my-notes

Workshop AWS Serverless

Arquitetura de microsserviços

2001 - 2002

2001: Aplicação monolítica + teams 2002: Microsserviços - 2 pizza teams

2pizza teams - fast & agile

full ownership & autonomy
you build it, you run it
DevOps - small, nimble teams
Focused innovation

Serverless means…

No servers to provision or manage
Pay for value
Scales with usage
Availability and fault tolerance built in

Serverless benefits

greater agility
less overhead
better focus
increased scale
more flexibility
faster time to market

Serverless is more than compute

COMPUTE

AWS Lambda
AWS Fargate

DATA STORES

Amazon S3
Amazon Aurora Serverless
Amazon Dynamo DB

INTEGRATION

…

AWS Lambda

Event Driven -> Function as a Service -> Serverless FaaS (Lambda)

Serverless Applications

Event Source -> Function -> services (anything)

Tipos de eventos:

changes in data state
requests to endpoints
changes in resource state

Function:

Node.js
Python
Java
PowerShell
C#
Go
Ruby
BYOR (Bring Your Own Runtime)

Anatomy of a Lambda Function

Handler() function

Function to be executed upon invocation.

Event object

Data sent during lambda function invocation.

Context object

Methods available to interact with runtime information (request ID, log group, more).

Fine-grained pricing

Buy compute time in 1ms increments
Low request charge
No hourly, daily, or monthly minimums
No per-device fees
Never pay for idle

Dá pra testar no Free Tier

Amazon API Gateway

Create a unified API frontend for multiple micro-services.
DDoS protection and throttling for your backend.
Authenticate and authorize requests to a backend.
Throttle, meter, and monetize API usage by third-party developers.

HTTP APIs for Amazon API Gateway

Achieve up to 67%”cos reduction and 50% latency reduction compared to REST APIs. HTTP APIs are also easier to configure than REST APIs, allowing customers to focus more time on building applications.

Reduce application costs by up to 67%
Reduce application latency by up to 50%
Configure HTTP APIs easier and faster than before

Amazon DynamoDB

Fast and flexible NoSQL database service for any scale

Performance at scale:

Handles millions of requests per second
Delivers single-digit-millisecond latency
Automated global replication
New advanced streaming with Amazon Kinesis Data Streams for DynamoDB

No servers to manage

maintenance free
auto scaling
on-demand capacity mode
change data capture for integration with AWS Lambda, Amazon Redshift, Amazon Elasticsearch Service

Enterprise ready

ACID transactions
Encryption at rest
Conctinuous backups (PITR), and on-demand backup and restore
NoSQL Workbench
Export table data to S3
PartiQL support (a SQL-compatible query language)

AWS AppSync

Real-time and offline data using GraphQL

real-time collaboration
offline programming model with sync
your data sources
fine-grained access control

Business workflow is rarely sequential start to finish

AWS Step Functions + Lambda

“Serverless” workflow management with zero administration:

makes it easy to coordinate the components of distributed applications and microservices using visual workflows.
Automatically triggers and tracks each step and retries when there are errors, so your applicattion executes in order and as expected
logs the state of each step, so when things do go wrong, you can diagnose and debug problems quickly

Step Functions: Integrations

Simplify building workloads such as order processing, report generation, and data analysis.

Write and maintain less code; add services in minutes.

More service integrations:

Amazon Simple Notification Service
Amazon Simple Queue Service
Amazon SageMaker
AWS Glue
AWS Glue
AWS Batch
Amazon Elastic Container Service
AWS Fargate
Amazon EMR

AWS Step Functions - Express Workflows

Launched at re:Invent on 12/03/2019
A new type of AWS Step function workflow that compliment existing step functions standard workflows for long running, auditable workflows
const effective at scale: 100K TPS
Short duration workflows: <5 min
applications such as IoT data ingestion, streaming data processing and transformation, and high volume microservices orchestration

Amazon EventBridge

A serverless event bus service for AWS services, your own applications, and SaaS prociders.

Serverless. Pay only for the events you process.
Simplified scaling - avoids increasing costs to sustain and manage resources
No upfront investments

AWS Serverless Application Model (SAM)

AWS CloudFromation extension optimized for serverless
New serverless resource types: functions, APIs, and tables.
Supports anything AWS CloudFormation supports
Open specification (Apach 2.0)

AWS Command Line Interface (AWS CLI)

CLI tool for local development, debugging, testing, deploying, and monitoring of serverless applications

Supports API Gateway “proxy-style” and Lambda service API testing

Response object and function logs available…

AWS Serverless Application Repository

Cloud Development Kit (CDK)

IaS usando linguagem de programação

Software development framework for defining cloud infrastructure using familiar programming languages.

Getting Started:

cdkworkshop.com
aws.amazon.com/cdk
aws.amazon.com/vscode

Amplify

Fastest way to develop cloud powered apps

Tres components principais:

Framework
- CLI
Cloud Services
Developer Tools

The Amplify Framework, an open source client framework, includes libraries, a CLI toolchain, and UI components

The CLI toolchain enables easy integration with Cloud Services such as Amazon Cognito, AWS, AppSync, and Amazon Pinpoint.

Developer Tools for building, testing, deploying, and hosting the entire app - frontend and backend.