The initial infrastructure design

Our starting point will be the legacy infrastructure architecture illustrated in Figure 9.1:

Figure 9.1 – Legacy infrastructure architecture

The key elements from this architecture that we need to consider for our initial rehosting are as follows:

• The network
• The network security
• The VMs

Before we begin to design our infrastructure architecture, there are a few Google Cloud terms that we need to define as they are key to understanding how Google Cloud is organized, and where we will place our resources. A resource in Google Cloud is classified as a global resource, regional resource, or zonal resource:

• Global resource: A resource that is not restricted to a specific region or zone within a region but is hosted in multiple locations worldwide.
• Region: A geographic location where we can host our Google Cloud resources. Examples of this are US-WEST1 and EUROPE-WEST1. A list of available...