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![bg left:40% 80%](https://marcusnoble.co.uk/images/marcus.jpg)

# **Personal Infrastructure**

**Marcus Noble**

🔗 https://marcusnoble.co.uk
🐦 @Marcus_Noble_
✨ AverageMarcus

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## A little about me and the past

- I work professionally as a "DevOps" engineer at Elsevier with a focus on Kubernetes and containers
- Previously a JavaScript developer, now a Go developer
- I've been running my own servers for as long back as I can recall (historically cheap VPS's with applications running either directly on the OS or using Dokku)
- I like to tinker with "Smart Home" stuff

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## Where things are at today...

* **87** uniquely identifiable devices connected to my home network
* A Zigbee network with **32** devices
* A single-node Kubernetes cluster running on a dedicated desktop machine hosting **14** applications
* An autoscaling 1-3 node Kubernetes cluster hosted on Scaleway running **~30** applications
* 1 Raspberry Pi running Home Assistant to control all smart devices in my home
* 1 Raspberry Pi running OctoPi to control my 3D printer

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## Previously

* Raspberry Pi 4 running k3s Kubernetes cluster
  - Only ARM arch support - required me to manually rebuild some images
  - I had stability and performance issues
* Dokku running on a VPS server hosted on bHost (now Mythic Beasts)

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## Local Network setup

**FTTP** - Zen Internet
↯
**ISP Modem**
↯
**Powerline**
↯
**Router** - TP-Link Archer C7
↯
**Mesh WiFi beacons** - TP-Link Deco M4 (x3)
↯
**87 devices**

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## Local Network setup

4 devices connected via ethernet

Everything else via WiFi

All devices have static IPs and assigned hostnames
(based on the periodic table of elements)

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## Kubernetes - local

An old desktop machine repurposed as a single-node Kubernetes cluster

**OS**: Ubuntu
**Kubernetes Version**: Microk8s v1.20.1
**Specs**: CPU - 4 core | Memory - 12Gb | HDD - Lots

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## Kubernetes - local

**Primary Use**: Hosting sensitive or local-specific applications that I want to keep off the internet.
E.g.

- custom built CCTV monitoring application covering the 8 cameras I currently have set up
- automated download tools so I can kick off downloads remotely while I'm out
- DNS-based ad blocker (AdGuard)

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## Kubernetes - cloud

Hosted on Scaleway's managed Kubernetes platform, Kapsule.
1-3 *DEV1_M* instances, autoscaled based on load.

All defined in code using Terraform and stored in git.

**Kubernetes Version**: v1.20
**Specs**: CPU - 3 vCPUs | Memory - 4Gb | HDD - 40Gb + 14 PVCs of varying size

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## Kubernetes - cloud

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**Primary Use**: Hosting internet facing services and providing a secure, authenticated tunnel to my local cluster
E.g.

- My personal blog plus some related sites
- Self-hosted alternatives to cloud services: Gitea, Nextcloud, Harbor, Photoprism, etc.
- Tekton - handle all my CI/CD needs, triggered by webhooks from Gitea
- "Utility" applications to make my life easier:
  - Convert SVG to DXF - used when creating 3D print designs from SVG
  - website-to-remarkable - lets me send a webpage as a PDF to my reMarkable tablet for later reading

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## Time for a quick break

☕️

Questions so far?

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## Smart Home