How do I undo the command $ eval “$(docker-machine env blog)”

Question

I think that command redirected $ docker commands to the docker machine. Now all my docker commands are giving me an error FATA[0000] Couldn\'t read ca cert.

Answer 1

I had been searching for an answer to this for quite awhile. Shortly after posting the question on stackoverflow I realized typing in to the terminal the export commands docker gives on startup resolved my issue.

To connect the Docker client to the Docker daemon, please set:
export DOCKER_HOST=tcp:// some IP address
export DOCKER_CERT_PATH= some file path
export DOCKER_TLS_VERIFY=1

Answer 2

What you are looking for is:

eval "$(docker-machine env -u)"

It will unset the DOCKER_* variables.

For the record, here's the output of docker-machine env -u:

unset DOCKER_TLS_VERIFY
unset DOCKER_HOST
unset DOCKER_CERT_PATH
unset DOCKER_MACHINE_NAME

Answer 3

You could also restart your shell. This will drop the variables that minkube docker-env exports.

Answer 4

I can see that this is an old post but if someone else runs into this issue, who is new to docker like me this can help. By typing:

eval $(docker-machine env nameOfVm) 

you are setting your current shell to use docker in that docker-machine. You can check if you type docker-machine ls that under active tab, that status is changed from - to * for that machine. You can also check which machine is active by running docker-machine active.

If you want to undo eval, just run:

eval $(docker-machine env -u)

and it will unset variables for active machine (You don't have to specify the name of the machine). This is all under macOS but I think it should be same on linux as well. You can read more about this here: Docker documentation: docker-machine env

Answer 5

All you have to do is run

docker-machine env machine-name

Then, copy and run the last segment in the output to set or remove the env variables.

Which looks like this in Windows :

eval $("C:\Program Files\Docker Toolbox\docker-machine.exe" env machine-name)

If it's set already, docker adds a "-u" at the tail to make the task easy.

like this in Windows :

eval $("C:\Program Files\Docker Toolbox\docker-machine.exe" env -u)

That's all.