AWS Notes

Centos 7 products:

https://aws.amazon.com/marketplace/fulfillment?productId=b7ee8a69-ee97-4a49-9e68-afaee216db2e&launch=oneClickLaunch

accept lic nad choose a region -> ami id on this page.

blat keys

reference: https://alestic.com/2010/10/ec2-ssh-keys/

#!/bin/sh

keypair=keyname  # or some name that is meaningful to you
publickeyfile=/the/file/me.pub
regions=$(aws ec2 describe-regions \
  --output text \
  --query 'Regions[*].RegionName')

for region in $regions; do
  echo $region
  aws ec2 import-key-pair \
    --region "$region" \
    --key-name "$keypair" \
    --public-key-material "file://$publickeyfile"
done

text report

list subnets

aws ec2 --query 'Subnets[*].[SubnetId, AvailabilityZone, CidrBlock, AvailableIpAddressCount]' describe-subnets --output text

list instances by subnet

 aws ec2 --query 'Subnets[*].[SubnetId, CidrBlock]' describe-subnets --output text | while read subnet cidr
 do
  echo Subnet ${subnet} ${cidr}
  aws ec2 --query 'Reservations[*].Instances[*].[State.Name, InstanceId]' describe-instances --output text --filter "Name=subnet-id,Values=${subnet}"
 done

Also see

• Terraform Notes

• /Breaking down the economics and TCO of migrating to AWS