I’m running Grafana in a Docker container on my NAS. Everything is fine when using http. However I fail to start the container when I setup Grafana for https, as the Certificate file can’t be found according to the Docker log.
I create a self-certificate using OpenSSL in order to use Grafana with https. I modified the docker script to overwrite the enviroment Server section for https and defined the path for the cert and key file.
INFO[12-08|12:28:50] Config overridden from Environment variable logger=settings var="GF_SERVER_PROTOCOL=https" INFO[12-08|12:28:50] Config overridden from Environment variable logger=settings var="GF_SERVER_CERT_FILE=/share/CACHEDEV2_DATA/Container/grafana/config/ssl/grafana.crt" INFO[12-08|12:28:50] Config overridden from Environment variable logger=settings var="GF_SERVER_CERT_KEY=/share/CACHEDEV2_DATA/Container/grafana/config/ssl/grafana.key"
As far as I can see, this seems to be fine, however for unknown reason the cert-file isn’t found, even it is available in the defined path.
INFO[12-08|12:28:50] HTTP Server Listen logger=http.server address=0.0.0.0:3000 protocol=https subUrl= socket= EROR[12-08|12:28:50] Stopped HTTPServer logger=server reason="Cannot find SSL cert_file at /share/CACHEDEV2_DATA/Container/grafana/config/ssl/grafana.crt"
When I check the path I see it is valid
[/share/CACHEDEV2_DATA/Container/grafana] # ls -l /share/CACHEDEV2_DATA/Container/grafana/config/ssl/grafana.crt -rw-r--r-- 1 admin administrators 1228 2019-12-08 10:55 /share/CACHEDEV2_DATA/Container/grafana/config/ssl/grafana.crt
Any idea what could be the reason for this? Could the Certificate be invalid and the error message is just misleading?
Many thanks for a hint