Webex Notification cannot carry rendered image

[bossjie]

What happened?

After installing image render and test it works(below link could see the pic).
setting via this guide, https://grafana.com/docs/grafana/latest/alerting/manage-notifications/images-in-notifications/
ps: we set upload_external_image_storage = false

It still doesn't send image when trigger from alert. enabled the debug level log, it does saved image into local disk and the images are well captured per my laptop check.
below is the log with grep.

tail -f grafana.log | grep ngalert.image
logger=ngalert.image rule_uid=vLj9q564k org_id=1 dashboard=IAGk-Z17k panel=18 t=2023-12-12T03:20:08.707811527Z level=debug msg="Requesting screenshot"
logger=ngalert.image rule_uid=vLj9q564k org_id=1 dashboard=IAGk-Z17k panel=18 t=2023-12-12T03:20:13.4600448Z level=debug msg="Took screenshot" path=/var/lib/grafana/png/3aprhGBU8tOFIHfHFeh6.png
logger=ngalert.image rule_uid=vLj9q564k org_id=1 dashboard=IAGk-Z17k panel=18 t=2023-12-12T03:20:13.460149855Z level=debug msg="Uploaded image" url=
logger=ngalert.image rule_uid=vLj9q564k org_id=1 dashboard=IAGk-Z17k panel=18 t=2023-12-12T03:20:13.463287584Z level=debug msg="Saved image" token=8dba6470-d14d-483d-b90c-a301c66b154f

does it supported via this way(running in single server with grafana and image render container), or it requires reference from cloud storage?
https://github.com/grafana/grafana/pull/58480/files#diff-24ebd0e091433750f34cd1df381b31c7933b69fe398315dfa9d8a5b2c66f0b15
https://grafana.com/docs/grafana/latest/alerting/manage-notifications/images-in-notifications/#supported-contact-points

I read this #58480
and not sure the image is supported or not.

What did you expect to happen?

image sent into webex app

Did this work before?

no, first try but it works via our webhook service

How do we reproduce it?

1. install image render, follow https://grafana.com/docs/grafana/latest/alerting/manage-notifications/images-in-notifications/
2. set contact point with roomid and bot token well for webex app
3. test send(usually in rest contact point, it carries a sample image)
   or make an alert with this contact point, this alert need set up dashboard and panel id so it could capture the image.

Is the bug inside a dashboard panel?

no

Environment (with versions)?

Grafana: 9.4.7
OS: centos 7
Browser: chrome

Grafana platform?

Docker

Datasource(s)?

No response

[bossjie]

@gotjosh Thanks for having a look. it's great that you made this entry for webex. I'm from Cisco webex.

[usmangt]

:Hi @bossjie,

Thanks for opening this issue.

Grafana's current latest stable version is 10.2.x and the version you are using is a bit older now. Also, there are numerous bug fixes and improvements had been made along the releases (see Changelog)

The recommendation would be to test this in the recent stable version and if that does not work then feel free to report it here.

[grafanabot]

We've closed this issue since it needs more information and hasn't had any activity recently. We can re-open it after you you add more information. To avoid having your issue closed in the future, please read our CONTRIBUTING guidelines.

Happy graphing!