Installing a Cluster of Raspberry Pis with Stacki Ace

May 2, 2017Download as PPTX, PDF0 likes151 views

Presentation by StackIQ's VP Engineering/Co-Founder, Greg Bruno, at StackiFest 2017. The Raspberry Pi was originally developed by the Raspberry Pi Foundation to promote the teaching of basic computer science in schools and developing countries. And although these little single-board computers have done just that, they have the ability to do so much more when paired with the correct tools. That’s why StackIQ ported Stacki (their original bare metal x86_64 server installer) to support Raspberry Pis, creating Stacki Ace: an open-source bare-metal installer for Raspberry Pis.

What is a Raspberry Pi?
Single board computer
Designed to promote teaching of computer science
As of November 2016, 11 million units sold
Raspberry Pi 3 Model B - $35!!

Raspberry Pi Stats
1.2 GHz quad-core ARM
64/32 bit capable
1 GB RAM
1 MicroSD slot
4 USB ports
100 Mbit Ethernet
HDMI
Bluetooth
Wireless LAN
Audio / Composite video out
Camera header
Display header
40 pins of general-purpose I/O

Raspberry Pi Software
Supports Linux
Debian (“Raspbian”)
• Main software release
CentOS 7.x
• Only 32-bit for now
Many other distributions too
And now Stacki!

Stacki Ace
The best ARM on your team is an Ace
Stacki pallet for ARM
• Based on Stacki 4.0
Stacki-ace pallet for ARM
• Raspberry Pi specific configuration

Why Stacki Ace?
Great marketing vehicle
X86_64 rules the server space
• But 15 billion ARMs shipped in 2015
Can install a datacenter with a $35 device
Interesting new use cases
• Low-cost pooled storage
• IoT

Stacki Ace – What does it do?
Converts a Raspberry Pi into a Stacki frontend
Stacki Ace frontend can install:
• Other Raspberry Pis (“ace” appliances)
• Traditional x86_64 servers (“backend” appliances)

Storage Configuration
Set “bootdisk” parameter
• Default: mmcblk0 (the MicroSD card)
• USB storage: sda
Can install onto:
• MicroSD card
• USB-connected hard disk
• USB stick
Note: If you install onto a USB device, you no longer need a
MicroSD card

Frontend Installation
Login to Frontend Raspberry Pi
• You’ll be asked to change your password
• And your root file system will be resized to use all the space on your
MicroSD card
Download stacki, stacki-ace and os pallets for ARM
Execute ‘frontend-install.py’:
Reboot
frontend-install.py -–stacki-iso=stacki-4.0_20170316-7.x.armv7hl.disk1.iso
–-stacki-version=4.0 -–stacki-name=stacki

Raspberry Pi Backend Installation
Live Demo

X86_64 Backend Installation
Download “os” and “stacki” pallets for x86_64
Create a new box for the x86_64 pallets
Add and enable “os” and “stacki” pallets for new box
Assign the x86_64 backend nodes to the box, then install
# stack add box traditional
# stack add pallet os-7.3_11122da-7.x.x86_64.disk1.iso
stacki-4.0_20170414_c4aff2a-7.x.x86_64.disk1.iso
# stack enable pallet os stacki box=traditional arch=x86_64
# stack set host box backend-0-0 box=traditional

Basic Kickstart File Processing
Wrote a “kickstart interpreter” for CentOS ARM
• No kickstart on CentOS ARM
Dynamically create a valid kickstart file and send it back to the Pi
• Pre
• Package
• Post

Kickstart File Processing
During an install, NFS mount “/” from the frontend
• This allows for the backend Pi to be “off” the storage so we can
repartition and reformat “/boot” and “/”
We configure /etc/dhcp/dhcpd.conf to answer Raspberry Pi DHCP
requests
• Which we automatically enable via
“program_usb_boot_mode=1” in /boot/config.txt

Basic Kickstart File Processing
On each boot, backend asks for kickstart file
Looks at attributes section for “bootaction” attribute
If “bootaction” == “install”, then parse and execute the kickstart file
• Otherwise, do nothing

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• Benefits x86_64 too
• Parallel file distribution on running hosts
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Want to learn practical tips for designing systems that can scale efficiently without compromising speed? Join us for a workshop where we’ll address these challenges head-on and explore how to architect low-latency systems using Rust. During this free interactive workshop oriented for developers, engineers, and architects, we’ll cover how Rust’s unique language features and the Tokio async runtime enable high-performance application development. As you explore key principles of designing low-latency systems with Rust, you will learn how to: - Create and compile a real-world app with Rust - Connect the application to ScyllaDB (NoSQL data store) - Negotiate tradeoffs related to data modeling and querying - Manage and monitor the database for consistently low latencies

Drupalcamp Finland – Measuring Front-end Energy ConsumptionExove

AI EngineHost Review: Revolutionary USA Datacenter-Based Hosting with NVIDIA ...SOFTTECHHUB

I started my online journey with several hosting services before stumbling upon Ai EngineHost. At first, the idea of paying one fee and getting lifetime access seemed too good to pass up. The platform is built on reliable US-based servers, ensuring your projects run at high speeds and remain safe. Let me take you step by step through its benefits and features as I explain why this hosting solution is a perfect fit for digital entrepreneurs.

Splunk Security Update | Public Sector Summit Germany 2025Splunk

Big Data Analytics Quick Research Guide by Arthur MorganArthur Morgan

This is a Quick Research Guide (QRG). QRGs include the following: - A brief, high-level overview of the QRG topic. - A milestone timeline for the QRG topic. - Links to various free online resource materials to provide a deeper dive into the QRG topic. - Conclusion and a recommendation for at least two books available in the SJPL system on the QRG topic. QRGs planned for the series: - Artificial Intelligence QRG - Quantum Computing QRG - Big Data Analytics QRG - Spacecraft Guidance, Navigation & Control QRG (coming 2026) - UK Home Computing & The Birth of ARM QRG (coming 2027) Any questions or comments? - Please contact Arthur Morgan at [email protected]. 100% human made.

Transcript: #StandardsGoals for 2025: Standards & certification roundup - Tec...BookNet Canada

Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next. Link to recording, presentation slides, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/ Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.

DevOpsDays Atlanta 2025 - Building 10x Development Organizations.pptxJustin Reock

Building 10x Organizations with Modern Productivity Metrics 10x developers may be a myth, but 10x organizations are very real, as proven by the influential study performed in the 1980s, ‘The Coding War Games.’ Right now, here in early 2025, we seem to be experiencing YAPP (Yet Another Productivity Philosophy), and that philosophy is converging on developer experience. It seems that with every new method we invent for the delivery of products, whether physical or virtual, we reinvent productivity philosophies to go alongside them. But which of these approaches actually work? DORA? SPACE? DevEx? What should we invest in and create urgency behind today, so that we don’t find ourselves having the same discussion again in a decade?

Cyber Awareness overview for 2025 month of securityriccardosl1

HCL Nomad Web – Best Practices und Verwaltung von Multiuser-Umgebungenpanagenda

Webinar Recording: https://www.panagenda.com/webinars/hcl-nomad-web-best-practices-und-verwaltung-von-multiuser-umgebungen/ HCL Nomad Web wird als die nächste Generation des HCL Notes-Clients gefeiert und bietet zahlreiche Vorteile, wie die Beseitigung des Bedarfs an Paketierung, Verteilung und Installation. Nomad Web-Client-Updates werden “automatisch” im Hintergrund installiert, was den administrativen Aufwand im Vergleich zu traditionellen HCL Notes-Clients erheblich reduziert. Allerdings stellt die Fehlerbehebung in Nomad Web im Vergleich zum Notes-Client einzigartige Herausforderungen dar. Begleiten Sie Christoph und Marc, während sie demonstrieren, wie der Fehlerbehebungsprozess in HCL Nomad Web vereinfacht werden kann, um eine reibungslose und effiziente Benutzererfahrung zu gewährleisten. In diesem Webinar werden wir effektive Strategien zur Diagnose und Lösung häufiger Probleme in HCL Nomad Web untersuchen, einschließlich - Zugriff auf die Konsole - Auffinden und Interpretieren von Protokolldateien - Zugriff auf den Datenordner im Cache des Browsers (unter Verwendung von OPFS) - Verständnis der Unterschiede zwischen Einzel- und Mehrbenutzerszenarien - Nutzung der Client Clocking-Funktion

Greenhouse_Monitoring_Presentation.pptx.hpbmnnxrvb

Andrew Marnell: Transforming Business Strategy Through Data-Driven InsightsAndrew Marnell

Increasing Retail Store Efficiency How can Planograms Save Time and Money.pptxAnoop Ashok

Semantic Cultivators : The Critical Future Role to Enable AIartmondano

Generative Artificial Intelligence (GenAI) in BusinessDr. Tathagat Varma

Dev Dives: Automate and orchestrate your processes with UiPath MaestroUiPathCommunity

This session is designed to equip developers with the skills needed to build mission-critical, end-to-end processes that seamlessly orchestrate agents, people, and robots. 📕 Here's what you can expect: - Modeling: Build end-to-end processes using BPMN. - Implementing: Integrate agentic tasks, RPA, APIs, and advanced decisioning into processes. - Operating: Control process instances with rewind, replay, pause, and stop functions. - Monitoring: Use dashboards and embedded analytics for real-time insights into process instances. This webinar is a must-attend for developers looking to enhance their agentic automation skills and orchestrate robust, mission-critical processes. 👨‍🏫 Speaker: Andrei Vintila, Principal Product Manager @UiPath This session streamed live on April 29, 2025, 16:00 CET. Check out all our upcoming Dev Dives sessions at https://community.uipath.com/dev-dives-automation-developer-2025/.

How analogue intelligence complements AIPaul Rowe

Artificial Intelligence is providing benefits in many areas of work within the heritage sector, from image analysis, to ideas generation, and new research tools. However, it is more critical than ever for people, with analogue intelligence, to ensure the integrity and ethical use of AI. Including real people can improve the use of AI by identifying potential biases, cross-checking results, refining workflows, and providing contextual relevance to AI-driven results. News about the impact of AI often paints a rosy picture. In practice, there are many potential pitfalls. This presentation discusses these issues and looks at the role of analogue intelligence and analogue interfaces in providing the best results to our audiences. How do we deal with factually incorrect results? How do we get content generated that better reflects the diversity of our communities? What roles are there for physical, in-person experiences in the digital world?

Cybersecurity Identity and Access Solutions using Azure ADVICTOR MAESTRE RAMIREZ

AI Changes Everything – Talk at Cardiff Metropolitan University, 29th April 2...Alan Dix

Talk at the final event of Data Fusion Dynamics: A Collaborative UK-Saudi Initiative in Cybersecurity and Artificial Intelligence funded by the British Council UK-Saudi Challenge Fund 2024, Cardiff Metropolitan University, 29th April 2025 https://alandix.com/academic/talks/CMet2025-AI-Changes-Everything/ Is AI just another technology, or does it fundamentally change the way we live and think? Every technology has a direct impact with micro-ethical consequences, some good, some bad. However more profound are the ways in which some technologies reshape the very fabric of society with macro-ethical impacts. The invention of the stirrup revolutionised mounted combat, but as a side effect gave rise to the feudal system, which still shapes politics today. The internal combustion engine offers personal freedom and creates pollution, but has also transformed the nature of urban planning and international trade. When we look at AI the micro-ethical issues, such as bias, are most obvious, but the macro-ethical challenges may be greater. At a micro-ethical level AI has the potential to deepen social, ethnic and gender bias, issues I have warned about since the early 1990s! It is also being used increasingly on the battlefield. However, it also offers amazing opportunities in health and educations, as the recent Nobel prizes for the developers of AlphaFold illustrate. More radically, the need to encode ethics acts as a mirror to surface essential ethical problems and conflicts. At the macro-ethical level, by the early 2000s digital technology had already begun to undermine sovereignty (e.g. gambling), market economics (through network effects and emergent monopolies), and the very meaning of money. Modern AI is the child of big data, big computation and ultimately big business, intensifying the inherent tendency of digital technology to concentrate power. AI is already unravelling the fundamentals of the social, political and economic world around us, but this is a world that needs radical reimagining to overcome the global environmental and human challenges that confront us. Our challenge is whether to let the threads fall as they may, or to use them to weave a better future.

How Can I use the AI Hype in my Business Context?Daniel Lehner

𝙄𝙨 𝘼𝙄 𝙟𝙪𝙨𝙩 𝙝𝙮𝙥𝙚? 𝙊𝙧 𝙞𝙨 𝙞𝙩 𝙩𝙝𝙚 𝙜𝙖𝙢𝙚 𝙘𝙝𝙖𝙣𝙜𝙚𝙧 𝙮𝙤𝙪𝙧 𝙗𝙪𝙨𝙞𝙣𝙚𝙨𝙨 𝙣𝙚𝙚𝙙𝙨? Everyone’s talking about AI but is anyone really using it to create real value? Most companies want to leverage AI. Few know 𝗵𝗼𝘄. ✅ What exactly should you ask to find real AI opportunities? ✅ Which AI techniques actually fit your business? ✅ Is your data even ready for AI? If you’re not sure, you’re not alone. This is a condensed version of the slides I presented at a Linkedin webinar for Tecnovy on 28.04.2025.

Noah Loul Shares 5 Steps to Implement AI Agents for Maximum Business Efficien...Noah Loul

Artificial intelligence is changing how businesses operate. Companies are using AI agents to automate tasks, reduce time spent on repetitive work, and focus more on high-value activities. Noah Loul, an AI strategist and entrepreneur, has helped dozens of companies streamline their operations using smart automation. He believes AI agents aren't just tools—they're workers that take on repeatable tasks so your human team can focus on what matters. If you want to reduce time waste and increase output, AI agents are the next move.