MultiCloud Classroom notes 28/Aug/2025

Simple Storage Service (S3)

• Amazon S3 helps in creating blob storage with a unit called as Bucket.
• Bucket belongs to a region.
• Bucket name has to be unique across AWS.

Create bucket and share content

• Create a bucket with unique name, ensure ACLs are enabled, unselect block all public access
• In S3 bucket we have
  • folders: for organizing objects which can contain files or folders in it.
  • objects: Object refers to a file of any type.
• Now upload any two files and grant public access
  
• Every object in an s3 bucket will get
  • https url: using which we can acess the object if we are permitted.
  • s3 url: used to access from command line/code
• Since our current oject has public read access the https url can be accessed by anyone

Azure

• Azure Storage account is service which offers different storage types
  • disk
  • file
  • blob
  • archive
  • table
  • queue
• later this proved to be difficult for disk storage and azure has a service called as Azure Managed disks for disks now
• Azure specific names/terms
  • Page Blob: refers to a virtual disk
  • Block Blob: refers to any file without filesystem (equavalent to object in s3 bucket)
  • Append Blob: refers to files that can be appended (logs)
• In Azure if you have to create any resource we need to have a resource group.
• Refer Here for docs on how to create a storage account
• Create a Storage account with a unique name & rest of defaults
• To store blobs (block blob/any file) we need a container, so lets create one
  
• By default container has private access only, if we need anonymous public accesss we need to change settings. After that create a container called as shared