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3720 Commits

Author SHA1 Message Date
Alexander Larsson 572b1fd9be devmapper: Fix major/minor extraction 
The way devices are mapped is a bit more complex than before.
This implements the method from new_decode_dev in:
https://github.com/mirrors/linux-2.6/blob/master/include/linux/kdev_t.h

Which is what is needed on kernels > 2.6
 2013-10-18 11:38:21 +02:00
Solomon Hykes 4756ad248a devmapper: use major,minor of underlying device in devmapper device name, for readability. 2013-10-18 08:30:53 +00:00
Solomon Hykes dfb77274ce devmapper: clearer make the 'unknown base hash' error message more understandable 2013-10-18 08:22:42 +00:00
Solomon Hykes 73545199a8 Merge remote-tracking branch 'alexlarsson/dm-status' into dm 
Conflicts:
	devmapper/deviceset.go
 2013-10-18 07:17:13 +00:00
Solomon Hykes 0ad35c6746 devmapper: cleanup error reporting 2013-10-18 07:09:13 +00:00
Solomon Hykes 5e363072f5 Merge branch 'dm' of ssh://github.com/dotcloud/docker into dm 2013-10-18 06:51:50 +00:00
Solomon Hykes cad913c57b devmapper: the tests are fast enough that we no longer need a workaround to avoid timeouts 2013-10-18 06:48:20 +00:00
Solomon Hykes 5f58a1fbe4 hack: encode the name of the current test in temporary directories, for easier tracking 2013-10-18 06:47:08 +00:00
Solomon Hykes 07e09d57af Increase readbility of unit tests by using mkRuntime everywhere 2013-10-18 06:44:30 +00:00
Solomon Hykes 9f85a967bb Merge pull request #2269 from alexlarsson/dm-blocksize 
devmapper: Use a smaller blocksize for the thin-pool
 2013-10-17 22:50:33 -07:00
Solomon Hykes 85a36b3b53 devmapper: rename deviceset_devmapper.go to deviceset.go 2013-10-18 05:19:22 +00:00
Solomon Hykes d3505d836a Merge remote-tracking branch 'alexlarsson/dm-readonly-images' into dm 
Conflicts:
	devmapper/deviceset_devmapper.go
 2013-10-18 03:40:46 +00:00
Solomon Hykes c47e93fcbe Merge remote-tracking branch 'alexlarsson/fix-tar-leak' into dm-correct 2013-10-18 03:32:47 +00:00
Solomon Hykes 5cd7de5de8 hack: fail tests if there are leftover temp files before or after 2013-10-18 03:31:21 +00:00
Solomon Hykes d034aafac7 devicemapper: Add fixme 2013-10-18 00:58:20 +00:00
Solomon Hykes 4bd6021806 devmapper: Rename DeviceSetDM to DeviceSet 2013-10-18 00:07:56 +00:00
Solomon Hykes ed03dbfe82 Don't add /.docker-id to the container filesystem 2013-10-18 00:07:46 +00:00
Solomon Hykes 330062ef72 Remove race condition caused by double-destroy in 2 tests 2013-10-17 23:59:59 +00:00
Guillaume J. Charmes 31b883b076
Add error checking and error messages 2013-10-17 15:04:14 -07:00
Guillaume J. Charmes bdb3b2a88c Merge pull request #2262 from alexlarsson/dm-dind-use-root-dir 
devicemapper: Use device/inode of the root dir, not the image
 2013-10-17 11:54:40 -07:00
Alexander Larsson a14496ce89 Devmapper: Mount images readonly when calculating changes 
There is no need to have this be writable, and there is a chance
that e.g. atime updates will cause writes to the image which is
bad for disk use wrt sharing between all containers.
 2013-10-17 16:14:53 +02:00
Alexander Larsson 8abcc8e713 devmapper: Use a smaller blocksize for the thin-pool 
As per the thin provisioning docs for creating the pool:

   $data_block_size gives the smallest unit of disk space that can be
   allocated at a time expressed in units of 512-byte sectors.
   $data_block_size must be between 128 (64KB) and 2097152 (1GB) and a
   multiple of 128 (64KB). $data_block_size cannot be changed after the
   thin-pool is created. People primarily interested in thin provisioning
   may want to use a value such as 1024 (512KB). People doing lots of
   snapshotting may want a smaller value such as 128 (64KB).

The switch from 512 (which we used before) to 128 (recommended above
for lots of snapshoting) means a simple container creation (based on the
mattdm/fedora:f19 image) adds 1 MB of diskspace rather than 3.6.
This seems more in tune with how docker is typically used.
 2013-10-17 15:33:00 +02:00
Alexander Larsson d733cdcebb Show devicemapper status in "docker info" 
This shows the current global diskspace use in "docker info"
 2013-10-17 15:32:07 +02:00
Alexander Larsson 0aee096fd7 TarFilter: Fix leak of tmpfiles 
We were leaking the temporary directory that we create in TarFilter,
because the "tmpDir, err := ioutil.TempDir()" call overrides the
tmpDir in the outer scope with a new locally scoped variable.
This means tmpDir is always "" when the cleanup function is called.

Also, we did not call the atExit() function if CmdStream had an
error early on.

On errors in CmdStream(),
 2013-10-17 14:46:58 +02:00
Alexander Larsson e6a73e65a2 devicemapper: Use device/inode of the root dir, not the image 
This way the devicemapper prefix stays stable even if we're not
using loopback mounted devices.
 2013-10-17 09:53:09 +02:00
Solomon Hykes ad2fbd9e87 devmapper: error reporting workaround in waitRemove() 2013-10-17 01:49:51 +00:00
Solomon Hykes e5d7472a0d devmapper: small fixes in error reporting 2013-10-17 01:49:27 +00:00
Solomon Hykes 7d3c7e2b29 devmapper: debug messages 2013-10-17 01:47:03 +00:00
Solomon Hykes f1d07e2dbe devmapper: prefix device names with the dev_id+inode of the data image 2013-10-17 01:46:28 +00:00
Solomon Hykes ad968ef3ef devmapper: add useful comments 2013-10-17 01:42:05 +00:00
Solomon Hykes c688e9b5a6 devmapper: debug messages 2013-10-16 23:27:33 +00:00
Solomon Hykes f3e6d34df2 hack: cleanup devicemapper at the last test 2013-10-16 23:27:00 +00:00
Solomon Hykes ea04f3de72 devmapper: wait for devices to be effectively removed before returning a successful remove 2013-10-16 23:26:37 +00:00
Solomon Hykes 153248b60f devicemapper: remove unused code 2013-10-16 23:23:35 +00:00
Solomon Hykes 1711de4b09 devmapper: wait for devices to be effectively unmounted before removing them 2013-10-16 23:06:07 +00:00
Solomon Hykes 11d695a297 Add debug messages while testing devicemapper 2013-10-16 20:45:59 +00:00
Solomon Hykes acf58362cb Hack: fix tests which didn't cleanup properly 2013-10-16 20:44:15 +00:00
Guillaume J. Charmes 3a246ac3d1 Change default values for devicemapper as variable instead of env 2013-10-16 20:42:50 +00:00
Solomon Hykes 1da335f784 Hack: don't run integration tests in /var/lib/docker/unit-tests; add missing cleanups in a few tests 2013-10-16 20:10:20 +00:00
Solomon Hykes cd61fb2e6f WIP: debugging dm-base-hash + dm-refactor-init 2013-10-15 23:56:04 +00:00
Solomon Hykes fdba1aeed8 Merge branch 'dm-refactor-init' into dm 
Conflicts:
	runtime_test.go
 2013-10-15 23:27:28 +00:00
Solomon Hykes c9f3e54c31 Merge branch 'dm-base-hash' into dm 2013-10-15 23:09:26 +00:00
Solomon Hykes 3997b8a923 hack: don't set DEBUG when running tests 2013-10-15 23:07:26 +00:00
Solomon Hykes ec885d9180 hack: only run certain tests with TESTFLAGS='-run TestName' make.sh 2013-10-15 23:06:41 +00:00
Solomon Hykes 54b0cd7cd1 Merge branch 'dm-missing-mapper' into dm 2013-10-15 22:51:20 +00:00
Solomon Hykes 66db2ac9d8 Merge branch 'dm-fix-test-2' into dm 2013-10-15 22:42:49 +00:00
Alexander Larsson 5ebaca7e55 devmapper: create device nodes 'on create' instead of 'on resume' 2013-10-15 21:27:47 +00:00
Solomon Hykes 432ff7e3c3 Merge pull request #2227 from dotcloud/dm-rename-loopback 
Rename loopback dir to devicemapper
 2013-10-15 12:23:43 -07:00
Michael Crosby 80bd64245f Add filesystemtype for containers 
If no type is specified then assume aufs.
 2013-10-15 11:49:13 -07:00
Michael Crosby 4431e9edb7 Rename loopback dir to devicemapper 2013-10-15 11:30:06 -07:00