| Age | Commit message (Collapse) | Author |
|---|
|
Docker.Run only returns a single argument.
PiperOrigin-RevId: 215427309
Change-Id: I1eebbc628853ca57f79d25e18d4f04dfa5a2a003
|
|
Terminal support in runsc relies on host tty file descriptors that are imported
into the sandbox. Application tty ioctls are sent directly to the host fd.
However, those host tty ioctls are associated in the host kernel with a host
process (in this case runsc), and the host kernel intercepts job control
characters like ^C and send signals to the host process. Thus, typing ^C into a
"runsc exec" shell will send a SIGINT to the runsc process.
This change makes "runsc exec" handle all signals, and forward them into the
sandbox via the "ContainerSignal" urpc method. Since the "runsc exec" is
associated with a particular container process in the sandbox, the signal must
be associated with the same container process.
One big difficulty is that the signal should not necessarily be sent to the
sandbox process started by "exec", but instead must be sent to the foreground
process group for the tty. For example, we may exec "bash", and from bash call
"sleep 100". A ^C at this point should SIGINT sleep, not bash.
To handle this, tty files inside the sandbox must keep track of their
foreground process group, which is set/get via ioctls. When an incoming
ContainerSignal urpc comes in, we look up the foreground process group via the
tty file. Unfortunately, this means we have to expose and cache the tty file in
the Loader.
Note that "runsc exec" now handles signals properly, but "runs run" does not.
That will come in a later CL, as this one is complex enough already.
Example:
root@:/usr/local/apache2# sleep 100
^C
root@:/usr/local/apache2# sleep 100
^Z
[1]+ Stopped sleep 100
root@:/usr/local/apache2# fg
sleep 100
^C
root@:/usr/local/apache2#
PiperOrigin-RevId: 215334554
Change-Id: I53cdce39653027908510a5ba8d08c49f9cf24f39
|
|
PiperOrigin-RevId: 215023376
Change-Id: I139569bd15c013e5dd0f60d0c98a64eaa0ba9e8e
|
|
When no capabilities are specified in exec, use the
container's capabilities to match runc's behavior.
PiperOrigin-RevId: 211735186
Change-Id: Icd372ed64410c81144eae94f432dffc9fe3a86ce
|
|
inethost doesn't support netlink and 'ifconfig' call to retrieve IP address
fails. Look up IP address in /etc/hosts instead.
PiperOrigin-RevId: 208135641
Change-Id: I3c2ce15db6fc7c3306a45e4bfb9cc5d4423ffad3
|
|
Add option to redirect packet back to netstack if it's destined to itself.
This fixes the problem where connecting to the local NIC address would
not work, e.g.:
echo bar | nc -l -p 8080 &
echo foo | nc 192.168.0.2 8080
PiperOrigin-RevId: 207995083
Change-Id: I17adc2a04df48bfea711011a5df206326a1fb8ef
|
|
integration_test runs manually and breakage wasn't detected. Added test to
kokoro to ensure breakages are detected in the future.
PiperOrigin-RevId: 207772835
Change-Id: Iada81b579b558477d4db3516b38366ef6a2e933d
|
|
Moved some of the docker image functions to testutil.go.
Test runsc commands create, start, stop, pause, and resume.
PiperOrigin-RevId: 204138452
Change-Id: Id00bc58d2ad230db5e9e905eed942187e68e7c7b
|
