Nicolai Ort
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56 lines
2.5 KiB
Markdown
56 lines
2.5 KiB
Markdown
---
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title: "Geographically Distributed Clusters: Resilient Distributed Compute on the Edge"
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weight: 6
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tags:
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- rejekts
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---
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<!-- {{% button href="https://youtu.be/rkteV6Mzjfs" style="warning" icon="video" %}}Watch talk on YouTube{{% /button %}} -->
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<!-- {{% button href="https://docs.google.com/presentation/d/1nEK0CVC_yQgIDqwsdh-PRihB6dc9RyT-" style="tip" icon="person-chalkboard" %}}Slides{{% /button %}} -->
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## Background: The state of cloud in mauritius
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- Cloud native is more cloud naive
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- Government treated cloud as bad for a while
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- People know AWS but not the cloud native ecosystem
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- Bad uplinks due to sea-cables that tend to get broken from time to time
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- Only one local cloud service provider and the big providers are "an ocean away"
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## The Solution
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- Idea: Use multiple homelabs across the island as availability zones or multi-cloud
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- Goal: Orchestrate everything through kubernetes
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- Plan: 3 Homelabs with at least 3 Nodes each that join one big cluster
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- Tech: Longhorn Storage, Tailscale for connectivity
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- Converns: Latency, Power-Cuts, Bandwidth, IP-Rotation
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- Prod use: A startup wanted to use this for their workload and needed
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- Tailscale exit nodes for external services
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- GPU nodes for AI-Workload
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## Q&A
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- How is ingress handled (by me)?
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- Migrate the control plane to the cloud provider and use their static IPs.
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- Ingress allways starts at the cloud and routes over
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- Why tailscale?
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- Fairly reliable
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- Pretty simple
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- Handles routing
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- How are you planning on scaling this setup?
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- More friends aka more homelab locations
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- Utilize Tailscale
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- How are you handling image distribution?
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- Bandwitdh is not that limited (200 Down)
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- They just host their own registry for stuff
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- What about the neighboring islands? -> Cool ideas
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- How big is your local cloud community? -> 15 People at smaller meetups and 1600 at the yearly dev meetup
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- How do you handle security in your setup?
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- This is not the primary concern for the government
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- Most locals banks/insurers have inhouse servers or stuff on aws
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- Most of the time security is an afterthought
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- What kind of hardware are you running on and how do you aquire it?
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- The second hand market is not really a thing (or rather expensive).
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- They usually just import stuff themselves
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- Most Nodes are Dell Optiplex or Lenovo Thinkcenters
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- How does longhorn perform over the 200mbit connection? -> Surprisingly good
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- Is Starlink available? -> No and the government does things linke "let's shut down socialmedia before the election" |