17bff47198
libcontainer: Use MS_PRIVATE instead of MS_SLAVE
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Now that we unmount all the mounts from the global namespace we can
use a private namespace rather than a slave one (as we have no need
for unmounts of inherited global mounts to propagate into the
container).
Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
2014-03-05 09:40:54 +01:00
6ff26f0857
Add shm size cap to mount
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-03-04 14:18:40 -08:00
aa50853ac4
Remove /dev tmpfs mountpoint
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-03-04 13:21:22 -08:00
35c62aa03c
remove /run mountpoint
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-03-04 12:32:17 -08:00
fd9241d07b
Remove loopback mount bind
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-03-04 12:30:52 -08:00
8bacfd5b81
Merge pull request #4452 from crosbymichael/small-fixes-to-libcontainer
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Add find tests and remove panic in DEBUG
2014-03-04 14:37:41 -05:00
853bb95be4
Add find tests and remove panic in DEBUG
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-03-04 08:55:12 -08:00
56de885455
libcontainer: Use pivot_root instead of chroot
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Instead of keeping all the old mounts in the container namespace and
just using subtree as root we pivot_root so that the actual root in
the namespace is the root we want, and then we unmount the previous
mounts.
This has multiple advantages:
* The namespace mount tree is smaller (in the kernel)
* If you break out of the chroot you could previously access the host
filesystem. Now the host filesystem is fully invisible to the namespace.
* We get rid of all unrelated mounts from the parent namespace, which means
we don't hog these. This is important if we later switch to MS_PRIVATE instead
of MS_SLAVE as otherwise these mounts would be impossible to unmount from the
parent namespace.
Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
2014-03-04 12:44:08 +01:00
674984f7c8
very minor spelling
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Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au> (github: SvenDowideit)
2014-03-04 10:12:12 +10:00
8a606378da
Factor out finalize namespace
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-03-03 12:15:47 -08:00
b40850a789
Update readme to remove .nspid
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-03-03 11:31:37 -08:00
43bff9344a
Allow child process to live if daemon dies
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-27 09:33:36 -08:00
64401b859c
Code review updates
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-26 19:21:46 -08:00
5dee49836d
Ensure that loopback devices are mounted inside the conatiner
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-26 17:21:09 -08:00
595d116827
Make network a slice to support multiple types
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-26 14:20:41 -08:00
51c1f247e3
Fix cross compile for make cross
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-25 15:19:13 -08:00
383636e03d
Move container.json and pid file into a root specific driver dir
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-25 12:41:31 -08:00
9f4c15e978
Better capability/namespace management
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-02-24 21:52:29 -08:00
5828e8e171
Refactor and improve libcontainer and driver
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Remove logging for now because it is complicating things
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-24 21:11:52 -08:00
3502e47953
Improve logging for nsinit
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-24 18:38:36 -08:00
96f2efb04b
Cgroups allow devices for privileged containers
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-24 15:47:23 -08:00
739da85557
Honor user passed on container in nsinit
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-24 13:52:56 -08:00
25f62af162
Fix tests with dockerinit lookup path
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-24 13:40:17 -08:00
f5b71e2e20
Refactor driver to use Exec function from nsini
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-22 01:21:26 -08:00
7bda098ebc
Abstract out diff implementations for importing
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-22 00:29:21 -08:00
4d586e9b5a
Add syncpipe for passing context
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 22:58:30 -08:00
154404f969
Refactor exec method
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 22:37:09 -08:00
07992e6521
Refactor network creation and initialization into strategies
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 22:26:07 -08:00
2182745b9f
Export functions of nsinit
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 21:14:21 -08:00
747f46a5e6
Initial commit of libcontainer running docker
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 17:23:49 -08:00
01c57731cf
Pass tty master to Exec
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 16:40:32 -08:00
6ee2801819
Pass pipes into Exec function
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 16:28:43 -08:00
782da799f8
Use lookup path for init
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 16:17:18 -08:00
58040c73b7
User os.Args[0] as name to reexec
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 15:32:50 -08:00
d8cbcf657f
Add good logging support to both sides
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:17 -08:00
b3d4ac7fc0
Move tty into container.json
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:17 -08:00
cdd46116e7
Refactor the flag management for main
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:17 -08:00
f3753e4bc0
Make nsinit a proper go pkg and add the main in another dir
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:17 -08:00
32caa8e018
Make sure to close the pipe upon ctrl-d
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-02-21 14:56:17 -08:00
d358a4498d
Handle non-tty mode
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-02-21 14:56:17 -08:00
29e9072c1f
Minor cleanup
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-02-21 14:56:17 -08:00
25e0904677
Use a custom pipe instead of stdin for sync net namespace
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-02-21 14:56:16 -08:00
b45ae4b5f4
Use flag for init
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Docker-DCO-1.1-Signed-off-by: Guillaume J. Charmes <guillaume.charmes@docker.com> (github: creack)
2014-02-21 14:56:16 -08:00
3c4f785851
Move rest of cgroups functions into cgroups pkg
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:16 -08:00
67cb164880
Change IP to address because it includes the subnet
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:16 -08:00
a5eb607db7
Refactory cgroups into general pkg
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:16 -08:00
17a3359c16
Remove clone_vfork
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:16 -08:00
fce169539d
Revert "WIP for setup kmsg"
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This reverts commit 80db9a918337c4ae80ffa9a001da13bd24e848c8.
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:16 -08:00
f65aba02b3
libcontainer: Initial version of cgroups support
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This is a minimal version of raw cgroup support for libcontainer.
It has only enough for what docker needs, and it has no support
for systemd yet.
Docker-DCO-1.1-Signed-off-by: Alexander Larsson <alexl@redhat.com> (github: alexlarsson)
2014-02-21 14:56:16 -08:00
5713a49479
WIP for setup kmsg
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Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
2014-02-21 14:56:16 -08:00
Alexander Larsson
Michael Crosby
Guillaume J. Charmes
Sven Dowideit