Meetup - Red Hat - Techtalks Copenhagen
What are containers, how do they work. and some details about RHEL Atomic
http://www.meetup.com/Red-Hat-Tech-Talks-DK/
LXC (Linux Containers) allows multiple isolated Linux systems called containers to run on a single Linux host. Containers offer lightweight virtualization by running applications in isolated processes on the host operating system without needing a hypervisor. This provides better performance than virtual machines and allows containers to be deployed and migrated more easily. While still a newer technology, LXC adoption is growing rapidly due to its benefits for server isolation, workload management, and portability.
Linux Containers(LXC) allow running multiple isolated Linux instances (containers) on the same host.
Containers share the same kernel with anything else that is running on it, but can be constrained to only use a defined amount of resources such as CPU, memory or I/O.
A container is a way to isolate a group of processes from the others on a running Linux system.
LXC (Linux Containers) are lightweight virtual machines created using kernel-level virtualization rather than a hypervisor. The document discusses LXC, including that it provides operational system-level virtualization allowing multiple isolated systems to run on a single host. It also covers main LXC implementations like LXC, Docker, and OpenVZ which are written in C or Go and have stable codebases. Basic usage of LXC like creating, starting, and stopping containers is demonstrated.
This document discusses Linux containers (LXC), which provides operating system-level virtualization. It allows multiple isolated Linux systems to run on a single host. LXC offers advantages like being lightweight, providing comprehensive process and resource isolation, and allowing for rapid deployment. The document outlines basic LXC usage like creating, starting, and stopping containers. It also covers more advanced topics such as unprivileged containers, cloning and snapshots, networking configurations, and example applications for LXC.
presentation held at SUSE Linux Expert Forum December 2014
Linux container history and Linux namespaces
examples include:
* Move a VPN connection to its own namespace(p 25)
* User namespaces demo(p 28)
see collection of useful articles and advanced container usecases pp 29
The document describes the namespace attachment feature for LXC containers which allows processes to attach to the namespaces of other processes, providing de-isolation between containers and hosts. It specifies how namespace attachment works using the setns() system call and files in the /proc directory, and discusses integrating this feature into the LXC container by modifying its source code and libraries. Use cases where breaking isolation may be acceptable are also outlined.
This document discusses namespaces in Linux. Namespaces allow containers to have isolated resources like processes, networking, file systems, users and more. Containers share less than virtual machines but provide more isolation than regular processes. Namespaces use the clone system call to create an isolated view of various system resources for a container. Common namespaces include UTS for hostname, IPC for shared memory, PID for process IDs, network, mount and more. Tools like LXC, Docker and systemd-nspawn make it easy to create and manage containers using namespaces and cgroups.
K3s is a lightweight Kubernetes distribution that is highly available and optimized for resource usage, taking up less than 40MB. Service discovery in K3s allows processes and devices on the network to automatically detect each other using environment variables, DNS, or a Kubernetes service object which provides load balancing and sends traffic only to healthy backends while offering features like session affinity and label selectors.
Linux Container Technology inside Docker with RHEL7Etsuji Nakai
Linux Container Technology inside Docker with RHEL7 discusses Docker containers and how they utilize Linux container technologies like namespaces and control groups. It provides an overview of how Docker images work and how processes are isolated in containers using process and filesystem namespaces. It also describes how networks are isolated using network namespaces and bridged to the host system. Finally, it briefly introduces Kubernetes and how it can manage Docker containers across multiple nodes.
"One network to rule them all" - OpenStack Summit Austin 2016Phil Estes
Presentation at IBM Client Day by Kyle Mestery and Phil Estes, OpenStack Summit 2016 - Austin, Texas on April 26, 2016. "Open, Scalable and Integrated Networking for Containers and VMs" covering Project Kuryr, Docker's libnetwork, and Neutron & OVS and OVN network stacks
This document provides an overview of the Linux operating system, including its history and design principles. It describes key components of Linux such as the kernel, kernel modules, process management, scheduling, and synchronization techniques. The document also discusses Linux distributions and licensing. It provides details on the evolution of Linux kernels over time and the introduction of new features and capabilities with each version.
Introduction to Unix-like systems (Part I-IV)hildenjohannes
This document provides an overview of Unix-like operating systems, including their system structure, kernel subsystems, shells, file hierarchy and permissions. It defines a Unix-like system as one that behaves similarly to Unix, and lists several examples including various Linux distributions, BSD, Solaris and Mac OS X. The key components discussed are the kernel, process management, memory management, filesystem, network stack and shells. Filesystem topics covered include paths, file types, directories and common utilities.
Docker networking was previously handled by Docker Engine and libcontainer, but is now managed by libnetwork, a standalone library. Libnetwork aims to modularize networking logic and provide a pluggable driver-based model. It defines components like networks, endpoints, and sandboxes and provides RESTful APIs. Common drivers include bridge and overlay drivers.
This document discusses several network overlay options in Docker: Weave, Flannel, and Libnetwork. Weave creates a custom bridge and uses encapsulation to connect containers across hosts, but has low throughput due to packet processing in userspace. Flannel assigns each host a subnet and supports backends like VxLAN, with higher throughput than Weave by using the kernel driver. Libnetwork is integrated with Docker and supports custom drivers like Weave; it defines networks and services and allows containers to attach across hosts, with throughput close to Flannel due to using the VxLAN driver.
Linux is an open-source operating system based on the Unix model. It can run on a variety of hardware and has thousands of available programs. The document discusses the history and development of Linux from its origins in the 1960s through its creation by Linus Torvalds in 1991. It also covers key Linux concepts like kernels, processes, threads, file systems, and boot processes. Community links are provided for learning more about the Linux kernel, drivers, boot loader, and file systems.
Linux is an open-source operating system based on UNIX with a modular kernel. It uses processes, memory management and file systems similar to UNIX. The Linux kernel supports features like symmetric multiprocessing, virtual memory and loading of kernel modules. Popular Linux distributions package and distribute the Linux system along with utilities and applications.
The document provides an overview of the cgroup subsystem and namespace subsystem in Linux, which form the basis of Linux containers. It discusses how cgroups and namespaces enable lightweight virtualization of processes through isolation of resources and namespaces. It then covers specific aspects of cgroups like the memory, CPU, devices, and PIDs controllers. It also summarizes the key differences and improvements in the cgroup v2 implementation, such as having a single unified hierarchy and consistent controller interfaces.
This document provides an introduction to Linux basics. It defines what Linux is, describing its core components like the kernel, daemons, shell, and desktop environments. It explains the directory structure and file system, with everything treated as a file. It also outlines many common Linux commands, like ls, cd, chmod, and crontab, and provides explanations for how they work. Finally, it discusses concepts like piping, redirection, wildcards, foreground vs. background processes, and provides some additional Linux resources.
The document discusses setting up an NFS server in an LXC container on Ubuntu 16.04. It explains the steps to create the LXC container, install the NFS server, export a directory, and apply the configuration. It then provides an overview of persistent volumes and persistent volume claims in Kubernetes, describing how they decouple storage and pod lifecycles by connecting persistent volumes to pods through claims.
A brief introduction to Linux Containers and explanation of the available Minimalist OSes targeted to run containers.
* http://www.meetup.com/Arapiraca-Dev-Meetup/events/222709815/
* http://www.meetup.com/maceio-dev-meetup/events/222550701/
* https://www.youtube.com/watch?v=i4sO-W7ack8
This document provides an overview of the basics of Linux, including its key components and common commands. It describes Linux as an open source, Unix-based operating system developed by the community. The core component is the Linux kernel, which uses a monolithic microkernel design. Common shells for the user interface include BASH, SH, and KSH. Basic commands covered include ls, cd, pwd, echo, cat, cp, mv, mkdir, rm, and tar for archiving and compressing files. The document also discusses file permissions and ownership, represented using octal notation, and crontab for scheduling tasks.
This document provides an overview of a seminar presented on Red Hat Linux and NIS servers. It discusses key topics like the history and features of Linux, an overview of the Linux kernel and file system, Linux shells, users and permissions, RAID and LVM concepts, and configurations for common Linux server types including NIS, NFS, DNS, DHCP, FTP, SSH, Telnet, SMTP, Samba, and Apache web servers. Screenshots are also included to demonstrate aspects of the configurations.
The document provides an overview of the Linux operating system, including its history, design principles, components, and key features. It discusses the kernel, processes and threads, scheduling, memory management, file systems, I/O, inter-process communication, networking, and security in Linux. The document is intended to introduce the fundamental concepts and architecture of the Linux system.
Writing the Container Network Interface(CNI) plugin in golangHungWei Chiu
An introduction to Container Network Interface (CNI), including what problems it want solve and how it works.
Also contains a example about how to write a simple CNI plugin with golang
Linux was first developed in 1991 by Linus Torvalds as a free operating system kernel. It was inspired by the proprietary Unix operating system. All CCMST servers now run Linux. Linux is a multi-user, multi-tasking operating system with features like a command line interface, graphical desktop environments, and system administration tools. It allows for time-sharing where multiple users can access a system simultaneously through a division of processing time.
The document provides an overview of Linux kernel development including:
- Linux kernel versions follow a naming convention and source code can be found at kernel.org
- Kernel source code is installed by extracting tar files and applying patches
- The kernel directory has a hierarchy and is configured, built, and installed
- Kernel modules are installed separately from the kernel
- The kernel lacks features of userspace like memory protection and floating point support due to its low-level nature and process management
Isolating an applications using LXC – Linux ContainersVenkat Raman
configuring and running an application inside the container. Dockers are built on top of LXC. In Dockers case, its advantage is that its open-source engine can be used to pack, ship, and run any application as a lightweight, portable, self-sufficient LXC container that runs virtually anywhere. It’s a packaging system for applications.
Docker provides a way to package applications into containers that can be run on any infrastructure. It uses namespaces and cgroups to isolate processes and share resources efficiently. The key components are images which are read-only templates for building containers, registries for storing images, and containers which combine an image with writable layers and metadata to run applications anywhere. Docker uses a client-server architecture with containers built from images and managed through commands to the Docker daemon which handles building, running, and distributing containers.
Linux Container Technology inside Docker with RHEL7Etsuji Nakai
Linux Container Technology inside Docker with RHEL7 discusses Docker containers and how they utilize Linux container technologies like namespaces and control groups. It provides an overview of how Docker images work and how processes are isolated in containers using process and filesystem namespaces. It also describes how networks are isolated using network namespaces and bridged to the host system. Finally, it briefly introduces Kubernetes and how it can manage Docker containers across multiple nodes.
"One network to rule them all" - OpenStack Summit Austin 2016Phil Estes
Presentation at IBM Client Day by Kyle Mestery and Phil Estes, OpenStack Summit 2016 - Austin, Texas on April 26, 2016. "Open, Scalable and Integrated Networking for Containers and VMs" covering Project Kuryr, Docker's libnetwork, and Neutron & OVS and OVN network stacks
This document provides an overview of the Linux operating system, including its history and design principles. It describes key components of Linux such as the kernel, kernel modules, process management, scheduling, and synchronization techniques. The document also discusses Linux distributions and licensing. It provides details on the evolution of Linux kernels over time and the introduction of new features and capabilities with each version.
Introduction to Unix-like systems (Part I-IV)hildenjohannes
This document provides an overview of Unix-like operating systems, including their system structure, kernel subsystems, shells, file hierarchy and permissions. It defines a Unix-like system as one that behaves similarly to Unix, and lists several examples including various Linux distributions, BSD, Solaris and Mac OS X. The key components discussed are the kernel, process management, memory management, filesystem, network stack and shells. Filesystem topics covered include paths, file types, directories and common utilities.
Docker networking was previously handled by Docker Engine and libcontainer, but is now managed by libnetwork, a standalone library. Libnetwork aims to modularize networking logic and provide a pluggable driver-based model. It defines components like networks, endpoints, and sandboxes and provides RESTful APIs. Common drivers include bridge and overlay drivers.
This document discusses several network overlay options in Docker: Weave, Flannel, and Libnetwork. Weave creates a custom bridge and uses encapsulation to connect containers across hosts, but has low throughput due to packet processing in userspace. Flannel assigns each host a subnet and supports backends like VxLAN, with higher throughput than Weave by using the kernel driver. Libnetwork is integrated with Docker and supports custom drivers like Weave; it defines networks and services and allows containers to attach across hosts, with throughput close to Flannel due to using the VxLAN driver.
Linux is an open-source operating system based on the Unix model. It can run on a variety of hardware and has thousands of available programs. The document discusses the history and development of Linux from its origins in the 1960s through its creation by Linus Torvalds in 1991. It also covers key Linux concepts like kernels, processes, threads, file systems, and boot processes. Community links are provided for learning more about the Linux kernel, drivers, boot loader, and file systems.
Linux is an open-source operating system based on UNIX with a modular kernel. It uses processes, memory management and file systems similar to UNIX. The Linux kernel supports features like symmetric multiprocessing, virtual memory and loading of kernel modules. Popular Linux distributions package and distribute the Linux system along with utilities and applications.
The document provides an overview of the cgroup subsystem and namespace subsystem in Linux, which form the basis of Linux containers. It discusses how cgroups and namespaces enable lightweight virtualization of processes through isolation of resources and namespaces. It then covers specific aspects of cgroups like the memory, CPU, devices, and PIDs controllers. It also summarizes the key differences and improvements in the cgroup v2 implementation, such as having a single unified hierarchy and consistent controller interfaces.
This document provides an introduction to Linux basics. It defines what Linux is, describing its core components like the kernel, daemons, shell, and desktop environments. It explains the directory structure and file system, with everything treated as a file. It also outlines many common Linux commands, like ls, cd, chmod, and crontab, and provides explanations for how they work. Finally, it discusses concepts like piping, redirection, wildcards, foreground vs. background processes, and provides some additional Linux resources.
The document discusses setting up an NFS server in an LXC container on Ubuntu 16.04. It explains the steps to create the LXC container, install the NFS server, export a directory, and apply the configuration. It then provides an overview of persistent volumes and persistent volume claims in Kubernetes, describing how they decouple storage and pod lifecycles by connecting persistent volumes to pods through claims.
A brief introduction to Linux Containers and explanation of the available Minimalist OSes targeted to run containers.
* http://www.meetup.com/Arapiraca-Dev-Meetup/events/222709815/
* http://www.meetup.com/maceio-dev-meetup/events/222550701/
* https://www.youtube.com/watch?v=i4sO-W7ack8
This document provides an overview of the basics of Linux, including its key components and common commands. It describes Linux as an open source, Unix-based operating system developed by the community. The core component is the Linux kernel, which uses a monolithic microkernel design. Common shells for the user interface include BASH, SH, and KSH. Basic commands covered include ls, cd, pwd, echo, cat, cp, mv, mkdir, rm, and tar for archiving and compressing files. The document also discusses file permissions and ownership, represented using octal notation, and crontab for scheduling tasks.
This document provides an overview of a seminar presented on Red Hat Linux and NIS servers. It discusses key topics like the history and features of Linux, an overview of the Linux kernel and file system, Linux shells, users and permissions, RAID and LVM concepts, and configurations for common Linux server types including NIS, NFS, DNS, DHCP, FTP, SSH, Telnet, SMTP, Samba, and Apache web servers. Screenshots are also included to demonstrate aspects of the configurations.
The document provides an overview of the Linux operating system, including its history, design principles, components, and key features. It discusses the kernel, processes and threads, scheduling, memory management, file systems, I/O, inter-process communication, networking, and security in Linux. The document is intended to introduce the fundamental concepts and architecture of the Linux system.
Writing the Container Network Interface(CNI) plugin in golangHungWei Chiu
An introduction to Container Network Interface (CNI), including what problems it want solve and how it works.
Also contains a example about how to write a simple CNI plugin with golang
Linux was first developed in 1991 by Linus Torvalds as a free operating system kernel. It was inspired by the proprietary Unix operating system. All CCMST servers now run Linux. Linux is a multi-user, multi-tasking operating system with features like a command line interface, graphical desktop environments, and system administration tools. It allows for time-sharing where multiple users can access a system simultaneously through a division of processing time.
The document provides an overview of Linux kernel development including:
- Linux kernel versions follow a naming convention and source code can be found at kernel.org
- Kernel source code is installed by extracting tar files and applying patches
- The kernel directory has a hierarchy and is configured, built, and installed
- Kernel modules are installed separately from the kernel
- The kernel lacks features of userspace like memory protection and floating point support due to its low-level nature and process management
Isolating an applications using LXC – Linux ContainersVenkat Raman
configuring and running an application inside the container. Dockers are built on top of LXC. In Dockers case, its advantage is that its open-source engine can be used to pack, ship, and run any application as a lightweight, portable, self-sufficient LXC container that runs virtually anywhere. It’s a packaging system for applications.
Docker provides a way to package applications into containers that can be run on any infrastructure. It uses namespaces and cgroups to isolate processes and share resources efficiently. The key components are images which are read-only templates for building containers, registries for storing images, and containers which combine an image with writable layers and metadata to run applications anywhere. Docker uses a client-server architecture with containers built from images and managed through commands to the Docker daemon which handles building, running, and distributing containers.
Namespaces, Cgroups and systemd document discusses:
1. Namespaces and cgroups which provide isolation and resource management capabilities in Linux.
2. Systemd which is a system and service manager that aims to boot faster and improve dependencies between services.
3. Key components of systemd include unit files, systemctl, and tools to manage services, devices, mounts and other resources.
The document summarizes recent developments in the Linux 2.6 kernel series, including changes to the development model, source code management, new features like kobject events and inotify, and new system calls. It also discusses changes and improvements to filesystems, allocators, clustering, timers, namespaces, paravirtualization, and the introduction of ext4.
The document provides an overview of the history and design of the Linux operating system in 3 paragraphs:
Linux was first developed in 1991 by Linus Torvalds as a small kernel for compatibility with UNIX. It has since grown through collaboration over the internet to run on various hardware platforms while remaining free and open source. Early versions only supported 386 processors and basic functionality, while later versions added support for new hardware, file systems, and networking.
The core components of Linux include the kernel, system libraries, and system utilities. The kernel provides core system functions and resource management. Libraries and utilities are developed separately but work together to provide a full UNIX-compatible system. Device drivers, file systems, and network protocols can
The document provides an overview of the history and components of the Linux operating system. It discusses how Linux originated as a small kernel developed by Linus Torvalds in 1991 and has since evolved through collaboration. The key components of Linux include the Linux kernel, system libraries, system utilities, and kernel modules. Linux uses a multi-user, multi-tasking model and adheres to UNIX standards and design principles.
The document provides an overview of the history and design of the Linux operating system. It discusses key aspects of Linux including its kernel development over time, process management, scheduling, memory management, file systems, and interprocess communication. The core components of a Linux system including the kernel, system libraries, and system utilities are also summarized.
The document provides an overview of the history and components of the Linux operating system. It discusses how Linux originated as a small kernel developed by Linus Torvalds in 1991 and has since evolved through collaborations. The core components of Linux include the kernel, system libraries, system utilities, and kernel modules. It also describes key aspects of Linux such as process management, scheduling, memory management, and file systems.
امروزه مجازیسازی یکی از روشهای پرطرفدار برای پیادهسازی کارگزاران وب است. این فناوری موجب کاهش هزینههای تجارتهای کوچک میشود. مجازیسازی یکی از جنبههای مهم ارائه خدمات ابری است که حتی برای تجارتهای بزرگ نیز از جذابیت زیادی برخوردار است.
در این سخنرانی به امکاناتی همچون Control Groups و Containers که در نسخههای جدیدتر هسته سیستم عامل لینوکس پیادهسازی شده است میپردازیم. هرچند این امکانات مجازیسازی کامل را به ارمغان نمیآورند، اما بسیاری از مزایای آن را با سربار بسیار کم در سطح هسته فراهم میکنند. راه حلهایی همچون LXC و Docker بر اساس این امکانات توانستهاند به نتایج خوبی برسند که هم از لحاظ تجاری در خور توجه هستند و هم تبعات و کاربردهای امنیتی دارند.
Linux Container Brief for IEEE WG P2302Boden Russell
A brief into to Linux Containers presented to IEEE working group P2302 (InterCloud standards and portability). This deck covers:
- Definitions and motivations for containers
- Container technology stack
- Containers vs Hypervisor VMs
- Cgroups
- Namespaces
- Pivot root vs chroot
- Linux Container image basics
- Linux Container security topics
- Overview of Linux Container tooling functionality
- Thoughts on container portability and runtime configuration
- Container tooling in the industry
- Container gaps
- Sample use cases for traditional VMs
Overall, a bulk of this deck is covered in other material I have posted here. However there are a few new slides in this deck, most notability some thoughts on container portability and runtime config.
Linux is a free, open-source operating system based on UNIX with a modular kernel. It uses processes, threads, virtual memory, and files systems. Device drivers allow access to hardware via the block I/O system. Interprocess communication includes signals, pipes, shared memory, and semaphores. Security features authentication via PAM and access controls permissions via user and group IDs.
The document summarizes the architecture of the Linux operating system. It discusses the main components of Linux including the kernel, process management, memory management, file systems, device drivers, network stack, and architecture-dependent code. The kernel is at the core and acts as a resource manager. It uses a monolithic design. Process and memory management are handled via data structures like task_struct and buddy allocation. Virtual memory is implemented using page tables. File systems organize files in a hierarchy with inodes. Device drivers interface with hardware. The network stack follows a layered model. Architecture code is separated by subdirectory.
Linux containers (LXC) provide operating system-level virtualization using features of the Linux kernel such as cgroups, namespaces, and chroot. This allows for the creation of lightweight isolated environments called containers that share the kernel of the host system. Containers offer many advantages over traditional virtual machines such as near-native performance, flexibility, and lightweight resource usage. The document discusses the key building blocks and technologies that underpin LXC such as cgroups for resource control and namespaces for process isolation. It also covers the benefits of using LXC and how container images are realized on Linux.
The document summarizes the architecture of the Linux operating system. It discusses that Linux is divided into the kernel space and user space. The kernel is responsible for process management, memory management, file systems, device drivers, and the network stack. It also touches on architecture-dependent code and the components of the Linux system like the kernel, user applications, and system libraries.
The document provides an overview of the key components of the Linux operating system, including:
1) The Linux kernel, which acts as a resource manager for processes, memory, and hardware devices.
2) Process and memory management systems that control how processes are allocated and memory is allocated and freed.
3) The file system which organizes how files are stored and accessed.
4) Device drivers that allow the operating system to interface with hardware.
5) The network stack which handles network protocols and connections.
6) Architecture-dependent code that provides hardware-specific implementations of core functions.
This document discusses the evolution of Linux container virtualization, including technologies like LXC, Docker, CoreOS, and Kubernetes. It provides an overview of key concepts in virtualization like namespaces, cgroups, AppArmor, SELinux, and seccomp. It also summarizes features of Linux container engines like LXC, and container platforms like Docker, CoreOS, and the Kubernetes container cluster management system.
Visualpath is the best Kubernetes Training Institute in Hyderabad. We are providing Online & Classroom Training classes by real-time faculty with real time Projects. You will get the best course at an affordable cost. Call on - +91-9989971070.
Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications. It was originally developed by Google based on years of experience running production workloads at scale. Kubernetes groups containers into logical units called pods and handles tasks like scheduling, health checking, scaling and rollbacks. The main components include a master node that manages the cluster and worker nodes that run application containers scheduled by the master.
This document provides an overview of the Linux operating system, including its history, design principles, kernel components, process management, scheduling, and synchronization techniques. It describes how Linux originated from UNIX and is now a widely used open source operating system. Key topics covered include Linux kernel modules, process identity and context, the Completely Fair Scheduler algorithm, and how the kernel protects access to shared resources using nonpreemptible code and interrupt disabling.
Build and manage private and hybrid cloudSyed Shaaf
1) The document discusses private, public, and hybrid cloud deployment models and how a hybrid cloud is a combination of private and public clouds.
2) It explains how a typical workload in a private cloud would include operating systems, application containers, databases, applications, and network storage supported by infrastructure like hardware, virtualization, and platforms.
3) Cloud management platforms can be used to automate the provisioning, management, and orchestration of workloads across private and hybrid clouds for increased efficiency and control.
Getting to know the Grid - Goto Aarhus 2013Syed Shaaf
You can start an application with a local cache, but then you need to scale, make it distributed, so now you have a distributed cache, need an in-memory key/value NoSQL datastore, you got it! Want to use map/reduce or maybe distribute executions on this grid. This is where you would start wondering about high availability, evictions, grid network etc.
In this talk I will highlight the uses cases for the JBoss Datagrid which is based on the opensource project infinispan. I will go through some of the internals of caching and how you can effectively create an application that can scale, and once it does how you can leverage the capabilities of the gird.
This document discusses Red Hat middleware and OpenShift platform-as-a-service (PaaS). It summarizes Red Hat's middleware offerings including JBoss, which provides a standard modern middleware platform for cloud, hybrid and on-premises deployments. It also discusses how OpenShift can be used as a PaaS to deploy and manage applications in a flexible and scalable manner. The document provides an overview of how Red Hat's middleware products address challenges around application development and integration, data management, business rules and processes, and more.
OpenShift and next generation application developmentSyed Shaaf
OpenShift is a Platform as a Service (PaaS) cloud application platform built on Red Hat technologies that allows developers to easily deploy and scale applications in a cloud environment. It provides developers flexibility to work how they want through options like a web console, command line tools, and IDE integrations while choosing from various programming languages, frameworks, and middleware. OpenShift handles automated application builds, testing, deployment and scaling across its infrastructure which includes nodes managed by brokers that run on instances of Red Hat Enterprise Linux.
The document discusses Red Hat Enterprise Linux and its growing adoption rates. It notes that 84% of organizations plan to continue or increase their use of Linux in the coming year. Many organizations are migrating applications and workloads from UNIX and Windows to Linux due to benefits like lower costs, increased flexibility and hardware choices, and community driven innovation. Red Hat Enterprise Linux provides stability and a platform for mission critical, big data, virtualization and cloud computing workloads.
The document is a presentation about Red Hat Enterprise Virtualization (RHEV). It provides an overview of RHEV features such as live migration, storage live migration, high availability, and self-service portal. It discusses the RHEV hypervisor and KVM, including scalability and support for latest silicon virtualization technology. The presentation also covers RHEV integration, security using SELinux, cost advantages over competitors, and examples of RHEV uses such as UNIX to Linux migration, mission critical applications, and test/dev environments.
This document discusses Red Hat Enterprise Virtualization (RHEV) 3.1. Key features of RHEV Manager include high availability, live migration, load balancing, templates, and centralized storage and network management. The RHEV hypervisor supports up to 160 virtual CPUs and 2TB of RAM per guest. RHEV 3.1 focuses on integration, a new Python SDK, removing the .NET admin portal, supporting new platforms like OpenJDK, and improvements to networking, storage, and the user interface.
Red Hat Enterprise Linux and NFS by syedmshaafSyed Shaaf
Red Hat provides mission-critical software and services using an open source model. This includes operating systems, virtualization, storage, and middleware. Red Hat develops products using a participate, integrate, and stabilize process involving upstream open source projects and communities. Red Hat Enterprise Linux works well with NFS for storage, with NFS version 4 improving performance and NFS version 4.1 introducing parallel access for improved scalability.
This document discusses JBoss Enterprise Application Platform (EAP) 6 and its capabilities for easing into cloud deployments. EAP 6 implements the full Java EE 6 specification and is designed with a cloud-ready architecture featuring high automation, flexible management, and dynamic resource usage. It provides fast performance, modular design, and centralized configuration. EAP 6 supports developer productivity with Maven integration and sample applications.
Technical update KVM and Red Hat Enterprise Virtualization (RHEV) by syedmshaafSyed Shaaf
Red Hat Enterprise Virtualization (RHEV) is a virtualization platform based on KVM (Kernel-based Virtual Machine) that allows multiple operating systems to run concurrently on shared hardware resources. RHEV provides a centralized management interface, live migration capabilities, high availability features, and integration with third party systems through APIs and hooks. IBM invests heavily in KVM development and uses KVM in many of its own products and services.
KISS is an acronym that stands for "Keep It Simple, Stupid" and refers to a design principle of developing code and systems in a way that is as simple as possible to increase understandability, ease of development and maintenance. Applying KISS principles involves breaking problems down into small pieces, writing concise code to directly solve each problem, and reviewing code informally to identify issues early. Benefits of KISS include being able to solve problems faster, produce higher quality and more maintainable code, and build larger systems more easily.
EDS is an open source data virtualization system that allows applications to access and integrate data from multiple heterogeneous data sources through a relational abstraction. It focuses on real-time integration performance, full integration via SQL and procedures, and providing JDBC access. This enables data services and integration of legacy and JPA applications. EDS uses query optimization techniques like access pattern pushdown, dependent and optional joins, and caching to improve performance. It handles large loads through memory buffering, non-blocking source queries, time slicing, and various caching mechanisms. Transactions can be global, local, or at the command level using JTA.
Mobile App Development Company in Saudi ArabiaSteve Jonas
EmizenTech is a globally recognized software development company, proudly serving businesses since 2013. With over 11+ years of industry experience and a team of 200+ skilled professionals, we have successfully delivered 1200+ projects across various sectors. As a leading Mobile App Development Company In Saudi Arabia we offer end-to-end solutions for iOS, Android, and cross-platform applications. Our apps are known for their user-friendly interfaces, scalability, high performance, and strong security features. We tailor each mobile application to meet the unique needs of different industries, ensuring a seamless user experience. EmizenTech is committed to turning your vision into a powerful digital product that drives growth, innovation, and long-term success in the competitive mobile landscape of Saudi Arabia.
#StandardsGoals for 2025: Standards & certification roundup - Tech Forum 2025BookNet Canada
Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next.
Link to recording, transcript, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/
Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.
TrsLabs - Fintech Product & Business ConsultingTrs Labs
Hybrid Growth Mandate Model with TrsLabs
Strategic Investments, Inorganic Growth, Business Model Pivoting are critical activities that business don't do/change everyday. In cases like this, it may benefit your business to choose a temporary external consultant.
An unbiased plan driven by clearcut deliverables, market dynamics and without the influence of your internal office equations empower business leaders to make right choices.
Getting things done within a budget within a timeframe is key to Growing Business - No matter whether you are a start-up or a big company
Talk to us & Unlock the competitive advantage
Semantic Cultivators : The Critical Future Role to Enable AIartmondano
By 2026, AI agents will consume 10x more enterprise data than humans, but with none of the contextual understanding that prevents catastrophic misinterpretations.
Generative Artificial Intelligence (GenAI) in BusinessDr. Tathagat Varma
My talk for the Indian School of Business (ISB) Emerging Leaders Program Cohort 9. In this talk, I discussed key issues around adoption of GenAI in business - benefits, opportunities and limitations. I also discussed how my research on Theory of Cognitive Chasms helps address some of these issues
Linux Support for SMARC: How Toradex Empowers Embedded DevelopersToradex
Toradex brings robust Linux support to SMARC (Smart Mobility Architecture), ensuring high performance and long-term reliability for embedded applications. Here’s how:
• Optimized Torizon OS & Yocto Support – Toradex provides Torizon OS, a Debian-based easy-to-use platform, and Yocto BSPs for customized Linux images on SMARC modules.
• Seamless Integration with i.MX 8M Plus and i.MX 95 – Toradex SMARC solutions leverage NXP’s i.MX 8 M Plus and i.MX 95 SoCs, delivering power efficiency and AI-ready performance.
• Secure and Reliable – With Secure Boot, over-the-air (OTA) updates, and LTS kernel support, Toradex ensures industrial-grade security and longevity.
• Containerized Workflows for AI & IoT – Support for Docker, ROS, and real-time Linux enables scalable AI, ML, and IoT applications.
• Strong Ecosystem & Developer Support – Toradex offers comprehensive documentation, developer tools, and dedicated support, accelerating time-to-market.
With Toradex’s Linux support for SMARC, developers get a scalable, secure, and high-performance solution for industrial, medical, and AI-driven applications.
Do you have a specific project or application in mind where you're considering SMARC? We can help with Free Compatibility Check and help you with quick time-to-market
For more information: https://www.toradex.com/computer-on-modules/smarc-arm-family
AI and Data Privacy in 2025: Global TrendsInData Labs
In this infographic, we explore how businesses can implement effective governance frameworks to address AI data privacy. Understanding it is crucial for developing effective strategies that ensure compliance, safeguard customer trust, and leverage AI responsibly. Equip yourself with insights that can drive informed decision-making and position your organization for success in the future of data privacy.
This infographic contains:
-AI and data privacy: Key findings
-Statistics on AI data privacy in the today’s world
-Tips on how to overcome data privacy challenges
-Benefits of AI data security investments.
Keep up-to-date on how AI is reshaping privacy standards and what this entails for both individuals and organizations.
Spark is a powerhouse for large datasets, but when it comes to smaller data workloads, its overhead can sometimes slow things down. What if you could achieve high performance and efficiency without the need for Spark?
At S&P Global Commodity Insights, having a complete view of global energy and commodities markets enables customers to make data-driven decisions with confidence and create long-term, sustainable value. 🌍
Explore delta-rs + CDC and how these open-source innovations power lightweight, high-performance data applications beyond Spark! 🚀
Technology Trends in 2025: AI and Big Data AnalyticsInData Labs
At InData Labs, we have been keeping an ear to the ground, looking out for AI-enabled digital transformation trends coming our way in 2025. Our report will provide a look into the technology landscape of the future, including:
-Artificial Intelligence Market Overview
-Strategies for AI Adoption in 2025
-Anticipated drivers of AI adoption and transformative technologies
-Benefits of AI and Big data for your business
-Tips on how to prepare your business for innovation
-AI and data privacy: Strategies for securing data privacy in AI models, etc.
Download your free copy nowand implement the key findings to improve your business.
Procurement Insights Cost To Value Guide.pptxJon Hansen
Procurement Insights integrated Historic Procurement Industry Archives, serves as a powerful complement — not a competitor — to other procurement industry firms. It fills critical gaps in depth, agility, and contextual insight that most traditional analyst and association models overlook.
Learn more about this value- driven proprietary service offering here.
Increasing Retail Store Efficiency How can Planograms Save Time and Money.pptxAnoop Ashok
In today's fast-paced retail environment, efficiency is key. Every minute counts, and every penny matters. One tool that can significantly boost your store's efficiency is a well-executed planogram. These visual merchandising blueprints not only enhance store layouts but also save time and money in the process.
Artificial Intelligence is providing benefits in many areas of work within the heritage sector, from image analysis, to ideas generation, and new research tools. However, it is more critical than ever for people, with analogue intelligence, to ensure the integrity and ethical use of AI. Including real people can improve the use of AI by identifying potential biases, cross-checking results, refining workflows, and providing contextual relevance to AI-driven results.
News about the impact of AI often paints a rosy picture. In practice, there are many potential pitfalls. This presentation discusses these issues and looks at the role of analogue intelligence and analogue interfaces in providing the best results to our audiences. How do we deal with factually incorrect results? How do we get content generated that better reflects the diversity of our communities? What roles are there for physical, in-person experiences in the digital world?
UiPath Community Berlin: Orchestrator API, Swagger, and Test Manager APIUiPathCommunity
Join this UiPath Community Berlin meetup to explore the Orchestrator API, Swagger interface, and the Test Manager API. Learn how to leverage these tools to streamline automation, enhance testing, and integrate more efficiently with UiPath. Perfect for developers, testers, and automation enthusiasts!
📕 Agenda
Welcome & Introductions
Orchestrator API Overview
Exploring the Swagger Interface
Test Manager API Highlights
Streamlining Automation & Testing with APIs (Demo)
Q&A and Open Discussion
Perfect for developers, testers, and automation enthusiasts!
👉 Join our UiPath Community Berlin chapter: https://community.uipath.com/berlin/
This session streamed live on April 29, 2025, 18:00 CET.
Check out all our upcoming UiPath Community sessions at https://community.uipath.com/events/.
Noah Loul Shares 5 Steps to Implement AI Agents for Maximum Business Efficien...Noah Loul
Artificial intelligence is changing how businesses operate. Companies are using AI agents to automate tasks, reduce time spent on repetitive work, and focus more on high-value activities. Noah Loul, an AI strategist and entrepreneur, has helped dozens of companies streamline their operations using smart automation. He believes AI agents aren't just tools—they're workers that take on repeatable tasks so your human team can focus on what matters. If you want to reduce time waste and increase output, AI agents are the next move.
Book industry standards are evolving rapidly. In the first part of this session, we’ll share an overview of key developments from 2024 and the early months of 2025. Then, BookNet’s resident standards expert, Tom Richardson, and CEO, Lauren Stewart, have a forward-looking conversation about what’s next.
Link to recording, presentation slides, and accompanying resource: https://bnctechforum.ca/sessions/standardsgoals-for-2025-standards-certification-roundup/
Presented by BookNet Canada on May 6, 2025 with support from the Department of Canadian Heritage.
3. Namespaces
namespace wraps a particular global system
resource in an abstraction that tells the
processes within the namespace that they have
their own isolated instance of the global
resource
4. Namespaces
Mount - CLONE_NEWNS, Linux 2.4.19
IPC - CLONE_NEWIPC, Linux 2.6.19
PID - CLONE_NEWPID, Linux 2.6.24
UTS - CLONE_NEWUTS, Linux 2.6.19
Network - CLONE_NEWNET, started in Linux 2.6.24
User - CLONE_NEWUSER, started in Linux 2.6.23
5. Cgroups
Control Groups provide a mechanism for
aggregating/partitioning sets of
tasks, and all their future children, into
hierarchical groups with
specialized behaviour.
Ref: Kernel.org
8. Software packaging concept that typically includes an application and all of its runtime
dependencies.
● Easy to deploy and portable
across host systems
● Isolates applications on a
host operating system. In RHEL,
this is done through:
● Control Groups (cgroups)
● kernel namespaces
● SELinux, sVirt
What is?
9. Loose 1 not all
...and compromised, there is far less exposure.
Only the container process is lost – lose the
process not the system.