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2018-12-13container.Destroy should clean up container metadata even if other cleanups failNicolas Lacasse
If the sandbox process is dead (because of a panic or some other problem), container.Destroy will never remove the container metadata file, since it will always fail when calling container.stop(). This CL changes container.Destroy() to always perform the three necessary cleanup operations: * Stop the sandbox and gofer processes. * Remove the container fs on the host. * Delete the container metadata directory. Errors from these three operations will be concatenated and returned from Destroy(). PiperOrigin-RevId: 225448164 Change-Id: I99c6311b2e4fe5f6e2ca991424edf1ebeae9df32
2018-12-11Add "trace signal" optionMichael Pratt
This option is effectively equivalent to -panic-signal, except that the sandbox does not die after logging the traceback. PiperOrigin-RevId: 225089593 Change-Id: Ifb1c411210110b6104613f404334bd02175e484e
2018-12-10Open source system call tests.Brian Geffon
PiperOrigin-RevId: 224886231 Change-Id: I0fccb4d994601739d8b16b1d4e6b31f40297fb22
2018-12-10Internal change.Nicolas Lacasse
PiperOrigin-RevId: 224865061 Change-Id: I6aa31f880931980ad2fc4c4b3cc4c532aacb31f4
2018-12-07sentry: turn "dynamically-created" procfs files into static creation.Zhaozhong Ni
PiperOrigin-RevId: 224600982 Change-Id: I547253528e24fb0bb318fc9d2632cb80504acb34
2018-12-06A sandbox process should wait until it has not been moved into cgroupsAndrei Vagin
PiperOrigin-RevId: 224418900 Change-Id: I53cf4d7c1c70117875b6920f8fd3d58a3b1497e9
2018-12-04Max link traversals should be for an entire path.Brian Geffon
The number of symbolic links that are allowed to be followed are for a full path and not just a chain of symbolic links. PiperOrigin-RevId: 224047321 Change-Id: I5e3c4caf66a93c17eeddcc7f046d1e8bb9434a40
2018-12-03Internal change.Googler
PiperOrigin-RevId: 223893409 Change-Id: I58869c7fb0012f6c3f7612a96cb649348b56335f
2018-11-28Internal change.Googler
PiperOrigin-RevId: 223231273 Change-Id: I8fb97ea91f7507b4918f7ce6562890611513fc30
2018-11-28Fix crictl tests.Kevin Krakauer
gvisor-containerd-shim moved. It now has a stable URL that run_tests.sh always uses. PiperOrigin-RevId: 223188822 Change-Id: I5687c78289404da27becd8d5949371e580fdb360
2018-11-27Disable crictl testsMichael Pratt
gvisor-containerd-shim installation is currently broken. PiperOrigin-RevId: 223002877 Change-Id: I2b890c5bf602a96c475c3805f24852ead8593a35
2018-11-20Use RET_KILL_PROCESS if available in kernelFabricio Voznika
RET_KILL_THREAD doesn't work well for Go because it will kill only the offending thread and leave the process hanging. RET_TRAP can be masked out and it's not guaranteed to kill the process. RET_KILL_PROCESS is available since 4.14. For older kernel, continue to use RET_TRAP as this is the best option (likely to kill process, easy to debug). PiperOrigin-RevId: 222357867 Change-Id: Icc1d7d731274b16c2125b7a1ba4f7883fbdb2cbd
2018-11-20Use math.Rand to generate a random test container id.Nicolas Lacasse
We were relying on time.UnixNano, but that was causing collisions. Now we generate 20 bytes of entropy from rand.Read, and base32-encode it to get a valid container id. PiperOrigin-RevId: 222313867 Change-Id: Iaeea9b9582d36de55f9f02f55de6a5de3f739371
2018-11-20Internal change.Nicolas Lacasse
PiperOrigin-RevId: 222170431 Change-Id: I26a6d6ad5d6910a94bb8b0a05fc2d12e23098399
2018-11-20Add unsupported syscall events for get/setsockoptFabricio Voznika
PiperOrigin-RevId: 222148953 Change-Id: I21500a9f08939c45314a6414e0824490a973e5aa
2018-11-20Don't fail when destroyContainerFS is called more than onceFabricio Voznika
This can happen when destroy is called multiple times or when destroy failed previously and is being called again. PiperOrigin-RevId: 221882034 Change-Id: I8d069af19cf66c4e2419bdf0d4b789c5def8d19e
2018-11-20Internal change.Nicolas Lacasse
PiperOrigin-RevId: 221848471 Change-Id: I882fbe5ce7737048b2e1f668848e9c14ed355665
2018-11-15Allow sandbox.Wait to be called after the sandbox has exited.Nicolas Lacasse
sandbox.Wait is racey, as the sandbox may have exited before it is called, or even during. We already had code to handle the case that the sandbox exits during the Wait call, but we were not properly handling the case where the sandbox has exited before the call. The best we can do in such cases is return the sandbox exit code as the application exit code. PiperOrigin-RevId: 221702517 Change-Id: I290d0333cc094c7c1c3b4ce0f17f61a3e908d787
2018-11-14Internal change.Nicolas Lacasse
PiperOrigin-RevId: 221462069 Change-Id: Id469ed21fe12e582c78340189b932989afa13c67
2018-11-13Internal change.Nicolas Lacasse
PiperOrigin-RevId: 221343626 Change-Id: I03d57293a555cf4da9952a81803b9f8463173c89
2018-11-13Internal change.Nicolas Lacasse
PiperOrigin-RevId: 221343421 Change-Id: I418b5204c5ed4fe1e0af25ef36ee66b9b571928e
2018-11-13Internal change.Nicolas Lacasse
PiperOrigin-RevId: 221299066 Change-Id: I8ae352458f9976c329c6946b1efa843a3de0eaa4
2018-11-12Internal change.Nicolas Lacasse
PiperOrigin-RevId: 221178413 Change-Id: I0e615c5e945cb924d8df767c894a9e402f0b8ff2
2018-11-12runsc: generate exec pidfile after everything is ready.Lantao Liu
PiperOrigin-RevId: 221123160 Change-Id: Ia7061d60d114d69f49aba853fe6bae3c733522b5
2018-11-09Close donated files if containerManager.Start() failsFabricio Voznika
PiperOrigin-RevId: 220869535 Change-Id: I9917e5daf02499f7aab6e2aa4051c54ff4461b9a
2018-11-09Add tests multicontainer start/stopFabricio Voznika
Each container has its respective gofer. Test that gofer can be shutdown when a container stops and that it doesn't affect other containers. PiperOrigin-RevId: 220829898 Change-Id: I2a44a3cf2a88577e6ad1133afc622bbf4a5f6591
2018-11-07Add test that volume can be mounted on top of a symlinkFabricio Voznika
PiperOrigin-RevId: 220588094 Change-Id: I18915e892ceac86eac1f89ebcadffb4fdf8d0cf6
2018-11-07Fix test --race violationFabricio Voznika
SetupContainerInRoot was setting Config.RootDir unnecessarily and causing a --race violation in TestMultiContainerDestroyStarting. PiperOrigin-RevId: 220580073 Change-Id: Ie0b28c19846106c7458a92681b708ae70f87d25a
2018-11-07AsyncBarrier should be run after all defers in destroyContainerFS.Nicolas Lacasse
destroyContainerFS must wait for all async operations to finish before returning. In an attempt to do this, we call fs.AsyncBarrier() at the end of the function. However, there are many defer'd DecRefs which end up running AFTER the AsyncBarrier() call. This CL fixes this by calling fs.AsyncBarrier() in the first defer statement, thus ensuring that it runs at the end of the function, after all other defers. PiperOrigin-RevId: 220523545 Change-Id: I5e96ee9ea6d86eeab788ff964484c50ef7f64a2f
2018-11-07Add more logging to controller.goFabricio Voznika
PiperOrigin-RevId: 220519632 Change-Id: Iaeec007fc1aa3f0b72569b288826d45f2534c4bf
2018-11-06Fix problem where crictl tests would signal both error and done channelsKevin Krakauer
PiperOrigin-RevId: 220372291 Change-Id: I054ba56a23c402c7244b476d7d6fe72084942a0e
2018-11-05Fix race between start and destroyFabricio Voznika
Before this change, a container starting up could race with destroy (aka delete) and leave processes behind. Now, whenever a container is created, Loader.processes gets a new entry. Start now expects the entry to be there, and if it's not it means that the container was deleted. I've also fixed Loader.waitPID to search for the process using the init process's PID namespace. We could use a few more tests for signal and wait. I'll send them in another cl. PiperOrigin-RevId: 220224290 Change-Id: I15146079f69904dc07d43c3b66cc343a2dab4cc4
2018-11-05Log when external signal is receivedFabricio Voznika
PiperOrigin-RevId: 220204591 Change-Id: I21a9c6f5c12a376d18da5d10c1871837c4f49ad2
2018-11-01First crictl integration tests.Kevin Krakauer
More tests will come, but it's worth getting what's done so far reviewed. PiperOrigin-RevId: 219734531 Change-Id: If15ca6e6855e3d1cc28c83b5f9c3a72cb65b2e59
2018-11-01Use spec with clean paths for goferFabricio Voznika
Otherwise the gofer's attach point may be different from sandbox when there symlinks in the path. PiperOrigin-RevId: 219730492 Change-Id: Ia9c4c2d16228c6a1a9e790e0cb673fd881003fe1
2018-11-01Add new log format that is compatible with KubernetesFabricio Voznika
Fluentd configuration uses 'log' for the log message while containerd uses 'msg'. Since we can't have a single JSON format for both, add another log format and make debug log configurable. PiperOrigin-RevId: 219729658 Change-Id: I2a6afc4034d893ab90bafc63b394c4fb62b2a7a0
2018-11-01Make error messages a bit more user friendly.Ian Lewis
Updated error messages so that it doesn't print full Go struct representations when running a new container in a sandbox. For example, this occurs frequently when commands are not found when doing a 'kubectl exec'. PiperOrigin-RevId: 219729141 Change-Id: Ic3a7bc84cd7b2167f495d48a1da241d621d3ca09
2018-11-01Close http.Response.Body after Get request.Kevin Krakauer
From https://golang.org/pkg/net/http/#Get: "When err is nil, resp always contains a non-nil resp.Body. Caller should close resp.Body when done reading from it." PiperOrigin-RevId: 219658052 Change-Id: I556e88ac4f2c90cd36ab16cd3163d1a52afc32b7
2018-10-31Make lazy open the mode of operation for fsgoferFabricio Voznika
With recent changes to 9P server, path walks are now safe inside open, create, rename and setattr calls. To simplify the code, remove the lazyopen=false mode that was used for bind mounts, and converge all mounts to using lazy open. PiperOrigin-RevId: 219508628 Change-Id: I073e7e1e2e9a9972d150eaf4cb29e553997a9b76
2018-10-30kvm: use private futexes.Adin Scannell
Use private futexes for performance and to align with other runtime uses. PiperOrigin-RevId: 219422634 Change-Id: Ief2af5e8302847ea6dc246e8d1ee4d64684ca9dd
2018-10-29Removes outdated TODO.Kevin Krakauer
PiperOrigin-RevId: 219151173 Change-Id: I73014ea648ae485692ea0d44860c87f4365055cb
2018-10-26Order feature strings by blockMichael Pratt
PiperOrigin-RevId: 218894181 Change-Id: I97d0c74175f4aa528363f768a0a85d6953ea0bfd
2018-10-25Uninstall() should not fail if a cgroup directory doesn't existAndrei Vagin
It can be occurred if two controllers are mounted together or if Uninstall() is called on a error path. PiperOrigin-RevId: 218723886 Change-Id: I69d7a3c0685a7da38527ea8b7b301dbe96268285
2018-10-24Re-enable TestPythonHello now that ptrace seccomp issue is resolved.Nicolas Lacasse
PiperOrigin-RevId: 218636184 Change-Id: I44deac3f32276d06955c5fb1e28c5970bb08f5fd
2018-10-23Track paths and provide a rename hook.Adin Scannell
This change also adds extensive testing to the p9 package via mocks. The sanity checks and type checks are moved from the gofer into the core package, where they can be more easily validated. PiperOrigin-RevId: 218296768 Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
2018-10-21Updated cleanup code to be more explicit about ignoring errors.Ian Lewis
Errors are shown as being ignored by assigning to the blank identifier. PiperOrigin-RevId: 218103819 Change-Id: I7cc7b9d8ac503a03de5504ebdeb99ed30a531cf2
2018-10-20Add more unimplemented syscall eventsFabricio Voznika
Added events for *ctl syscalls that may have multiple different commands. For runsc, each syscall event is only logged once. For *ctl syscalls, use the cmd as identifier, not only the syscall number. PiperOrigin-RevId: 218015941 Change-Id: Ie3c19131ae36124861e9b492a7dbe1765d9e5e59
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-18Resolve mount paths while setting up root fs mountFabricio Voznika
It's hard to resolve symlinks inside the sandbox because rootfs and mounts may be read-only, forcing us to create mount points inside lower layer of an overlay, **before** the volumes are mounted. Since the destination must already be resolved outside the sandbox when creating mounts, take this opportunity to rewrite the spec with paths resolved. "runsc boot" will use the "resolved" spec to load mounts. In addition, symlink traversals were disabled while mounting containers inside the sandbox. It haven't been able to write a good test for it. So I'm relying on manual tests for now. PiperOrigin-RevId: 217749904 Change-Id: I7ac434d5befd230db1488446cda03300cc0751a9
2018-10-18Skip TestPythonHello on ptrace platform while we debug the issue.Nicolas Lacasse
PiperOrigin-RevId: 217743078 Change-Id: I47fabd88139b968b6183bcc0340065fdbbc1d40d
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