Course: AWS Cloud Practitioner Essentials - 2. Compute in the Cloud
July 26th, 2022
Compute in the cloud
ec2
instance types
pricing
dedicated hardware
scaling
auto-scaling
load balancing
messaging
Simple Notification Service (SNS)
Simple Queue Service (SQS)
Serverless
Lambda
container services
Elastic Container Service (ECS)
Elastic Kubernetes Service (EKS)
Fargate "serverless containers"
(1) EC2
EC2 instance types
general purpose - balances compute, memory, network
compute optimized - high-performance processors
memory optimized - high-performance databases (db needs memory)
storage optimized - data warehousing
accelerated - (special use-cases)
R6a
R<version><cpu-arch>
6-> v6
a amd
i intel
EC2 Pricing
pay for what you use
EC2 instance pricing options
on-demand (pay for what you use)
spot (cheaper, might be interrupted)
reserved (cheaper, pay for instances even when not using it)
compute savings plan (cheaper, pay for consistent compute usage)
Dedicated Hardware (vs shared hardware with virtualization)
dedicated instance (eg. legal compliance)
dedicated host - physical box (eg. licensing requirements)
(2) scalability
auto-scaling
get more instances when (eg. 3 minutes of 70% usage)
elastic load balancing
get the traffic into the instance
side-effect: resilience when an instance crashes
(3) AWS messaging services
Simple Notification Service (SNS)
push / publish
topic
subscriber
Simple Queue Service (SQS)
queue
stored on queue
pull
(4) Serverless compute services
Lambda
(5) container services
Elastic Container Service (ECS)
Elastic Kubernetes Service (EKS)
Fargate - "serverless containers"
fargate pricing (per vCPU / GB per hour)
https://aws.amazon.com/ecs/pricing/
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