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

be aware of your "region" set it in command line with --region

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} ${cidr}
for i in `aws ec2 --query 'Reservations[*].Instances[*].[InstanceId]' describe-instances --output text --filter "Name=subnet-id,Values=${subnet}"`
 do
 name=`aws ec2 --query 'Tags[*].[Value]' describe-tags --filter "Name=resource-id,Values=${i}" "Name=key,Values=Name" --out text`
 echo -n ${name} " "
 aws ec2 --query 'Reservations[*].Instances[*].[State.Name, InstanceId, ImageId, PrivateIpAddress, PublicIpAddress, InstanceType]' describe-instances --output text --filter "Name=subnet-id,Values=${subnet}" "Name=instance-id,Values=${i}"
 done
done

Good ref for getting tags : http://docs.aws.amazon.com/cli/latest/reference/ec2/describe-tags.html

getting tags example:

aws ec2 --query 'Tags[*].[Value]' describe-tags --filter "Name=resource-id,Values=<id>"

just an instance's name:

aws ec2 --query 'Tags[*].[Value]' describe-tags --filter "Name=resource-id,Values=<id>" "Name=Key,Value=Name" --out text

list all instance acorss all regions:

for region in `aws ec2 describe-regions --output text | cut -f3`;
do
 echo -e "\nListing Instances in region:'$region'...";
 aws ec2 describe-instances \
  --query 'Reservations[*].Instances[*].[PrivateIpAddress, InstanceId, ImageId, PublicIpAddress, State.Name, InstanceType]' \
  --output text \
  --region $region
done

Also see

• Terraform Notes

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

• instance costing tool: http://www.ec2instances.info/