Re: [Openstack] Nova metadata service
Link related to my doubt: http://docs.openstack.org/trunk/openstack-compute/admin/content/metadata-service.html Regards, JuanFra. ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
[Openstack] Nova metadata service
Hi guys! After looking for in the mailing list and docs, I honestly still don't understand what really is nova-api-metadata. it's a mandatory service in a multi-host deployment? it's only related to EC2? Thanks! Regards, JuanFra. ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Nova metadata service
Its really just a binary that activates https://github.com/openstack/nova/blob/master/nova/api/metadata/handler.py#L100 Its a way to allow for a VM to get metadata about itself and any userdata (of which users may have provided) on boot. Said feature is not just connected to ec2, but provides a generic mechanism for getting this type of data to an instance. The ec2 folks I believe are just the 'originators' of said concept and that’s how it got named initially. From: JuanFra Rodriguez Cardoso juanfra.rodriguez.card...@gmail.commailto:juanfra.rodriguez.card...@gmail.com Date: Monday, December 10, 2012 5:10 PM To: Openstack openstack@lists.launchpad.netmailto:openstack@lists.launchpad.net Subject: [Openstack] Nova metadata service Hi guys! After looking for in the mailing list and docs, I honestly still don't understand what really is nova-api-metadata. it's a mandatory service in a multi-host deployment? it's only related to EC2? Thanks! Regards, JuanFra. ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Nova metadata service
It is not a necessity, but it is very useful. Also look at config drive. -Matt On Mon, Dec 10, 2012 at 5:33 PM, Joshua Harlow harlo...@yahoo-inc.comwrote: Its really just a binary that activates https://github.com/openstack/nova/blob/master/nova/api/metadata/handler.py#L100 Its a way to allow for a VM to get metadata about itself and any userdata (of which users may have provided) on boot. Said feature is not just connected to ec2, but provides a generic mechanism for getting this type of data to an instance. The ec2 folks I believe are just the 'originators' of said concept and that’s how it got named initially. From: JuanFra Rodriguez Cardoso juanfra.rodriguez.card...@gmail.com Date: Monday, December 10, 2012 5:10 PM To: Openstack openstack@lists.launchpad.net Subject: [Openstack] Nova metadata service Hi guys! After looking for in the mailing list and docs, I honestly still don't understand what really is nova-api-metadata. it's a mandatory service in a multi-host deployment? it's only related to EC2? Thanks! Regards, JuanFra. ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp ___ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
Re: [Openstack] Nova metadata service
Hello,
nova-api-metada service is an optional nova daemon that implements an HTTP
interface for retrieving metadata you associate to an instance at boot time
(see --user-data parameter).
Provided that you have installed and correctly configured it, try the
following sequence for better understanding.
Hope it helps,
Marco.
*At the client console, create a file and launch an instance with the
following commands:*
* *
*
*
*$ echo 'This is user data!' myFile.txt*
*$ nova boot testUserData --image=19d24df6-be35-40fe-b61d-8cf381abf1f7
--flavor=1 --user-data myFile.txt*
+-+--+
| Property| Value
|
+-+--+
| OS-DCF:diskConfig | MANUAL
|
| OS-EXT-SRV-ATTR:host| None
|
| OS-EXT-SRV-ATTR:hypervisor_hostname | None
|
| OS-EXT-SRV-ATTR:instance_name | instance-011c
|
| OS-EXT-STS:power_state | 0
|
| OS-EXT-STS:task_state | scheduling
|
| OS-EXT-STS:vm_state | building
|
| accessIPv4 |
|
| accessIPv6 |
|
| adminPass | rXQ37SMMmu7D
|
| config_drive|
|
| created | 2012-11-14T17:11:47Z
|
| flavor | m1.tiny
|
| hostId |
|
| id |
f87e825b-e31f-4918-89ca-0fab3645cf44 |
| image | cirros-0.3.0-x86_64-uec
|
| key_name| None
|
| metadata| {}
|
| name| testUserData
|
| progress| 0
|
| security_groups | [{u'name': u'default'}]
|
| status | BUILD
|
| tenant_id | 43b38bc900c14082a14cda212c324f0a
|
| updated | 2012-11-14T17:11:47Z
|
| user_id | d3e8a1682a064f01ba80c45c28e6af6e
|
+-+--+
*To retrieve the information from the metadata service, connect to the
instance and submit the following commands:*
* *
*
*
*$ wget http://169.254.169.254/latest/user-data -O-*
Connecting to 169.254.169.254 (169.254.169.254:80)
This is user data!
-100%
||
19 --:--:-- ETA
*Note: the command for retrieving data from the metadata service may vary
both in the address of the service (here we used the default configuration
address 169.254.169.254) and in the format of the wget command (depending
on the OS of the image).*
* *
On Tue, Dec 11, 2012 at 7:29 AM, Matt Joyce matt.jo...@cloudscaling.comwrote:
It is not a necessity, but it is very useful. Also look at config drive.
-Matt
On Mon, Dec 10, 2012 at 5:33 PM, Joshua Harlow harlo...@yahoo-inc.comwrote:
Its really just a binary that activates
https://github.com/openstack/nova/blob/master/nova/api/metadata/handler.py#L100
Its a way to allow for a VM to get metadata about itself and any userdata
(of which users may have provided) on boot.
Said feature is not just connected to ec2, but provides a generic
mechanism for getting this type of data to an instance.
The ec2 folks I believe are just the 'originators' of said concept and
that’s how it got named initially.
From: JuanFra Rodriguez Cardoso juanfra.rodriguez.card...@gmail.com
Date: Monday, December 10, 2012 5:10 PM
To: Openstack openstack@lists.launchpad.net
Subject: [Openstack] Nova metadata service
Hi guys!
After looking for in the mailing list and docs, I honestly still don't
understand what really is nova-api-metadata.
it's a mandatory service in a multi-host deployment? it's only related to
EC2?
Thanks!
Regards,
JuanFra.
___
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