问题
I've been reading a lot about this issue in here and other websites, but I haven't manage to find a proper solution on how to increase the images size limit which is set to 10GB by default.
A bit of background informations.
I'm building a docker container : https://bitbucket.org/efestolab/docker-buildgaffer
Which download and builds a consistent set of libraries on top of a centos image. (takes a horrible amount of time and space to build)
The problem is that every single time I try to build it I hit this error :
No space left on device
Docker version:
Docker version 1.7.1, build 786b29d
Docker Info :
Containers: 1
Images: 76
Storage Driver: devicemapper
Pool Name: docker-8:7-12845059-pool
Pool Blocksize: 65.54 kB
Backing Filesystem: extfs
Data file: /dev/loop0
Metadata file: /dev/loop1
Data Space Used: 11.28 GB
Data Space Total: 107.4 GB
Data Space Available: 96.1 GB
Metadata Space Used: 10.51 MB
Metadata Space Total: 2.147 GB
Metadata Space Available: 2.137 GB
Udev Sync Supported: false
Deferred Removal Enabled: false
Data loop file: /home/_varlibdockerfiles/devicemapper/devicemapper/data
Metadata loop file: /home/_varlibdockerfiles/devicemapper/devicemapper/metadata
Library Version: 1.02.82-git (2013-10-04)
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 3.15.9-031509-generic
Operating System: Ubuntu 14.04.2 LTS
CPUs: 8
Total Memory: 15.58 GiB
Name: hdd-XPS-15-9530
ID: 2MEF:IYLS:MCN5:AR5O:6IXJ:3OB3:DGJE:ZC4N:YWFD:7AAB:EQ73:LKXQ
Username: efesto
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
After stopping the service and nuking the /var/lib/docker folder, I've been updating by docker startup script
/lib/systemd/system/docker.service
with these flags :
ExecStart=/usr/bin/docker -d --storage-opt dm.basesize=20G --storage-opt dm.loopdatasize=256G -H fd:// $DOCKER_OPTS
and restarted docker service, but still fails with the same error.
I've also been reading that might be due to the original image I'm rely on (centos:6), which might have been built with 10GB limit.
So I rebuild the centos6 image, and used that as base for mine, but I did hit the same error.
Does anyone have a reliable way to make me able to build this docker image fully ?
If there's any other informations which might be useful, just feel free to ask.
Thanks for any reply or suggestions ! L.
.
回答1:
Thanks to the test of @user2915097, I've been updating kernel version 3.16.0, installed the kernel extras, and removed and re installed docker. the problem seems to be addressable to devicemapper, now without any change in the docker command I get:
Containers: 0
Images: 94
Storage Driver: aufs
Root Dir: /home/_varlibdockerfiles/aufs
Backing Filesystem: extfs
Dirs: 94
Dirperm1 Supported: true
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 3.16.0-45-generic
Operating System: Ubuntu 14.04.3 LTS
CPUs: 8
Total Memory: 15.58 GiB
Name: hdd-XPS-15-9530
ID: 2MEF:IYLS:MCN5:AR5O:6IXJ:3OB3:DGJE:ZC4N:YWFD:7AAB:EQ73:LKXQ
Username: efesto
Registry: https://index.docker.io/v1/
WARNING: No swap limit support
and it finally builds images > 10GB. L.
回答2:
after modifing the docker daemon startup parameters do the following
systemctl daemon-reload
systemctl stop docker
rm -rf /var/lib/docker/*
systemctl start docker
This will remove all your images, make sure you save them before
eg docker save -o something.tar.gz image_name
and reload them after starting docker
eg docker load -i something.tar.gz
来源：https://stackoverflow.com/questions/31883782/docker-and-image-size-limit