docker error: /var/run/docker.sock: no such file or directory

Question

I am new to docker. I have a shell script that loads data into impala and I want a docker file that runs builds an image and run the container. I am on mac, installed boot2d

Answer 1

I also got this error. Though, I did not use boot2docker but just installed "plain" docker on Ubuntu (see https://docs.docker.com/installation/ubuntulinux/).

I got the error ("dial unix /var/run/docker.sock: no such file or directory. Are you trying to connect to a TLS-enabled daemon without TLS?") because the docker daemon was not running, yet.

On Ubuntu, you need to start the service:

sudo service docker start

See also http://blog.arungupta.me/resolve-dial-unix-docker-sock-error-techtip64

Answer 2

You can quickly setup your environment using shellinit

At your command prompt execute:

$(boot2docker shellinit)  

That will populate and export the environment variables and initialize other features.

Answer 3

On my MAC when I start boot2docker-vm on the terminal using

boot2docker start

I see the following

To connect the Docker client to the Docker daemon, please set:
    export DOCKER_CERT_PATH=
    export DOCKER_TLS_VERIFY=1
    export DOCKER_HOST=tcp://:2376

After setting these environment variables I was able to run the build without the problem.

Update [2016-04-28] If you are using a the recent versions of docker you can do

eval $(docker-machine env) will set the environment

(docker-machine env will print the export statements)

Answer 4

docker pull will fail if docker service is not running. Make sure it is running by

:~$ ps aux | grep docker
root     18745  1.7  0.9 284104 13976 ?   Ssl  21:19   0:01 /usr/bin/docker -d

If it is not running, you can start it by

sudo service docker start

For Ubuntu 15 and above use

sudo systemctl start docker

Answer 5

In Linux, first of all execute sudo service docker start in terminal.

Answer 6

For boot2docker on Windows, after seeing:

FATA[0000] Get http:///var/run/docker.sock/v1.18/version: 
dial unix /var/run/docker.sock: no such file or directory.  
Are you trying to connect to a TLS-enabled daemon without TLS?

All I did was:

boot2docker start
boot2docker shellinit

That generated:

export DOCKER_CERT_PATH=C:\Users\vonc\.boot2docker\certs\boot2docker-vm
export DOCKER_TLS_VERIFY=1
export DOCKER_HOST=tcp://192.168.59.103:2376

Finally:

boot2docker ssh

And docker works again