General Introduction
AWS is a set of IT Infrastrucutre Services.
Origianlly considered as IaaS (Infrastructure as a service) although it is now also offering PaaS (Platform as a service).o
Problems AWS Solves
- Hosting of web applications
- Running legacy applications
- Massive high performance computing batch jobs
- Digital asset management
Key Concepts
- Global Regions : Geographically differentiated regions
- Availability Zones : At each region there are several availability zones per global region
- Web Service Access Strategies (Rest / Soap / Query)
- Machine hours : Amount of time you are consuming a service
- Eventual Consistency : Because of distributed nature, things might not be immediately consistent
- Access Credentials : Account ID / Access Key ID / Secret Access Key / Certificates / Key Pairs
AWS Product Categories
- Compute Services : on demand virtual machines
- Storage Services : store large blocks of unstructured content
- Database Services : strore tabular data
- Networking Services : tech for identifying DNS resources
- Messaging Services : enable rich communication scenarios between systems
- Content Delivery Services : provide edge locations for frequently accessed content
- Deployment & Management Services : enable packaging, securing & monitoring AWS applications
Tools for AWS Developers
- Management console provides a one-stop UI for provisioning and interacting with AWS services
- AMI’s come pre-loaded with application environments
Managing AWS Solutions
User is responsbile for provisioning, securing & montiring their solutions.
IAM in Securing AWS
AWS IAM is AWS Identity and Access Management service for securley controlling access to other AWS services.
- A IAM user can be a physical user or a system.
- Free to use, you pay for the services that use IAM
- IAM groups don’t have credentials, and can’t contain other groups.
Elastic Beanstalk
Elastic Beanstalk makes AWS look like a PaaS offering. It automatically handles deployment and optimization of Java Web Applications.
Cloud Formation
- Cloud Formation is a service that automates the work of creating related AWS resources.
- Free service
Services Overview
Elastic Beanstalk
Elastic Beanstalk is used for deploying and monitoring applications.
EB is free to use.
EB is not a fully fledged monitoring suite, but it can monitor:
- CPU
- Number of requests
- Network Traffic
Dynamo DB
NoSQL DB
Pricing depends on region, throughput capacity & amount of data stored
- Unlimited, Elastic Storage
- Core concept is a table
- Provisioned Throughput Capacity is whare charges are most frequently charged
RedShift
- Data Warehouse Solution
Virtual Private Cloud
VPC Pricing is free to use
- Commonly used when launching EC2 instances
- VPC’s secure group of instances
- Use subnets to control security
CloudWatch
Each cloud watch pricing has a different price depending on what you are monitoring
- Monitoring service for other AWS services
- You can set up an alarm for multiple services
CloudFront
There is a free tier to look at.
- CloudFront is a CDN
