docker ps on mac is returning Cannot connect to the Docker daemon. Is 'docker -d' running on this host?

[phuongnd08]

docker ps on mac is returning Cannot connect to the Docker daemon. Is 'docker -d' running on this host?

[phuongnd08]

Hmm, that's weird. Doing boot2docker shellinit prints some variables but it does not apply to current shell. I copy these variables to ~/.bashrc and docker is working properly now. Here's my variables:

    export DOCKER_HOST=tcp://192.168.59.103:2376
    export DOCKER_CERT_PATH=/my/home/.boot2docker/certs/boot2docker-vm
    export DOCKER_TLS_VERIFY=1

[SvenDowideit]

@phuongnd08 you need to run $(boot2docker shellinit) for it to be applied to your current bash

[andrey-vyatkin]

exporting DOCKER_TLS_VERIFY=1 solved the problem, but boot2docker shellinit does not return anything about DOCKER_TLS_VERIFY

$ boot2docker shellinit
Writing /Users/avyatkin/.docker/boot2docker-vm/ca.pem:
Writing /Users/avyatkin/.docker/boot2docker-vm/cert.pem:
Writing /Users/avyatkin/.docker/boot2docker-vm/key.pem:
export DOCKER_HOST=tcp://192.168.59.103:2376
export DOCKER_CERT_PATH=/Users/avyatkin/.docker/boot2docker-vm

[spockz]

If you do not perform $(boot2docker shellinit) the pem files are not written at all giving a different error. So be sure the pem files exist and match.

[hyperfocus1338]

The issue was with my .bash_profile. It should be like this:

export DOCKER_HOST=tcp://192.168.99.100:2376
export DOCKER_MACHINE_NAME=default
export DOCKER_TLS_VERIFY=1
export DOCKER_CERT_PATH=/Users/username/.docker/machine/machines/default