AWS Block Storage Contd..

Activity: Create ubuntu linux server

• Create an ubuntu linux server
• install apache2 and enable apache

sudo apt update
sudo apt install apache2 -y
sudo systemctl enable apache2

• Shutdown the ec2 instance
• Create the AMI
  
  
  
  
  
• The image (AMI) will be created and also a snapshot
  
  
• now terminate the ec2 instance and create a new ec2 instance with the AMI Created.
  
  
  
  
• This AMI can be copied to any region, the snapshot and AMI gets transferred and we can use this application in any aws region
  
  
• To share this AMI with any of your other organizational accounts
  
  

File Shares

• The EBS volumes can be attached to only one instance at a time, but generally in our application configurations, we would have some data/application etc which are required to be shared by multiple ec2 instances.

Activity: File Share on the Linux VMs

• Create the following ubuntu vms
  • in AZ-A
  • in AZ-B
• AWS has a network file storage service for linux based vm’s which is called as Elastic file storage
• Lets understand how efs works with the below image
  
• Create a security group with access to vpc cidr
  
• Lets create EFS
  
  
  
  
  
  
  
  
• Now lets understand on how to attach efs to the vms
  
  
• Refer Here for understanding mounting steps
• Lets login into an ubuntu instance and mount. i had to install nfs common using the following command sudo apt install nfs-common -y
  
  
• Now lets login into other vm in other az (in my case amazon linux instance) sudo yum install amazon-efs-utils -y
  
  
• EFS can act as a network file storage for linux and mac vms within a region in aws
• EFS is scoped to one region, but we can replicate the data to other regions as well
  
  
• EFS Backups can be managed by backup vaults.
• If we have windows ec2 instances, efs cant be used as a network share
• If we want to use third party storage options in a managed fashion, AWS provides FsX