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Starting eclipse che with parameters in docker outputs "You are missing a mandatory parameter"

See original GitHub issue

Reproduction Steps:

I am trying to run eclipse che following the documentation. Upon providing the command :

docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock -v /tmp/docker eclipse/che start

Always provides this output:

INFO: Welcome to Eclipse Che!
INFO:
INFO: You are missing a mandatory parameter:
INFO:    1. Mount 'docker.sock' for accessing Docker with unix sockets.
INFO:    2. Or, set DOCKER_HOST to Docker's daemon location (unix or tcp).
INFO:
INFO: Mount Syntax:
INFO:    Start with 'docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock' ...
INFO:
INFO: DOCKER_HOST Syntax:
INFO:    Start with 'docker run -it --rm -e DOCKER_HOST=<daemon-location> ...'

Which I do not understand as I am explicitly providing the same parameters.

OS and version:

Ubuntu 16.04

I am new to docker. Point to note that I am not the sudo user, my user just have been added to docker group.

Issue Analytics

State:
Created 7 years ago
Comments:36 (14 by maintainers)

Top GitHub Comments

20reactions

Virtlinkcommented, Feb 1, 2017

I have the same issue when I follow the instructions here:

$ docker run -it eclipse/che start

INFO: Welcome to Eclipse Che!
INFO: 
INFO: You are missing a mandatory parameter:
INFO:    1. Mount 'docker.sock' for accessing Docker with unix sockets.
INFO:    2. Or, set DOCKER_HOST to Docker's daemon location (unix or tcp).
INFO: 
INFO: Mount Syntax:
INFO:    Start with 'docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock' ...
INFO: 
INFO: DOCKER_HOST Syntax:
INFO:    Start with 'docker run -it --rm -e DOCKER_HOST=<daemon-location> ...'

Neither using sudo, nor using nightly, nor sudo chmod 777 /var/run/docker.sock makes a difference. The environment variable $DOCKER_HOST is undefined in my shell.

However, this full command does work:

$ docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock \
  -v ~/test/:/data eclipse/che start

OS: Linux Mint 18.1 Cinnamon 64-bit Docker: 1.13.0 build 49bf474 (info)

4reactions

TylerJewellcommented, Feb 1, 2017

@virtlink - your execution is expected. We already require docker sock or docker host to be added to run. We provide the simpler syntax in our docs to simplify how people get started. You provide the simple syntax first and then we guide you to add the other mounts.