groupSet

aws ec2 describe-instance-attribute --instance-id i-00b1xxxxx8aa --attribute groupSet
{
    "Groups": [
        {
            "GroupName": "default",
            "GroupId": "sg-02c0c057d26760df6"
        }
    ],
    "InstanceId": "i-00bxxxxxx118aa"
}

Ref: https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html

Related

aws ec2 authorize-security-group-ingress --region region --group-id security_group_id --protocol tcp --port 22 --cidr cidr_ip_range

See also

• AWS Security group (SG): aws ec2 [ create-security-group | describe-security-groups | delete-security-group | authorize-security-group-ingress | authorize-security-group-egress ]
• Security Group, DBSecurityGroup, aws_security_group, aws_security_group_rule, VpcSecurityGroupId, AWS::EC2::SecurityGroup, Security groups for Pods in EKS