AWS EC2 security group add current IP and remove old IP

add_ip.sh

myip=$(dig +short myip.opendns.com @resolver1.opendns.com)  # this will fetch my current IP
#myip=$(curl -s checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//')

mkdir -p "./tmp"
touch "./tmp/old_ip.txt"
removing_ip=$(cat ./tmp/old_ip.txt)
adding_ip=$myip

echo $adding_ip > ./tmp/old_ip.txt



if [ -z ${removing_ip+not_set} ]; then
  echo "Removing nothing"
else
  echo "removing $removing_ip from my ssh Development Security Grop Connection"
  aws ec2 --profile default revoke-security-group-ingress \
    --group-name my-security-group-name \
    --protocol tcp \
    --port 22 \
    --cidr $removing_ip/32

  echo "removing $removing_ip from my https Development Security Grop Connection"
  aws ec2 --profile default revoke-security-group-ingress \
    --group-name my-security-group-name \
    --protocol tcp \
    --port 443 \
    --cidr $removing_ip/32
fi


if [ -z ${adding_ip+not_set} ]; then
  echo "Adding nothing"
else
  echo "adding $adding_ip from my ssh Development Security Grop Connection"
  aws ec2 --profile default authorize-security-group-ingress \
    --group-name my-security-group-name \
    --protocol tcp \
    --port 22 \
    --cidr $adding_ip/32
    
  echo "removing $adding_ip from my https Development Security Grop Connection"
  aws ec2 --profile default authorize-security-group-ingress \
    --group-name my-security-group-name \
    --protocol tcp \
    --port 443 \
    --cidr $adding_ip/32
fi


echo 'Finished'

check AWS CLI form more details https://aws.amazon.com/cli/

related to articles:

http://www.eq8.eu/blogs/43-deep-dive-to-cloud-coding and https://github.com/equivalent/scrapbook2/blob/master/archive/blogs/2017-09-cloud-coding-security.md