Docker: Invalid Reference Format - trying to execute Docker run command

[begunfx]

I'm having trouble trying to build the docker container for this project. I think it might be because I have special characters in my PIA password. What is the proper way to handle the special characters when using the docker run command? I tried escaping them with a backslash but no luck. Any help would be greatly appreciated. My run command is below (username and password redacted).

docker run --cap-add=NET_ADMIN -d \ --name=transmission \ -v /volume1/docker/transmission/data:/data \ -v /volume1/docker/transmission/config:/config \ -e OPENVPN_PROVIDER=PIA \ -e OPENVPN_CONFIG=us_california, us_las_vegas, us_seattle, us_west \ -e OPENVPN_USERNAME=xxxxx \ -e OPENVPN_PASSWORD=xxxxx \ -e LOCAL_NETWORK=192.168.1.0/24 \ -e TZ=America/Los_Angeles \ --log-driver json-file \ --log-opt max-size=10m \ --restart always \ -p 9091:9091 \ haugene/transmission-openvpn

[pkishino]

you can try this:
https://haugene.github.io/docker-transmission-openvpn/faq/#send_username_and_password_via_a_file
https://haugene.github.io/docker-transmission-openvpn/config-options/#required_environment_options

[begunfx]

Thanks for the response @pkishino. I moved the credentials to a file in /config and set the env variable as described, but I'm still getting the following error:

Current status: 125 (Interrupted)
Standard output/error:
docker: invalid reference format.

Maybe it's not the special characters in the password field?
I can try setting PUID and PGID, but I'm not sure that will make much of a difference. Any other suggestions? I'm running on a Synology DSM 7+. Thanks!

[begunfx]

Okay I figured it out. It was the spaces between the different PIA servers that kept throwing that error. On a side note: I switched my credentials to a file, but was getting a special character error using this example from your link:

$ docker run --cap-add=NET_ADMIN -d
-v /your/storage/path/:/data
-v ./openvpn-credentials.txt:/config/openvpn-credentials.txt
-e OPENVPN_PROVIDER=PIA
-e OPENVPN_CONFIG=france
-e OPENVPN_USERNAME=None
-e OPENVPN_PASSWORD=None
-e LOCAL_NETWORK=192.168.0.0/16
--log-driver json-file
--log-opt max-size=10m
-p 9091:9091
haugene/transmission-openvpn

for the credentials, I was able to solve it by removing the relative path "./openvpn-credentials.txt" and using the explicit path: "/your/storage/path/config/openvpn-credentials.txt".

[pkishino]

Ah, yes, for volume mounts it needs to be absolute.. for configs, no space should works right?

[begunfx]

Correct. I had to change the credentials to be absolute and that fixed it. :-)