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7 commits

Author SHA1 Message Date
Stephen J Day
7a85579917
*: use opencontainers/go-digest package
The `digest` data type, used throughout docker for image verification
and identity, has been broken out into `opencontainers/go-digest`. This
PR updates the dependencies and moves uses over to the new type.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
2017-01-06 18:48:41 -08:00
Derek McGowan
c37bd10f8c Update layer store to sync transaction files before committing
Fixes case where shutdown occurs before content is synced to disked
on layer creation. This case can leave the layer store in an bad
state and require manual recovery. This change ensures all files
are synced to disk before a layer is committed. Any shutdown that
occurs will only cause the layer to not show up but will allow it to
be repulled or recreated without error.

Added generic io logic to ioutils package to abstract it out of
the layer store package.


Signed-off-by: Derek McGowan <derek@mcgstyle.net>
2016-08-09 11:55:17 -07:00
Derek McGowan
2c60430a3d Use describable interfaces
Replace use of foreign sources with descriptors and describable

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-06-06 17:49:34 -07:00
John Starks
05bd04350b Support layers from external URLs
This is used to support downloading Windows base images from Microsoft
servers.

Signed-off-by: John Starks <jostarks@microsoft.com>
2016-05-25 19:23:02 -07:00
Derek McGowan
caef48f4e2 Add more robust error handling on layer store creation
Add continue when layer fails on store creation
Trim whitespace from layerstore files to keep trailing space from failing a layer load

Fixes #19449

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
2016-01-19 11:17:08 -08:00
Tonis Tiigi
a8f88ef403 Parallel migration and optimizations
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2016-01-04 09:48:52 -08:00
Derek McGowan
500e77bad0 Add layer store
Layer store manages read-only and read-write layers on a union file system.
Read only layers are always referenced by content addresses.
Read-write layer identifiers are handled by the caller but upon registering
its difference, the committed read-only layer will be referenced by content
hash.

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2015-11-24 09:40:23 -08:00