Centos official base docker image running out of space
I thought docker images use the underlying filesystem to create their own filesystem. However, I am installing some packages through "rvm requirements" that results in an error.
The error is Insufficient space in download directory /var/cache/yum/x86_64/6/centosplus/packages
I wonder whats the problem here.
I experienced this exact error on Windows (8.1) while trying to run a new Dockerfile with docker-machine. The fix for me was to remove all dangling docker images to free up some space on the docker VM.
Executing docker ps -qa will list all dangling images:
fa2c0a66ee94
e815198f0d6e
...
7e925483e67f
e524267e8a9a
Executing docker rm $(docker ps -qa) will reclaim the space used by dangling images:
$ docker rm $(docker ps -qa)
fa2c0a66ee94
e815198f0d6e
...
7e925483e67f
e524267e8a9a
Check the disk space available on the host machine/VM for directory /tmp using df -h and ls -la /.
If you are using docker-machine (OSX), then you might want to create a larger host VM with docker-machine create --driver virtualbox --virtualbox-disk-size 50000 [name].