Image renderer refers to localhost

What happened:

Image-renderer failed to render an image

What you expected to happen:

Obviously, I wanted it to render an image

How to reproduce it (as minimally and precisely as possible):

The root of the issue is that it somehow refers to localhost instead of referring to the domain name configured. And as it tries to use https, it obviously fails because the certificate wasn’t issued for localhost.

Anything else we need to know?:

The exact error is :

Rendering failed: Error: net::ERR_CERT_COMMON_NAME_INVALID at https://localhost:3000/d-solo/qVtkD6tMz/chaotic-bot?orgId=1&panelId=8&width=1000&height=500&tz=Europe%2FParis&render=1

Environment:

• Grafana Image Renderer version: 2.0.0
• Grafana version: 7.3.0
• Installed plugin or remote renderer service: Image renderer is the only additional plugin installed
• OS Grafana Image Renderer is installed on: Ubuntu 20.04.1
• User OS & Browser: Accessed Under Windows / Firefox

[UlrichThiess]

The message net::ERR_CERT_COMMON_NAME_INVALID indicates that the certificate is not correct.

This can be solved by the following entry in the INI file:

[plugin.grafana-image-renderer] rendering_ignore_https_errors = true

[AlexHeylin]

I also see this problem. Setting

[plugin.grafana-image-renderer]
rendering_ignore_https_errors = true

Does work around the issue, but the real fix needs to be stop using localhost and use the FQDN specified in Grafana config.