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12 commits

Author SHA1 Message Date
Michael Crosby
005506d36c Update moby to runc and oci 1.0 runtime final rc
Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2017-05-05 13:45:45 -07:00
Akihiro Suda
8b1772c86b oci/defaults_linux.go: mask /sys/firmware
On typical x86_64 machines, /sys/firmware can contain SMBIOS and ACPI tables.
There is no need to expose the directory to containers.

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
2016-10-12 06:07:13 +00:00
John Howard
02309170a5 Remove hacked Windows OCI spec, compile fixups
Signed-off-by: John Howard <jhoward@microsoft.com>
2016-09-27 12:07:35 -07:00
Michael Crosby
ee3ac3aa66 Add init process for zombie fighting
This adds a small C binary for fighting zombies.  It is mounted under
`/dev/init` and is prepended to the args specified by the user.  You
enable it via a daemon flag, `dockerd --init`, as it is disable by
default for backwards compat.

You can also override the daemon option or specify this on a per
container basis with `docker run --init=true|false`.

You can test this by running a process like this as the pid 1 in a
container and see the extra zombie that appears in the container as it
is running.

```c

int main(int argc, char ** argv) {
	pid_t pid = fork();
	if (pid == 0) {
		pid = fork();
		if (pid == 0) {
			exit(0);
		}
		sleep(3);
		exit(0);
	}
	printf("got pid %d and exited\n", pid);
	sleep(20);
}
```

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2016-09-19 17:33:50 -07:00
Michael Crosby
041e5a21dc Replace old oci specs import with runtime-specs
Fixes #25804

The upstream repo changed the import paths.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
2016-08-17 09:38:34 -07:00
Justin Cormack
39ecc08f32 Do not create /dev/fuse by default
This device is not required by the OCI spec.

The rationale for this was linked to docker/docker#2393

So a non functional /dev/fuse was created, and actual fuse use still is
required to add the device explicitly. However even old versions of the JVM
on Ubuntu 12.04 no longer require the fuse package, and this is all not
needed.

See also https://github.com/opencontainers/runc/pull/983 although this
change alone stops the fuse device being created.

Tested and does not change actual ability to use fuse.

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
2016-08-12 12:33:42 +01:00
Davanum Srinivas
03bd00b68f Adding /proc/timer_list to the masked paths list
/proc/timer_list seems to leak information about the host. Here is
an example from a busybox container running on docker+kubernetes.

 # cat /proc/timer_list | grep -i -e kube
 <ffff8800b8cc3db0>, hrtimer_wakeup, S:01, futex_wait_queue_me, kubelet/2497
 <ffff880129ac3db0>, hrtimer_wakeup, S:01, futex_wait_queue_me, kube-proxy/3478
 <ffff8800b1b77db0>, hrtimer_wakeup, S:01, futex_wait_queue_me, kube-proxy/3470
 <ffff8800bb6abdb0>, hrtimer_wakeup, S:01, futex_wait_queue_me, kubelet/2499

Signed-Off-By: Davanum Srinivas <davanum@gmail.com>
Signed-off-by: Davanum Srinivas <davanum@gmail.com>
2016-08-11 15:19:26 -04:00
Akihiro Suda
b397f978c6 oci: default devices don't need to be listed explicitly
Eliminating these things make the code much more understandable.

See also adcbe530a9/config-linux.md (default-devices)
df25eddce6/libcontainer/specconv/spec_linux.go (L454)

Signed-off-by: Akihiro Suda <suda.kyoto@gmail.com>
2016-04-11 05:58:49 +00:00
Alexander Morozov
5ee8652a21 all: remove some unused funcs and variables
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
2016-04-06 10:40:01 -07:00
Tonis Tiigi
3f81b49352 Define readonly/mask paths in spec
This vendors in new spec/runc that supports
setting readonly and masked paths in the 
configuration. Using this allows us to make an
exception for `—-privileged`.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
2016-04-04 18:55:55 -07:00
Zhang Wei
c9db9e4ff1 Clean dead code
Signed-off-by: Zhang Wei <zhangwei555@huawei.com>
2016-03-21 16:43:24 +08:00
Tonis Tiigi
9c4570a958 Replace execdrivers with containerd implementation
Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
Signed-off-by: Anusha Ragunathan <anusha@docker.com>
2016-03-18 13:38:32 -07:00