How to fix docker: Got permission denied issue

Question

I am working with docker on my machine which runs ubuntu OS. Normally I have to type in sudo before any docker commands:

$ sudo docker run hello-world

It's a bit annoying to use sudo every time I use docker commands, Can I write commands like given below?

$ docker run hello-world

My question is, how can i write commands without sudo without getting this error ? :

docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post http://%2Fvar%2Frun%2Fdocker.sock/v1.35/containers/create: dial unix /var/run/docker.sock: connect: permission denied.See 'docker run --help'.

Answer 1

I think what you are looking for is running docker engine as non-root but without using root access. For this you will have to add it to docker group:

But before that you will have to create a docker group if it already does not there :

$ sudo groupadd docker

Then add the user you are using to this docker group.

$ sudo usermod -aG docker $USER

then Logout and then login again and then run docker 

$ newgrp docker

You will now be able to use docker commands without typing sudo.

Hope that helps :)

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