Pollster YML configuration :
---
- name: "dynamic.radosgw.usage"
sample_type: "gauge"
unit: "B"
value_attribute: "total.size"
url_path: http://<FQDN>/object-store/admin/usage
module: "awsauth"
authentication_object: "S3Auth"
authentication_parameters: <ACCESS_KEY>,<SECRET_KEY>,<FQDN>/object-store/
user_id_attribute: "user"
project_id_attribute: "user"
resource_id_attribute: "user"
response_entries_key: "summary"
ACCESS_KEY and SECRET_KEY have been created with “openstack ec2 credentials create”.
Ceilometer central is deployed with OSA and it uses awsauth.py module.
From: Rafael Weingärtner <rafaelweingartner@gmail.com>
Sent: mercredi, 28 septembre 2022 02:01
To: Taltavull Jean-François <jean-francois.taltavull@elca.ch>
Cc: openstack-discuss <openstack-discuss@lists.openstack.org>
Subject: Re: [Ceilometer] Pollster cannot get RadosGW metrics when API endpoints are based on URL instead of port number
EXTERNAL MESSAGE - This email comes from outside ELCA companies.
Can you show your YML configuration? Also, did you install the AWS authentication module in the container/host where Ceilometer central is running?
On Mon, Sep 26, 2022 at 12:58 PM Taltavull Jean-François <jean-francois.taltavull@elca.ch> wrote:
Hello Rafael,
Thanks for the information about ceilometer patches but for now I’m testing with the credentials in the dynamic pollster config file. I will use barbican when I push all this to production.
The keystone authentication performed by the rados gw with the credentials provided by ceilometer still does not work. I wonder if this could be a S3 signature version issue on ceilometer side, that is on S3 client side. This kind of issue exists with the s3 client “s3cmd” and you have to add “—signature-v2” so that “s3cmd” works well.
What do you think ? Do you know which version of S3 signature ceilometer uses while authenticating ?
From: Rafael Weingärtner <rafaelweingartner@gmail.com>
Sent: mercredi, 7 septembre 2022 19:23
To: Taltavull Jean-François <jean-francois.taltavull@elca.ch>
Cc: openstack-discuss <openstack-discuss@lists.openstack.org>
Subject: Re: [Ceilometer] Pollster cannot get RadosGW metrics when API endpoints are based on URL instead of port number
EXTERNAL MESSAGE - This email comes from outside ELCA companies.
Jean, there are two problems with the Ceilometer. I just opened the patches to resolve it:
- https://review.opendev.org/c/openstack/ceilometer/+/856305
Without these patches, you might have problems to use Ceilometer with Non-OpenStack dynamic pollsters and barbican credentials.
On Wed, Aug 31, 2022 at 3:55 PM Rafael Weingärtner <rafaelweingartner@gmail.com> wrote:
It is the RGW user that you have. This user must have the role that is needed to access the usage feature in RGW. If I am not mistaken, it required an admin user.
On Wed, Aug 31, 2022 at 1:54 PM Taltavull Jean-François <jean-francois.taltavull@elca.ch> wrote:
Thanks to your help, I am close to the goal. Dynamic pollster is loaded and triggered.
But I get a “Status[403] and reason [Forbidden]” in ceilometer logs while requesting admin/usage.
I’m not sure to understand well the auth mechanism. Are we talking about keystone credentials, ec2 credentials, Rados GW user ?...
For now, in testing phase, I use “authentication_parameters”, not barbican.
-JF
From: Rafael Weingärtner <rafaelweingartner@gmail.com>
Sent: mardi, 30 août 2022 14:17
To: Taltavull Jean-François <jean-francois.taltavull@elca.ch>
Cc: openstack-discuss <openstack-discuss@lists.openstack.org>
Subject: Re: [Ceilometer] Pollster cannot get RadosGW metrics when API endpoints are based on URL instead of port number
EXTERNAL MESSAGE - This email comes from outside ELCA companies.
Yes, you will need to enable the metric/pollster to be processed. That is done via "polling.yml" file. Also, do not forget that you will need to configure Ceilometer to push this new metric. If you use Gnocchi as the backend, you will need to change/update the gnocchi resource YML file. That file maps resources and metrics in the Gnocchi backend. The configuration resides in Ceilometer. You can create/define new resource types and map them to specific metrics. It depends on how you structure your solution.
P.S. You do not need to use "authentication_parameters". You can use the barbican integration to avoid setting your credentials in a file.
On Tue, Aug 30, 2022 at 9:11 AM Taltavull Jean-François <jean-francois.taltavull@elca.ch> wrote:
Hello,
I tried to define a Rados GW dynamic pollster and I can see, in Ceilometer logs, that it’s actually loaded. But it looks like it was not triggered, I see no trace of ceilometer connection in Rados GW logs.
My definition:
- name: "dynamic.radosgw.usage"
sample_type: "gauge"
unit: "B"
value_attribute: "total.size"
url_path: http://<FQDN>/object-store/swift/v1/admin/usage
module: "awsauth"
authentication_object: "S3Auth"
authentication_parameters: xxxxxxxxxxxxx,yyyyyyyyyyyyy,<FQDN>
user_id_attribute: "admin"
project_id_attribute: "admin"
resource_id_attribute: "admin"
response_entries_key: "summary"
Do I have to set an option in ceilometer.conf, or elsewhere, to get my Rados GW dynamic pollster triggered ?
-JF
From: Taltavull Jean-François
Sent: lundi, 29 août 2022 18:41
To: 'Rafael Weingärtner' <rafaelweingartner@gmail.com>
Cc: openstack-discuss <openstack-discuss@lists.openstack.org>
Subject: RE: [Ceilometer] Pollster cannot get RadosGW metrics when API endpoints are based on URL instead of port number
Thanks a lot for your quick answer, Rafael !
I will explore this approach.
Jean-Francois
From: Rafael Weingärtner <rafaelweingartner@gmail.com>
Sent: lundi, 29 août 2022 17:54
To: Taltavull Jean-François <jean-francois.taltavull@elca.ch>
Cc: openstack-discuss <openstack-discuss@lists.openstack.org>
Subject: Re: [Ceilometer] Pollster cannot get RadosGW metrics when API endpoints are based on URL instead of port number
EXTERNAL MESSAGE - This email comes from outside ELCA companies.
You could use a different approach. You can use Dynamic pollster [1], and create your own mechanism to collect data, without needing to change Ceilometer code. Basically all hard-coded pollsters can be converted to a dynamic pollster that is defined in YML.
On Mon, Aug 29, 2022 at 12:51 PM Taltavull Jean-François <jean-francois.taltavull@elca.ch> wrote:
Hi All,
In our OpenStack deployment, API endpoints are defined by using URLs instead of port numbers and HAProxy forwards requests to the right bakend after having ACLed the URL.
In the case of our object-store service, based on RadosGW, the internal API endpoint is "https://<FQDN>/object-store/swift/v1/AUTH_<tenant_id>"
When Ceilometer RadosGW pollster tries to connect to the RadosGW admin API with the object-store internal endpoint, the URL becomes https://<FQDN>/admin, as shown by HAProxy logs. This URL does not match any API endpoint from HAProxy point of view. The line of code that rewrites the URL is this one: https://opendev.org/openstack/ceilometer/src/branch/stable/wallaby/ceilometer/objectstore/rgw.py#L81
What would you think of adding a mechanism based on new Ceilometer configuration option(s) to control the URL rewriting ?
Our deployment characteristics:
- OpenStack release: Wallaby
- Ceph and RadosGW version: 15.2.16
- deployment tool: OSA 23.2.1 and ceph-ansible
Best regards,
Jean-Francois
--Rafael Weingärtner
--Rafael Weingärtner
--Rafael Weingärtner
--Rafael Weingärtner
--Rafael Weingärtner