Sign up ×
Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

I have a manually created security group to access Redis, and I am creating a LAMP stack with AWS CloudFormation. I need to update the Amazon EC2 security group from Redis to allow access from this LAMP stack, but I want it to be updated through CloudFormation - is this possible?

share|improve this question

1 Answer 1

up vote 3 down vote accepted

Existing SecurityGroups can be updated using SecurityGroupIngress

For example:

"SecurityGroupRedisIngress": {
    "Type": "AWS::EC2::SecurityGroupIngress",
    "Properties" : {   
        "GroupId": "sg-123456789",
        "IpProtocol": "tcp",
        "FromPort": "6379",
        "ToPort": "6379",
        "CidrIp": ""
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.