Hi Tianhua, Jay, A blueprint has already been submitted in this regard:
https://docs.google.com/document/d/1ZqW7qeyHTm9AQt28GUdfv46ui9mz09UQNvjXiewOAys/edit# We've been working to implement a generic tagging framework where tags are a first class resource and other resources can be associated with tags. Our first implementation focuses on neutron. For us at Ebay, this forms an important foundational framework to support flexible/customizable VPC architectures. A detailed design with extension/db/other changes has been drawn up and will be submitted for review to the group in the near future. Please do add your thoughts/reviews to it. Regards, Vijay On Mon, Apr 21, 2014 at 12:46 PM, Jay Pipes <jaypi...@gmail.com> wrote: > Absolutely. Feel free. > > > On Mon, Apr 21, 2014 at 4:48 AM, Huangtianhua <huangtian...@huawei.com>wrote: > >> I plan to register a blueprints in nova for record this. Can I? >> >> >> -----邮件原件----- >> 发件人: Jay Pipes [mailto:jaypi...@gmail.com] >> 发送时间: 2014年4月20日 21:06 >> 收件人: openstack-dev@lists.openstack.org >> 主题: Re: [openstack-dev] [Nova][Neutron][Cinder][Heat]Should we support >> tags for os resources? >> >> On Sun, 2014-04-20 at 08:35 +0000, Huangtianhua wrote: >> > Hi all: >> > >> > Currently, the EC2 API of OpenStack only has tags support (metadata) >> > for instances. And there has already a blueprint about to add support >> > for volumes and volume snapshots using “metadata”. >> > >> > There are a lot of resources such as >> > image/subnet/securityGroup/networkInterface(port) are supported add >> > tags for AWS. >> > >> > I think we should support tags for these resources. There may be no >> > property “metadata" for these resources, so we should to add >> > “metadata” to support the resource tags, the change related API. >> >> Hi Tianhua, >> >> In OpenStack, generally, the choice was made to use maps of key/value >> pairs instead of lists of strings (tags) to annotate objects exposed in the >> REST APIs. OpenStack REST APIs inconsistently call these maps of key/value >> pairs: >> >> * "properties" (Glance, Cinder Image, Volume respectively) >> * "extra_specs" (Nova InstanceType) >> * "metadata" (Nova Instance, Aggregate and InstanceGroup, Neutron) >> * "metadetails" (Nova Aggregate and InstanceGroup) >> * "system_metadata" (Nova Instance -- differs from "normal" metadata in >> that the key/value pairs are 'owned' by Nova, not a user...) >> >> Personally, I think tags are a cleaner way of annotating objects when the >> annotation is coming from a normal user. Tags represent by far the most >> common way for REST APIs to enable user-facing annotation of objects in a >> way that is easy to search on. I'd love to see support for tags added to >> any searchable/queryable object in all of the OpenStack APIs. >> >> I'd also like to see cleanup of the aforementioned inconsistencies in how >> maps of key/value pairs are both implemented and named throughout the >> OpenStack APIs. Specifically, I'd like to see this implemented in the next >> major version of the Compute API: >> >> * Removal of the "metadetails" term >> * All key/value pairs can only be changed by users with elevated >> privileged system-controlled (normal users should use tags) >> * Call all these key/value pair combinations "properties" -- >> technically, "metadata" is "data about data", like the size of an integer. >> These key/value pairs are just data, not data about data. >> * Identify key/value pairs that are relied on by all of Nova to be a >> specific key and value combination, and make these things actual real >> attributes on some object model -- since that is a much greater guard for >> the schema of an object and enables greater performance by allowing both >> type safety of the underlying data and removes the need to search by both a >> key and a value. >> >> Best, >> -jay >> >> >> >> _______________________________________________ >> OpenStack-dev mailing list >> OpenStack-dev@lists.openstack.org >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> _______________________________________________ >> OpenStack-dev mailing list >> OpenStack-dev@lists.openstack.org >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> > > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > >
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