docker build question no permission to read from

Question

I'm trying to build a docker image

I get this error

sudo docker build . -t django-demo
error checking context: 'no permission to read from '/home/benny/.ICEauthority''

any ideas why this is happening?

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ubuntu 18.04
Docker version 18.09.9

Answer 1

Create a new directory, place your Dockerfile in this new directory and then run your sudo docker build . -t django-demo command from that directory. This should solve your problem. Found related problems and solution in this external thread.

Answer 2

Generally to solve this kind of problem you should add a .dockerignore file in which you list all the files you don't want to be sent to the build's context (ie. the files that docker don't need to build your image).

In your case simply creating a .dockerignore with the following content should solve the issue :

.ICEauthority

Note that specifically in your case though, you should not run your docker build command directly from your home directory, because all the content of your home is being sent to the build's context (which is heavy, might make you run out of disk space or generate permission issues).