armhf docker container not starting on arm64 with volume

[phdelodder]

When I try to start the container I get the following error:

lvl=crit msg="Failed to parse /etc/grafana/grafana.ini, open /etc/grafana/grafana.ini: permission denied%!(EXTRA []interface {}=[])"

using fg2it/grafana-armhf:v5.0.3

[fg2it]

@phdelodder Thanks for reporting. Could you provide some details :

• hardware used
• docker version
• docker command line used
• more log lines

The title of the issue mentions 'arm64', but the docker I provide (currently) only support armhf (armv7). So that could be the reason, could you try to install the aarch64 deb package ?

Another interesting point is the perm inside de container. Could you check that ?

$ docker run -ti --entrypoint /bin/bash fg2it/grafana-armhf:v5.0.3
[inside docker]$ ls -l /etc/grafana
total 24
-rw-r----- 1 root grafana 13660 Mar 17 02:42 grafana.ini
-rw-r----- 1 root grafana  3468 Mar 17 02:42 ldap.toml
drwxr-xr-x 4 root grafana  4096 Mar 22 19:45 provisioning

If permissions don't allow read try to fix that and run to confirm it is indeed the problem :

[inside docker]$ chmod +r /etc/grafana/grafana.ini
[inside docker]$ /run.sh

You can also try to increase log level

[inside docker]$ /run.sh cfg:default.log.level="debug"

or

$ docker run -ti --rm fg2it/grafana-armhf:v5.0.3 cfg:default.log.level="debug"

[phdelodder]

Thanks for the followup. But I restarted the docker container and now it works. I have no more explanation for it.

[fg2it]

Good, I guess. Could you tell me the hardware and os you are using ?

[phdelodder]

I'm running rock64 with dietpi. I can reproduce it it occurs always the first time you create the container, when I stop the container and start it again the issue is gone.

[fg2it]

That is strange. What version of docker are you using ? How do you start your container ?

[phdelodder]

Docker version 17.12.1-ce, build 7390fc6
docker-compose version 1.8.0, build unknown

[fg2it]

Do you mount any volume in your container ? How do you start it ? It would help if you could check the permissions, before and after launching grafana, something along :

$ docker run -ti --entrypoint /bin/bash fg2it/grafana-armhf:v5.0.3
[inside docker]$ ls -l /etc/grafana
[inside docker]$ /run.sh
#interrupt if needed with ctrl+c
[inside docker]$ ls -l /etc/grafana

[phdelodder]

yes I mounted the a custom volume, without the volume it works like a charm

[fg2it]

[TL;DR]

• I invite you to provide more diagnostics on what you are facing
• my build isn't responsible (except to have chosen to follox the official one)
• we can expect to have this solve soon

[long story]
So custom volume is very likely the reason. That is why I was asking for command line in my first post...
There are some issues with the current handling of permissions with the official images (with I follow). Depending on how you do things, it could have been fixed by c8bbfc7 that tracks grafana/grafana-docker@291c817 (and I would have think so) or still be open (that seems to be the case since fg2it/grafana-armhf:v5.0.3 includes this change; more diagnostics would help understanding what is happening and ask Grafana staff to fix).
The official docker is expected to change with v5.1.0 release thanks to grafana/grafana-docker#146, that should solve these kinds of problem.