This document provides an overview and introduction to using Docker in production environments. It discusses how Docker can help with "solved" problems like installing, building, and distributing applications. It also covers important areas for production Docker usage, such as service discovery, orchestration, performance, configuration management, and sysadmin tasks. The document outlines various approaches in each area and notes that there are often multiple valid solutions to consider.
Docker has created enormous buzz in the last few years. Docker is a open-source software containerization platform. It provides an ability to package software into standardised units on Docker for software development. In this hands-on introductory session, I introduce the concept of containers, provide an overview of Docker, and take the participants through the steps for installing Docker. The main session involves using Docker CLI (Command Line Interface) - all the concepts such as images, managing containers, and getting useful work done is illustrated step-by-step by running commands.
MIT Licensed - Reuse freely, but attribute "Hamilton Turner"
An introduction to the Docker container engine. Focuses on how to use Docker and implications of Docker for Cloud-based services. Shows multiple examples of rapidly starting complex environments using Docker. Very minor discussion on how Docker works technically.
Presentation source is available at https://github.com/hamiltont/intro-to-docker
Docker and Containers for Development and Deployment — SCALE12XJérôme Petazzoni
Docker is an Open Source engine to build, run, and manage containers. We'll explain what are Linux Containers, what powers them (under the hood), and what extra value Docker brings to the table. Then we'll see what the typical Docker workflow looks like from a developer point of view. We'll also give an Ops perspective, including deployment options. If you already saw a "Docker 101", consider this presentation as the February 2014 update! :-)
Docker has created enormous buzz in the last few years. Docker is a open-source software containerization platform. It provides an ability to package software into standardised units on Docker for software development. In this hands-on introductory session, I introduce the concept of containers, provide an overview of Docker, and take the participants through the steps for installing Docker. The main session involves using Docker CLI (Command Line Interface) - all the concepts such as images, managing containers, and getting useful work done is illustrated step-by-step by running commands.
MIT Licensed - Reuse freely, but attribute "Hamilton Turner"
An introduction to the Docker container engine. Focuses on how to use Docker and implications of Docker for Cloud-based services. Shows multiple examples of rapidly starting complex environments using Docker. Very minor discussion on how Docker works technically.
Presentation source is available at https://github.com/hamiltont/intro-to-docker
Docker and Containers for Development and Deployment — SCALE12XJérôme Petazzoni
Docker is an Open Source engine to build, run, and manage containers. We'll explain what are Linux Containers, what powers them (under the hood), and what extra value Docker brings to the table. Then we'll see what the typical Docker workflow looks like from a developer point of view. We'll also give an Ops perspective, including deployment options. If you already saw a "Docker 101", consider this presentation as the February 2014 update! :-)
Introduction to Docker and all things containers, Docker Meetup at RelateIQdotCloud
Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
Introduction to Docker presented by MANAOUIL Karim at the Shellmates's Hack.INI event. The teams deployed were assisted to deploy a Python Flask application behind an Nginx load balancer.
Docker for the new Era: Introducing Docker,its components and toolsRamit Surana
Containers have been evolved from generations behind today.So what's new with Docker ? What has changed during the current scenario ? Find out more on docker and how to implement it in your environments in the above slide show.
Docker is one of the fastest-growing open source projects ever, and the ecosystem that has grown around it is evolving at a similar pace. For these reasons, we want to introduce developers, system administrators, and other computer users of a mixed skillset to the Docker project and Linux container concepts.
Introduction to dockerfile, SF Peninsula Software Development Meetup @Guidewire dotCloud
Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
Introduction to Docker and all things containers, Docker Meetup at RelateIQdotCloud
Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
Introduction to Docker presented by MANAOUIL Karim at the Shellmates's Hack.INI event. The teams deployed were assisted to deploy a Python Flask application behind an Nginx load balancer.
Docker for the new Era: Introducing Docker,its components and toolsRamit Surana
Containers have been evolved from generations behind today.So what's new with Docker ? What has changed during the current scenario ? Find out more on docker and how to implement it in your environments in the above slide show.
Docker is one of the fastest-growing open source projects ever, and the ecosystem that has grown around it is evolving at a similar pace. For these reasons, we want to introduce developers, system administrators, and other computer users of a mixed skillset to the Docker project and Linux container concepts.
Introduction to dockerfile, SF Peninsula Software Development Meetup @Guidewire dotCloud
Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
Introduction to Docker at the Azure Meet-up in New YorkJérôme Petazzoni
This is the presentation given at the Azure New York Meet-Up group, September 3rd.
It includes a quick overview of the Open Source Docker Engine and its associated services delivered through the Docker Hub. It also covers the new features of Docker 1.0, and briefly explains how to get started with Docker on Azure.
Containers, Docker, and Microservices: the Terrific TrioJérôme Petazzoni
One of the upsides of Microservices is the ability to deploy often,at arbitrary schedules, and independently of other services, instead of requiring synchronized deployments happening on a fixed time.
But to really leverage this advantage, we need fast, efficient, and reliable deployment processes. That's one of the value propositions of Containers in general, and Docker in particular.
Docker offers a new, lightweight approach to application portability.It can build applications using easy-to-write, repeatable, efficient recipes; then it can ship them across environments using a common container format; and it can run them within isolated namespaces which abstract the operating environment, independently of the distribution,versions, network setup, and other details of this environment.
But Docker can do way more than deploy your apps. Docker also enables you to generalize Microservices principles and apply them on operational tasks like logging, remote access, backups, and troubleshooting.This decoupling results in independent, smaller, simpler moving parts.
Why everyone is excited about Docker (and you should too...) - Carlo Bonamic...Codemotion
In less than two years Docker went from first line of code to major Open Source project with contributions from all the big names in IT. Everyone is excited, but what's in for me - as a Dev or Ops? In short, Docker makes creating Development, Test and even Production environments an order of magnitude simpler, faster and completely portable across both local and cloud infrastructure. We will start from Docker main concepts: how to create a Linux Container from base images, run your application in it, and version your runtimes as you would with source code, and finish with a concrete example.
Dockerizing Symfony2 application. Why Docker is so cool And what is Docker? And what are Containers? How they works? What are the ecosystem of Docker? And how to dockerize your web application (can be based on Symfony2 framework)?
Docker is the Open Source container engine. It lets you author, run, and manage software containers. Escape from dependency hell, and make deployment a breeze! This presentation includes the standard Docker intro (actualized for Docker 0.11) as well as some insights about how to perform orchestration and multi-host container linking.
If you're not familiar with Docker yet, here is your chance to catch up: a quick overview of the Open Source Docker Engine, and its associated services delivered through the Docker Hub. It also includes Jérôme will also discuss the new features of Docker 1.0, and briefly explain how you can run and maintain Docker on Azure. In addition, an Azure team member will demonstrate how deploy docker to Azure. The presentation will be followed by a Q&A session!
Docker Tips And Tricks at the Docker Beijing MeetupJérôme Petazzoni
This talk was presented in October at the Docker Beijing Meetup, in the VMware offices.
It presents some of the latest features of Docker, discusses orchestration possibilities with Docker, then gives a briefing about the performance of containers; and finally shows how to use volumes to decouple components in your applications.
Docker 1 0 1 0 1: a Docker introduction, actualized for the stable release of...Jérôme Petazzoni
If you're not familiar yet with Docker, here is your chance to catch up. This presentation includes a quick overview of the Open Source Docker Engine, and its associated services delivered through the Docker Hub. Recent features are listed, as well as a glimpse at what's next in the Docker world.
This presentation was given during OSCON, at a meet-up hosted by New Relic, with co-presentations from CoreOS and Rackspace OnMetal.
JDD2014: Docker.io - versioned linux containers for JVM devops - Dominik DornPROIDEA
This presentation will introduce you to Docker - the new shiny star on the Devops horizon. It will teach you everything you need to know to get started with Docker, why you'd want to use it and which tools to use to get the most out of it. Additionally to showing the basics, it will introduce helpful libraries available for the JVM and how they can be used together with Docker to create secure, scalable and maintainable cloud setups for your applications.
Docker is in all the news and this talk presents you the technology and shows you how to leverage it to build your applications according to the 12 factor application model.
Accelerate your software development with DockerAndrey Hristov
Docker is in all the news and this talk presents you the technology and shows you how to leverage it to build your applications according to the 12 factor application model.
Use the Source or Join the Dark Side: differences between Docker Community an...Jérôme Petazzoni
The Docker Project delivers a complete open source platform to “build, ship, and run” any application, anywhere, using containers. The Docker Engine and the other main components (Compose, Machine,
and the SwarmKit orchestration system) are free; but Docker Inc. (the company who started the Docker Project) also has a complete commercial offering named “Docker EE” (for Enterprise Edition) that adds an extra set of features geared at larger organizations, as well as an extended support and release cycle.
In this talk, I will explain (and show with demos) what you can do using exclusively Docker CE (community, free edition) and which features are added by Docker EE. This talk is for you if you are in the process of selecting a container platform; or if you’re just curious, and want to know exactly what you can do (and cannot do) with Docker CE and EE.
Orchestration, resource scheduling…What does that mean? Is this only relevant for data centers with thousands of nodes? Should I care about Mesos, Kubernetes, Swarm, when all I have is a handful of virtual machines? The motto of public cloud IAAS is "pay for what you use," so in theory, if I deploy my apps there, I'm already getting the best "resource utilization" aka "bang for my buck," right? In this talk, we will answer those questions, and a few more. We will define orchestration, scheduling, and others, and show what it's like to use a scheduler to run containerized applications there.
Cgroups, namespaces, and beyond: what are containers made from? (DockerCon Eu...Jérôme Petazzoni
Linux containers are different from Solaris Zones or BSD Jails: they use discrete kernel features like cgroups, namespaces, SELinux, and more. We will describe those mechanisms in depth, as well as demo how to put them together to produce a container. We will also highlight how different container runtimes compare to each other.
This talk was delivered at DockerCon Europe 2015 in Barcelona.
Docker : quels enjeux pour le stockage et réseau ? Paris Open Source Summit ...Jérôme Petazzoni
Présentation donnée le 18 novembre 2015 au Paris Open Source Summit par Hervé Leclerc (Alterway) et Jérôme Petazzoni (Docker), présentant entre autres les nouvelles fonctionalités de Docker pour le stockage et le réseau arrivées dans la version 1.9 du Docker Engine.
Making DevOps Secure with Docker on Solaris (Oracle Open World, with Jesse Bu...Jérôme Petazzoni
Docker, the container Engine and Platform, is coming to Oracle Solaris! This is the talk that Jérôme Petazzoni (Docker) and Jesse Butler (Oracle) gave at Oracle Open World in November 2015.
Containers, docker, and security: state of the union (Bay Area Infracoders Me...Jérôme Petazzoni
Docker is two years old. While security has always been at the core of the questions revolving around Docker, the nature of those questions has changed. Last year, the main concern was "can I safely colocate containers on the same machine?" and it elicited various responses. Dan Walsh, SELinux expert, notoriously said: "containers do not contain!", and at last year's LinuxCon, Jérôme delivered a presentation detailing how to harden Docker and containers to isolate them better. Today, people have new concerns. They include image transport, vulnerability mitigation, and more.
After a recap about the current state of container security, Jérôme will explain why those new questions showed up, and most importantly, how to address them and safely deploy containers in general, and Docker in particular.
From development environments to production deployments with Docker, Compose,...Jérôme Petazzoni
In this session, we will learn how to define and run multi-container applications with Docker Compose. Then, we will show how to deploy and scale them seamlessly to a cluster with Docker Swarm; and how Amazon EC2 Container Service (ECS) eliminates the need to install,operate, and scale your own cluster management infrastructure. We will also walk through some best practice patterns used by customers for running their microservices platforms or batch jobs. Sample code and Compose templates will be provided on GitHub afterwards.
How to contribute to large open source projects like Docker (LinuxCon 2015)Jérôme Petazzoni
Contributing to a large open source project can seem daunting at first; but fear not! You too can join thousands of successful contributors. First, you don't have to be an expert in Golang, Python, or C, to contribute to Docker, OpenStack, or the Linux Kernel. Many projects also need help with documentation, translation, testing, triaging issues, and more. Very often, just going through bug reports to reproduce them and confirm "this also happens on my setup, with version XYZ" is extremely helpful.
If you decide to take the leap and propose a change (be it code or documentation), each open source project has different contribution guidelines and workflows.
In this talk, Arnaud and Jérôme will explain some of those workflows, how maintainers review your patches, and highlight the details that make your changes more likely to be merged into the project.
Containers, Docker, and Security: State Of The Union (LinuxCon and ContainerC...Jérôme Petazzoni
Docker is two years old. While security has always been at the core of the questions revolving around Docker, the nature of those questions has changed. Last year, the main concern was "can I safely colocate containers on the same machine?" and it elicited various responses. Dan Walsh, SELinux expert, notoriously said: "containers do not contain!", and at last year's LinuxCon, Jérôme delivered a presentation detailing how to harden Docker and containers to isolate them better.
Today, people have new concerns. They include image transport, vulnerability mitigation, and more.
After a recap about the current state of container security, Jérôme will explain why those new questions showed up, and most importantly, how to address them and safely deploy containers in general, and Docker in particular.
Anatomy of a Container: Namespaces, cgroups & Some Filesystem Magic - LinuxConJérôme Petazzoni
Containers are everywhere. But what exactly is a container? What are they made from? What's the difference between LXC, butts-nspawn, Docker, and the other container systems out there? And why should we bother about specific filesystems?
In this talk, Jérôme will show the individual roles and behaviors of the components making up a container: namespaces, control groups, and copy-on-write systems. Then, he will use them to assemble a container from scratch, and highlight the differences (and likelinesses) with existing container systems.
Deploy microservices in containers with Docker and friends - KCDC2015Jérôme Petazzoni
Docker lets us build, ship, and run any Linux application, on any platform. It found many early adopters in the CI/CD industry, long before it reached the symbolic 1.0 milestone and was considered "production-ready." Since then, its stability and features attracted enterprise users in many different fields, including very demanding ones like finance, banking, or intelligence agencies.
We will see how Docker is particularly suited to the deployment of distributed applications, and why it is an ideal platform for microservice architectures. In particular, we will look into three Docker related projects that have been announced at DockerCon Europe last December: Machine, Swarm, and Compose, and we will explain how they improve the way we build, deploy, and scale distributed applications.
Containers: from development to production at DevNation 2015Jérôme Petazzoni
In Docker, applications are shipped using a lightweight format, managed with a high-level API, and run within software containers which abstract the host environment. Operating details like distributions, versions, and network setup no longer matter to the application developer.
Thanks to this abstraction level, we can use the same container across all steps of the life cycle of an application, from development to production. This eliminates problems stemming from discrepancies between those environments.
Even so, these environments will always have different requirements. If our quality assurance (QA) and production systems use different logging systems, how can we still ship the same container to both? How can we satisfy the backup and security requirements of our production stack without bloating our development stack?
In this sess, you will learn about the unique features in containers that allow you to cleanly decouple system administrator tasks from the core of your application. We’ll show you how this decoupling results in smaller, simpler containers, and gives you more flexibility when building, managing, and evolving your application stacks.
Immutable infrastructure with Docker and containers (GlueCon 2015)Jérôme Petazzoni
"Never upgrade a server again. Never update your code. Instead, create new servers, and throw away the old ones!"
That's the idea of immutable servers, or immutable infrastructure. This makes many things easier: rollbacks (you can always bring back the old servers), A/B testing (put old and new servers side by side), security (use the latest and safest base system at each deploy), and more.
However, throwing in a bunch of new servers at each one-line CSS change is going to be complicated, not to mention costly.
Containers to the rescue! Creating container "golden images" is easy, fast, dare I say painless. Replacing your old containers with new ones is also easy to do; much easier than virtual machines, let alone physical ones.
In this talk, we'll quickly recap the pros (and cons) of immutable servers; then explain how to implement that pattern with containers. We will use Docker as an example, but the technique can easily be adapted to Rocket or even plain LXC containers.
The Docker ecosystem and the future of application deploymentJérôme Petazzoni
Ten years ago, virtualization ignited a revolution which gave birth to the Cloud and the DevOps initiative. Today, with containers, we are at the dawn of a similar breakthrough.
How can we capture the value of containers? How can we use their features to implement microservices and immutable infrastructures, while retaining as much as possible of our existing practices? The answer is in the rich ecosystem that developed around Docker, an open-source platform to build, ship, and run applications in containers.
In this keynote we’ll explore what the applications of tomorrow will look like, how they’ll be deployed and distributed – and how to leverage those tools today.
Docker landed almost two years ago, making it possible to build, ship, and run
any Linux application, on any platform, it was quickly adopted by developers
and ops, like no other tool before. The CI/CD industry even took it to
production long before it was stamped "production-ready."
Why does everyone (or almost!) love Docker? Because it puts powerful
automation abilities within the hands of normal developers. Automation
almost always involves building distribution packages, virtual machine
images, or writing configuration management manifests. With Docker,
those tasks are radically transformed: sometimes they're far easier than before,
other times they're no longer needed at all. Either way, the intervention
of a seasoned sysadmin guru is no longer required.
Introduction to Docker, December 2014 "Tour de France" Bordeaux Special EditionJérôme Petazzoni
Docker, the Open Source container Engine, lets you build, ship and run, any app, anywhere.
This is the presentation which was shown in December 2014 for the last stop of the "Tour de France" in Bordeaux. It is slightly different from the presentation which was shown in the other cities (http://www.slideshare.net/jpetazzo/introduction-to-docker-december-2014-tour-de-france-edition), and includes a detailed history of dotCloud and Docker and a few other differences.
Special thanks to https://twitter.com/LilliJane and https://twitter.com/zirkome, who gave me the necessary motivation to put together this slightly different presentation, since they had already seen the other presentation in Paris :-)
Introduction to Docker, December 2014 "Tour de France" EditionJérôme Petazzoni
Docker, the Open Source container Engine, lets you build, ship and run, any app, anywhere.
This is the presentation which was shown in December 2014 for the "Tour de France" in Paris, Lille, Lyon, Nice...
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.
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.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
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.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
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
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
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.
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
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.
2. Jérôme Petazzoni (@jpetazzo)
Grumpy French DevOps
- Go away or I will replace you with a very small shell script
Wrote dotCloud PAAS deployment tools
- EC2, LXC, Puppet, Python, Shell, ØMQ...
Docker contributor
- Security, networking...
Runs all kinds of crazy things in Docker
- Docker-in-Docker, VPN-in-Docker,
KVM-in-Docker, Xorg-in-Docker...
3. Outline
Quick recap on Docker and its 1.0 release
“Solved” problems: install, build, distribute
Service discovery & general plumbing
Orchestration (running many containers)
Performance (measuring it & improving it)
Configuration management
Sysadmin chores: logging, backups, remote access
4. One-slide elevator pitch about Docker
Docker is an Open Source engine for containers
- build, ship, run your applications within containers (=lightweight VMs)
Docker enables separation of concerns
- devs put their apps in containers
- ops run the containers
It's (probably) one of the most active FOSS projects today
- more than 500 contributors in the last year
- includes major contributions from e.g. Google, Red Hat...
5. Docker 1.0 1.1 1.1.1 is here!
Docker 1.0 released last month for DockerCon
Random pick of recent features:
- pause/unpause (helps to get consistent commit/snapshot)
- SELinux (for, you know, security)
- network superpowers with docker run --net …
More importantly: it's stamped “production-ready”
- you can buy support contracts, training...
(in addition to the traditional t-shirts and stickers )☺
6. Installation
On your dev machine: boot2docker
- tiny VM (25 MB), works with all virtualization types
- wrapper script (OS X only) to run docker CLI locally
- future improvements: shared volumes with docker run -v …
On your servers: which distro?
- use something recent (Ubuntu 14.04 LTS, RHEL 7, Fedora 20...)
- special distros: CoreOS, Project Atomic — new but promising
7. Build with Dockerfiles
FROM ubuntu:14.04
MAINTAINER Docker Education Team <education@docker.com>
RUN apt-get update
RUN apt-get install -y nginx
RUN echo 'Hi, I am in your container'
>/usr/share/nginx/html/index.html
CMD [ "nginx", "-g", "daemon off;" ]
EXPOSE 80
8. Build with Dockerfiles
Great for most purposes
- caching system allows full rebuilds that are still fast
Drawbacks (a.k.a. work in progress)
- separate build/run environments
(don't ship that 5 GB build image if you just need the 10 MB artifact)
- entitlement, credentials, and other secrets
(what if the build process needs to access a private repository?)
Workarounds
- use two Dockerfiles; keep Dockerfiles and images private
9. Distribute and ship images
Docker Hub
- docker push, docker pull: it's magic!
- public and private images
- no on prem version yet; but it's one of the most requested features
Run your own registry
- docker run registry # “docker run -P” to expose it to LAN
- defaults to local storage
- can use cloud object storage (Swift, GCE, S3, Elliptics...)
10. Distribute and ship images
Hack around docker load/save
- load/save works with plain tarballs
- put them wherever you want them
- https://github.com/blake-education/dogestry (much image, such docker, wow)
Work in progress: pluggable transports
- many things are damn good at moving diffs (git, rsync...)
- can we borrow something from them?
11. Service discovery
There's more than one way to do it
- inject everything we need through environment
docker run -e DB_HOST=… -e DB_PORT=… -e …
- bind-mount a configuration file into the container
docker run -v /etc/docker/config/myapp.yaml:/config.yaml …
- resolve everything we need through a highly-available key-value store
(zookeeper, etcd, consul...)
- resolve everything we need through DNS
(consul, skydns, skydock, dnsmasq...)
12. How do they compare?
Let's grade those
different methods!
14. Docker links
docker run -d --name frontdb mysqlimage
docker run -d --link frontdb:sql webimage
DNS entries are created in containers
Environment variables are injected in 2nd
container
SQL_PORT=tcp://172.17.0.10:5432
SQL_PORT_5432_TCP=tcp://172.17.0.10:5432
SQL_PORT_5432_TCP_ADDR=172.17.0.10
SQL_PORT_5432_TCP_PORT=5432
SQL_PORT_5432_TCP_PROTO=tcp
Doesn't work across multiple Docker hosts
15. Service discovery:
environment variables
Easy to integrate in your code
- is there any language that does not support environment variables?
Easy to setup
- start services, lookup ports, inject variables
Even easier with links
- fully automatic if using only one host
Static
- if a service moves, cannot update environment variables
17. Service discovery:
bind-mount configuration file
Easy to integrate in your code
- again, is there a language without a decent JSON/YAML parser?
Easy to setup
- just like environment variables, but generate a file
Kind of dynamic
- it's possible to update the configuration files while services run
But not really
- services have to detect the change and reload the file
19. Service discovery:
key-value store
Harder to integrate in your code
- HTTP requests instead of getenv are not too hard, but still
Harder to setup
- must setup the key-value store; on multiple nodes
Kind of dynamic
- most of those key-value stores support “watch” operation
But not really
- services still have to detect the change and reload the file
21. Service discovery:
DNS
Easy to integrate in your code
- in most cases, no integration is needed at all, works out of the box
Harder to setup*
- must setup a DNS system that you can easily update
Dynamic
- you can update DNS zones, no problem
No “push”, but...
- services won't detect a change, but if something wrong happens
(and results into a disconnection) they might re-resolve and retry
*Except on a single host, if you use links, since they automatically create DNS entries.
25. The ambassador pattern
host 1 (database)
docker run -d -name frontdb mysqlimage
docker run -d -link frontdb:sql wiring
host 2 (web tier)
docker run -d -name frontdb wiring
docker run -d -link frontdb:sql nginximage
26. database host web host
database container
I'm frontdb!
web container
I want to talk to frontdb!
wiring container
I actually talk to frontdb!
wiring container
I pretend I'm frontdb!
docker
link
docker
link
?
27. database host web host
database container
I'm frontdb!
web container
I want to talk to frontdb!
wiring container
I actually talk to frontdb!
wiring container
I pretend I'm frontdb!
docker
link
docker
link
?
28.
29. database host web host
database container
I'm frontdb!
web container
I want to talk to frontdb!
wiring container
I actually talk to frontdb!
wiring container
I pretend I'm frontdb!
docker
link
docker
link
UNICORNS
30. “...Unicorns?”
Work in progress, but you can look at:
- Docksul
https://github.com/progrium/docksul
- Grand Ambassador
https://github.com/cpuguy83/docker-grand-ambassador
Or roll your own
- use some highly-available key-value store (yup, they're back too!)
- HAProxy, stunnel, iptables...
31. Service discovery:
links with ambassadors
Easy to integrate in your code
- it's still environment variables
Easy to setup in dev, harder in production
- use normal links in dev; get the big guns out only in prod
Dynamic
- the ambassadors can reroute traffic if necessary
34. Orchestration
There's more than one way to do it (again!)
- describe your stack in files (Fig, Maestro-NG, Ansible and other CMs)
- submit requests through an API (Mesos)
- implement something that looks like a PAAS (Flynn, Deis, OpenShift)
- the “new wave” (Kubernetes, Centurion, Helios...)
- OpenStack (because OpenStack can do everything!)
36. Do you (want to) use OpenStack?
Yes
- if you are building a PAAS, keep an eye on Solum
(and consider contributing)
- if you are moving VM workloads to containers, use Nova
(that's probably what you already have; just enable the Docker driver)
- otherwise, use Heat
(and use Docker resources in your Heat templates)
No
- go to next slide
37. Are you looking for a PAAS?
Yes
- CloudFoundry (Ruby, but increasing % Go)
- Deis (Python, Docker-ish, runs on top of CoreOS)
- Dokku (A few 100s of line of Bash!)
- Flynn (Go, bleeding edge)
- OpenShift geard (Go)
Choose wisely (or go to the next slide)
- http://blog.lusis.org/blog/2014/06/14/paas-for-realists/
“I don’t think ANY of the current private PaaS solutions are a fit right now.”
38. How many Docker hosts do you have?
Only one per app or environment
- Fig
A few (up to ~10)
- Maestro-NG
- your favorite CM (e.g. Ansible has a nice Docker module)
A lot
- Mesos
- have a look at (and contribute to) the “new wave”
(Centurion, Helios, Kubernetes...)
39. Work in progress: libswarm
Run <something> that...
- exposes the Docker API
- talks to real Docker hosts
- spins Docker hosts up and down as needed
- takes care of scheduling, plumbing, scaling...
Use your normal client to talk to that <something>
- it looks like a Docker host
- but it's an elastic, scalable, dynamic, magic Docker host
https://github.com/docker/libswarm
40. Performance: measure things
cgroups give us per-container...
- CPU usage
- memory usage (fine-grained: cache and resident set size)
- I/O usage (per device, reads vs writes, in bytes and in ops)
cgroups don't give us...
- network metrics (have to do tricks with network namespaces)
https://github.com/google/cadvisor
http://jpetazzo.github.io/2013/10/08/docker-containers-metrics/
41. Performance: tweak things
There isn't much to tweak!
- CPU: native
- I/O: native on volumes
(make sure that your data set etc. is on volumes)
- memory: no overhead if you disable memory accounting
(userful for HPC; probably not for everything else)
- network: no overhead if you run with “--net host”
(useful for >1 Gb/s workloads)
(or if you have a high packet rate; e.g. VOIP, gaming...)
42. Configuration management
There is more than one way do to it (surprise!)
If you don't use a CM system yet, you don't have to
- If you're familiar with a CM system, you can use it to encode small-
scale deployments (up to, say, 10 nodes)
Using CM to manage Docker hosts makes sense
But Dockerfiles will be great for apps themselves
If you really want to keep using your recipes,
here's how to integrate!
43. Configuration management,
if you want to mix VMs and containers
Author a single generic Docker image with your
favorite CM, “locked and loaded”
When creating a container from that image, you give
it its identity (certificate/node name/...)
When the container starts, it contacts the server,
which gives it its configuration (manifests, cookbooks...)
After a moment, it will converge to desired state
Downside: slow to converge; not 100% reliable
44. Configuration management,
if you want to mix VMs and containers
Author a single generic Docker image with your
favorite CM, “locked and loaded”
When creating a container from that image, you give
it its identity (certificate/node name/...)
When the container starts, it contacts the server,
which gives it its configuration (manifests, cookbooks...)
After a moment, it will converge to desired state
Downside: slow to converge; not 100% reliable
NOT RECOMMENDED
45. Configuration management,
the “immutable infrastructure” way
Author a single generic Docker image with your
favorite CM, to be used as a base for other images
Author other Docker images:
FROM me/my_base_puppet_image
ADD manifests/ /etc/puppet/manifests
RUN puppet apply --certname db1138.dystopia.io
Once the image is baked, you don't have to fry it
(i.e. it's ready to run without extra steps)
Downside: build new image to make a change
(can be seen as an advantage)
46. Configuration management,
the “immutable infrastructure” way
Author a single generic Docker image with your
favorite CM, to be used as a base for other images
Author other Docker images:
FROM me/my_base_puppet_image
ADD manifests/ /etc/puppet/manifests
RUN puppet apply --certname db1138.dystopia.io
Once the image is baked, you don't have to fry it
(i.e. it's ready to run without extra steps)
Downside: build new image to make a change
(can be seen as an advantage)
SLIGHTLY BETTER
(BUT STILL KIND OF MEH)
48. File-level backups
Use volumes
docker run --name mysqldata -v /var/lib/mysql busybox true
docker run --name mysql --volumes-from mysqldata mysql
docker run --rm --volumes-from mysqldata mysqlbackup
tar -cJf- /var/lib/mysql | stream-it-to-the-cloud.py
Of course, you can use anything fancier than tar
(e.g. rsync, tarsnap...)
49. Data-level backups
Use links
docker run --name mysql mysql
docker run --rm --link mysql:db mysqlbackup
mysqldump --all-databases | stream-it-to-the-cloud.py
Can be combined with volumes
- put the SQL dump on a volume
- then backup that volume with file-level tools (previous slide)
50. Logging for legacy apps
Legacy = let me write to eleventy jillion arbitrary files
in /var/lib/tomcat/logs!
Solution: volumes
docker run --name logs -v /var/lib/tomcat/logs busybox true
docker run --name tomcat --volumes-from logs my_tomcat_image
- Inspect logs:
docker run --rm --volumes-from logs ubuntu bash
- Ship logs to something else:
docker run --name logshipper --volumes-from logs sawmill
51. Logging for dockerized apps
Dockerized = I only write to stdout
Solution: Docker CLI/API
docker run --name tomcat dockerized_tomcat
docker logs tomcat
docker run -v /var/run/docker.sock:/var/run/docker.sock
logshipper docker logs tomcat | pipestash ...
Caveat: logs are not rotated (but PR is on the way)
52. Remote access
If you own the host: SSH to host + nsenter
https://github.com/jpetazzo/nsenter
If you don't own the host: SSH in the container
https://github.com/phusion/baseimage-docker
More on that topic (“do I need SSHD in containers?”):
http://blog.docker.com/2014/06/why-you-dont-need-to-run-sshd-in-docker/
In the future:
- run separate SSH container
- log into that
- “hop” onto the target container
53. Docker
in production
Containers, containers everywhere!
Not an actual book (yet)
Thank you!
Questions?
http://www.docker.com/
@docker
@jpetazzo
Come talk about Docker tomorrow:
- 10:40am: office hours (expo hall table A)
- evening: meet-up at New Relic