Add current instance IP into security group with AWS cli

	#!/bin/bash
	# Set Security Group id. ID is better than name if not in default VPC
	SG_ID="sg-goyun"
	# Retrieve current IP address
	IP=`curl -s http://checkip.amazonaws.com/`
	# Authorize access on ports 22
	aws ec2 authorize-security-group-ingress --group-id "$SG_ID" --protocol tcp --port 22 --cidr "$IP/32"
	# To remove
	$ aws ec2 revoke-security-group-ingress --group-id "$SG_ID" --protocol tcp --port 22 --cidr "$IP/32"

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