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2018-07-19runsc: copy gateway from the pod network interface.Lantao Liu
PiperOrigin-RevId: 205334841 Change-Id: Ia60d486f9aae70182fdc4af50cf7c915986126d7
2018-07-18Moved restore code out of create and made to be called after create.Justine Olshan
Docker expects containers to be created before they are restored. However, gVisor restoring requires specificactions regarding the kernel and the file system. These actions were originally in booting the sandbox. Now setting up the file system is deferred until a call to a call to runsc start. In the restore case, the kernel is destroyed and a new kernel is created in the same process, as we need the same process for Docker. These changes required careful execution of concurrent processes which required the use of a channel. Full docker integration still needs the ability to restore into the same container. PiperOrigin-RevId: 205161441 Change-Id: Ie1d2304ead7e06855319d5dc310678f701bd099f
2018-07-18runsc: Fixes to CheckpointRestoreTest.Nicolas Lacasse
We must delete the output file at the beginning of the test, otherwise the test fails immediately. Also some minor cleanups in readOutputFile. PiperOrigin-RevId: 205150525 Change-Id: I6bae1acd5b315320a2c6e25a59afcfc06267fb17
2018-07-13runsc: Fix map access race in boot.Loader.waitContainer.Nicolas Lacasse
PiperOrigin-RevId: 204522004 Change-Id: I4819dc025f0a1df03ceaaba7951b1902d44562b3
2018-07-13Bump the timeout when waiting for python HTTP server.Nicolas Lacasse
PiperOrigin-RevId: 204511630 Change-Id: Ib841a7144f3833321b0e69b8585b03c4ed55a265
2018-07-12runsc: Don't close the control server in a defer.Nicolas Lacasse
Closing the control server will block until all open requests have completed. If a control server method panics, we end up stuck because the defer'd Destroy function will never return. PiperOrigin-RevId: 204354676 Change-Id: I6bb1d84b31242d7c3f20d5334b1c966bd6a61dbf
2018-07-11Automated rollback of changelist 203157739Bhasker Hariharan
PiperOrigin-RevId: 204196916 Change-Id: If632750fc6368acb835e22cfcee0ae55c8a04d16
2018-07-11Created runsc and docker integration tests.Justine Olshan
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
2018-07-10Modified error message for clarity.Brielle Broder
Previously, error message only showed "<nil>" when child and pid were the same (since no error is returned by the Wait4 syscall in this case) which occurs when the process has incorrectly terminated. A new error message was added to improve clarity for such a case. Tests for this function were modified to reflect the improved distinction between process termination and error. PiperOrigin-RevId: 204018107 Change-Id: Ib38481c9590405e5bafcb6efe27fd49b3948910c
2018-07-06Tests pause and resume functionality on a Python container.Justine Olshan
PiperOrigin-RevId: 203488336 Change-Id: I55e1b646f1fae73c27a49e064875d55f5605b200
2018-07-03Fix runsc VDSO mappingMichael Pratt
80bdf8a4068de3ac4a73b6b61a0cdcfe3e3571af accidentally moved vdso into an inner scope, never assigning the vdso variable passed to the Kernel and thus skipping VDSO mappings. Fix this and remove the ability for loadVDSO to skip VDSO mappings, since tests that do so are gone. PiperOrigin-RevId: 203169135 Change-Id: Ifd8cadcbaf82f959223c501edcc4d83d05327eba
2018-07-03Skip overlay on root when its readonlyFabricio Voznika
PiperOrigin-RevId: 203161098 Change-Id: Ia1904420cb3ee830899d24a4fe418bba6533be64
2018-07-03runsc: `runsc wait` print wait status.Lantao Liu
PiperOrigin-RevId: 203160639 Change-Id: I8fb2787ba0efb7eacd9d4c934238a26eb5ae79d5
2018-07-03Resend packets back to netstack if destined to itselfFabricio Voznika
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: 203157739 Change-Id: I31c9f7c501e3f55007f25e1852c27893a16ac6c4
2018-07-03Fix flaky image_testFabricio Voznika
- Some failures were being ignored in run_tests.sh - Give more time for mysql to setup - Fix typo with network=host tests - Change httpd test to wait on http server being available, not only output PiperOrigin-RevId: 203156896 Change-Id: Ie1801dcd76e9b5fe4722c4d8695c76e40988dd74
2018-07-03runsc: Mount "mandatory" mounts right after mounting the root.Nicolas Lacasse
The /proc and /sys mounts are "mandatory" in the sense that they should be mounted in the sandbox even when they are not included in the spec. Runsc treats /tmp similarly, because it is faster to use the internal tmpfs implementation instead of proxying to the host. However, the spec may contain submounts of these mandatory mounts (particularly for /tmp). In those cases, we must mount our mandatory mounts before the submount, otherwise the submount will be masked. Since the mandatory mounts are all top-level directories, we can mount them right after the root. PiperOrigin-RevId: 203145635 Change-Id: Id69bae771d32c1a5b67e08c8131b73d9b42b2fbf
2018-07-02runsc/boot/filter: permit SYS_TIME for raceDmitry Vyukov
glibc's malloc also uses SYS_TIME. Permit it. #0 0x0000000000de6267 in time () #1 0x0000000000db19d8 in get_nprocs () #2 0x0000000000d8a31a in arena_get2.part () #3 0x0000000000d8ab4a in malloc () #4 0x0000000000d3c6b5 in __sanitizer::InternalAlloc(unsigned long, __sanitizer::SizeClassAllocatorLocalCache<__sanitizer::SizeClassAllocator32<0ul, 140737488355328ull, 0ul, __sanitizer::SizeClassMap<3ul, 4ul, 8ul, 17ul, 64ul, 14ul>, 20ul, __sanitizer::TwoLevelByteMap<32768ull, 4096ull, __sanitizer::NoOpMapUnmapCallback>, __sanitizer::NoOpMapUnmapCallback> >*, unsigned long) () #5 0x0000000000d4cd70 in __tsan_go_start () #6 0x00000000004617a3 in racecall () #7 0x00000000010f4ea0 in runtime.findfunctab () #8 0x000000000043f193 in runtime.racegostart () Signed-off-by: Dmitry Vyukov <dvyukov@google.com> [mpratt@google.com: updated comments and commit message] Signed-off-by: Michael Pratt <mpratt@google.com> Change-Id: Ibe2d0dc3035bf5052d5fb802cfaa37c5e0e7a09a PiperOrigin-RevId: 203042627
2018-07-02runsc: fix panic for `runsc wait` on stopped container.Lantao Liu
PiperOrigin-RevId: 203016694 Change-Id: Ic51ef754aa6d7d1b3b35491aff96a63d7992e122
2018-07-02Make default limits the same as with runcFabricio Voznika
Closes #2 PiperOrigin-RevId: 202997196 Change-Id: I0c9f6f5a8a1abe1ae427bca5f590bdf9f82a6675
2018-06-29Fix typo.Brielle Broder
PiperOrigin-RevId: 202720658 Change-Id: Iff42fd23f831ee7f29ddd6eb867020b76ed1eb23
2018-06-29Sets the restore environment for restoring a container.Justine Olshan
Updated how restoring occurs through boot.go with a separate Restore function. This prevents a new process and new mounts from being created. Added tests to ensure the container is restored. Registered checkpoint and restore commands so they can be used. Docker support for these commands is still limited. Working on #80. PiperOrigin-RevId: 202710950 Change-Id: I2b893ceaef6b9442b1ce3743bd112383cb92af0c
2018-06-29Added leave-running flag for checkpoint.Brielle Broder
The leave-running flag allows the container to continue running after a checkpoint has occurred by doing an immediate restore into a new container with the same container ID after the old container is destroyed. Updates #80. PiperOrigin-RevId: 202695426 Change-Id: Iac50437f5afda018dc18b24bb8ddb935983cf336
2018-06-28runsc: Add the "wait" subcommand.Kevin Krakauer
Users can now call "runsc wait <container id>" to wait on a particular process inside the container. -pid can also be used to wait on a specific PID. Manually tested the wait subcommand for a single waiter and multiple waiters (simultaneously 2 processes waiting on the container and 2 processes waiting on a PID within the container). PiperOrigin-RevId: 202548978 Change-Id: Idd507c2cdea613c3a14879b51cfb0f7ea3fb3d4c
2018-06-28Add more image testsFabricio Voznika
PiperOrigin-RevId: 202537696 Change-Id: I900fe8fd36cc7a4edb44fe2d03f8ba6768db53cb
2018-06-28Wait for sandbox process when waiting for root containerFabricio Voznika
Closes #71 PiperOrigin-RevId: 202532762 Change-Id: I80a446ff638672ff08e6fd853cd77e28dd05d540
2018-06-28Error out if spec is invalidFabricio Voznika
Closes #66 PiperOrigin-RevId: 202496258 Change-Id: Ib9287c5bf1279ffba1db21ebd9e6b59305cddf34
2018-06-28Add option to configure watchdog actionFabricio Voznika
PiperOrigin-RevId: 202494747 Change-Id: I4d4a18e71468690b785060e580a5f83c616bd90f
2018-06-27Added MkdirAll capabilities for Checkpoint's image-path.Brielle Broder
Now able to save the state file (checkpoint.img) at an image-path that had previously not existed. This is important because there can only be one checkpoint.img file per directory so this will enable users to create as many directories as needed for proper organization. PiperOrigin-RevId: 202360414 Change-Id: If5dd2b72e08ab52834a2b605571186d107b64526
2018-06-26Add KVM, overlay and host network to image testsFabricio Voznika
PiperOrigin-RevId: 202236006 Change-Id: I4ea964a70fc49e8b51c9da27d77301c4eadaae71
2018-06-26runsc: set gofer umask to 0.Lantao Liu
PiperOrigin-RevId: 202185642 Change-Id: I2eefcc0b2ffadc6ef21d177a8a4ab0cda91f3399
2018-06-25runsc: add a `multi-container` flag to enable multi-container support.Lantao Liu
PiperOrigin-RevId: 201995800 Change-Id: I770190d135e14ec7da4b3155009fe10121b2a502
2018-06-25Fix lint errorsFabricio Voznika
PiperOrigin-RevId: 201978212 Change-Id: Ie3df1fd41d5293fff66b546a0c68c3bf98126067
2018-06-22runsc: Enable waiting on individual containers within a sandbox.Kevin Krakauer
PiperOrigin-RevId: 201742160 Change-Id: Ia9fa1442287c5f9e1196fb117c41536a80f6bb31
2018-06-22Modified Checkpoint/Restore flags to improve compatibility with Docker.Brielle Broder
Added a number of unimplemented flags required for using runsc's Checkpoint and Restore with Docker. Modified the "image-path" flag to require a directory instead of a file. PiperOrigin-RevId: 201697486 Change-Id: I55883df2f1bbc3ec3c395e0ca160ce189e5e7eba
2018-06-21Forward SIGUSR2 to the sandbox tooFabricio Voznika
SIGUSR2 was being masked out to be used as a way to dump sentry stacks. This could cause compatibility problems in cases anyone uses SIGUSR2 to communicate with the container init process. PiperOrigin-RevId: 201575374 Change-Id: I312246e828f38ad059139bb45b8addc2ed055d74
2018-06-21Added functionality to create a RestoreEnvironment.Justine Olshan
Before a container can be restored, the mounts must be configured. The root and submounts and their key information is compiled into a RestoreEnvironment. Future code will be added to set this created environment before restoring a container. Tests to ensure the correct environment were added. PiperOrigin-RevId: 201544637 Change-Id: Ia894a8b0f80f31104d1c732e113b1d65a4697087
2018-06-21Restore implementation added to runsc.Brielle Broder
Restore creates a new container and uses the given image-path to load a saved image of a previous container. Restore command is plumbed through container and sandbox. This command does not work yet - more to come. PiperOrigin-RevId: 201541229 Change-Id: I864a14c799ce3717d99bcdaaebc764281863d06f
2018-06-21runsc: Default umask should be 0.Nicolas Lacasse
PiperOrigin-RevId: 201539050 Change-Id: I36cbf270fa5ad25de507ecb919e4005eda6aa16d
2018-06-21Fix typo in runsc gofer flag descriptionIan Gudger
PiperOrigin-RevId: 201529295 Change-Id: I55eb516ec6d14fbcd48593a3d61f724adc253a23
2018-06-20Reduce test sleep timeFabricio Voznika
PiperOrigin-RevId: 201428433 Change-Id: I72de1e46788ec84f61513416bb690956e515907e
2018-06-20Include image test as part of kokoro testsFabricio Voznika
PiperOrigin-RevId: 201427731 Change-Id: I5cbee383ec51c02b7892ec7812cbbdc426be8991
2018-06-20Add end-to-end image testsFabricio Voznika
PiperOrigin-RevId: 201418619 Change-Id: I7961b027394d98422642f829bc54745838c138bd
2018-06-20Add 'runsc debug' commandFabricio Voznika
It prints sandbox stacks to the log to help debug stuckness. I expect that many more options will be added in the future. PiperOrigin-RevId: 201405931 Change-Id: I87e560800cd5a5a7b210dc25a5661363c8c3a16e
2018-06-20Add tool to configure runtime settings in dockerFabricio Voznika
This will be used with the upcoming e2e image tests. PiperOrigin-RevId: 201400832 Change-Id: I49509314e16ea54655ea8060dbf511a04a7a8f79
2018-06-19runsc: Enable container creation within existing sandboxes.Kevin Krakauer
Containers are created as processes in the sandbox. Of the many things that don't work yet, the biggest issue is that the fsgofer is launched with its root as the sandbox's root directory. Thus, when a container is started and wants to read anything (including the init binary of the container), the gofer tries to serve from sandbox's root (which basically just has pause), not the container's. PiperOrigin-RevId: 201294560 Change-Id: I6423aa8830538959c56ae908ce067e4199d627b1
2018-06-19runsc: Whitelist lstat, as it is now used in specutils.Kevin Krakauer
When running multi-container, child containers are added after the filters have been installed. Thus, lstat must be in the set of allowed syscalls. PiperOrigin-RevId: 201269550 Change-Id: I03f2e6675a53d462ed12a0f651c10049b76d4c52
2018-06-19runsc: Fix flakey container_test.Kevin Krakauer
Verified that this is no longer flakey over 10K repetitions. PiperOrigin-RevId: 201267499 Change-Id: I793c916fe725412aec25953f764cb4f52c9fbed3
2018-06-19Added a resume command to unpause a paused container.Justine Olshan
Resume checks the status of the container and unpauses the kernel if its status is paused. Otherwise nothing happens. Tests were added to ensure that the process is in the correct state after various commands. PiperOrigin-RevId: 201251234 Change-Id: Ifd11b336c33b654fea6238738f864fcf2bf81e19
2018-06-18Modified boot.go to allow for restores.Justine Olshan
A file descriptor was added as a flag to boot so a state file can restore a container that was checkpointed. PiperOrigin-RevId: 201068699 Change-Id: I18e96069488ffa3add468861397f3877725544aa
2018-06-18runsc: support symlink to the exec path.Lantao Liu
PiperOrigin-RevId: 201049912 Change-Id: Idd937492217a4c2ca3d59c602e41576a3b203dd9
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