January 2019
Intermediate to advanced
484 pages
11h 48m
English
Content preview from DevOps with Kubernetes - Second Edition
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Subnets
In GCP, subnets are always found across multiple zones (availability zones) within a region. In other words, you can't create subnets on a single zone like AWS. You always need to specify entire regions when creating a subnet.
In addition, unlike AWS, there are no significant concepts of public and private subnets (in AWS, a public subnet has a default route as IGW; on the other hand, a private subnet has a default route as the NAT gateway). This is because all subnets in GCP have a route to an internet gateway.
Instead of subnet-level access control, GCP uses host (instance)-level access control using network tags to ensure network security. This will be described in more detail in the following section.
It might make network administrators ...
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