Hi,

you mixed arguments to docker run:

1. you don't need -it
2. even if you'd need, it is at the wrong place, should be before the image name. (after the image name, it is passed as arguments to the current entrypoint or as a superseed for cmd.
3. you used the wrong name for the image

This should work:

docker run --name rocketchat --link rocketchatdb -d rocket.chat

If you have a runngin mongodb with the name rocketchatdb. (I close the issue because I'm sure it will solve it ;) )

from docker.official.image.

Unfortunately, it did not solve the issue... :/

docker run --name rocketchat --link rocketchatdb -d rocket.chat

Unable to find image 'rocket.chat:latest' locally
latest: Pulling from library/rocket.chat
709507467581: Pull complete
8c59ab874855: Pull complete
d4f67d857870: Pull complete
e07234a19e6c: Pull complete
10fde2a2f3ee: Pull complete
5a506bbc1b6f: Pull complete
9cc9fdcecba1: Pull complete
02cf92cce9e8: Pull complete
0ab1b987161e: Pull complete
0e1b1f1bb12c: Pull complete
Digest: sha256:719efbb59fd52379b91d294b13b39d8a14b06b3def47e3dd5b160563a423f5ae
Status: Downloaded newer image for rocket.chat:latest
Error response from daemon: Conflict. The name "rocketchat" is already in use by container e7099b4a0723. You have to remove (or rename) that container to be able to reuse that name.

18:17:57  ✘ ⚡  /data 

docker rm rocketchat

rocketchat

18:18:08  ⚡  /data 

docker run --name rocketchat --link rocketchatdb -d rocket.chat

00f79b385934f4620086c0953c5f02036b59b954358c1a3f3bbf21cfb6d89652

18:18:17  ⚡  /data 

docker ps

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
1582f0c0ac95 mongo "/entrypoint.sh --sma" 22 hours ago Up 22 hours 27017/tcp rocketchatdb

18:18:20  ⚡  /data 

from docker.official.image.

Did you read the error message?

Error response from daemon: Conflict. The name "rocketchat" is already in use by container e7099b4a0723. You have to remove (or rename) that container to be able to reuse that name.

It means a container is already running with that name. You need to stop it and remove it first.

I let you read the docker documentation to understand how to do it, and more than anything, to not copy my answer without understanding with the possibility for you to loose data.

from docker.official.image.

I did just that, I removed the container first ... read it again, please.

from docker.official.image.

Arf sorry :)

try without the '-d' to see the error in your console.

from docker.official.image.

Error: failed to connect to [db:27017]

maybe the link to rocketchatdb didnt work?

from docker.official.image.

yes exactly, make sure your mongo is working well and you can connect to it from another linked container.

Once you are sure of this, please try again and report here.

from docker.official.image.

Using an external mongodb install, it works.
Thank you.

from docker.official.image.