Romana

Romana

Romana is an open-source project introduced by Panic Networks in 2016, designed to tackle the overhead introduced by Overlay networking solutions.

Kubernetes Deployment

For Kubernetes clusters deployed with kubeadm:

kubectl apply -f https://raw.githubusercontent.com/romana/romana/master/docs/kubernetes/romana-kubeadm.yml

For Kubernetes clusters deployed with kops:

kubectl apply -f https://raw.githubusercontent.com/romana/romana/master/docs/kubernetes/romana-kops.yml

When using kops, note:

• Set network plugin to CNI with --networking cni

• For aws, additional romana-aws and romana-vpcrouter are available to automatically configure routing between Nodes and Zones

How It Works

• Layer 3 networking reduces the overhead from overlays

• Network isolation based on iptables ACLs

• Hierarchy CIDR management for Host/Tenant/Segment ID

Advantages

• Pure layer 3 networking, better performance

Disadvantages

• Tenant management based on IP has scalability limitations

• Modifications to physical devices or address planning are cumbersome

Reference Documents

• http://romana.io/

• Romana basics

• Romana Github

• Romana 2.0

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Unleashing Romana: A Network Efficiency Game-Changer

Welcome to Romana, Panic Networks' brainchild and open-source marvel born in 2016, with a singular mission: slashing the hefty overhead that comes with Overlay networking solutions.

Elevating Kubernetes Deployment

Are you navigating the Kubernetes seas with kubeadm? Cast this digital net:

kubectl apply -f https://raw.githubusercontent.com/romana/romana/master/docs/kubernetes/romana-kubeadm.yml

Or are you charting your course with kops? Here's your map:

kubectl apply -f https://raw.githubusercontent.com/romana/romana/master/docs/kubernetes/romana-kops.yml

Charting with kops? Take heed:

• Choose CNI as your trusted companion with --networking cni

• For aws explorers, romana-aws and romana-vpcrouter are your guides to seamless Node and Zone route configurations

The Magic Under the Hood

• Layer 3 networking is the secret sauce, cutting down those pesky overlay costs

• iptables ACLs stand guard, ensuring your network's isolation

• The CIDR hierarchy reigns over Hosts, Tenants, and Segments with ease

The Perks

• Immerse yourself in the efficiency of pure layer 3 networking

The Quirks

• An IP-based tenant ledger can fill up; beware the scale ceiling

• Gear shifts in the physical realm or rerouting your address plan? A bit of a tangle

Decoding the References

• Discover Romana's realm: http://romana.io/

• The ABCs of Romana: Romana basics

• Romana's Github sanctuary: Romana Github

• Meet Romana 2.0: Romana 2.0