We don’t get any logs really at the time this happens (our logs are set to Info level).
The interesting thing is when we run the notification test in Grafana, we get this dummy image that I posted in my original post.
But we don’t get any image on real notifications after that.
What I don’t understand is how Mattermost is supposed to get these images, as we’re not using an external image service.
Our setup is the following :
we have an incoming webhook in Mattermost,
we have a slack type notification channel set in Grafana, with the following setup :
Images should be supported in message attachments with a image_url parameter.
Would you be able to help share the payload used to post the attachment by your Grafana integration? Perhaps we’ll be able to spot something that prevents the image from being included.