Fabric 2.0 - dynamically add organizations

General Catalogue:(0) how to use blockchain to protect intellectual property(1) HyperLedger Fabric 2.0-release test network deployment(2) Fabric 2.0 first network generation configuration description (3) Configuration analysis of fabric 2.0 startup network script(4) Fabric 2.0 channel practice(5) Fabric ...

Posted on Wed, 26 Feb 2020 01:35:26 -0800 by automatix

Multi stage and multi-stage construction in dockerfile

In the process of software development with container technology, it is time-consuming and laborious to control the size of container image. If the image we build is not only the environment of compiling software, but also the final running environment of software, it is difficult to control the imag ...

Posted on Tue, 25 Feb 2020 22:22:32 -0800 by Nicksta

# IT Stars Are Not Dreams # Illustrate the Implementation Principle of kubernetes Resource QOS Mechanism

QOS is a resource protection mechanism in k8s. It is mainly a control technology for incompressible resources such as memory, such as by constructing OOM scores for different Pods and containers in memory, and assisted by the kernel's policy, so that when the node has insufficient memory resources, the kernel can kill which priority is lower a ...

Posted on Wed, 19 Feb 2020 09:20:36 -0800 by Lord Brar

docker overlay network cross host communication -- using (OVS) to get through the network

As mentioned in the previous section, there are four ways to get through the communication between docker s across hosts. This paper introduces the second common method: Using openvswitch to get through the network is a mainstream virtualization technology:Its advantages are: flexible No requirement fo ...

Posted on Wed, 19 Feb 2020 06:30:08 -0800 by TheFreak

K8S learning 003 -- using kubeadm to deploy the installation cluster

Article directory Preface 1: Environmental preparation 2: Cluster deployment process 2.1: set system initialization 2.1.1: three nodes initialize the system, showing only the operation of the master node 2.2:kubeadm deployment and installation 2.2.1: docker installation, both master and slave 2.2 ...

Posted on Fri, 14 Feb 2020 05:10:35 -0800 by stewart

Docker builds Kong -- configures Service and adds key auth

Kong is an API gateway that forwards API communication between the client and the (micro) service.Conceptual terminologyUpstream: it is an abstraction of the upstream server;target: represents a physical service, which is the abstraction of ip + port;Service: it is an abstract level service. It can be directly mapped to a physical service (ho ...

Posted on Fri, 14 Feb 2020 04:42:41 -0800 by lovesmith

Openshift 4 hands on Lab - Build and update images with Build, Builder Trigger, Webhook

Article directory Related concepts of building image BuildConfig Build Builder Image Build Trigger and Build Chain Trigger Build to create or update images Build Trigger based on Webhook Using Build Trigger to update Image automatically Related concepts of building image Applications runni ...

Posted on Wed, 12 Feb 2020 04:18:38 -0800 by Stressed

Implement FlowNetPytorch (ubuntu18.04 cuda10.1 cudnn7.6.4) using a pre-trained model

The definition of optical flow and so on, if you don't know you can search by yourself, you won't talk about it here. There are many traditional methods for optical flow extraction, which do not necessarily require in-depth learning, such as those that come with opencv.Here's how to say that flownet is ...

Posted on Tue, 11 Feb 2020 19:56:33 -0800 by Gibbs

2. Docker uses templates to create images, container management, warehouse management, data management

1. Docker uses templates to create mirrors Download a template first http://download.openvz.org/template/precreated/ //Download speed is not fast, download a CentOS 6 template centos-6-x86-minimal.tar.gz [root@fuxi01 ~]# wget http://download.openvz.org/template/precreated/centos-6-x86-minimal.tar.gz The command to import the image is: # cat c ...

Posted on Tue, 11 Feb 2020 19:24:12 -0800 by simon71

What the hell is "PLEG is not health" in Kubelet?

>Original link: Deep understanding of PLEG is not health in Kubelet In the Kubernetes community, PLEG is not health has been famous for a long time. As long as this error occurs, there is a high probability that the Node status will become NotReady. There are also a large number of community related issue s. Let me list them for you: https: ...

Posted on Mon, 10 Feb 2020 23:03:04 -0800 by Harry57