On systems that supports reflinking (i.e. btrfs) this means the dummy
backend is much faster at copying files and will be sharing file data in
a CoW fashion.
On my (btrfs) system this makes "docker run ubuntu echo hello world" go
from about 3 seconds to about 1 second. Not instant, but clearly better.
cp --reflink=auto is availible since coreutils 7.5 (around 2009), so this
seems pretty ok to rely on.
cp is also better at preserving file metadata than tar, so for instance
it will copy xattrs.
Upstream-commit: 242fd4b3ef32b5a20135d6031040bcf099b5df4e
Component: engine
For people who toggle drivers we want to save the driver used
to create a container so that if the driver changes we can skip
loading the container and it should not show up in docker ps
Upstream-commit: 4908d7f81db91f4a28be152ec0cacb0cf711b403
Component: engine
It makes no sense to use the aufs or devicemapper drivers for volumes.
The aufs one is perhaps not a big problem, but the devicemapper one
certainly is. It will be unnecessarily using a dm
blockdevice-over-loopback with a limited size base FS.
This just hardcodes the driver to be the dummy, perhaps in the future
we can have other drivers that make sense for the volumes.
Upstream-commit: 10f23a94f6daaf03c684937daea67d10205b4b89
Component: engine
This adds a generic Status call in the Driver api and
implements if for the devicemapper backend.
The status is an array of key/value strings rather than a map so that
we can guarantee some static order of the docker info output.
Upstream-commit: 243843c0787ce2b56c8bbf72a2d4bd7604e84b2e
Component: engine
This adds 3 tests:
Verify that ChangesDirs() returns nothing when run on a copy of the
same directory.
Verify that various mutations of a directory get reported with the
right changes.
Verify that ExportChanges() + ApplyLayer() of the above mutation gets
an identical directory.
Unfortunately the last test is disabled because it fails in multiple
ways atm. But I want to get it in so that we can fix it.
Upstream-commit: f7238f94e8b5b31e78360c342676ca84b5984806
Component: engine
This code was duplicated in two places, one which was unused. This
syncs the code and removes the unused version.
Upstream-commit: d69a6a20f0b6657821638ee591920d071a784b0e
Component: engine
rmTargetPath can be a directory, so we have to use RemoveAll() or we
will fail to whiteout non-empty directories.
Upstream-commit: 006e2a600ce689770ba2c49805bc4f634976f365
Component: engine
Updated documentation footer to say "Docker Inc." instead of dotCloud. And added Read the Docs.
Upstream-commit: 61abc3f8ac89bd3b238a7ceaf26fa004c462848b
Component: engine
update the API docs to reflect the change in the case of the /index/search reposnse
Upstream-commit: 8e71391572adeaa6e5d0f980e71168ba8ef98b46
Component: engine
add a little more info about the limitations of ADD wrt ../ and docker build
Upstream-commit: 077c2496ed39b6682924b1da9d388e5a21453310
Component: engine
When getting the private port used by a container using
`docker port` returns 0.0.0.0:49353, stript just the portnumber of the address with awk to used it in the rest of the example code.
Upstream-commit: f5e6c2d060d5eb052929c4ab14bf3256b260afc4
Component: engine
