Commit Graph

7 Commits

Author SHA1 Message Date
W. Trevor King
e1c553fee9 docs/storagedrivers.md: Update filesystem.go -> driver.go reference
Catch up after 88795e0a (Lots of various golint fixes, 2014-11-17, #1)
and 65b0d73c (Move storagedriver package to registry/storage/driver,
2015-02-10, #167).

Signed-off-by: W. Trevor King <wking@tremily.us>
2015-05-31 15:23:31 -07:00
Vincent Giersch
394eea0231 Storage Driver: Ceph Object Storage (RADOS)
This driver implements the storagedriver.StorageDriver interface and
uses Ceph Object Storage as storage backend.

Since RADOS is an object storage and no hierarchy notion, the
following convention is used to keep the filesystem notions stored in
this backend:

* All the objects data are stored with opaque UUID names prefixed
  (e.g. "blob:d3d232ff-ab3a-4046-9ab7-930228d4c164).
* All the hierarchy information are stored in rados omaps, where the
  omap object identifier is the virtual directory name, the keys in
  a specific are the relative filenames and the values the blob
  object identifier (or empty value for a sub directory).

  e.g. For the following hierarchy:

     /directory1
     /directory1/object1
     /directory1/object2
     /directory1/directory2/object3

  The omap "/directory1" will contains the following key / values:
    - "object1" "blob:d3d232ff-ab3a-4046-9ab7-930228d4c164"
    - "object2" "blob:db2e359d-4af0-4bfb-ba1d-d2fd029866a0"
    - "directory2" ""

  The omap "/directory1/directory2" will contains:
    - "object3" "blob:9ae2371c-81fc-4945-80ac-8bf7f566a5d9"

* The MOVE is implemented by changing the reference to a specific
  blob in its parent virtual directory omap.

This driver stripes rados objects to a fixed size (e.g. 4M). The idea
is to keep small objects (as done by RBD on the top of RADOS) that
will be easily synchronized accross OSDs. The information of the
original object (i.e total size of the chunks) is stored as a Xattr
in the first chunk object.

Signed-off-by: Vincent Giersch <vincent.giersch@ovh.net>
2015-05-20 01:44:34 +00:00
Mary Anthony
68c0682e00 Fixes Issue #471 with Publish
- Add sed to Dockerfile; this sed exists on publish script; breaks headings/nav in files without metadata
- Ensure sed runs over storage-driver/ subdir
- Add metadata to all the files (including specs) that don't have it; this ensures they display correctly on publish
- Implement the fix for the showing up in Github
- Update template with GITHUB IGNORES

Signed-off-by: Mary Anthony <mary@docker.com>
2015-04-30 15:39:40 -07:00
Mary Anthony
7c93c8c265 Fixing headings
Signed-off-by: Mary Anthony <mary@docker.com>
2015-04-28 15:10:52 -07:00
Ian Babrou
824e7e8ae2 docs: fixed links for storage drivers
Signed-off-by: Ian Babrou <ibobrik@gmail.com>
2015-04-24 21:57:09 +03:00
Mary Anthony
cf9b4ab5e9 Breaking out README
Adding new material
Adding in template chomped in error
Cover install/deploy in README
Adding in Stephen's comments
Fixing you tabs!
Updating with commentary from pr
Updating with last minute comments

Signed-off-by: Mary Anthony <mary@docker.com>
2015-04-09 17:50:46 -07:00
Mary Anthony
636a19b212 Retooling to allow for docs build
Adding docs build to the Makefile
Adding in Sven's changes to the Makefile
Removing DS_store file
Updating per Stephen's comments
Update with Stephen's final comment

Signed-off-by: Mary Anthony <mary@docker.com>
2015-04-03 14:55:24 -07:00