Presentations
Navigating application instrumentation and monitoring can be challenging. In this presentation, I will share my journey as a Go developer using OpenTelemetry to collect and visualize telemetry data, while also explaining some of the underlying mechanisms.
Although OpenTelemetry is a widely adopted open-source solution, its implementation requires several key steps: instrumentation, data extraction, storage selection, and visualization. I will break down these steps and demonstrate how using the Grafana ecosystem makes it easier to get started with OpenTelemetry.
Kubernetes is a declarative-first platform where manifests written in YAML describe what resources should exist in the cluster and on the nodes. Yet many new users will use imperative processes, running `kubectl apply` either manually or through CI, to define and change the state of their cluster. This approach is known as the “push” model, and while it works initially, it does not scale as more users adopt the platform. Without a shared understanding of the desired state, it’s impossible for teams to collaborate and make changes safely.
Anyone who has used the Ingress resource in Kubernetes for any length of time knows that it is lacking in flexibility and, as a result, has resulted in just about every ingress-related project creating their own bespoke resource types or complex set of needed annotations. Gateway API is the community’s answer to alleviating this pain. This talk will dive into my experiences utilizing it with Traefik for north-south traffic instead of Ingress and IngressRoute resources and with Linkerd to enhance visibility and flexibility of the east-west traffic traversing the service mesh.
Attendees will explore the potential of open-source AI solutions in this presentation and/or demo. We'll dive into practical demonstrations using the LLaMA-Factory library to finetune open-sourced models (e.g. qwen, llama). We will also showcase how to efficiently host and serve these models on vLLM. This session aims to empower practitioners to move past proprietary AI providers by leveraging several open-source frameworks. Key benefits include full control over model behavior, cost efficiency through self-hosting, and the ability to tailor models using advanced fine-tuning techniques.
MySQL Shell is a modern CLI for connecting to, and interacting with, MySQL Instances. But there is so much more!! In this session we will demonstrate some of the cooler, but lesser-known, features of MySQL Shell. These features include, but are not limited to: creating sandbox instances for testing, managing MySQL replication, and dumping data to (and loading data from) a cloud storage bucket.
Scarab is an open-source environmental monitoring robot designed to collect real-time data on air and water quality. Built from repurposed parts, Scarab was inspired by insect movement, WWII aircraft designs and the need for air quality monitoring after the 2023 wildfires. Its sensors detect various gases in the environment, making it a tool for climate research. This presentation will explore Scarab’s build process, the importance of open-source technology in environmental science, and how anyone can contribute to global sustainability through DIY robotics.
How do we know that concurrent data modifications don't introduce corruption? From double-booked plane seats to crypto exchange bankruptcy, these errors can be costly. MySQL offers transaction isolation levels that balance performance and isolation guarantees. With live demos, we'll learn all about transactions, consistent nonlocking reads, InnoDB locking and MVCC, read phenomena, and isolation levels.
After this talk, you'll be able to spot and fix concurrency bugs in MySQL queries, and make informed decisions about performance tradeoffs in transactions.
Graphical interfaces are bloated and bog down your system. Free yourself from the GUI by liberating yourself at the CLI. Learn how to do all the things you thought you needed a GUI for in the terminal, such as watching Youtube videos, reading and editing MS Office documents and replacing MS Word, Excel and Powerpoint, listening to music, browse the modern Internet including images, staying up-to-date and interact on social media, check your email, play games and so much more. Keep your New Year's resolution by dumping that GUI weight and run lean and mean in the CLI.
When plants move around in video games, it adds atmosphere, wether a gentle breeze or gale force winds. We will walk through some methods to create and animate grass and trees, using all open source software such as the Godot game engine, Blender, Gimp, and Krita. In this workshop, there will be a bit of texturing, a bit of simple mesh modeling, and a bit of mostly simple shader coding!
Explore of world of AI models through the story of training your dragon. Using the narrative metaphor in parallel, we will cover the fundamentals of collecting and preparing data, testing and validating data, tuning models, and decision-making with machine learning. The metaphor will help make the learnings memorable.