Hyperledger Technical Community in China.
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The Hyperledger Technical Community in China was founded in December 2016 and has over 10 volunteers. Its goals are to help build the China technical community, promote Hyperledger technical development, and focus on technical development, documentation and education, adoption and collaboration, and event organization. The community believes in open-source technologies and values trust, collaboration, mutual benefit, and openness.
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64-bit ARM Unikernels on uKVM
This document discusses unikernels and uKVM running on ARM64 architecture. It provides an introduction to unikernels and how they address issues with traditional workloads on the cloud like slow initialization and excessive resource usage. It describes how uKVM provides virtualization for unikernels and the work being done to port uKVM to ARM64. A demo shows the small footprint and fast boot time of an Nginx unikernel running on uKVM for ARM64, and how many instances can run simultaneously on a single host. Future work is outlined to improve compatibility and performance.
GPU Acceleration for Containers on Intel Processor Graphics
Presentation delivered at the 2017 LinuxCon China.
Container is a popular technology in cloud with the merits of fast provisioning, high density and near-native performance. New requirements have been rising to further use GPU to accelerate various applications in containers, e.g. media trans-coding, machine learning, etc. However there is still gap of managing GPU in such container usages. This presentation will first review the status of GPU support on both native container and Intel clear container, then provide an anatomy of technical gaps and enabling plans in major areas (orchestration layer, resource isolation and QoS performance isolation), then review our work for GPU virtualization in clear container and prototype work through extensions in docker plugin, cgroup and GPU scheduler to fix those gaps.
Libvirt API Certification
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LiteOS
The document discusses Internet of Things (IoT) technologies and applications. It describes how Huawei's LiteOS operating system enables device intelligence and easy connectivity between devices and IoT platforms. LiteOS supports a variety of microcontroller boards and has partnered with STMicroelectronics to launch NB-IoT development kits. The document encourages developers to get involved with the LiteOS open source community through its website, GitHub repository, workshops, and other resources.
Building a Better Thermostat
This document outlines Matthew Treinish's project to build a better thermostat using open source tools. It describes how he used a Z-Wave power switch and wireless temperature sensor to control the air conditioner and measure temperature. He implemented this using the Home Assistant home automation platform, setting up a generic thermostat device. Issues with reliability and manual configuration led to improvements such as automating temperature set points based on location tracking and scheduled times. Future work includes adding more sensors and automation functionality.
OCI Support in Mesos
The document discusses support for Open Container Initiative (OCI) images in Mesos. It provides an overview of OCI specifications including the image format specification. It describes how Mesos stores and retrieves OCI images from a default location based on the image layout. It also discusses how the existing Docker isolator was extended to support running containers from both Docker images and OCI images.
Rethinking the OS
Presentation delivered at LinuxCon China 2017. Rethinking the Operating System.
A new wave of Operating Systems optimized for containers appeared on the horizon making us excited and puzzeled at the same time.
"Why do we need anything different for containers when traditional OSs served us well in the last 25+ years?" "Isn't Kubernetes just another package to install on top of my favorite distro?"" Will this obsolete my whole infrastructure?" are some of the questions this talk will shed some light on.
Explore the journey SUSE made in rethinking the OS: From a conservative linux distribution to a platform that goes hand in hand with the needs of Microservices.
You will get an insight at what lessons were learned during the intense development effort that lead to SUSE Containers as a Service Platform, how the obstacles along the way were lifted and why "Upstream first" is - and should always be - the rule.
OpenStack on AArch64
Besides huge success in mobile, ARM is also ambitious in server field. Software ecosystem is now a barrier for wide deployment of ARM servers in data center. ARM Shanghai Workloads team is working on clouding and big data software enablement and optimization on ARM64 platform.
In this presentation, Yibo Cai will introduce the status and challenges of running OpenStack on ARM servers, with emphasis on OpenStack compute, storage and networking.
Recommended
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This document discusses unikernels and uKVM running on ARM64 architecture. It provides an introduction to unikernels and how they address issues with traditional workloads on the cloud like slow initialization and excessive resource usage. It describes how uKVM provides virtualization for unikernels and the work being done to port uKVM to ARM64. A demo shows the small footprint and fast boot time of an Nginx unikernel running on uKVM for ARM64, and how many instances can run simultaneously on a single host. Future work is outlined to improve compatibility and performance.
GPU Acceleration for Containers on Intel Processor Graphics
Presentation delivered at the 2017 LinuxCon China.
Container is a popular technology in cloud with the merits of fast provisioning, high density and near-native performance. New requirements have been rising to further use GPU to accelerate various applications in containers, e.g. media trans-coding, machine learning, etc. However there is still gap of managing GPU in such container usages. This presentation will first review the status of GPU support on both native container and Intel clear container, then provide an anatomy of technical gaps and enabling plans in major areas (orchestration layer, resource isolation and QoS performance isolation), then review our work for GPU virtualization in clear container and prototype work through extensions in docker plugin, cgroup and GPU scheduler to fix those gaps.
Libvirt API Certification
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LiteOS
The document discusses Internet of Things (IoT) technologies and applications. It describes how Huawei's LiteOS operating system enables device intelligence and easy connectivity between devices and IoT platforms. LiteOS supports a variety of microcontroller boards and has partnered with STMicroelectronics to launch NB-IoT development kits. The document encourages developers to get involved with the LiteOS open source community through its website, GitHub repository, workshops, and other resources.
Building a Better Thermostat
This document outlines Matthew Treinish's project to build a better thermostat using open source tools. It describes how he used a Z-Wave power switch and wireless temperature sensor to control the air conditioner and measure temperature. He implemented this using the Home Assistant home automation platform, setting up a generic thermostat device. Issues with reliability and manual configuration led to improvements such as automating temperature set points based on location tracking and scheduled times. Future work includes adding more sensors and automation functionality.
OCI Support in Mesos
The document discusses support for Open Container Initiative (OCI) images in Mesos. It provides an overview of OCI specifications including the image format specification. It describes how Mesos stores and retrieves OCI images from a default location based on the image layout. It also discusses how the existing Docker isolator was extended to support running containers from both Docker images and OCI images.
Rethinking the OS
Presentation delivered at LinuxCon China 2017. Rethinking the Operating System.
A new wave of Operating Systems optimized for containers appeared on the horizon making us excited and puzzeled at the same time.
"Why do we need anything different for containers when traditional OSs served us well in the last 25+ years?" "Isn't Kubernetes just another package to install on top of my favorite distro?"" Will this obsolete my whole infrastructure?" are some of the questions this talk will shed some light on.
Explore the journey SUSE made in rethinking the OS: From a conservative linux distribution to a platform that goes hand in hand with the needs of Microservices.
You will get an insight at what lessons were learned during the intense development effort that lead to SUSE Containers as a Service Platform, how the obstacles along the way were lifted and why "Upstream first" is - and should always be - the rule.
OpenStack on AArch64
Besides huge success in mobile, ARM is also ambitious in server field. Software ecosystem is now a barrier for wide deployment of ARM servers in data center. ARM Shanghai Workloads team is working on clouding and big data software enablement and optimization on ARM64 platform.
In this presentation, Yibo Cai will introduce the status and challenges of running OpenStack on ARM servers, with emphasis on OpenStack compute, storage and networking.
Linux Kernel Development
Presentation delivered at LinuxCon China 2017 by Greg Kroah-Hartman.
The Linux kernel is the largest collaborative software development projects ever. This talk will discuss exactly how Linux is developed, how fast it is happening, who is doing the work, and how we all stay sane keeping up with it. It will discuss the development model used, and how it differs from almost all "traditional" models of software development.
Simplify Networking for Containers
Presentation given at the 2017 LinuxCon China
With the booming of Container technology, it brings obvious advantages for cloud: simple and faster deployment, portability and lightweight cost. But the networking challenges are significant. Users need to restructure their network and support container deployment with current cloud framework, like container and VMs.
In this presentation, we will introduce new container networking solution, which provides one management framework to work with different network componenets through Open/friendly modelling mechnism. iCAN can simplify network deployment and management with most orchestration systems and a variety of data plane components, and design extendsible architect to define and validate Service Level Agreement(SLA) for cloud native applications, which is important factor for enterprise to deliver successful and stable service via containers.
Linuxcon secureefficientcontainerimagemanagementharbor
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Zephyr: Creating a Best-of-Breed, Secure RTOS for IoT
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Obstacles & Solutions for Livepatch Support on ARM64 Architecture
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This document discusses obstacles and solutions for supporting live kernel patching (livepatching) on ARM64 architecture. Livepatching allows patching a running kernel without reboots. It is currently only supported on x86, s390 and powerpc. For ARM64, the main obstacle is that the ARM64 calling convention stores return addresses in a link register rather than the stack. The document proposes a solution that extends the profile instrumentation to save and restore the link register, allowing ftrace to be adapted for ARM64 livepatching. It provides an overview of upstream work on gcc and kernel support to enable livepatching for ARM64.Running Legacy Applications with Containers
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See what happened with real time kvm when building real time cloud pezhang@re...
See what happened with real time kvm when building real time cloud pezhang@re...LinuxCon ContainerCon CloudOpen China
Presentation delivered at LinuxCon China 2017
Real-Time is used for deadline-oriented applications and time-sensitive workloads. Real-Time KVM is the extension of KVM(Linux Kernel-based Virtual Machine) to allow the virtual machines(VM) to be a truly Real-Time operating system.Users sometimes need to run low-latency applications(such as audio/video streaming, highly interactive systems, etc) to meet their requirements in clouds. NFV is a new network concept which uses virtualization and software instead of dedicated network appliances. For some use cases of telecommunications, network latency must be within a certain range of values. Real-Time KVM can help NFV meet this requirements.
In this presentation, Pei Zhang will talk about:
(1)Real-Time KVM introduction
(2)Real-Time cloud building
(3)Real-Time KVM in NFV: VM with openvswitch, dpdk and qemu’s vhostuser
(4)Performance testing results show Policy-based Resource Placement
Resource placement is a policy-rich problem, particularly across multi-cluster, multi-geography and multi-cloud environments. Placement may be based on company conventions, external regulation, pricing, performance requirements, or complex combinations of those. Furthermore, placement policies evolve over time and vary across organizations. As a result, it is very difficult to anticipate the policy requirements of all users.
In this presentation, Torin Sandal (Lead Engineer of Open Policy Agent) will present, along with Irfan Ur Rehman, and demonstrate the work they've done integrating OPA into the Kubernetes Cluster Federation Control Plane. This enables high level policies to be expressed in a easy to understand policy language, and automatically enforced across federations of Kubernetes clusters.
There is NO Open Source Business Model
Presentation by Stephen R. Walli at LinuxCon China 2017
There are best practices to understand when building products from open source software, but there are a number of anti-patterns that crop up along the way. Product teams (from engineering to marketing) need to understand these patterns and practices to participate best in open source project communities and deliver products and services to their customers at the same time. These patterns hold regardless of whether the vendor created and owns the project or participates in projects outside their control.
Is there still room for innovation in container orchestration and scheduling
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In the container ecosystem, there is perhaps no technology that has received more focus and attention than orchestration and scheduling. Mesos, Kubernetes, and Swarm have established themselves as the leading technology choices in this space.
In this talk, Sheng will discuss what he learned from working directly with hundreds of users who have deployed one of these frameworks. He will look at how these frameworks will continue to evolve and if there’re any gaps and opportunities in container orchestration and scheduling. Sheng will make a case that there are still room for innovation and new orchestration and scheduling frameworks will be created in the future. He will discuss what new frameworks might look like--the features, functionalities, and attributes that differentiate them from the mainstream frameworks today. How Open Source Communities do Standardization
This document discusses how open source communities can effectively do standardization. It addresses some challenges open source communities face in standardization, including unclear customer requirements, fast innovation cycles misaligned with industry cadence, and differences between coding and standardization processes. It provides principles for open source standardization, such as being customer-centric and identifying requirements early, and leveraging existing standards where possible rather than duplicating efforts. The overall goal of standardization for open source is to help unlock the business value of open source technologies for customers.
Get a Taste of 1 k+ Nodes by a Handful of Servers
This document discusses containerized testing of OpenStack scalability. It explores using Docker containers to provision OpenStack components like Neutron and OpenDaylight in a distributed manner. The approach aims to test scalability up to 1,000 nodes using a handful of physical servers. It analyzes component footprints and tasks. Considerations for extending the tests to larger 1,000 node scales include physical server capacity, container placement density, network bandwidth, and more sophisticated test scenarios.
SecurityPI - Hardening your IoT endpoints in Home.
A lot of Internet of things devices use linux as its core. More so with the advent of DIY projects and Internet of things projects. A lot of Raspberry PI's, Beaglebone, Tessel boards are out there with default settings, and all connected to the internet, ready to be taken over. With the recent dyn DNS attack its of prime importance to know how we can keep these end point devices secure and out of the hands of botnet hoarders, attackers. In this presentation Rabimba Karanjai will show how to harden the security on these endpint devices taking a RaspBerry PI as an example. He will explain different techniques with code examples along with a toolkit made specifically for this demo which will make devices considerable harder to compromise. And even when they are, will allow to locate and detect the breach. After all, proetcting the device fially protects us all (prevents another DDOS)
Quickly Debug VM Failures in OpenStack
This document discusses how to quickly debug VM failures in OpenStack. It begins by explaining where VMs run in OpenStack and how VM startup is implemented. It then describes how to use various logs from OpenStack components like Nova, Neutron, and libvirt/Qemu to troubleshoot issues. The document also provides examples of common VM failure types and outlines steps for debugging, including checking configuration settings, log files, and using troubleshooting tools like Virsh and ABRT. Finally, it calls for collecting VM failure scenarios and solutions to integrate into monitoring tools like StackTach.
Build Robust Blockchain Services with Hyperledger and Containers
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Presentation delivered at the 2017 LinuxCon China.
Build robust blockchain services (Wenjie(Jay) Xie, wutongtree.com) - Blockchain is considered as a great evolution. But the performance, maintainability, and scalability are still confusing many companies. Jay will show you how they reach high availability, scalability, and performance by using hyperledger and container to build robust blockchain services. He will also share their experience on dealing TB data in blockchain and operating a large scale of blockchain services in containers, including linking hyperledger and hbase, service warmup, and much more. The Open vSwitch and OVN Projects
Presentation delivered at LinuxCon China 2017.
Open vSwitch (OVS) is a multilayer open source virtual switch. OVS is designed to enable massive network automation through programmatic extension, while still supporting standard management interfaces. OVN is a new network virtualization project that brings virtual networking to the Open vSwitch user community. OVN includes logical switches and routers, security groups, and L2/L3/L4 ACLs, implemented on top of a tunnel-based overlay network.
In this presentation, we will provide an overview of the current state of the projects and their future plans, such as:
- The current state of the Linux, DPDK, and Hyper-V ports
- A status update on a portable BPF-based datapath
- The latest stateful and OpenFlow features available in OVS
- Performance and debugging enhancement to OVN
- OVN features under development such as ACL logging and encrypted tunnels
Fully automated kubernetes deployment and management
Fully Automated Kubernetes Deployment and Management (Peng Jiang, Rancher Labs) - Kubernetes is rapidly gaining popularity as a powerful container orchestration and scheduling platform. But deploying and managing Kubernetes clusters is still a challenge for many organizations.How to ensure Kubernetes clusters in different clouds and data centers can communicate with each other? How to automate the deployment of multiple Kubernetes clusters? How to incorporate the new Kubernetes Federation into multi cloud and multi datacenter deployments? How to manage the health of Kubernetes cluster itself? etc.
In this talk, Peng will share his experience on how to automate and simplify Kubernetes deployments, and discuss how some of the latest community projects (such as kubeadm and self-hosting Kubernetes) will help address the problems in the future.
Unikernelized Linux
Presentation given at the 2017 LinuxCon China
Unikernel is a novel software technology that links an application with OS in the form of a library and packages them into a specialized image that facilitates direct deployment on a hypervisor. Comparing to the traditional VM or the recent containers, Unikernels are smaller, more secure and efficient, making them ideal for cloud environments. There are already lots of open source projects like OSv, Rumprun and so on. But why these existing unikernels have yet to gain large popularity broadly? We think Unikernels are facing three major challenges: 1. Compatibility with existing applications; 2. Lack of production support (e.g. monitoring, debugging, logging); 3. Lack of compelling use case. In this presentation, we will review our investigations and exploration of if-how we can convert Linux as Unikernel to eliminate these significant shortcomings, plus some explorations of coordinating and cooperating with hypervisor.
kdump: usage and_internals
Kdump is a long existing method for acquiring dump of crashed kernel, however very few literatures are available to understand it's usage and internals. We receive a lot of queries on kexec mailing list about different issues related to the kexec/kdump environment.
In this presentation, we talk about basics of kdump usage and some internals about kdump/kexec kernel implementation. It includes end to end flow from kdump kernel configuration to crash analysis. We discuss some of the problem which is frequently faced by kdump users. It also includes related information about ELF structure, so that one can debug if vmcore itself gets corrupted because of any architecture related issue.
Status of Embedded Linux
This document provides a summary of the status of embedded Linux. It discusses recent Linux kernel versions from 4.7 to the upcoming 4.12, highlighting new features. It also covers technology areas like boot time, device tree, graphics, file systems, and security. Several ongoing Linux Foundation projects are mentioned like Long Term Support Initiative, Fuego test framework, and the eLinux wiki. Finally, it lists upcoming conferences and trade associations working on embedded Linux. The document aims to give a quick overview of the current state of embedded Linux topics and projects.
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Linux Kernel Development
Presentation delivered at LinuxCon China 2017 by Greg Kroah-Hartman.
The Linux kernel is the largest collaborative software development projects ever. This talk will discuss exactly how Linux is developed, how fast it is happening, who is doing the work, and how we all stay sane keeping up with it. It will discuss the development model used, and how it differs from almost all "traditional" models of software development.
Simplify Networking for Containers
Presentation given at the 2017 LinuxCon China
With the booming of Container technology, it brings obvious advantages for cloud: simple and faster deployment, portability and lightweight cost. But the networking challenges are significant. Users need to restructure their network and support container deployment with current cloud framework, like container and VMs.
In this presentation, we will introduce new container networking solution, which provides one management framework to work with different network componenets through Open/friendly modelling mechnism. iCAN can simplify network deployment and management with most orchestration systems and a variety of data plane components, and design extendsible architect to define and validate Service Level Agreement(SLA) for cloud native applications, which is important factor for enterprise to deliver successful and stable service via containers.
Linuxcon secureefficientcontainerimagemanagementharbor
This document discusses container image management in enterprises and introduces Project Harbor, an open source container registry. It covers key topics like container image basics, Project Harbor features, maintaining consistency of images between environments, security and access control of images, image distribution strategies, and high availability of container registries. Project Harbor provides an enterprise-grade private registry with features for user management, image replication, security, and integration with systems like LDAP. It aims to help organizations securely manage the distribution and storage of container images.
Zephyr: Creating a Best-of-Breed, Secure RTOS for IoT
Presentation delivered at LinuxCon China 2017.
Zephyr is an upstream open source project for places where Linux is too big to fit. This talk will overview the progress we've made in the first year towards the projects goals around incorporating best of breed technologies into the code base, and building up the community to support multiple architectures and development environments. We will share our roadmap, plans and the challenges ahead of the us and give an overview of the major technical challenges we want to tackle in 2017.
OpenDaylight OpenStack Integration
Networking-odl and ODL Neutron Northbound are the key components for integrating OpenStack Neutron and OpenDaylight. They are actively developed open source projects. The document encourages giving the integration a try, providing feedback, and contributing to help further the integration of OpenStack and OpenDaylight networking.
Obstacles & Solutions for Livepatch Support on ARM64 Architecture
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Enterprise data centers have to support a diverse of set of workloads: cloud native, big data, high performance computing, and legacy applications. While cloud native applications are ideal to run in Docker clusters, bare metal and virtualization infrastructures must still be supported in the data center. The result is a proliferation of clusters and technologies running in individual silos, resulting in high management costs and low utilization. This talk describes the challenges and experiences in implementing a shared cluster infrastructure based on Kubernetes to support big data, high performance computing, and VM-based workloads. The talk will show the deployment and scaling of a high performance computing workload manager, Spark, and OpenStack, and how the VM and Docker management can be integrated together.
See what happened with real time kvm when building real time cloud pezhang@re...
See what happened with real time kvm when building real time cloud pezhang@re...LinuxCon ContainerCon CloudOpen China
Presentation delivered at LinuxCon China 2017
Real-Time is used for deadline-oriented applications and time-sensitive workloads. Real-Time KVM is the extension of KVM(Linux Kernel-based Virtual Machine) to allow the virtual machines(VM) to be a truly Real-Time operating system.Users sometimes need to run low-latency applications(such as audio/video streaming, highly interactive systems, etc) to meet their requirements in clouds. NFV is a new network concept which uses virtualization and software instead of dedicated network appliances. For some use cases of telecommunications, network latency must be within a certain range of values. Real-Time KVM can help NFV meet this requirements.
In this presentation, Pei Zhang will talk about:
(1)Real-Time KVM introduction
(2)Real-Time cloud building
(3)Real-Time KVM in NFV: VM with openvswitch, dpdk and qemu’s vhostuser
(4)Performance testing results show Policy-based Resource Placement
Resource placement is a policy-rich problem, particularly across multi-cluster, multi-geography and multi-cloud environments. Placement may be based on company conventions, external regulation, pricing, performance requirements, or complex combinations of those. Furthermore, placement policies evolve over time and vary across organizations. As a result, it is very difficult to anticipate the policy requirements of all users.
In this presentation, Torin Sandal (Lead Engineer of Open Policy Agent) will present, along with Irfan Ur Rehman, and demonstrate the work they've done integrating OPA into the Kubernetes Cluster Federation Control Plane. This enables high level policies to be expressed in a easy to understand policy language, and automatically enforced across federations of Kubernetes clusters.
There is NO Open Source Business Model
Presentation by Stephen R. Walli at LinuxCon China 2017
There are best practices to understand when building products from open source software, but there are a number of anti-patterns that crop up along the way. Product teams (from engineering to marketing) need to understand these patterns and practices to participate best in open source project communities and deliver products and services to their customers at the same time. These patterns hold regardless of whether the vendor created and owns the project or participates in projects outside their control.
Is there still room for innovation in container orchestration and scheduling
Is there still room for innovation in container orchestration and scheduling LinuxCon ContainerCon CloudOpen China
In the container ecosystem, there is perhaps no technology that has received more focus and attention than orchestration and scheduling. Mesos, Kubernetes, and Swarm have established themselves as the leading technology choices in this space.
In this talk, Sheng will discuss what he learned from working directly with hundreds of users who have deployed one of these frameworks. He will look at how these frameworks will continue to evolve and if there’re any gaps and opportunities in container orchestration and scheduling. Sheng will make a case that there are still room for innovation and new orchestration and scheduling frameworks will be created in the future. He will discuss what new frameworks might look like--the features, functionalities, and attributes that differentiate them from the mainstream frameworks today. How Open Source Communities do Standardization
This document discusses how open source communities can effectively do standardization. It addresses some challenges open source communities face in standardization, including unclear customer requirements, fast innovation cycles misaligned with industry cadence, and differences between coding and standardization processes. It provides principles for open source standardization, such as being customer-centric and identifying requirements early, and leveraging existing standards where possible rather than duplicating efforts. The overall goal of standardization for open source is to help unlock the business value of open source technologies for customers.
Get a Taste of 1 k+ Nodes by a Handful of Servers
This document discusses containerized testing of OpenStack scalability. It explores using Docker containers to provision OpenStack components like Neutron and OpenDaylight in a distributed manner. The approach aims to test scalability up to 1,000 nodes using a handful of physical servers. It analyzes component footprints and tasks. Considerations for extending the tests to larger 1,000 node scales include physical server capacity, container placement density, network bandwidth, and more sophisticated test scenarios.
SecurityPI - Hardening your IoT endpoints in Home.
A lot of Internet of things devices use linux as its core. More so with the advent of DIY projects and Internet of things projects. A lot of Raspberry PI's, Beaglebone, Tessel boards are out there with default settings, and all connected to the internet, ready to be taken over. With the recent dyn DNS attack its of prime importance to know how we can keep these end point devices secure and out of the hands of botnet hoarders, attackers. In this presentation Rabimba Karanjai will show how to harden the security on these endpint devices taking a RaspBerry PI as an example. He will explain different techniques with code examples along with a toolkit made specifically for this demo which will make devices considerable harder to compromise. And even when they are, will allow to locate and detect the breach. After all, proetcting the device fially protects us all (prevents another DDOS)
Quickly Debug VM Failures in OpenStack
This document discusses how to quickly debug VM failures in OpenStack. It begins by explaining where VMs run in OpenStack and how VM startup is implemented. It then describes how to use various logs from OpenStack components like Nova, Neutron, and libvirt/Qemu to troubleshoot issues. The document also provides examples of common VM failure types and outlines steps for debugging, including checking configuration settings, log files, and using troubleshooting tools like Virsh and ABRT. Finally, it calls for collecting VM failure scenarios and solutions to integrate into monitoring tools like StackTach.
Build Robust Blockchain Services with Hyperledger and Containers
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Presentation delivered at the 2017 LinuxCon China.
Build robust blockchain services (Wenjie(Jay) Xie, wutongtree.com) - Blockchain is considered as a great evolution. But the performance, maintainability, and scalability are still confusing many companies. Jay will show you how they reach high availability, scalability, and performance by using hyperledger and container to build robust blockchain services. He will also share their experience on dealing TB data in blockchain and operating a large scale of blockchain services in containers, including linking hyperledger and hbase, service warmup, and much more. The Open vSwitch and OVN Projects
Presentation delivered at LinuxCon China 2017.
Open vSwitch (OVS) is a multilayer open source virtual switch. OVS is designed to enable massive network automation through programmatic extension, while still supporting standard management interfaces. OVN is a new network virtualization project that brings virtual networking to the Open vSwitch user community. OVN includes logical switches and routers, security groups, and L2/L3/L4 ACLs, implemented on top of a tunnel-based overlay network.
In this presentation, we will provide an overview of the current state of the projects and their future plans, such as:
- The current state of the Linux, DPDK, and Hyper-V ports
- A status update on a portable BPF-based datapath
- The latest stateful and OpenFlow features available in OVS
- Performance and debugging enhancement to OVN
- OVN features under development such as ACL logging and encrypted tunnels
Fully automated kubernetes deployment and management
Fully Automated Kubernetes Deployment and Management (Peng Jiang, Rancher Labs) - Kubernetes is rapidly gaining popularity as a powerful container orchestration and scheduling platform. But deploying and managing Kubernetes clusters is still a challenge for many organizations.How to ensure Kubernetes clusters in different clouds and data centers can communicate with each other? How to automate the deployment of multiple Kubernetes clusters? How to incorporate the new Kubernetes Federation into multi cloud and multi datacenter deployments? How to manage the health of Kubernetes cluster itself? etc.
In this talk, Peng will share his experience on how to automate and simplify Kubernetes deployments, and discuss how some of the latest community projects (such as kubeadm and self-hosting Kubernetes) will help address the problems in the future.
Unikernelized Linux
Presentation given at the 2017 LinuxCon China
Unikernel is a novel software technology that links an application with OS in the form of a library and packages them into a specialized image that facilitates direct deployment on a hypervisor. Comparing to the traditional VM or the recent containers, Unikernels are smaller, more secure and efficient, making them ideal for cloud environments. There are already lots of open source projects like OSv, Rumprun and so on. But why these existing unikernels have yet to gain large popularity broadly? We think Unikernels are facing three major challenges: 1. Compatibility with existing applications; 2. Lack of production support (e.g. monitoring, debugging, logging); 3. Lack of compelling use case. In this presentation, we will review our investigations and exploration of if-how we can convert Linux as Unikernel to eliminate these significant shortcomings, plus some explorations of coordinating and cooperating with hypervisor.
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Rebuild - Simplifying Embedded and IoT Development Using Linux Containers
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This document introduces Rebuild, a tool that uses Linux containers to provide isolated development environments. It allows developers to easily create, modify, run, and share consistent environments. Rebuild provides a CLI to manage environments locally and publish them to remote registries for sharing. Environments can be created from base images on DockerHub or by importing file systems. Rebuild aims to simplify embedded and IoT development by eliminating issues caused by inconsistent environments.From Resilient to Antifragile Chaos Engineering Primer
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UEFI HTTP/HTTPS Boot
Presentation delivered at LinuxCon China 2016
UEFI HTTP/HTTPS Boot is a new feature of UEFI 2.5+. In the meantime, this feature is not yet implemented in any Linux bootloader. This Birds of a Feather session will give an introduction to UEFI HTTP/HTTPS Boot, and share a proof-of-concept implementation based on grub2 that works on both the emulator (QEMU/OVMF) and HPE ProLiant Gen10 servers.
For HTTPS, the experience and comparison will be shared between the purely software-based and UEFI-based implementations in the aspects of ease of implementation, security strength, and limitation.
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Presentation delivered at LinuxCon China 2017.
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
みなさんこんにちはこれ何文字まで入るの？40文字以下不可とか本当に意味わからないけどこれ限界文字数書いてないからマジでやばい文字数いけるんじゃないの？えこ...
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