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D105 [clear filter]
Friday, January 25

9:30am CET

Replacing Docker with Podman
We have introduced the command line tool podman which can be used to replace the Docker Daemon in most use cases. This talk will demonstrate how you would replace Docker with podman and actually demonstrate podman doing these features. It will also demonstrate additional new features like management of pods, and better security features we have added to podman.

avatar for Dan Walsh

Dan Walsh

Senior Distinguished Engineer, Red Hat, Inc.
Daniel Walsh has worked in the computer security field for over 30 years.Dan is a Consulting Engineer at Red Hat. He joined Red Hat in August 2001.Dan leads the Red Hat Container Engineering team since August 2013, but hasbeen working on container tec

Friday January 25, 2019 9:30am - 10:20am CET

10:30am CET

Writing kube controllers for everyone
With the introduction of Custom Resource Definition, as well as external API servers
everyone is now able to create its own resources and store them inside kubernetes
cluster. But that is only half of the work that needs to be done. During this
presentation Maciej, who co-authored both Job and CronJob controllers, and is
a frequent reviewer of controller and apiserver-related code will guide you
through basic set of steps that are necessary to write a simple controller.
As an example he will discuss his recent work around improving CronJob controller,
as well as introduce the 11 rules that needs to be fulfilled when writing
a good controller.

avatar for Maciej Szulik

Maciej Szulik

Senior Principal Software Engineer, Red Hat
Maciej is a passionate developer with almost 2 decades of experience in many languages. Currently he's working on OpenShift and Kubernetes for Red Hat. Whereas at night he is hacking on side projects with python. In his spare time he enjoys reading a good book or taking photos.

Friday January 25, 2019 10:30am - 10:55am CET

11:00am CET

Anti-patterns for Kubernetes Operators
Operators are a Kubernetes native way to install, upgrade, and maintain applications running on the platform. The concept of an operator seems simple: write some code that runs separately and takes care of my application for me. But when the OpenShift engineering team transformed our product to operate all of our infrastructure applications, the “what not to do’s” surfaced. We’ll walk through some of the biggest lessons the team learned during the development of these 40+ operators that will manage OpenShift Container Platform in the future.

avatar for Jessica Forrester

Jessica Forrester

Senior Principal Software Engineer, Red Hat
Jessica is a senior technical leader within the OpenShift Container Platform group at Red Hat. She is focused on the developer and administrative experiences being built around Kubernetes, including platform observability. She has been a software engineer for over 10 years, with 5... Read More →

Friday January 25, 2019 11:00am - 11:25am CET

11:30am CET

Ansible and buildah will rock your containers
Ansible is so awesome, that you can use it to perform so many different tasks. In our case, it would be building a container image. We will create an Ansible playbook and utilize buildah to do that. Buildah is a simple tool which creates container images — no daemons will be involved: only Ansible, buildah and runc. Interested? Come and learn more about a different way to create container images.

Expected audience is DevOps engineers who deploy containerized applications to production. I expect that Ansible users will be interested in this.

Nowadays most of the industry is using dockerfiles to create container images. This presentation provides an alternative to this solution when users can use the tools they already know and use, Ansible, to create container images.

Slides: https://tomastomecek.github.io/speaks/2019-devconf-ansible-buildah-will-rock-your-containers/

avatar for Tomas Tomecek

Tomas Tomecek

Principal Software Engineer, Red Hat
packit, containers, automation, and having all the fun

Friday January 25, 2019 11:30am - 11:55am CET

12:00pm CET

Rootless containers
In this talk we will discuss how to build and run containers without root privileges. As part of the discussion, we will introduce new programs like fuse-overlayfs and slirp4netns and explain how it is possible to do this using user namespaces. fuse-overlayfs allows to use the same storage model as "root" containers and use layered images. slirp4netns emulates a TCP/IP stack in userland and allows to use a network namespace from a container and let it access the outside world (with some limitations).

We will also introduce Usernetes, and how to run Kubernetes in an unprivileged user namespace

avatar for Giuseppe Scrivano

Giuseppe Scrivano

Senior Principal Software Engineer, Red Hat
Working on containers, specifically on tools like Podman, Buildah, CRI-O.
avatar for Akihiro Suda

Akihiro Suda

Software Engineer, NTT Corporation
Akihiro Suda is a software engineer at NTT Corporation, a Japan-based telecommunication company. He has been a maintainer of several opensource container software such as Moby, BuildKit, containerd, runc, and Lima. He has previously talked at several FLOSS conferences such as KubeCon... Read More →

Friday January 25, 2019 12:00pm - 12:50pm CET

1:00pm CET

Free https certificates on OpenShift
The session will start by live demo of installing openshift-acme, letting it provision free certificates from Let's Encrypt and enabling https for application Routes. It will be followed by explaining why it doesn't need customized Router and how it all works using just existing OpenShift API objects.



Friday January 25, 2019 1:00pm - 1:25pm CET

1:30pm CET

CRI-O development: behind the scenes
CRI-O is a new Kubernetes runtime for running containers in a cluster. It aims at replacing Docker
and it's set to be the default runtime when running OpenShift. How is this new runtime being developed? How is it making
sure that nothing breaks with each release? How is stability maintained during the project development?
In this talk, Antonio goes through the development behind the CRI-O project and he will walk through his team's experience over the last 2 years of developing this new runtime. He'll cover the flow of every feature, bug, and test, how the team deals with testing and its infrastructure, how CRI-O is helping the Kubernetes project by helping fixing issues that arise during CRI-O development and future improvements already planned to make CRI-O always ready for Kubernetes.

avatar for Antonio Murdaca

Antonio Murdaca

Principal Software Engineer, Red Hat, Inc.
Principal Engineer at Red Hat, doing Edge stuff

Friday January 25, 2019 1:30pm - 1:55pm CET

2:00pm CET

KubeVirt building blocks
Kubernetes gives you the building blocks from which you can build almost everything. This is talk explains the building blocks used by KubeVirt to provide the functionality of running virtual machine workloads in the Kubernetes cluster. It might sound complex but, it is not. After this talk you will have the basic knowledge of Kubernetes extendibility you can use in your own projects.


Friday January 25, 2019 2:00pm - 2:50pm CET

3:00pm CET

Container Security: So Many Options, Use Them All!
Linux Containers have become a new standard in the rapidly changing software industry. The convenience in packaging and runtime isolation that containers provide have security consequences that are often overlooked. Join us to gain an understanding of the challenges and best practices associated with developing and deploying containers in a secure manner using Open Source container technologies such as cri-o, buildah, podman, and skopeo.

avatar for Matt Heon

Matt Heon

Red Hat
Software Engineer on Red Hat's container team
avatar for Sally O’Malley

Sally O’Malley

Senior Software Engineer, Red Hat
Sally Ann O'Malley is a software engineer at Red Hat.  She has worked on various teams within OpenShift over the past 6 years. Currently, she is with the Emerging Technologies group within Red Hat.

Friday January 25, 2019 3:00pm - 3:50pm CET

4:00pm CET

CI for OpenShift: Prow, ci-operator and the future
A lot was going on in the world of CI for OpenShift last year. The transition from Jenkins to Prow to accommodate the distributed and high-cadence development is pretty much done. The `ci-operator` tool brought component developers an ability to declaratively describe their tests and how their component fits into the distribution. We have tooling to generate a set of Prow jobs to execute all available tests for a component before or after merges, from unit tests to end-to-end tests performed over ephemeral clusters. My talk will describe current CI landscape for OpenShift and walk through the individual parts, pointing out what value do they offer to development teams. I will also talk about our plans for the future.

avatar for Petr Muller

Petr Muller

Principal Software Engineer, Red Hat
I am a member of the Test Platform team of the OpenShift organization in Red Hat. We develop, maintain and operate CI/CD and development process automation tools and services for OpenShift.

Friday January 25, 2019 4:00pm - 4:50pm CET

5:00pm CET

Video Streaming and Processing in a Service Mesh
We'll share our experience with running a completely open source based video streaming and processing solution on a service mesh enabled container platform.
The main tools we use are Docker, Kubernetes, Istio and FFmpeg.
We'll look at the challenges and the advantages of the proposed solution, as well as some practical use cases. A demo session is envisioned as part of the presentation.
The attendees will learn about our experience in designing and operating the video processing solution as a lab experiment and the potential of running this in production.

avatar for Nikolay Nikolaev

Nikolay Nikolaev

Senior Staff Engineer, Juniper Networks
Nikolay Nikolaev is a Technical Lead in the Office of the CTO at Juniper Networks. where he leads a team dealing with the cloud-native aspects of 5G Network Slicing implementation. For almost 20 years, he has been implementing networking software ranging from hardware boxes to powerful... Read More →

Friday January 25, 2019 5:00pm - 5:50pm CET
Saturday, January 26

9:00am CET

Do our development tools need a refresh?
Recently, the co-presenters have used surveys and direct interviews to collect people’s work methods and habits while maintaining upstream software, RPM packages, modules and container images for Fedora and Red Hat. Unsurprisingly, despite a roughly unified set of tools, people have very different methods for their day to day tasks.

During this talk we will present the results of our research, including the wide-variety of tools, processes, and mechanisms we found. Our focus has been on collecting information on the current state and ideas for improvement. As a result, we will not be presenting solutions but are very interested in your experience and ideas for improvement.

Please come to the talk and share your ideas!

avatar for Tomas Tomecek

Tomas Tomecek

Principal Software Engineer, Red Hat
packit, containers, automation, and having all the fun
avatar for Langdon White

Langdon White

Clinical Assistant Professor, Boston University
Langdon White is a Clinical Assistant Professor and the Spark! Technical Director at Boston University. In these roles, he helps to provide industry-affiliated experiential learning to students and teaches with the goal of making computing and data sciences more accessible. White... Read More →

Saturday January 26, 2019 9:00am - 9:50am CET

10:00am CET

standardize complex IT with ansible i.e. SAP HANA
This session describes how to design, build and automate IT environments with ansible roles following ITIL principles. It will be demonstrated how ansible can be used to setup a dev,QA and prod environment with SAP HANA as an example application. You will learn some best practises how to design your ansible roles to properly modularize your IT.

avatar for Thomas Bludau

Thomas Bludau

System Engineer, SVA System Vertrieb Alexander GmbH
avatar for Andreas Stolzenberger

Andreas Stolzenberger

Technical Partner Enablement Manager, Red Hat

Saturday January 26, 2019 10:00am - 10:50am CET

11:00am CET

Don't Move That Fence Til You Know Why It's There
subtitle: The G.K. Chesterton Approach to Software Development

The early-20th century author G.K. Chesterton wrote one of the most insightful things I've ever read about politics, which also happens to apply perfectly to software development. The spirit of it is: changing things is fine, but understand what you're changing before you do it. I will present the full quotation, then dig into how it applies to software development, and some simple tools and techniques you can use to apply this in real life.

avatar for Adam Williamson

Adam Williamson

Fedora QA engineer, Red Hat
Fedora QA engineer

Saturday January 26, 2019 11:00am - 11:25am CET

11:30am CET

Agile documentation: A first class citizen
Documentation is a first class citizen that is often ignored in an agile team. Docs becomes an afterthought, further down the waterfall after dev complete, yet still thought of as part of the W-Agile (Waterfall) team. Learn how we changed that perception, promoted documentation to be inclusive within the sprint process and removed the impediment to producing quality documentation as a releasable increment every sprint.

avatar for Paul Wright

Paul Wright

Tech Writer, www.redhat.com
finp on github, writing about a microservish world

Saturday January 26, 2019 11:30am - 12:20pm CET

12:30pm CET

Going Modular: Teaching Old Docs New Tricks
Are your project docs ready for quick consumption in the world of containerized, embedded, and other specialized software deployments? Can docs contributors keep up with the demand for new docs and maintenance at the same time? In this talk, Robert Kratky will describe how to tackle this problem: re-purposing the existing body of documentation into modular units that can be combined into user story-based content. Attendees can expect a presentation and discussion of ways to modernize existing documentation and adapt it for new expectations.

Saturday January 26, 2019 12:30pm - 1:20pm CET

1:30pm CET

What keeps container maintainers awake
While maintaining containers in OS distribution like Fedora might seem similar to maintaining RPM spec files, it brings totally different set of challenges.

Linux containers are by design static, so it might need a bit of invention to make the container images flexible enough for different users and various use cases. Another issue comes with rebuilds, that are needed every-time some security fix affects the container, so the testing needs to be fully automated.

We've been facing those and other challenges for few years already during development of downstream container images (http://github.com/sclorg/), and this talk will introduce some innovative concepts and automation tips that have been proofed to work over time.

avatar for Honza Horak

Honza Horak

Red Hat
Working for Red Hat, I'm trying to spread the open-source idea and improve the experience of Fedora and RHEL users, while databases have been my primary interest for some time. Beyond IT world, I love sports and traveling.

Petr Kubat

Red Hat

Saturday January 26, 2019 1:30pm - 1:55pm CET

2:00pm CET

Take The Scare Out of Using Fedora Rawhide
Every developer's dream is to have the latest and greatest software. In Fedora, that means using Fedora rawhide, but it comes with the caveat of instability. Since Fedora rawhide is an untested version of Fedora, it is expected to have bugs. If we can attract more people to use Fedora rawhide, that means more testing. This provides an opportunity to fix issues at an early stage, which inturn, improves the overall quality of Fedora. This talk focuses on using Ansible to automate your workstation setup, so that you can be on rawhide and be able to start anew within no time in the event an update goes awry. The goal of this talk is to get more people using rawhide. We'll go over automating your workstation setup using Ansible, trying Fedora rawhide, testing it, and reporting any issues.

avatar for Mohan Boddu

Mohan Boddu

Release Engineer for Fedora, Red Hat
Release Engineer for Fedora

mboddu otp

Saturday January 26, 2019 2:00pm - 2:25pm CET

3:00pm CET

Leveraging Modularity for Real World Development
Fedora Modularity is a packaging technique that allows the distribution to make multiple versions of software available for users to select. Over the last couple years, the project team has done a lot of marketing around the promise of project. However, now that the technology is in production, we can present examples of real world use.

During this talk, the presenter will show how an application can rely on sticky versions of the development stack despite distribution updates. The presenter will also demonstrate how, using containers, the application can be tested against multiple combinations of multiple versions of the development stack with minimal configuration changes.

Come see Fedora Modularity in action!

avatar for Langdon White

Langdon White

Clinical Assistant Professor, Boston University
Langdon White is a Clinical Assistant Professor and the Spark! Technical Director at Boston University. In these roles, he helps to provide industry-affiliated experiential learning to students and teaches with the goal of making computing and data sciences more accessible. White... Read More →

Saturday January 26, 2019 3:00pm - 3:25pm CET

3:30pm CET

Getting Started in Fedora QA
It can seem like a daunting task to get started testing Fedora in a helpful way; the people involved can feel so far away over IRC, the meetings too official for a beginner to participate in, and if you do participate, why would you be taken seriously? How would you know what to test, and how to test it? And if you tested something, who would want to know your test results and where would you post them? This talk aims to answer these questions and more and present the ins-and-outs of Fedora testing to beginners and seasoned developers alike. The ideal outcome of this talk is to introduce more users to Fedora testing and the resources and people that can make testing a worthwhile challenge. Participants are asked to bring their computers to follow along with the talk and have a FAS ID.


Geoffrey Marr

Quality Engineer, Red Hat

Saturday January 26, 2019 3:30pm - 3:55pm CET

4:00pm CET

Container workflows for data science and ML
This talk will introduce the workflows and concerns of data scientists and machine learning engineers and show that OpenShift is a powerhouse for intelligent applications.

We’ll show how community projects like radanalytics.io support the entire intelligent application development lifecycle. You’ll learn about data science workflows and their deep similarities to devops workflows. You’ll see how well scale-out data processing frameworks like Apache Spark work in the cloud.

Operators will learn how OpenShift can support data science and ML workflows. Application developers will learn how OpenShift can enable intelligent applications and cross-functional collaboration. Data scientists will leave with concrete suggestions for how to use open-source tools to make their work more productive.

avatar for William Benton

William Benton

Manager, Software Engineering and Sr. Principal Engineer, Red Hat, Inc
William Benton leads a team of data scientists and engineers at Red Hat, where he has applied machine learning to problems ranging from forecasting cloud infrastructure costs to designing better cycling workouts. His current focus is investigating the best ways to build and deploy... Read More →

Saturday January 26, 2019 4:00pm - 4:25pm CET

5:00pm CET

Learning "Learning to Rank"
Excellent recall is insufficient for useful search; search engines also need to identify the most relevant results in a sea of matches. Learning to Rank algorithms aim to capture the relative utility of search results so as to return useful suggestions quickly and efficiently.
In this introductory talk Sophie will explain some Learning to Rank methods, from standard linear regression, to gradient-boosted decision trees, and apply them to a real search engine. She will compare the methods and discuss the pitfalls she ran into when training a Learning to Rank model.
You will walk away from this talk with an understanding of the problems involved in relevant search, an overview of key techniques, and the knowledge needed to implement Learning to Rank algorithms on your own data set.

avatar for Sophie Watson

Sophie Watson

Senior Data Scientist, Red Hat
Sophie Watson is a data scientist at Red Hat, where she helps customers use machine learning to solve business problems in the hybrid cloud. She is a frequent public speaker on topics including machine learning workflows on Kubernetes, recommendation engines, and machine learning... Read More →

Saturday January 26, 2019 5:00pm - 5:25pm CET

5:30pm CET

Lightning Talks

Katerina Prochazkova

Manager, Red Hat
Customer service, support experience, open culture, diversity and inclusion, traveling and anything else really :)

Saturday January 26, 2019 5:30pm - 5:55pm CET
Sunday, January 27

9:00am CET

Machine Learning Practical Example
Now that Machine Learning has moved from the esoteric realm and into the world of daily application, what steps are required to prepare existing data to become ML training data sets? What constitutes a good use case? What is the actual cost in effort and time to prepare the data? How much data is required, and what accessible techniques can be applied to achieve that minimum? This session explores the practical steps for non-experts to prepare actual issue tracking data for consumption by ML training algorithms, leveraging available community and Red Hat resources.

Here is a link to the associated video https://www.youtube.com/watch?v=T1sYLbuHBZU

avatar for Prasanth Anbalagan

Prasanth Anbalagan

Senior Software Engineer (QE and Analysis), Red Hat, RH - Raleigh - Red Hat Tower
Dr. Prasanth Anbalagan is a Senior Software Engineer (QE and Analysis) on the Artificial Intelligence Center of Excellence Team at Red Hat. As a member of AI team at Red Hat, Prasanth focuses on development of ML services and tools as part of an Analytics, Machine Learning and AI... Read More →

Mark Yarborough

Manager, Red Hat

Sunday January 27, 2019 9:00am - 9:25am CET

9:30am CET

Using Machine Learning to find Linux bugs
I’d like to show you how to find bugs in Linux systems using machine learning, when paired with the totally seemingly useless and annoying false positives that come out of your integration tests.

We’ve all been frustrated unreproducible bugs in Linux … And also by stupid test-flakes that show up as failures in integration tests even though nothing related has changed. I want to prove that both of these are the same thing.

Lets take a look at how the Cockpit project trains bots to correlate these flakes into unsupervised clusters. and automatically make use of the data, identifying real bugs, or simply retriggering tests.

We’ll dive into details about Normalized Compression Distance, Unsupervised Clustering, TF-IDF and many other simple techniques used to zero in on the bugs.

avatar for Stef Walter

Stef Walter

Hacker, manager, and CI freak., Red Hat
Stef is an avid open source hacker. He's contributed to over a hundred open source projects, and can be found preaching about continuous integration and working on the Cockpit Linux admin interface. He's a usability freak. Stef lives in Germany, and works at Red Hat.

Sunday January 27, 2019 9:30am - 10:20am CET

10:30am CET

AIOps: Anomaly detection with Prometheus
As IT operations become more agile and complex, at the same time the need to enhance operational efficiency and intelligence grows. Monitoring applications and kubernetes clusters with Prometheus has become quite common. Yet identifying relevant metrics and thresholds for your setup is getting harder.

In this talk, Marcel will show the tooling used to collect and store metrics gathered by Prometheus for the long term. Then analyze those on a large scale using Spark. This includes extracting trends and seasonality but also forecasting of expected values for a given metric. Finally, he will integrate the predicted metrics back into the Prometheus monitoring and alerting stack to enable dynamic thresholding and anomaly detection.

avatar for Marcel Hild

Marcel Hild

Señor Manager, Red Hat
Marcel Hild has 25+ years of experience in open source development and the IT industry. He co-founded a Linux consulting company, worked as a freelance developer, a Solution Architect for Red Hat, and a core Developer for ManageIQ, a Hybrid Cloud Management tool. Now he researches... Read More →

Sunday January 27, 2019 10:30am - 11:20am CET

11:30am CET

Let's play with Brno Data
Have you heard of the term Open Data? Did you know that Brno provides Open Data? Do you know how to access them, how to handle them? How to properly visualize data and draw conclusions? And actually... what is the use of it? Let's talk Open Data!

The aim of the session is to use Brno Open Data to give concise view to the topics of Open Data and Data Visualization and demonstrate in a popular form how proper visualization and catching story-telling can attract even people of completely unrelated backgrounds.

The workshop `Data Science Workout with Open Data` is connected to this talk and shows basic data wrangling and introduces participants to the basic data-related work by using Open Data.

Presentation (preview only, complete site will be released after the talk) at: https://devconf-brno-data.netlify.com/

avatar for Marek Čermák

Marek Čermák

Software Engineer, RH - Brno - Tech Park Brno - B
Among other things, Marek is a data engineer, cloud developer, an open-source enthusiast and a Jupyter hacker. He likes new technologies and the challenges they bring along. He also likes to write and/or talk about the solutions. Marek is currently working as a scientific software... Read More →

Sunday January 27, 2019 11:30am - 12:20pm CET

12:30pm CET

Kubeflow: ML on OpenShift
Kubeflow is an open source project that has quickly emerged as the de-facto machine learning toolkit for Kubernetes. Kubeflow aims to provide stability, composability, and portability for machine learning by leveraging Kubernetes and other ecosystem projects to implement the infrastructure required to deliver a comprehensive ML platform for data scientists and DevOps engineers alike. This talk will explore the origins of the project, its core architecture, and integration with complementary projects such as JupyterHub, Pachyderm, and SeldonIO. We will examine the user experience, from deployment to notebooks. The presentation will also discuss its relevance to OpenShift and how the emerging popularity of the Operator SDK can expand the capabilities of Kubeflow.

avatar for Peter MacKinnon

Peter MacKinnon

Principal Software Engineer, Red Hat Inc.
Pete MacKinnon is a Principal Software Engineer in the AI Center of Excellence at Red Hat. He is actively involved in the Kubeflow and Open Data Hub open source projects. He works closely with Red Hat customers and partners to successfully bring their machine learning and analytics... Read More →

Sunday January 27, 2019 12:30pm - 1:20pm CET

1:30pm CET

Understanding Neural Networks (Somewhat)
Neural Networks are the first technique everyone thinks about when she considers applying machine learning. But understanding of NNs is usually lacking and the availability of high-level packages does help with this.
Understanding NNs at least somewhat is necessarily to effectively using them. The type of NN used decides what problems can be solved but what works best for a given problem? How to train the network?
This talk gives an introduction to the commonly used NNs, the math behind them, and how to best use them.

avatar for Sanjay Arora

Sanjay Arora

Data Scientist
Data scientist at Red Hat
avatar for Ulrich Drepper

Ulrich Drepper

System Research & Data Science, CTO Office, Red Hat
Data Scientist, CTO Office

Sunday January 27, 2019 1:30pm - 3:20pm CET

3:30pm CET

Wrap up and Win Win Win!
Wrap up the conference!

Come to win some great prizes!

Find out who won the badge flair contest!

avatar for Mikey Ariel

Mikey Ariel

Senior Technical Writer, Red Hat
Mikey is a senior technical writer working on OpenStack Platform at Red Hat. She is also on the global core team of Write the Docs, Django Girls alumni, and documentation coach for open-source projects. Mikey regularly presents and runs documentations sprints at open-source confe... Read More →
avatar for Brian Exelbierd

Brian Exelbierd

Community Business Owner, Red Hat
Brian “bex” Exelbierd enjoys a good beer, a nice coffee, and a rousing conversation about taxation. Born in the USA, he now lives with his partner and daughter in Brno, Czech Republic. His focus is on his family, walks for artisinal bread, and reading long form articles. By night... Read More →
avatar for Radek Vokal

Radek Vokal

Senior Manager, Product Management, Red Hat

Sunday January 27, 2019 3:30pm - 4:00pm CET

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