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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
2018-05-15Refactor the Sandbox package into Sandbox + Container.Nicolas Lacasse
This is a necessary prerequisite for supporting multiple containers in a single sandbox. All the commands (in cmd package) now call operations on Containers (container package). When a Container first starts, it will create a Sandbox with the same ID. The Sandbox class is now simpler, as it only knows how to create boot/gofer processes, and how to forward commands into the running boot process. There are TODOs sprinkled around for additional support for multiple containers. Most notably, we need to detect when a container is intended to run in an existing sandbox (by reading the metadata), and then have some way to signal to the sandbox to start a new container. Other urpc calls into the sandbox need to pass the container ID, so the sandbox can run the operation on the given container. These are only half-plummed through right now. PiperOrigin-RevId: 196688269 Change-Id: I1ecf4abbb9dd8987a53ae509df19341aaf42b5b0
2018-05-10Display the current git revision in the info blockChanwit Kaewkasi
Change-Id: I9737cc680968033ba82c95bb04cc482fcaa12642 PiperOrigin-RevId: 196192683
2018-05-09Return better errors from Docker when runsc fails to start.Nicolas Lacasse
Two changes in this CL: First, make the "boot" process sleep when it encounters an error to give the controller time to send the error back to the "start" process. Otherwise the "boot" process exits immediately and the control connection errors with EOF. Secondly, open the log file with O_APPEND, not O_TRUNC. Docker uses the same log file for all runtime commands, and setting O_TRUNC causes them to get destroyed. Furthermore, containerd parses these log files in the event of an error, and it does not like the file being truncated out from underneath it. Now, when trying to run a binary that does not exist in the image, the error message is more reasonable: $ docker run alpine /not/found docker: Error response from daemon: OCI runtime start failed: /usr/local/google/docker/runtimes/runscd did not terminate sucessfully: error starting sandbox: error starting application [/not/found]: failed to create init process: no such file or directory Fixes #32 PiperOrigin-RevId: 196027084 Change-Id: Iabc24c0bdd8fc327237acc051a1655515f445e68
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463