Research if we can run OCP compute nodes to the Wavelength Zones .

"AWS Wavelength is an infrastructure offering optimized for mobile edge computing applications. Wavelength Zones are AWS infrastructure deployments that embed AWS compute and storage services within communications service providers’ (CSP) 5G networks, so application traffic from 5G devices reach application servers running in Wavelength Zones without leaving the telecommunications network. This avoids the latency that would result from application traffic traversing multiple hops across the internet to reach its destination, which allows customers to take full advantage of the latency and bandwidth benefits offered by modern 5G networks."

Wavelength introduced a new component to VPC called Carrier Gateway to provide internet connectivity to nodes within the WL subnet.

Excepting the Carrier Gateway, the infrastructure deployment is quite similar of Local Zones, but it's more limited in terms of AWS resources available.

On the Shift Week I managed to extend the content created to Local Zone research to deploy Wavelength Zone and dependencies (subnet, carrier gateway, route tables) using CloudFormation. I also managed to boot the RHCOS, enabling the carrier public IP assignment using AWS CLI. The MachineSet did not worked as I was not able to set the NetworkInterface to the ProviderSpec (need more info).

GOAL:

The idea of this spike is to explore more and officially provide internal documentation about the research started on the shift week. So we can feed the internal teams with the results, and if applied address any limitation we might have.

ENGINEERING CONTENT

Content created on the shift week related to this topic (Extending Local Zone documentation with WL)

• steps to create the CloudFormation stack to create Wavelength resources
• steps to create the MachineSet to installer, setting the NetworkInterfaces structure
• troubleshooting steps to create the EC2 running aws-cli setting to associate the Carrier IP
• additional content exploring Local Zones and Wavelength subnets on ROSA - blocked as ACM does not allow to specify zones when creating the MachinePool, and ROSA does not allow to create MachineSets even being cluster-admin