openstack introduction

Openstack official website content: http://docs.openstack.org/grizzly/openstack-object-storage/admin/content/ Because I only focus on the part of openstack Object Storage, I did not write anything related to other modules (or I am relatively lazy). I may add it if necessary in the future. The translation level is limited. If a netizen finds an error during re

As a core tutorial for OpenStack, we have come to the final summary. OpenStack currently has dozens of modules, this tutorial discusses the most important core modules: Keystone,nova,glance,cinder and neutron. Please look at the following figure: This figure is truncated from https://www.openstack.org/software/project-navigator/, which is the official 6 Core Service defined by

Turn from: http://www.ibm.com/developerworks/cn/cloud/library/cl-contributecode-openstack/ Contribute your code to the OpenStack Sheng Bo Hou, software engineer, IBM Introduction: As OpenStack (open source cloud software) is supported, more and more individuals and businesses want to contribute to the

Well, we've already installed fuel master, and now we're ready to install OpenStack, so you can see the OpenStack main interface when the installation is complete.Continue yesterday, we went into the fuel UI and then "new OpenStack Environment" to create the OpenStack deployment environment.650) this.width=650; "src="

perspective of application results, the Netease private cloud platform developed based on OpenStack has achieved the following goals: This increases the company's infrastructure resource utilization and reduces hardware costs. Taking the CPU usage of physical servers as an example, the private cloud platform increases the average CPU usage from 10% to 50%. Improves the level of infrastructure resource management and O M automation, thus reducing

The entire life cycle of instance from creation to deletion is managed by Nova. In the following sections, we take the different operational scenarios in the instance life cycle as an example to analyze in detail how the different Nova components work together and deepen your understanding of Nova through log analysis.Before we study Nova's operations, let's start by learning one important thing: the OpenStack logs.OpenStack's log records very detaile

= = Keystone Service = =OpenStack-keystone: inactiveAs shown above: If you start httpd, you will not be able to start the Openstack-keystone service very well, as you can see in the official documentation: the 35357 . By default, the Keystone service still listens on ports35357. Therefore, this guide disables the Keystone Service.This means that the httpd and

installed Nova-compute and nova-network and Nova-api, and it needs to be able to connect to the extranet. See Nova Multi-host Mode against SPoF for details.Solution 2:failoverFail over. Can transfer 4 seconds to the hot backup, detailed introduction see https://lists.launchpad.net/openstack/msg02099.html. The disadvantage is that a backup machine is required and has a 4-second delay.Solution 3:multi-nicMul

650) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160424-1461498453349065819.png "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160424-1461498585905023822.jpg "alt=" Image143.5.png "style=" border:0px; "/>API front-end servicesEach OpenStack component may contain several sub-services, which must have an API service that is responsible for receiving customer requests.In Nova, for example,

The entire life cycle of instance from creation to deletion is managed by Nova.In the following sections, we take the different operational scenarios in the instance life cycle as an example to analyze in detail how the different Nova components work together and deepen your understanding of Nova through log analysis.Before we study Nova's operations, let's start by learning one important thing: the OpenStack logs.OpenStack's log records very detailed

650) this.width=650; "Title=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160503-1462278374898013082.png "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160503-1462278429940030293.jpg "style=" border:0px;float:none; "/>The entire life cycle of instance from creation to deletion is managed by Nova. In the following sections, we take the different operational scenarios in the instance life cycle as an example to analyze in detail how the different Nova compon

OpenStack is an excellent cloud operating system, and it is wise for developers, administrators, and operators to have the skills associated with them in their virtual toolkit. Efficient cloud requires an efficient database and can accept multiple databases. But what if you want IBM? DB2 for OpenStack, what should I do? OpenStack does not support DB2 by default.

Reply content: 1, language advice: Learn python. OpenStack is a pure Python project, so you have to be familiar with the syntax, debugging, and invocation of Python. Like what: PDB: Base use, breakpoint, call stack LOG: Call stack printing, function import parameter printing, bottom command printing Python open source frameworks, components: such as SQLAlchemy, Django Object-oriented: Clear abstraction, inheritance, polymorphism, comp

Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn programming... Reply content: 1. language advice: learn python well. OpenStack is a pure python project, so you mu

API front-end servicesEach OpenStack component may contain several sub-services, which must have an API service that is responsible for receiving customer requests.In Nova, for example, Nova-api as a unique window to the Nova component, exposing the capabilities that Nova can provide to customers. When customers need to perform VM-related operations, they can and only send REST requests to NOVA-API. Customers here include end users, command lines, and

shared storage services for OpenStack. Following a brief introduction to Ceph distributed storage, Ceph is a rapidly emerging open source distributed storage system that has several features:1. Multi-copy feature, which is similar to the redundancy of the RAID1 features to ensure data security, can be 1 copies of 2 copies of 3 copies of multiple copies;2. Copy the cow feature when writing, that is, when th

650) this.width=650; "title=" "src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20160403-1459686062320040176.jpg "style=" Border:none;color:rgb (51,51,51); font-family: ' Microsoft Yahei '; font-size:14px;line-height:26px; "/>Before learning about OpenStack services, let's build an experimental environment first.There is no doubt that OpenStack, which can see the touch and allow us to toss

API Front-end servicesEach OpenStack component may contain several sub-services, which must have an API service that is responsible for receiving customer requests.In Nova, for example, Nova-api as a unique window to the Nova component, exposing the capabilities that Nova can provide to customers.When customers need to perform VM-related operations, they can and only send REST requests to NOVA-API.Customers here include end users, command lines, and o

Installing openstack through an external network may require a large amount of events to be downloaded from the RPM package, and may be unable to access the external network environment at some customer sites, for convenient and quick installation, you can build a yum source by yourself. This article makes a complete summary from the creation of the yum source, to the installation of a single openstack node

During the installation process, a source problem was encountered and the Web page for the package could not be found: reopen the preloaded source address, open the Epel-openstack-havana.repo file, and display the following:# Place this file in Your/etc/yum.repos.d/directory[openstack-havana]name=openstack Havana Repository for EPEL 6baseurl= http://repos.fedorap