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2019-08-06Make loading container in a sandbox more robustFabricio Voznika
PiperOrigin-RevId: 262071646
2019-08-02Stops container if gofer is killedFabricio Voznika
Each gofer now has a goroutine that polls on the FDs used to communicate with the sandbox. The respective gofer is destroyed if any of the FDs is closed. Closes #601 PiperOrigin-RevId: 261383725
2019-07-03Avoid importing platforms from many source filesAndrei Vagin
PiperOrigin-RevId: 256494243
2019-06-27Fix various spelling issues in the documentationMichael Pratt
Addresses obvious typos, in the documentation only. COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/443 from Pixep:fix/documentation-spelling 4d0688164eafaf0b3010e5f4824b35d1e7176d65 PiperOrigin-RevId: 255477779
2019-06-18gvisor/kokoro: don't modify tests names in the BUILD fileAndrei Vagin
PiperOrigin-RevId: 253746380
2019-06-13Update canonical repository.Adin Scannell
This can be merged after: https://github.com/google/gvisor-website/pull/77 or https://github.com/google/gvisor-website/pull/78 PiperOrigin-RevId: 253132620
2019-06-12Allow 'runsc do' to run without rootFabricio Voznika
'--rootless' flag lets a non-root user execute 'runsc do'. The drawback is that the sandbox and gofer processes will run as root inside a user namespace that is mapped to the caller's user, intead of nobody. And network is defaulted to '--network=host' inside the root network namespace. On the bright side, it's very convenient for testing: runsc --rootless do ls runsc --rootless do curl www.google.com PiperOrigin-RevId: 252840970
2019-06-06Add multi-fd support to fdbased endpoint.Bhasker Hariharan
This allows an fdbased endpoint to have multiple underlying fd's from which packets can be read and dispatched/written to. This should allow for higher throughput as well as better scalability of the network stack as number of connections increases. Updates #231 PiperOrigin-RevId: 251852825
2019-05-14kokoro: run tests with a default docker container runtimeAndrei Vagin
We want to know that our environment set up properly and docker tests pass with a native runtime. PiperOrigin-RevId: 248229294 Change-Id: I06c221e5eeed6e01bdd1aa935333c57e8eadc498
2019-05-13gvisor/runsc/tests: set timeout for http.Get()Andrei Vagin
WaitForHTTP tries GET requests on a port until the call succeeds or timeout. But we want to be sure that one of our attempts will not stuck for the whole timeout. All timeouts are increased to 30 seconds, because test cases with smaller timeouts fail sometimes even for the native container runtime (runc). PiperOrigin-RevId: 247888467 Change-Id: I03cfd3275286bc686a78fd26da43231d20667851
2019-05-03Fix runsc restore to be compatible with docker start --checkpoint ...Andrei Vagin
Change-Id: I02b30de13f1393df66edf8829fedbf32405d18f8 PiperOrigin-RevId: 246621192
2019-05-03gvisor/kokoro: save runsc logsAndrei Vagin
PiperOrigin-RevId: 246542315 Change-Id: Ia9ba2bc104e0af3277d3b6102122c13d320ea802
2019-04-29Change copyright notice to "The gVisor Authors"Michael Pratt
Based on the guidelines at https://opensource.google.com/docs/releasing/authors/. 1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./' 2. Manual fixup of "Google Inc" references. 3. Add AUTHORS file. Authors may request to be added to this file. 4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS. Fixes #209 PiperOrigin-RevId: 245823212 Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-26Make raw sockets a toggleable feature disabled by default.Kevin Krakauer
PiperOrigin-RevId: 245511019 Change-Id: Ia9562a301b46458988a6a1f0bbd5f07cbfcb0615
2019-02-25Fix cgroup when path is relativeFabricio Voznika
This can happen when 'docker run --cgroup-parent=' flag is set. PiperOrigin-RevId: 235645559 Change-Id: Ieea3ae66939abadab621053551bf7d62d412e7ee
2019-01-31gvisor/gofer: Use pivot_root instead of chrootAndrei Vagin
PiperOrigin-RevId: 231864273 Change-Id: I8545b72b615f5c2945df374b801b80be64ec3e13
2019-01-31Remove license commentsMichael Pratt
Nothing reads them and they can simply get stale. Generated with: $ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD PiperOrigin-RevId: 231818945 Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
2018-12-17Expose internal testing flagMichael Pratt
Never to used outside of runsc tests! PiperOrigin-RevId: 225919013 Change-Id: Ib3b14aa2a2564b5246fb3f8933d95e01027ed186
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
2018-11-20Use 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
2018-11-20Internal 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
2018-11-13Internal 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
2018-11-07Add 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
2018-11-06Fix problem where crictl tests would signal both error and done channelsKevin Krakauer
PiperOrigin-RevId: 220372291 Change-Id: I054ba56a23c402c7244b476d7d6fe72084942a0e
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
2018-11-01Close 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
2018-10-24Re-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
2018-10-19Use 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
2018-10-17runsc: Support job control signals for the root container.Nicolas Lacasse
Now containers run with "docker run -it" support control characters like ^C and ^Z. This required refactoring our signal handling a bit. Signals delivered to the "runsc boot" process are turned into loader.Signal calls with the appropriate delivery mode. Previously they were always sent directly to PID 1. PiperOrigin-RevId: 217566770 Change-Id: I5b7220d9a0f2b591a56335479454a200c6de8732
2018-10-11Sandbox cgroup testsFabricio Voznika
Verify that cgroup is being properly set. PiperOrigin-RevId: 216736137 Change-Id: I0e27fd604eca67e7dd2e3548dc372ca9cc416309
2018-10-10Add sandbox to cgroupFabricio Voznika
Sandbox creation uses the limits and reservations configured in the OCI spec and set cgroup options accordinly. Then it puts both the sandbox and gofer processes inside the cgroup. It also allows the cgroup to be pre-configured by the caller. If the cgroup already exists, sandbox and gofer processes will join the cgroup but it will not modify the cgroup with spec limits. PiperOrigin-RevId: 216538209 Change-Id: If2c65ffedf55820baab743a0edcfb091b89c1019
2018-10-09Add tests to verify gofer is chroot'edFabricio Voznika
PiperOrigin-RevId: 216472439 Change-Id: Ic4cb86c8e0a9cb022d3ceed9dc5615266c307cf9
2018-10-03Fix sandbox chrootFabricio Voznika
Sandbox was setting chroot, but was not chaging the working dir. Added test to ensure this doesn't happen in the future. PiperOrigin-RevId: 215676270 Change-Id: I14352d3de64a4dcb90e50948119dc8328c9c15e1
2018-10-01runsc: Support job control signals in "exec -it".Nicolas Lacasse
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
2018-10-01Make multi-container the default mode for runscFabricio Voznika
And remove multicontainer option. PiperOrigin-RevId: 215236981 Change-Id: I9fd1d963d987e421e63d5817f91a25c819ced6cb
2018-09-28Made a few changes to make testutil.Docker easier to useFabricio Voznika
PiperOrigin-RevId: 215023376 Change-Id: I139569bd15c013e5dd0f60d0c98a64eaa0ba9e8e
2018-09-28Add ruby image testsFabricio Voznika
PiperOrigin-RevId: 215009066 Change-Id: I54ab920fa649cf4d0817f7cb8ea76f9126523330
2018-09-28Switch to root in userns when CAP_SYS_CHROOT is also missingFabricio Voznika
Some tests check current capabilities and re-run the tests as root inside userns if required capabibilities are missing. It was checking for CAP_SYS_ADMIN only, CAP_SYS_CHROOT is also required now. PiperOrigin-RevId: 214949226 Change-Id: Ic81363969fa76c04da408fae8ea7520653266312
2018-09-21Run gofmt -s on everythingIan Gudger
PiperOrigin-RevId: 214040901 Change-Id: I74d79497a053da3624921ad2b7c5193ca4a87942
2018-09-18Handle children processes better in testsFabricio Voznika
Reap children more systematically in container tests. Previously, container_test was taking ~5 mins to run because constainer.Destroy() would timeout waiting for the sandbox process to exit. Now the test running in less than a minute. Also made the contract around Container and Sandbox destroy clearer. PiperOrigin-RevId: 213527471 Change-Id: Icca84ee1212bbdcb62bdfc9cc7b71b12c6d1688d
2018-09-07Remove '--file-access=direct' optionFabricio Voznika
It was used before gofer was implemented and it's not supported anymore. BREAKING CHANGE: proxy-shared and proxy-exclusive options are now: shared and exclusive. PiperOrigin-RevId: 212017643 Change-Id: If029d4073fe60583e5ca25f98abb2953de0d78fd
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