Compute Flashcards
EC2
- Elastic Compute Cloud
- IaaS
- Instance Based
- Virtual Machines
- Billed per second, 60s min
Lambda
- Event driven (schedule or event), Server-less Computing
- Function Based
- Low-Cost, only pay for runtime
Lambda Limits
Per Region Limits:
- Concurrent Executions: 1,000
- Function & Layer Storage: 75 GB
Individual Function Limits:
- Max memory allocation = 3,008 MB
- Timeout: 15m
- Deployment pkg size: 250MB unzipped
Container Based Computing
- ECS: Elastic Container Service (user managed)
- EKS: Elastic Kubernetes Service
- Fargate: Container Service (ECS, but AWS managed)
- ECR: Elastic Container Registry
AWS Elastic Beanstalk
- Platform as a Service (PaaS)
- Web applications
AMI
Application Machine Image
- launch instances with few clicks/line of code… ready in minutes
- Quick Start
- My AMI
- AWS Marketplace (3rd Party)
- Community AMIs (shared, be careful)
9 Options w/ EC2 Option Wizard
- AMI
- Instance Type
- Network Settings
- IAM Role
- User Data
- Storage option
- tags
- security group
- key pair
EC2 Instance Types
- Memory
- Processing Power (CPU)
- Disk type/space
- Network Performance
General Purpose
Compute Optimized
Memory Optimized
Storage Optimized
Accelerated Computing
EC2 Instance Types (2)
EC2 Instance Store
- disks running on host computer where EC2 instance is running
- If instance stopped, data is deleted
- Use EBS if need to retain data
Tag
label assigned to aws resource
- metadata
- Consists of Key and optional Value
Key Pair
Public Key: AWS Stores
Private Key: user stores
Launch EC2 from CLI
EC2 Reboot
- Ephemeral data is retained
CloudWatch
- near-real-time metrics
- Monitor EC2 instances
- 15 months of historical data
Basic: free, 5m data
Detailed: monthly fee, 1m data
EC2 Pricing Models
- On Demand Instances
- Dedicated Hosts
- Dedicated Instances
- Reserved Instances
- Scheduled Reserved Instances
- Spot Instances
Per Second Billing: avail on On-demand, reserved, and spot instances running linux or ubuntu
EC2: On-Demand Instances
- Pay by the hour
- No long-term commitments
- Eligible for AWS Free Tier
EC2: Dedicated Hosts
Physical server with EC2 instance capacity fully dedicated
EC2: Dedicated Instances
runs in a VPC on hardware that is dedicated to a single customer.
EC2: Reserved Instances
- Full, Partial, or no upfront payment when reserved
- Discount on hourly charge for instance
- 1-year or 3-year term
EC2: Scheduled Reserved Instances
Capacity reservation that is always available on recurring, user specified schedule
1-year term
EC2: Spot Instances
Run as long as available and bid is above Spot Instance Price
Interrupted w/ 2-min notification
- Terminated, Stopped, or Hibernated
Low-Price
4 Pillars of Cost Optimization
- Right Size
- Increase Elasticity
- Optimal Pricing Model
- Optimize Storage Choices
Kubernetesdd
Orchestrates multiple Docker hosts (nodes)
