of vCPUs and memory available. You choose between instance types, either General purpose, Compute optimized, Memory optimized and others. Each VPS has its own OS installed but shares the underlying hardware amongst other VPS's. It is a virtual private server (VPS) which in a practical sense is similar to a physical server. Launching an EC2 instanceĮC2 stands for Elastic Compute Cloud and was one of the first services offered by AWS. EC2 - flexible and robust cloud server for every need. If you are in a hurry you can skip to the wrap up section for a short summary and a nice illustration. We make comparisons and analyze what to choose based on various criteria. This post aims to make it easier and more transparent.Ĭompute options can be divided into two broad categories: serverless and server-based. It can be quite frustrating to wrap your head around the different services. With cloud eating the world, it is important to understand the different compute options available to deploy applications. What are the differences and when to use what? 6 min read Photo by Tansu Topuzoğlu / Unsplash EC2 vs.
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