London open stack meet up - nov 2015
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Slides from Ramon Acedo, Red Hat from the London Openstack Meetup, Noovember 18th, 2015. RHEL OSP 7, TripleO and director
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This document summarizes a presentation about deploying OpenStack with Red Hat Enterprise Linux OpenStack Platform (RHEL OSP) 7 and Director. It discusses:
1. What RHEL OSP Director is and how it is used to install, configure, and monitor RHEL OSP deployments through mechanisms like installing the installer, identifying target hosts, managing content, defining topology, and provisioning hardware.
2. How RHEL OSP Director uses upstream OpenStack components like TripleO, Ironic, and Heat along with Puppet to deploy the undercloud management nodes and overcloud workload nodes.
3. The steps to deploy the undercloud and overcloud through the director including configuring the undercloud, discovering
Extending TripleO for OpenStack Management
Operational awareness and value for cloud operators has largely been ignored by the OpenStack community. Today with the maturity of TripleO and inclusion of Tuskar, we can now begin to think about TripleO's use as a vehicle for OpenStack infrastructure management.
The question now is How do we extend TripleO with additional value?".
Within this context, there are several areas of integration which can be explored. These include an operator dashboard, infrastructure instrumentation agents, bare metal drivers and other supporting services. Hardware and software vendors can gain insight into what integration looks like from a product point of view.
In this session, we will explore:
- Why TripleO works for infrastructure management
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- What TripleO means for hardware/software vendors
- Early work in this area
Red Hat Enteprise Linux Open Stack Platfrom Director
Red Hat Enterprise Linux OpenStack Platform director is a toolset for installing and managing a complete OpenStack environment. It is based primarily on the OpenStack project TripleO, which is an abbreviation for "OpenStack-On-OpenStack". This project takes advantage of OpenStack components to install a fully operational OpenStack environment. This includes new OpenStack components that provision and control bare metal systems to use as OpenStack nodes. This provides a simple method for installing a complete Red Hat Enterprise Linux OpenStack Platform environment that is both lean and robust.
TripleO
TripleO is an OpenStack project that aims to deploy OpenStack using OpenStack. It provides automation to deploy and test OpenStack clouds at the bare metal layer using tools like Heat, Diskimage-Builder, and Ironic. TripleO designs robust gold images to deploy consistently tested and reliable OpenStack environments, reducing costs of operations and maintenance through continuous integration and deployment techniques. By deploying OpenStack on bare metal with tools like Ironic, TripleO can reliably install and upgrade OpenStack clouds.
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RHEL OpenStack Platform director facilitates planning, deployment, and ongoing operations of RHEL OpenStack infrastructure. It provides a complete end-to-end solution for OpenStack business planning, system deployment, and infrastructure operations through APIs, CLI, and a dashboard. TripleO uses OpenStack components like Nova and Heat to deploy OpenStack to bare metal servers, treating hardware deployment like a special hypervisor. RHEL OpenStack Platform director manages both the production OpenStack cloud and the deployment and management "undercloud".
Triple o overview
TripleO is an OpenStack project that aims to provision OpenStack cloud services using OpenStack technologies. It uses Heat to orchestrate the installation and configuration of OpenStack on bare metal infrastructure to create an "undercloud". The undercloud then provisions an "overcloud" as an OpenStack tenant using the same OpenStack components and processes. This allows OpenStack to be deployed, managed and upgraded using its native APIs and processes. TripleO leverages technologies like Nova, Heat, diskimage-builder and Puppet/Chef to automate the deployment and lifecycle management of OpenStack clouds.
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1. What RHEL OSP Director is and how it is used to install, configure, and monitor RHEL OSP deployments through mechanisms like installing the installer, identifying target hosts, managing content, defining topology, and provisioning hardware.
2. How RHEL OSP Director uses upstream OpenStack components like TripleO, Ironic, and Heat along with Puppet to deploy the undercloud management nodes and overcloud workload nodes.
3. The steps to deploy the undercloud and overcloud through the director including configuring the undercloud, discovering
Extending TripleO for OpenStack Management
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Within this context, there are several areas of integration which can be explored. These include an operator dashboard, infrastructure instrumentation agents, bare metal drivers and other supporting services. Hardware and software vendors can gain insight into what integration looks like from a product point of view.
In this session, we will explore:
- Why TripleO works for infrastructure management
- TripleO management integration points
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- Early work in this area
Red Hat Enteprise Linux Open Stack Platfrom Director
Red Hat Enterprise Linux OpenStack Platform director is a toolset for installing and managing a complete OpenStack environment. It is based primarily on the OpenStack project TripleO, which is an abbreviation for "OpenStack-On-OpenStack". This project takes advantage of OpenStack components to install a fully operational OpenStack environment. This includes new OpenStack components that provision and control bare metal systems to use as OpenStack nodes. This provides a simple method for installing a complete Red Hat Enterprise Linux OpenStack Platform environment that is both lean and robust.
TripleO
TripleO is an OpenStack project that aims to deploy OpenStack using OpenStack. It provides automation to deploy and test OpenStack clouds at the bare metal layer using tools like Heat, Diskimage-Builder, and Ironic. TripleO designs robust gold images to deploy consistently tested and reliable OpenStack environments, reducing costs of operations and maintenance through continuous integration and deployment techniques. By deploying OpenStack on bare metal with tools like Ironic, TripleO can reliably install and upgrade OpenStack clouds.
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RHEL OpenStack Platform director facilitates planning, deployment, and ongoing operations of RHEL OpenStack infrastructure. It provides a complete end-to-end solution for OpenStack business planning, system deployment, and infrastructure operations through APIs, CLI, and a dashboard. TripleO uses OpenStack components like Nova and Heat to deploy OpenStack to bare metal servers, treating hardware deployment like a special hypervisor. RHEL OpenStack Platform director manages both the production OpenStack cloud and the deployment and management "undercloud".
Triple o overview
TripleO is an OpenStack project that aims to provision OpenStack cloud services using OpenStack technologies. It uses Heat to orchestrate the installation and configuration of OpenStack on bare metal infrastructure to create an "undercloud". The undercloud then provisions an "overcloud" as an OpenStack tenant using the same OpenStack components and processes. This allows OpenStack to be deployed, managed and upgraded using its native APIs and processes. TripleO leverages technologies like Nova, Heat, diskimage-builder and Puppet/Chef to automate the deployment and lifecycle management of OpenStack clouds.
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距離去年講述「運用 Docker 部署 PHP 專案」已經過了一年，Docker 生態系逐漸成長，Machine、Compose、Swarm 皆趨於穩定、值得投入。本議程將承襲去年議程的概念，並講述如何透過這些工具利用 Docker 協助我們更方便的開發、測試、部署、遷移我們的 PHP 專案。
Ps. 本議程謹會概略提到 Docker 概念作為複習，不會針對指令一一教學、建議會眾在議程前，能先了解 Docker 基本使用方式。
Preparation study of_docker - (MOSG)
Preparation study for Docker Event
Mulodo Open Study Group (MOSG) @Ho chi minh, Vietnam
http://www.meetup.com/Open-Study-Group-Saigon/events/229781420/
The Docker "Gauntlet" - Introduction, Ecosystem, Deployment, Orchestration
This document summarizes Docker's growth over 15 months, including its community size, downloads, projects on GitHub, enterprise support offerings, and the Docker platform which includes the Docker Engine, Docker Hub, and partnerships. It also provides overviews of key Docker technologies like libcontainer, libchan, libswarm, and how images work in Docker.
Rancher OS - A simplified Linux distribution built from containers, for conta...
Rancher OS - A simplified Linux distribution built from containers, for conta...Pier Alberto Pierini
This document provides instructions for installing and configuring RancherOS, a lightweight Linux distribution designed for running Docker containers. It describes setting up a RancherOS virtual machine using VirtualBox, installing RancherOS on the VM, configuring networking and authentication using a cloud-config.yml file, installing the Rancher server container to manage Docker hosts, and registering the RancherOS VM as the first host on the new Rancher server. The final steps are to configure an admin user on the Rancher UI and enjoy running Docker containers.JUDCon 2010 Boston : BoxGrinder
Bob McWhirter is a JBoss Fellow and Chief Architect of Middleware Cloud Computing. He founded The Codehaus, Drools, and TorqueBox. The document discusses BoxGrinder, a tool that can create virtual machine appliances from definition files in order to simplify deploying software to infrastructure platforms like Amazon EC2 or VMware. It describes how BoxGrinder supports both "baking" and "frying" approaches to creating VMs and walks through an example of using BoxGrinder to build a JBoss application server appliance.
廣宣學堂: 容器進階實務 - Docker進深研究班
1. The document summarizes the topics covered in an advanced Docker workshop, including Docker Machine, Docker Swarm, networking, services, GitLab integration, Raspberry Pi IoT applications, Docker Compose testing, and Moby/LinuxKit.
2. It provides instructions on using Docker Machine to create a Swarm cluster on Azure VMs and initialize a Swarm manager.
3. Exercises are presented on Docker networking, creating and scaling services, rolling updates, stacks, and Swarm with MySQL and WordPress.
Bare Metal to OpenStack with Razor and Chef
Razor is an open source provisioning tool that was originally developed by EMC and Puppet Labs. It can discover hardware, select images to deploy, and provision nodes using model-based provisioning. The demo showed setting up a Razor appliance, adding images, models, policies, and brokers. It then deployed an OpenStack all-in-one environment to a new VM using Razor and Chef. The OpenStack cookbook walkthrough explained the roles, environments, and cookbooks used to deploy and configure OpenStack components using Chef.
Docker 進階實務班
1. The document summarizes the topics covered in an advanced Docker workshop, including Docker Machine, Docker Swarm, networking, services, GitLab integration, IoT applications, Moby/LinuxKit, and a call to action to learn more about Docker on their own.
2. Specific topics included how to create Docker Machines on Azure, build a Swarm cluster, configure networking and services, integrate with GitLab for continuous integration/delivery, develop IoT applications using Docker on Raspberry Pi, and introduce Moby and LinuxKit for building customized container-based operating systems.
3. The workshop concluded by emphasizing business models, microservices, infrastructure as code, container design, DevOps, and
Automate drupal deployments with linux containers, docker and vagrant
This document discusses strategies for automating Drupal deployments using Linux containers, Vagrant, and Docker. It begins with an overview of virtual machines and their disadvantages compared to containers. It then covers using Linux containers (LXC), Vagrant, and Docker to build and deploy containerized Drupal environments that can be easily reproduced and deployed across different systems. The document provides examples of building Drupal containers using LXC, Vagrant, and Docker that take advantage of their portability and reproducibility.
Harmonious Development: Via Vagrant and Puppet
Through the magic of virtualization technology (Vagrant) and Puppet, a companion Enterprise grade provisioning technology, we explore how to make the complex configuration game a walk in the park. Bring new team members up to speed in minutes, eliminate variances in configurations, and make integration issues a thing of the past.
Welcome to the new age of team development!
Developing and Deploying PHP with Docker
The document discusses using Docker for developing and deploying PHP applications. It begins with an introduction to Docker, explaining that Docker allows applications to be assembled from components and eliminates friction between development, testing and production environments. It then covers some key Docker concepts like containers, images and the Docker daemon. The document demonstrates building a simple PHP application as a Docker container, including creating a Dockerfile and building/running the container. It also discusses some benefits of Docker like portability, separation of concerns between developers and DevOps, and immutable build artifacts.
Simple docker hosting in FIWARE Lab
How to deploy docker machine in FIWARE Lab OpenStack and use docker, docker-compose and docker swarm to work with dockers.
Lumen
The document provides an overview of the Lumen micro-framework by Laravel. It discusses Lumen's system requirements, how to install Lumen using Composer or the Lumen installer, configuring pretty URLs, the directory structure, HTTP routing, middleware, controllers, and views. Additional features covered include caching, databases, encryption, errors and logging, events, queues, testing, and more full-stack features like authentication and mail.
Automating CloudStack with Puppet - David Nalley
This document discusses using Puppet to automate the deployment and configuration of virtual machines (VMs) in an Apache CloudStack infrastructure. It describes how Puppet can be used to deploy and configure CloudStack VMs according to their roles by parsing userdata passed to the VMs at launch. Custom Puppet facts can extract role information from the userdata to classify nodes and apply the appropriate configuration. The CloudStack and Puppet APIs can be combined to fully automate the provisioning and configuration of VMs from a clean state using Puppet manifests and resources.
Automating Your CloudStack Cloud with Puppet
This document discusses automating the deployment and configuration of virtual machines (VMs) created with Apache CloudStack using Puppet. It provides an overview of CloudStack and its architecture before explaining how Puppet can be used to classify and configure VMs at launch based on custom facts extracted from metadata passed to the VM. The document recommends minimizing templates and configuring all VMs via Puppet for easy management at scale. It also describes how the CloudStack API can be used to programmatically deploy VMs that are then automatically configured by Puppet.
Deploying .net core apps to Docker - dotnetConf Local Bengaluru
Slide deck on getting started with docker + deploying .net core apps to docker containers used at dotnet conf local Bengaluru event.
How to create a multi tenancy for an interactive data analysis
Detailed process to create and configure an multi tenancy arquitecture with a Kerberized Spark Cluster, Livy and Zeppelin.
Postgres the hardway
Presentation at March 2019 Dutch Postgres User Group Meetup on lessons learnt while migrating from Oracle to Postgres, demo'ed via vagrant test environments and using generic pgbench datasets.
Azure Bootcamp 2016 - Docker Orchestration on Azure with Rancher
This document discusses Docker orchestration on Azure using Rancher. It begins with an introduction to Docker concepts like containers, images and the Docker workflow. It then demonstrates deploying a Rancher server on Azure, adding nodes, upgrading a sample application, enabling cross-region networking, auto-scaling services, and using a Docker volume plugin to connect to Azure File Storage for persistent storage. The document includes code samples and step-by-step demonstrations of these Rancher and Docker capabilities on Azure.
Similar to London open stack meet up - nov 2015 (20)
當專案漸趕，當遷移也不再那麼難 (Ship Your Projects with Docker EcoSystem)
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The Docker "Gauntlet" - Introduction, Ecosystem, Deployment, Orchestration
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Recently uploaded
Freshworks Rethinks NoSQL for Rapid Scaling & Cost-Efficiency
Freshworks creates AI-boosted business software that helps employees work more efficiently and effectively. Managing data across multiple RDBMS and NoSQL databases was already a challenge at their current scale. To prepare for 10X growth, they knew it was time to rethink their database strategy. Learn how they architected a solution that would simplify scaling while keeping costs under control.
JavaLand 2024: Application Development Green Masterplan
My presentation slides I used at JavaLand 2024
5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Main news related to the CCS TSI 2023 (2023/1695)
An English 🇬🇧 translation of a presentation to the speech I gave about the main changes brought by CCS TSI 2023 at the biggest Czech conference on Communications and signalling systems on Railways, which was held in Clarion Hotel Olomouc from 7th to 9th November 2023 (konferenceszt.cz). Attended by around 500 participants and 200 on-line followers.
The original Czech 🇨🇿 version of the presentation can be found here: https://www.slideshare.net/slideshow/hlavni-novinky-souvisejici-s-ccs-tsi-2023-2023-1695/269688092 .
The videorecording (in Czech) from the presentation is available here: https://youtu.be/WzjJWm4IyPk?si=SImb06tuXGb30BEH .
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
This LF Energy webinar took place June 20, 2024. It featured:
-Alex Thornton, LF Energy
-Hallie Cramer, Google
-Daniel Roesler, UtilityAPI
-Henry Richardson, WattTime
In response to the urgency and scale required to effectively address climate change, open source solutions offer significant potential for driving innovation and progress. Currently, there is a growing demand for standardization and interoperability in energy data and modeling. Open source standards and specifications within the energy sector can also alleviate challenges associated with data fragmentation, transparency, and accessibility. At the same time, it is crucial to consider privacy and security concerns throughout the development of open source platforms.
This webinar will delve into the motivations behind establishing LF Energy’s Carbon Data Specification Consortium. It will provide an overview of the draft specifications and the ongoing progress made by the respective working groups.
Three primary specifications will be discussed:
-Discovery and client registration, emphasizing transparent processes and secure and private access
-Customer data, centering around customer tariffs, bills, energy usage, and full consumption disclosure
-Power systems data, focusing on grid data, inclusive of transmission and distribution networks, generation, intergrid power flows, and market settlement data
inQuba Webinar Mastering Customer Journey Management with Dr Graham Hill
HERE IS YOUR WEBINAR CONTENT! 'Mastering Customer Journey Management with Dr. Graham Hill'. We hope you find the webinar recording both insightful and enjoyable.
In this webinar, we explored essential aspects of Customer Journey Management and personalization. Here’s a summary of the key insights and topics discussed:
Key Takeaways:
Understanding the Customer Journey: Dr. Hill emphasized the importance of mapping and understanding the complete customer journey to identify touchpoints and opportunities for improvement.
Personalization Strategies: We discussed how to leverage data and insights to create personalized experiences that resonate with customers.
Technology Integration: Insights were shared on how inQuba’s advanced technology can streamline customer interactions and drive operational efficiency.
Monitoring and Managing Anomaly Detection on OpenShift.pdf
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
Essentials of Automations: Exploring Attributes & Automation Parameters
Building automations in FME Flow can save time, money, and help businesses scale by eliminating data silos and providing data to stakeholders in real-time. One essential component to orchestrating complex automations is the use of attributes & automation parameters (both formerly known as “keys”). In fact, it’s unlikely you’ll ever build an Automation without using these components, but what exactly are they?
Attributes & automation parameters enable the automation author to pass data values from one automation component to the next. During this webinar, our FME Flow Specialists will cover leveraging the three types of these output attributes & parameters in FME Flow: Event, Custom, and Automation. As a bonus, they’ll also be making use of the Split-Merge Block functionality.
You’ll leave this webinar with a better understanding of how to maximize the potential of automations by making use of attributes & automation parameters, with the ultimate goal of setting your enterprise integration workflows up on autopilot.
Northern Engraving | Modern Metal Trim, Nameplates and Appliance Panels
What began over 115 years ago as a supplier of precision gauges to the automotive industry has evolved into being an industry leader in the manufacture of product branding, automotive cockpit trim and decorative appliance trim. Value-added services include in-house Design, Engineering, Program Management, Test Lab and Tool Shops.
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Join us to learn how UiPath Apps can directly and easily interact with prebuilt connectors via Integration Service--including Salesforce, ServiceNow, Open GenAI, and more.
The best part is you can achieve this without building a custom workflow! Say goodbye to the hassle of using separate automations to call APIs. By seamlessly integrating within App Studio, you can now easily streamline your workflow, while gaining direct access to our Connector Catalog of popular applications.
We’ll discuss and demo the benefits of UiPath Apps and connectors including:
Creating a compelling user experience for any software, without the limitations of APIs.
Accelerating the app creation process, saving time and effort
Enjoying high-performance CRUD (create, read, update, delete) operations, for
seamless data management.
Speakers:
Russell Alfeche, Technology Leader, RPA at qBotic and UiPath MVP
Charlie Greenberg, host
Demystifying Knowledge Management through Storytelling
The Department of Veteran Affairs (VA) invited Taylor Paschal, Knowledge & Information Management Consultant at Enterprise Knowledge, to speak at a Knowledge Management Lunch and Learn hosted on June 12, 2024. All Office of Administration staff were invited to attend and received professional development credit for participating in the voluntary event.
The objectives of the Lunch and Learn presentation were to:
- Review what KM ‘is’ and ‘isn’t’
- Understand the value of KM and the benefits of engaging
- Define and reflect on your “what’s in it for me?”
- Share actionable ways you can participate in Knowledge - - Capture & Transfer
"$10 thousand per minute of downtime: architecture, queues, streaming and fin...
Direct losses from downtime in 1 minute = $5-$10 thousand dollars. Reputation is priceless.
As part of the talk, we will consider the architectural strategies necessary for the development of highly loaded fintech solutions. We will focus on using queues and streaming to efficiently work and manage large amounts of data in real-time and to minimize latency.
We will focus special attention on the architectural patterns used in the design of the fintech system, microservices and event-driven architecture, which ensure scalability, fault tolerance, and consistency of the entire system.
Must Know Postgres Extension for DBA and Developer during Migration
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
Abstract: Discover how PostgreSQL extensions can be your secret weapon! This talk explores how key extensions enhance database capabilities and streamline the migration process for users moving from other relational databases like Oracle.
Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
Twitter: https://twitter.com/mydbopsofficial
Blogs: https://www.mydbops.com/blog/
Facebook(Meta): https://www.facebook.com/mydbops/
A Deep Dive into ScyllaDB's Architecture
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
Apps Break Data
How information systems are built or acquired puts information, which is what they should be about, in a secondary place. Our language adapted accordingly, and we no longer talk about information systems but applications. Applications evolved in a way to break data into diverse fragments, tightly coupled with applications and expensive to integrate. The result is technical debt, which is re-paid by taking even bigger "loans", resulting in an ever-increasing technical debt. Software engineering and procurement practices work in sync with market forces to maintain this trend. This talk demonstrates how natural this situation is. The question is: can something be done to reverse the trend?
Mutation Testing for Task-Oriented Chatbots
Conversational agents, or chatbots, are increasingly used to access all sorts of services using natural language. While open-domain chatbots - like ChatGPT - can converse on any topic, task-oriented chatbots - the focus of this paper - are designed for specific tasks, like booking a flight, obtaining customer support, or setting an appointment. Like any other software, task-oriented chatbots need to be properly tested, usually by defining and executing test scenarios (i.e., sequences of user-chatbot interactions). However, there is currently a lack of methods to quantify the completeness and strength of such test scenarios, which can lead to low-quality tests, and hence to buggy chatbots.
To fill this gap, we propose adapting mutation testing (MuT) for task-oriented chatbots. To this end, we introduce a set of mutation operators that emulate faults in chatbot designs, an architecture that enables MuT on chatbots built using heterogeneous technologies, and a practical realisation as an Eclipse plugin. Moreover, we evaluate the applicability, effectiveness and efficiency of our approach on open-source chatbots, with promising results.
GNSS spoofing via SDR (Criptored Talks 2024)
In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
This presentation delves into the development of a system designed to mimic Galileo's Open Service signal using software-defined radio (SDR) technology. We'll begin with a foundational overview of both Global Navigation Satellite Systems (GNSS) and the intricacies of digital signal processing.
The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
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London open stack meet up - nov 2015
- 1. OpenStack Lab With RHEL OSP 7, TripleO and director Ramon Acedo Red Hat OpenStack Specialist London OpenStack Meet-up, November 2015
- 2. Goals Experiment with RHEL OSP director in your own laptop Understand how TripleO is used to install OpenStack Prepare real environments
- 3. Tools Laptop with 16 GB of RAM and fast HDD If Mac OSX, VMware Fusion Professional If Linux, VMware Workstation or Libvirt+KVM
- 5. Create the VMs in your laptop
- 7. Set up the Undercloud network
- 8. Set up the Undercloud hostname
- 9. Install the Undercloud package
- 13. Download the Overcloud Images
- 14. Define the VMs as Ironic hosts
- 15. Import the VMs into Ironic
- 16. Discover the HW of the VMs
- 17. Add nodes to roles and create their flavors $ ironic node-update $node_id add properties/capabilities='profile:compute,boot_option:local' $ ironic node-update $node_id add properties/capabilities='profile:control,boot_option:local' $ openstack flavor create --id auto --ram 3000 --disk 17 --vcpus 2 --swap 2000 compute $ openstack flavor create --id auto --ram 3000 --disk 19 --vcpus 2 --swap 1500 control $ openstack flavor create --id auto --ram 3000 --disk 19 --vcpus 2 baremetal
- 18. Associate flavors to roles $ openstack flavor set --property "cpu_arch"="x86_64" --property "capabilities:boot_option"=" local" --property "capabilities:profile"="control" control $ openstack flavor set --property "cpu_arch"="x86_64" --property "capabilities:boot_option"=" local" --property "capabilities:profile"="compute" compute
- 19. Get the Heat templates
- 21. Write your network environment Heat template
- 22. Plan your controller’s NIC configuration
- 23. Write your controller’s NIC configuration Heat templates
- 24. Do the same with your compute node
- 25. Let’s enable swap, create the main template New template in: /home/stack/templates/firstboot/firstboot.yaml
- 26. Let’s enable swap, create the script And the userdata.yaml called from the template:
- 28. Let’s deploy the Overcloud $ openstack overcloud deploy --templates templates/openstack-tripleo-heat-templates/ -e templates/openstack-tripleo-heat-templates/environments/network-isolation.yaml -e templates/network-environment.yaml -e templates/firstboot/firstboot.yaml --control-flavor control --compute-flavor compute --neutron-tunnel-types vxlan --neutron-network-type vxlan --ntp-server clock.redhat.com