The stime syscall is a legacy syscall on some architectures
to set the clock, should be blocked as time is not namespaced.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
clock_adjtime is the new posix style version of adjtime allowing
a specific clock to be specified. Time is not namespaced, so do
not allow.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
This is a new version of init_module that takes a file descriptor
rather than a file name.
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
The set_robust_list syscall sets the list of futexes which are
cleaned up on thread exit, and are needed to avoid mutexes
being held forever on thread exit.
See for example in Musl libc mutex handling:
http://git.musl-libc.org/cgit/musl/tree/src/thread/pthread_mutex_trylock.c#n22
Signed-off-by: Justin Cormack <justin.cormack@unikernel.com>
It's used for updating properties of one or more containers, we only
support resource configs for now. It can be extended in the future.
Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Whether a shared/slave volume propagation will work or not also depends on
where source directory is mounted on and what are the propagation properties
of that mount point. For example, for shared volume mount to work, source
mount point should be shared. For slave volume mount to work, source mount
point should be either shared/slave.
This patch determines the mount point on which directory is mounted and
checks for desired minimum propagation properties of that mount point. It
errors out of configuration does not seem right.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Allow passing mount propagation option shared, slave, or private as volume
property.
For example.
docker run -ti -v /root/mnt-source:/root/mnt-dest:slave fedora bash
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Ubuntu 14.04 LTS is on apparmor 2.8.95.
This enables `ps` inside a container without causing
audit log entries on the host.
Signed-off-by: Joel Hansson <joel.hansson@ecraft.com>
It will Tar up contents of child directory onto tmpfs if mounted over
This patch will use the new PreMount and PostMount hooks to "tar"
up the contents of the base image on top of tmpfs mount points.
Signed-off-by: Dan Walsh <dwalsh@redhat.com>
libcontainer v0.0.4 introduces setting `/proc/self/oom_score_adj` to
better tune oom killing preferences for container process. This patch
simply integrates OomScoreAdj libcontainer's config option and adjust
the cli with this new option.
Signed-off-by: Antonio Murdaca <amurdaca@redhat.com>
Signed-off-by: Antonio Murdaca <runcom@redhat.com>
Adjust the docker-default profile for when the docker daemon is running in
AppArmor confinement. To enable 'docker kill' we need to allow the container
to receive kill signals from the daemon.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Our implementation of systemd cgroups is mixture of systemd api and
plain filesystem api. It's hard to keep it up to date with systemd and
it already contains some nasty bugs with new versions. Ideally it should
be replaced with some daemon flag which will allow to set parent systemd
slice.
Signed-off-by: Alexander Morozov <lk4d4@docker.com>
When running LXC dind (outer docker is started with native driver)
cgroup paths point to `/docker/CID` inside `/proc/self/mountinfo` but
these paths aren't mounted (root is wrong). This fix just discard the
cgroup dir from mountinfo and set it to root `/`.
This patch fixes/skip OOM LXC tests that were failing.
Fix#16520
Signed-off-by: Antonio Murdaca <runcom@linux.com>
Signed-off-by: Antonio Murdaca <amurdaca@redhat.com>
Adds support for the daemon to handle user namespace maps as a
per-daemon setting.
Support for handling uid/gid mapping is added to the builder,
archive/unarchive packages and functions, all graphdrivers (except
Windows), and the test suite is updated to handle user namespace daemon
rootgraph changes.
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Although having a request ID available throughout the codebase is very
valuable, the impact of requiring a Context as an argument to every
function in the codepath of an API request, is too significant and was
not properly understood at the time of the review.
Furthermore, mixing API-layer code with non-API-layer code makes the
latter usable only by API-layer code (one that has a notion of Context).
This reverts commit de41640435, reversing
changes made to 7daeecd42d.
Signed-off-by: Tibor Vass <tibor@docker.com>
Conflicts:
api/server/container.go
builder/internals.go
daemon/container_unix.go
daemon/create.go
This PR adds a "request ID" to each event generated, the 'docker events'
stream now looks like this:
```
2015-09-10T15:02:50.000000000-07:00 [reqid: c01e3534ddca] de7c5d4ca927253cf4e978ee9c4545161e406e9b5a14617efb52c658b249174a: (from ubuntu) create
```
Note the `[reqID: c01e3534ddca]` part, that's new.
Each HTTP request will generate its own unique ID. So, if you do a
`docker build` you'll see a series of events all with the same reqID.
This allow for log processing tools to determine which events are all related
to the same http request.
I didn't propigate the context to all possible funcs in the daemon,
I decided to just do the ones that needed it in order to get the reqID
into the events. I'd like to have people review this direction first, and
if we're ok with it then I'll make sure we're consistent about when
we pass around the context - IOW, make sure that all funcs at the same level
have a context passed in even if they don't call the log funcs - this will
ensure we're consistent w/o passing it around for all calls unnecessarily.
ping @icecrime @calavera @crosbymichael
Signed-off-by: Doug Davis <dug@us.ibm.com>
Using @mavenugo's patch for enabling the libcontainer pre-start hook to
be used for network namespace initialization (correcting the conflict
with user namespaces); updated the boolean check to the more generic
SupportsHooks() name, and fixed the hook state function signature.
Signed-off-by: Madhu Venugopal <madhu@docker.com>
Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Arnaud Porterie
Justin Cormack
Jessica Frazelle
Qiang Huang
Jess Frazelle
Brian Goff
Alexander Morozov
Vivek Goyal
Justas Brazauskas
Mrunal Patel
Joel Hansson
Alexander Morozov
Dan Walsh
Antonio Murdaca
Antonio Murdaca
Stefan Berger
Vincent Demeester
John Howard
Antonio Murdaca
Phil Estes
Deng Guangxing
Tibor Vass
Michael Crosby
Doug Davis
Hu Keping
Madhu Venugopal