docker does not like naming containers uppercase single case letters

[zbanga]

Changing to a lower-case will help

[ctubio]

umf i hate grammar (https://github.com/docker/distribution/blob/master/reference/reference.go#L1) but lets try to be correct, many thanks for the report!

[ctubio]

also, many thanks for the solution 🌻

[jaNGOB]

It's still not working for me. I tried to run it a few days ago and also had the Problem with the uppercase "K". I have redone the whole process but it's still throwing an error at me because of the "k".

What else could I do?

Thank you for your help.

$ docker run -p 3000:3000 --link K-mongo:mongo --name k -d k
C:\Program Files\Docker Toolbox\docker.exe: Error response from daemon: Invalid container name (k), only [a-zA-Z0-9][a-zA-Z0-9_.-] are allowed.
See 'C:\Program Files\Docker Toolbox\docker.exe run --help'.

[ctubio]

sorry for the confusion, the image name should be k, but the container name K (you have both in lowercase), thats what worked for me:

 $ cd path/to/Dockerfile
 $ docker run -p 27017:27017 --name K-mongo -d mongo
 $ docker build -t k .
 $ docker run -p 3000:3000 --link K-mongo:mongo --name K -d k

hope this works for you too, otherwise please let me know and i promise to review the whole process carefully

[jaNGOB]

hmm, I still can't get it to work.

Im sorry to bother you with this and thanks a lot for your help

[ctubio]

Hello,
i suspect you have an old docker version, may be?
mine is:

$ docker --version
Docker version 1.10.3, build 20f81dd

maybe if you have an uptodate version, can you try to delete all images/containers/cache and try again?
i really think you put the correct commands now, so may be something that is already in there (for me K was a valid container name 2 days ago if i dont remember wrong)

[jaNGOB]

I run Docker CE and use the Docker version 17.05.0-ce, build 89658be. It's the uptodate version of Docker CE as far as I know.

I've redone everything again and it still doesn't work.

[ctubio]

well, donno why your version doesn't like single-letter names, but if so try to change K and k to longer names:

 $ cd path/to/Dockerfile
 $ docker run -p 27017:27017 --name K-mongo -d mongo
 $ docker build -t kjs .
 $ docker run -p 3000:3000 --link K-mongo:mongo --name Kjs -d kjs

or something similar, cos i think your error is just with the namings of the container

if this works better for you, let me know please and i will update the docs

[jaNGOB]

It worked. I had no problem now with Kjs. You were right, it was only because of the naming.

Thank you again for your patience and help.

[ctubio]

thanks for the report'¡ i just updated the docs 💃

[ctubio]

btw if you use GDAX, you may be interested in the last comment at #3