January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Security group
Once VPC and subnets with related gateways/routes are ready, you can create EC2 instances. However, at least one access control needs to be created beforehand; this is called a security group. It can define ingress (incoming network access) and egress (outgoing network access) firewall rules.
In the following example, a security group and a rule for public subnet hosts are created that allows SSH from your machine's IP address, as well as open HTTP (80/tcp) world-wide:
//create one security group for public subnet
$ aws ec2 create-security-group --vpc-id vpc-0ca37d4650963adbb --group-name public --description "public facing host"{ "GroupId": "sg-03973d9109a19e592"}
//check your machine's public IP (if not sure, use 0.0.0.0/0 ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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