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2018-10-11Add bare bones unsupported syscall loggingFabricio Voznika
This change introduces a new flags to create/run called --user-log. Logs to this files are visible to users and are meant to help debugging problems with their images and containers. For now only unsupported syscalls are sent to this log, and only minimum support was added. We can build more infrastructure around it as needed. PiperOrigin-RevId: 216735977 Change-Id: I54427ca194604991c407d49943ab3680470de2d0
2018-10-10Support for older Linux kernels without getrandomJonathan Giannuzzi
Change-Id: I1fb9f5b47a264a7617912f6f56f995f3c4c5e578 PiperOrigin-RevId: 216591484
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
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
2018-06-20Add '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
2018-06-18Modified 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
2018-06-12runsc: enable terminals in the sandbox.Kevin Krakauer
runsc now mounts the devpts filesystem, so you get a real terminal using ssh+sshd. PiperOrigin-RevId: 200244830 Change-Id: If577c805ad0138fda13103210fa47178d8ac6605
2018-06-08Drop capabilities not needed by GoferFabricio Voznika
PiperOrigin-RevId: 199808391 Change-Id: Ib37a4fb6193dc85c1f93bc16769d6aa41854b9d4
2018-05-17Push signal-delivery and wait into the sandbox.Nicolas Lacasse
This is another step towards multi-container support. Previously, we delivered signals directly to the sandbox process (which then forwarded the signal to PID 1 inside the sandbox). Similarly, we waited on a container by waiting on the sandbox process itself. This approach will not work when there are multiple containers inside the sandbox, and we need to signal/wait on individual containers. This CL adds two new messages, ContainerSignal and ContainerWait. These messages include the id of the container to signal/wait. The controller inside the sandbox receives these messages and signals/waits on the appropriate process inside the sandbox. The container id is plumbed into the sandbox, but it currently is not used. We still end up signaling/waiting on PID 1 in all cases. Once we actually have multiple containers inside the sandbox, we will need to keep some sort of map of container id -> pid (or possibly pid namespace), and signal/kill the appropriate process for the container. PiperOrigin-RevId: 197028366 Change-Id: I07b4d5dc91ecd2affc1447e6b4bdd6b0b7360895
2018-05-01Add support for ping socketsIan Gudger
PiperOrigin-RevId: 195049322 Change-Id: I09f6dd58cf10a2e50e53d17d2823d540102913c5
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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