Tag: private-cloud
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Core Router
On my cluster refresh, I’m using a Ubiquiti Networks Edgerouter POE-5-Port Router as the core router for this project. They are currently selling used on Amazon for $88. It checks every box I need for this project. The EdgeRouter POE-5 is an elegant little design for a router. Eth0 and eth1 are both connected to…
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Build your own load balancer for your cluster
Load Balancers Note 1: You will see a reference to “Mikrotik” in these configurations. This redesign started with a Mikrotik as the core router, but it turns out that the Edgerouter does a better job at ECMP routing right out of the box. See below for more information about ECMP. I decided not to go…
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Compute Nodes
All three compute nodes are Lenovo M73s with Intel Core i5-4590 processors, 16 GB of DDR3-1600 RAM, 500 GB SATA disks, built-in Realtek 1 Gb NICs, and PCI Express Realtek 1 Gb cards. It’s useful to have at least three nodes in any cluster. In a cluster with three nodes, a quorum (majority) requires at…
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OpenWrt and real routing protocols…
The core router for the project is a Netgear R6220 running OpenWrt 19.07.1. It is available used for around $20. OpenWrt OpenWrt is an opensource replacement operating system for many consumer routers. It brings many features to the hardware that aren’t usually available with the manufacturer’s firmware. The installation instructions are fairly simple and listed…
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Architecture first three layers.
Layer 1 Layer 2 VLANs VLAN ID NAME NOTES 198 Transit Transit network to rest of office 199 SAN Native VLAN on all SAN ports 200 MGMT Native VLAN on all host access ports 201 ACCESS1 Kubernetes Traffic Layer3
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Reason for this blog
I’ve been working for several years with containers and Kubernetes, and I’ve been working with hypervisors/virtual machines for at least a decade. Most commercial production work has been implemented in the Google Cloud, Digital Ocean, AWS, and friends. However, in the interest of saving on the commercial cloud costs(I was working for a startup), …