Guillaume – Guillaume's Blog

Hybrid Cloud part 3 – terraform files available

This is a fully ready to go Site-2-site VPN connection set-up on Oracle OCI. The project description can be found on an earlier post of mine https://guillaumesblog.net/index.php/hybrid-cloud-home-lab-to-oracle-oci/

The terraform files are available on my GitHub repo here.

Hybrid Cloud, Home Lab to Oracle OCI

Imagine you wish to run a game engine locally on LAN and benefit from the features of a managed database in the cloud, where the game engine is separated from the game database holding quests, artifacts, loots offering persistency and automated backups. Or imagine an enterprise set-up where the front end UI is hosted on the company network but the expensive GPUs back-end machines are rented from a cloud provider. In this case, the jargon calls the set-up “hybrid cloud“, partially on-prem and partially on the cloud, but here is the deal: a connection between the two locations is necessary before anything else, and that is what this article is about.

Site to site VPN OCI to on-prem with Cisco 2921

I am trying to setup a S2S connection between Oracle OCI to my home network to try a hybrid on-prem to cloud setup. I follow the model described here: https://www.oracle.com/cloud/networking/site-to-site-vpn/, I’ve got access to the OCI documentation and it actually does mention my router (albeit a different iOs version!)… but still no luck, I can’t make it work. 🙁

Run an OpenDAOC Game Server

Does anyone remember this game? I absolutely use to love this game and still do, and I recently had the weird idea to set-up my own server and though that maybe I could find some source code online to run, and boom, I came across this mod of the famous 2001 Mythic game. It is called OpenDAOC thanks to the instructions it is actually really easy to spin your own server up, so let’s do it.

Operating Systems

I took some time to review how they work and their purpose. I would say so far this is mostly useful to understand the performance issues and bottlenecks. For instance knowing about the topic gives the command htop a whole new dimension, it is finally possible to understand the options and most of the KPIs in the window.

Home monitoring with Docker

I definitely like these Docker and Kubernetes, and thus wanted to share with you how easy it is to set up a home monitoring single pane of glass.

Monitoring set-up – How-to

Today we are on for a combination of Telegraf, InfluxDB and Grafana, and I want to get this to work because I am in preparation for a small IoT project of mine, and for simplicity sake I do not want to fiddle with the Raspberry,APIs and some MQTT set-up…I need to go step by step and I simply need an agent that would scrape my local machine statistics and send them on a dashboard. The part I am not sure of is the software piece in the middle between my source and my dashboard, namely here my time series database… And that’s how I came across these 3 applications. Let’s see… let’s get started.

Some Cloud Security best practices

With cyber security continuously hitting the headlines I though I could share some of what I believe is to know when working in the cloud as an absolute minimum and for simple access, you will understand what I mean later, and also share what I learned fiddling with Cloud systems all day long. I shall divide the matter into two categories: the Cloud itself & the VMs.

Temp, Pi Pico, MQTT & Grafana

Here is some holiday fun with the Pi Pico, I decided to hook up to it some sensor to it in order to monitor the children bedroom temperature, and thought it is a good occasion to mess around with MQTT and dashboards.

I pulled my electronics box and had to dig a little in some components and Pi documentation to make sure I’ve got the correct resistors…ah! I didn’t want to fry anymore of these microcontroller boards. After that put together some basic Python code to connect to my LAN, imported the correct sensor libraries, read from the GPIO and pushed out the messages to my MQTT broker on Ubuntu…

My homework on the AI hype

I invested a bit of time to understand the different type of AI models available, mostly LLM or MLLM, and used Ollama to run these, also got RAG powering them and built an Agent after that. Absolutely loved it!