Monday, April 27, 2020

Aws CloudFront

CDN

User will go to edge location rather than origin.


Amazon S3




Simple Storage Service


      • Files can be stored and retrieved from  anywhere on the web .

      • Used for live streaming . Netflix, Hotstar use it for hosting.


      • Used for content distribution , big data analytics , backup etc .


      • Files are stored in buckets , a max of 100 buckets can be created by a developer .
      • Replica of the file is available in 3 different Availability Zones , all in the same region . AWS also supports cross region replication which can be configured manually .
      • Supports periodic automatic archival/deletion , using lifecycle rules.

Storage class
Standard available in 3 availability zone
Glacier : cold data.
Archival data ..
Glacier deep
Long data retention

Requester pays
The one who download pays

Object lifecycle management
Move file automatically to glacier after 50 days
Cannot move back from glacier to S3 via lifecycle

Retreival options

EFS : multiple EC2 share same storage .
Nfs : network file system.

Snowball.
Hardware device to migrate a data .
Like a briefcase .
Device will be shipped.

Aws elastic block storage




IaaS


Infrastructure as a Service  :


 provides access to virtual or physical hardware .






EBS

     Elastic Block Storage


  • Similar to a hard drive
  • Block storage for EC2 and other services
  • Automatic replication within its AZ
  • Snapshot backup to Amazon S3
  • Restore a snapshot to a new EBS volume
  • Multiple volumes can be attached a single EC2
  • Volumes can be shared between multiple EC2



SSD
HDD

Aws lambda

Serverless

Function as a service
I want to shut down my services at 6 pm.
Integrated with Database.

Build in fault tolerance.
Pricing: only when it is executed.

Create thumbnail function



Amazon ECS

ECS supports docker

Eliminate need to install operate your cluster.

Fleet of docker container

Fargate : managed ECS .
Next step to ECS.

Container as a Service


Aws Technical Professional Bootcamp



Edge location :
Route 53 : navigate to a certain site via edge location.
Regional Cache:
Amazon Elastic Container services
Virtualization to container
Lambda : serverless

Types of EC2
Memory Optimised
Compute optimised
Storage Optimised
GPU optimised
General Optimised

Size : large small xtra large

AMI : bootable operation system and additional software.You can take snapshot.

Families : types .









Saturday, April 25, 2020

AWS Auto Scaling



  Before getting start , lets revisit the following topics .


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ec2-user@ec2 Permission denied