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Non-management is the private cloud and public cloud, especially the public cloud, when the virtual machine is created, the user needs to configure the virtual machines, such as: Host name (hostname), key, service, etc., in OpenStack, these configuration information is divided into two categories: metadata and user data. Metadata mainly includes some common prope
"src=" http://7xo6kd.com1.z0.glb.clouddn.com/ Upload-ueditor-image-20170319-1489921528587047536.jpg "style=" border:0px;float:none;/> Our environment is Devstack,nova-api-metadata's program name is nova-api , Nova-api-metadata is merged with the regular NOVA-API service. However, there may be separate nova-api-metadata Process exists. nova.conf through parameters enabled_apis Specifies whether to e
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queries the ID of the instance, as follows:1) Locate all network subnet with the network ID and then filter out the subnet that the instance IP is located on.2) Locate the port corresponding to the instance IP in the subnet.3) Locate the corresponding instance and its ID via port.③neutron-metadata-agent adds the instance ID to the head of the HTTP request and forwards it to nova-api-metadata so that Nova-a
Storage-Cinder Provides persistent Block Storage for virtual machines. In addition to these services, some are considered to be integrated into openstack in the future. 1.4 Concept Structure The overall design goal of the openstack project is to complete a cloud operating system that can be expanded on a large scale. To achieve this goal, every service that makes up
This tutorial is based on the Ubuntu12.04 edition, and it will help readers build a openstack minimized installation. I am the top of the Wuyue, translation more use of transliteration method, so the individual words and the original discrepancy, please understand. I am not a major in English, I think the most important thing is to understand the technology, and not the four level and grind in the boring English-Chinese translation, so my goal is loya
Highly Available Concept Level Chen Ben How to Achieve Classification The ha of OpenStack virtual machine ha compare application level ha,heat ha template component ha mysql ha Three ways-master-slave synchronization, Main and Standby mode three ways of two
10. OpenStack Object Storage Service (SWIFT) configuration: I added two hard drives (SDB,SDC) to the compute node for storage, and the compute node in my build is the storage node, because the computer can't pull more virtual ... Brief introduction: There are four main components of Swift: Swift-proxy-server, Swift-account-server, Swift-container-server, Swift-object-server Swift-proxy-server (Proxy service): Externally provided object service API
In [WS Standard article] I have devoted a great part of the Ws-mex and the WS specification associated with it: Ws-policy, Ws-transfer, and WSDL, because the WCF Meta data structure system is based entirely on the relevant specifications of Ws-mex. Familiarity with these basic WS specifications is of great significance for our comprehensive and profound understanding of WCF's entire metadata architecture system. Not only for
cloud computing controller. It provides a tool for cloud deployment, including instance deployment and network management. Openstack Image Service (glance) is a storage, query, and Retrieval System for Virtual Machine images. Its restfulapi allows users to query VM image metadata and retrieve actual images through HTTP requests. Openstack Identity Service (keyst
. OpenStack Mirroring Service (glance) is a set of virtual machine image lookup and retrieval systems. It can be configured in three forms: using the OpenStack object storage mechanism to store mirroring, storing information directly using Amazon's simple storage solution (S3), or combining S3 storage with object storage as S3 access connectors. The OpenStack mi
Introduction to OpenStack Architecture analysis written in frontLearning Goals: Understand the logical relationships of OpenStack components; Understand the communication and deployment relationships of the various components of OpenStack; Understand the work flow of OpenStack; Next I will master:
OpenStack Installation Deployment Tutorial OpenStack is a free software and open source project, developed and launched by NASA and Rackspace, in collaboration with the Apache license. At the same time, OpenStack is an open-source cloud computing management platform that supports almost all types of cloud environments with the goal of delivering simple, scalable
Fuel-core-6.1-nailgun Docker restart Fuel-core-6.1-keystone Docker restart Fuel-core-6.1-rsync Docker Restart fuel-core-6.1-mcollective Docker restart FUEL-CORE-6.1-OSTF Docker Restart Fuel-core-6.1-astute Docker restart Fuel-core-6.1-rsyslog Docker restart Fuel-core-6.1-postgres Docker Restart FUEL-CORE-6.1-RABBITMQ Docker restart Fuel-core-6.1-nginx Docker restart Fuel-core-6.1-cobbler 4. Restart Neutron service 4.1 Control node Service Ope
0. FrontierAfter a period of tossing and Juno, finally installed in their own Mac version of the four node environment. In this process, spent a lot of time, encountered a lot of problems, learned a lot of knowledge, toss a lot of things that do not need to toss, this article tries to make a summary of the process.1. Initial environmentDescription1. VirtualBox Ubuntu Installation: (VirtualBox NIC configuration visible http://www.cnblogs.com/sammyliu/p/4137772.html)The 14.04 server version is ins
Summary of the mechanism provided by Model metadata and summary of model metadata At the very beginning, I have to talk about this part of the situation. At the beginning, I was dizzy by various ModelMetadata and various ModelMetadataProvider. It took me a lot of time to read several pages, after looking at a class chart, I will take a closer look at the relationships between classes and read this part ag
In the source code of the MetaDataQt plug-in, you can see a xxx. json file, which usually contains only one sentence: { #160; #160; #160; Keys: [yyy]} we can guess that the Keys in this file should specify the key words related to the plug-in. How does this. json file work? First, let's get to know MetaData of JSON and Qt plug-ins MetaData In the source code of the Qt plug-in, you can see a xxx. json fil
. Net metadata, metadataOverview Programs developed on the. net platform are compiled into the following components: IL code, resources, assembly list, and type metadata. We know that IL code is the code we have written. Resources are image files, xml files, and other files, but metadata is not clear (here, the Assembly List is
To allow access to metadata, MEF uses a new API of. NET Framework 4, namely system. Lazy Metadata can be used to pass the attributes of the exported object to the import part. The imported part can use this data to determine which export to use or collect export information without creating an export. Therefore, the import must be delayed before metadata can be
Reading directory:1. requirement background (the Model metadata setting item should be bound to the View instead of the ViewModel) 1. 1. determine the scope of the problem domain (you can use DSL to manage the problem domain, provided that the domain model is locked) 2. migrate ViewModel settings to an external configuration file (extended Model metadata provider) 2. 1. implement the
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