The document provides an overview of PuppetDB, which is a system for storing and querying data about infrastructure as code and system configurations. Some key points:
- PuppetDB stores immutable data about systems and allows querying of this data to enable higher-level infrastructure operations.
- It uses techniques like command query responsibility separation (CQRS) to separate write and read pipelines for better performance and reliability.
- The data is stored in a relational database for efficient querying, and queries are expressed in an abstract syntax tree (AST)-based language.
- The system is designed for speed, reliability, and ease of deployment in operations. It leverages techniques from Clojure and the JVM.
Introduction to Apache ZooKeeper | Big Data Hadoop Spark Tutorial | CloudxLabCloudxLab
Big Data with Hadoop & Spark Training: http://bit.ly/2kvXlPd
This CloudxLab Introduction to Apache ZooKeeper tutorial helps you to understand ZooKeeper in detail. Below are the topics covered in this tutorial:
1) Data Model
2) Znode Types
3) Persistent Znode
4) Sequential Znode
5) Architecture
6) Election & Majority Demo
7) Why Do We Need Majority?
8) Guarantees - Sequential consistency, Atomicity, Single system image, Durability, Timeliness
9) ZooKeeper APIs
10) Watches & Triggers
11) ACLs - Access Control Lists
12) Usecases
13) When Not to Use ZooKeeper
Introduction to Apache ZooKeeper | Big Data Hadoop Spark Tutorial | CloudxLabCloudxLab
Big Data with Hadoop & Spark Training: http://bit.ly/2kvXlPd
This CloudxLab Introduction to Apache ZooKeeper tutorial helps you to understand ZooKeeper in detail. Below are the topics covered in this tutorial:
1) Data Model
2) Znode Types
3) Persistent Znode
4) Sequential Znode
5) Architecture
6) Election & Majority Demo
7) Why Do We Need Majority?
8) Guarantees - Sequential consistency, Atomicity, Single system image, Durability, Timeliness
9) ZooKeeper APIs
10) Watches & Triggers
11) ACLs - Access Control Lists
12) Usecases
13) When Not to Use ZooKeeper
Новый InterSystems: open-source, митапы, хакатоныTimur Safin
Presentation for the 1st InterSystems Meetup in the Minsk:
- New and better InterSystems changes their practice.
- open-source repositories, meetups, and hackathon;
- CPM (package manager) as a good example of open-source project
Distributed system coordination by zookeeper and introduction to kazoo python...Jimmy Lai
Zookeeper is a coordination tool to let people build distributed systems easier. In this slides, the author summarizes the usage of zookeeper and provides Kazoo Python library as example.
Puppet is a configuration management tool which allows easy deployment and configuration ranging from 1 to 1 thousand servers (and even more). Even though its common knowledge for devops, puppet is still a strange piece of software for developers. How does it work and what can it do for you as a developer?
Basically everything you need to get started on your Zookeeper training, and setup apache Hadoop high availability with QJM setup with automatic failover.
->Introduction
->>What is Ansible?
->>Ansible history
->Basic concepts
->>Inventory
->>Playbook
->>Role
->>Module
->>Plugin
->Diving into Ansible roles
->>Getting started
->>Create a role
->>Roles under the hood
->>How to use roles?
We are excited to continue our work on BeanStalk with the introduction of a range of great new features. If you are a Python shop you'll learn how BeanStalk now supports Python containers and the Django and Flask frameworks. Hear about BeanStalk integration with RDS and how custom configuration of containers is possible through simple configuration files.
DevOpsDays Warsaw 2015: Running High Performance And Fault Tolerant Elasticse...PROIDEA
Published on Dec 7, 2015
Speaker: Rafał Kuć
Language: English
Search engine is a perfect candidate for a microservice component inside you architecture. Docker is a perfect container that we can use to pack up Elasticsearch. In this talk we start by learning how to run Elasticsearch in a Docker containers. However, this is only the beginning. Running containerized Elasticsearch nodes and doing that effectively and at scale takes a little more knowledge and work. Sure, containers can be easily started and stopped, but how do you do that with Elasticsearch inside them? Because of that, in this talk we’ll quickly run over the basic Docker+Elasticsearch setup and focus on harder problems like: * Architecting for Elasticsearch fault tolerance and high availability in containerized setup - using sharding, replication, node and shard-awareness for keeping your cluster green * Running Elasticsearch in different modes with re-usability in mind * Optimizing and tuning Elasticsearch for popular use cases like ELK * Ops/Devops - monitoring Elasticsearch & Docker together - which metrics to watch, what they mean, how to act on them and first of all, how to watch them.
Visit our website: http://2015.devopsdays.pl
Новый InterSystems: open-source, митапы, хакатоныTimur Safin
Presentation for the 1st InterSystems Meetup in the Minsk:
- New and better InterSystems changes their practice.
- open-source repositories, meetups, and hackathon;
- CPM (package manager) as a good example of open-source project
Distributed system coordination by zookeeper and introduction to kazoo python...Jimmy Lai
Zookeeper is a coordination tool to let people build distributed systems easier. In this slides, the author summarizes the usage of zookeeper and provides Kazoo Python library as example.
Puppet is a configuration management tool which allows easy deployment and configuration ranging from 1 to 1 thousand servers (and even more). Even though its common knowledge for devops, puppet is still a strange piece of software for developers. How does it work and what can it do for you as a developer?
Basically everything you need to get started on your Zookeeper training, and setup apache Hadoop high availability with QJM setup with automatic failover.
->Introduction
->>What is Ansible?
->>Ansible history
->Basic concepts
->>Inventory
->>Playbook
->>Role
->>Module
->>Plugin
->Diving into Ansible roles
->>Getting started
->>Create a role
->>Roles under the hood
->>How to use roles?
We are excited to continue our work on BeanStalk with the introduction of a range of great new features. If you are a Python shop you'll learn how BeanStalk now supports Python containers and the Django and Flask frameworks. Hear about BeanStalk integration with RDS and how custom configuration of containers is possible through simple configuration files.
DevOpsDays Warsaw 2015: Running High Performance And Fault Tolerant Elasticse...PROIDEA
Published on Dec 7, 2015
Speaker: Rafał Kuć
Language: English
Search engine is a perfect candidate for a microservice component inside you architecture. Docker is a perfect container that we can use to pack up Elasticsearch. In this talk we start by learning how to run Elasticsearch in a Docker containers. However, this is only the beginning. Running containerized Elasticsearch nodes and doing that effectively and at scale takes a little more knowledge and work. Sure, containers can be easily started and stopped, but how do you do that with Elasticsearch inside them? Because of that, in this talk we’ll quickly run over the basic Docker+Elasticsearch setup and focus on harder problems like: * Architecting for Elasticsearch fault tolerance and high availability in containerized setup - using sharding, replication, node and shard-awareness for keeping your cluster green * Running Elasticsearch in different modes with re-usability in mind * Optimizing and tuning Elasticsearch for popular use cases like ELK * Ops/Devops - monitoring Elasticsearch & Docker together - which metrics to watch, what they mean, how to act on them and first of all, how to watch them.
Visit our website: http://2015.devopsdays.pl
After many years of writing headlines and subject lines, direct mail packages and email blasts, blog posts and brochures, teasers and tweets, I've drawn some conclusions about what it takes to make a living as a copywriter.
So for those who are interested in learning more about this profession, here are my 10 ways to succeed as a copywriter...
Fórmulas de copywriting - Aprende a escribir de forma estratégicaSEMrush_es
Cuando vas a escribir algo lo peor que puede ocurrirte es el "síndrome de la página en blanco". Te sientas, te preparas para escribir y dices "¿y ahora qué escribo?". Para mí eso es algo del pasado. Desde que comencé a utilizar fórmulas de copywriting sé qué es lo que quiero escribir antes de empezar a hacerlo. ¿Te gustaría poder eliminar ese momento de incertidumbre y comenzar a escribir de forma estratégica? Esta presentación te ayudará a conseguirlo.
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!
Containerization is more than the new Virtualization: enabling separation of ...Jérôme Petazzoni
Docker offers a new, lightweight approach to application
portability. Applications are shipped using a common container format,
and managed with a high-level API. Their processes run within isolated
namespaces which abstract the operating environment, independently of
the distribution, versions, network setup, and other details of this
environment.
This "containerization" has often been nicknamed "the new
virtualization". But containers are more than lightweight virtual
machines. Beyond their smaller footprint, shorter boot times, and
higher consolidation factors, they also bring a lot of new features
and use cases which were not possible with classical virtual machines.
We will focus on one of those features: separation of operational
concerns. Specifically, we will demonstrate how some fundamental tasks
like logging, remote access, backups, and troubleshooting can be
entirely decoupled from the deployment of applications and
services. This decoupling results in independent, smaller, simpler
moving parts; just like microservice architectures break down large
monolithic apps in more manageable components.
5/13/13 presentation to Austin DevOps Meetup Group, describing our system for deploying 15 websites and supporting services in multiple languages to bare redhat 6 VMs. All system-wide software is installed using RPMs, and all application software is installed using GIT or Tarball.
Workflow story: Theory versus Practice in large enterprises by Marcin PiebiakNETWAYS
Uphill battle against large enterprise it environments and IT corporate culture. How those difficulties turned out opportunities and clever implementations. Interesting modules, integrations and workflow pieces.
SaltConf14 - Ben Cane - Using SaltStack in High Availability EnvironmentsSaltStack
An overview on the benefits and best practices of using SaltStack for consistency and automation in highly available enterprise environments such as financial services.
Code testing and Continuous Integration are just the first step in a source code to production process. Combined with infrastructure-as-code tools such as Puppet the whole process can be automated, and tested!
Introduction to automation in the cloud, why it's needed, what are the tools or ways of working, the processes, the best practises with some examples and takeaways.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
The Art of the Pitch: WordPress Relationships and SalesLaura Byrne
Clients don’t know what they don’t know. What web solutions are right for them? How does WordPress come into the picture? How do you make sure you understand scope and timeline? What do you do if sometime changes?
All these questions and more will be explored as we talk about matching clients’ needs with what your agency offers without pulling teeth or pulling your hair out. Practical tips, and strategies for successful relationship building that leads to closing the deal.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
17. Computer systems are in many ways
open systems, providing the keys to
the vault if one is so inclined to grab
them. But in order to foster an air of
immutability in our own systems,
it's of utmost importance to create a
façade of immutability. Immutability
-- The Joy of Clojure
requires that we layer over and
abstract the parts of our system that
provide unrestrained mutability.
49. Lessons learned from
writing the rest of
our software in Ruby
It’s...not speedy. Object creation,
method calls, garbage collection,
etc. “Magical” APIs amplify
the problem.
50. Lessons learned from
writing the rest of
our software in Ruby
Can only use one core!
Workarounds compromise
performance or simplicity
82. (Package[httpd] and country=fr)
or country=us
Package["mysql-server"]
and architecture=amd64
Erik Dalén, Spotify
https://github.com/dalen/puppet-puppetdbquery
96. (defn process-commands!
"Connect to an MQ an continually, sequentially process commands.
If the MQ consumption timeout is reached without any new data, the
function will terminate."
[connection endpoint discarded-dir options-map]
(let [producer (mq-conn/producer connection)
publish (partial mq-producer/publish producer endpoint)
on-message (produce-message-handler publish discarded-dir options-map)
mq-error (promise)
consumer (mq-conn/consumer connection
{:endpoint endpoint
:on-message on-message
:transacted true
:on-failure #(deliver mq-error (:exception %))})]
(mq-cons/start consumer)
;; Block until an exception is thrown by the consumer thread
(try
(deref mq-error)
(throw @mq-error)
(finally
(mq-cons/close consumer)))))
97. (defmacro with-error-delivery
"Executes body, and delivers an exception to the provided promise if one is
thrown."
[error & body]
`(try
~@body
(catch Exception e#
(deliver ~error e#))))
98. (defn filter-mbean
"Converts an mbean to a map. For attributes that can't be converted to JSON,
return a string representation of the value."
[mbean]
{:post [(map? %)]}
(into {} (for [[k v] mbean]
(cond
;; Nested structures should themselves be filtered
(map? v)
[k (filter-mbean v)]
;; Cheshire can serialize to JSON anything that
;; implements the JSONable protocol
(satisfies? JSONable v)
[k v]
:else
[k (str v)]))))
99. (defmacro with-test-broker
"Constructs and starts an embedded MQ, and evaluates `body` inside a
`with-open` expression that takes care of connection cleanup and MQ
tear-down.
`name` - The name to use for the embedded MQ
`conn-var` - Inside of `body`, the variable named `conn-var`
contains an active connection to the embedded broker.
Example:
(with-test-broker "my-broker" the-connetion
;; Do something with the connection
(prn the-connection))
"
[name conn-var & body]
`(let [dir# (fs/absolute-path (fs/temp-dir))
broker-name# ~name
conn-str# (str "vm://" ~name)
^BrokerService broker# (mq/build-embedded-broker broker-name# dir#)]
(.setUseJmx broker# false)
(.setPersistent broker# false)
(mq/start-broker! broker#)
(try
(with-open [~conn-var (mq/connect! conn-str#)]
~@body)
(finally
(mq/stop-broker! broker#)
(fs/delete-dir dir#)))))
103. Thousands of deployments,
Hundreds of threads per install,
Zero deadlocks,
Zero bugs involving clojure state
companion Ruby code has
~10x the defect rate
104. Users dig the uberjar,
makes deployment
straightforward and
less error-prone