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path: root/libpod/oci_missing.go
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* use c/common code for resize and CopyDetachablePaul Holzinger2022-07-06
| | | | | | | | | Since conmon-rs also uses this code we moved it to c/common. Now podman should has this also to prevent duplication. [NO NEW TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* libpod: switch to golang native error wrappingSascha Grunert2022-07-05
| | | | | | | | | We now use the golang error wrapping format specifier `%w` instead of the deprecated github.com/pkg/errors package. [NO NEW TESTS NEEDED] Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
* Move Attach under the OCI Runtime interfaceMatthew Heon2022-05-26
| | | | | | | | | | | | | | | | | | | | | | | With conmon-rs on the horizon, we need to disentangle Libpod from legacy Conmon to the greatest extent possible. There are definitely opportunities for codesharing between the two, but we have to assume the implementations will be largely disjoint given the different architectures. Fortunately, most of the work has already been done in the past. The conmon-managed OCI runtime mostly sits behind an interface, with a few exceptions - the most notable of those being attach. This PR thus moves Attach behind the interface, to ensure that we can have attach implementations that don't use our existing unix socket streaming if necessary. Still to-do is conmon cleanup. There's a lot of code that removes Conmon-specific files, or kills the Conmon PID, and all of it will need to be refactored behind the interface. [NO NEW TESTS NEEDED] Just moving some things around. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* bump go module to version 4Valentin Rothberg2022-01-18
| | | | | | | | | | | | | Automated for .go files via gomove [1]: `gomove github.com/containers/podman/v3 github.com/containers/podman/v4` Remaining files via vgrep [2]: `vgrep github.com/containers/podman/v3` [1] https://github.com/KSubedi/gomove [2] https://github.com/vrothberg/vgrep Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Added optional container restore statisticsAdrian Reber2021-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the parameter '--print-stats' to 'podman container restore'. With '--print-stats' Podman will measure how long Podman itself, the OCI runtime and CRIU requires to restore a checkpoint and print out these information. CRIU already creates process restore statistics which are just read in addition to the added measurements. In contrast to just printing out the ID of the restored container, Podman will now print out JSON: # podman container restore --latest --print-stats { "podman_restore_duration": 305871, "container_statistics": [ { "Id": "47b02e1d474b5d5fe917825e91ac653efa757c91e5a81a368d771a78f6b5ed20", "runtime_restore_duration": 140614, "criu_statistics": { "forking_time": 5, "restore_time": 67672, "pages_restored": 14 } } ] } The output contains 'podman_restore_duration' which contains the number of microseconds Podman required to restore the checkpoint. The output also includes 'runtime_restore_duration' which is the time the runtime needed to restore that specific container. Each container also includes 'criu_statistics' which displays the timing information collected by CRIU. Signed-off-by: Adrian Reber <areber@redhat.com>
* Added optional container checkpointing statisticsAdrian Reber2021-11-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the parameter '--print-stats' to 'podman container checkpoint'. With '--print-stats' Podman will measure how long Podman itself, the OCI runtime and CRIU requires to create a checkpoint and print out these information. CRIU already creates checkpointing statistics which are just read in addition to the added measurements. In contrast to just printing out the ID of the checkpointed container, Podman will now print out JSON: # podman container checkpoint --latest --print-stats { "podman_checkpoint_duration": 360749, "container_statistics": [ { "Id": "25244244bf2efbef30fb6857ddea8cb2e5489f07eb6659e20dda117f0c466808", "runtime_checkpoint_duration": 177222, "criu_statistics": { "freezing_time": 100657, "frozen_time": 60700, "memdump_time": 8162, "memwrite_time": 4224, "pages_scanned": 20561, "pages_written": 2129 } } ] } The output contains 'podman_checkpoint_duration' which contains the number of microseconds Podman required to create the checkpoint. The output also includes 'runtime_checkpoint_duration' which is the time the runtime needed to checkpoint that specific container. Each container also includes 'criu_statistics' which displays the timing information collected by CRIU. Signed-off-by: Adrian Reber <areber@redhat.com>
* Fix resize race with podman exec -itPaul Holzinger2021-06-16
| | | | | | | | | | | When starting a process with `podman exec -it` the terminal is resized after the process is started. To fix this allow exec start to accept the terminal height and width as parameter and let it resize right before the process is started. Fixes #10560 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* oci: drop ExecContainerCleanupPeter Hunt2021-04-16
| | | | | | without the socketsDir, we no longer need to worry about cleaning up after an exec. Signed-off-by: Peter Hunt <pehunt@redhat.com>
* prune remotecommand dependencybaude2021-02-25
| | | | | | | | | | | prune a dependency that was only being used for a simple struct. Should correct checksum issue on tarballs [NO TESTS NEEDED] Fixes: #9355 Signed-off-by: baude <bbaude@redhat.com>
* bump go module to v3Valentin Rothberg2021-02-22
| | | | | | | | | We missed bumping the go module, so let's do it now :) * Automated go code with github.com/sirkon/go-imports-rename * Manually via `vgrep podman/v2` the rest Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Send HTTP Hijack headers after successful attachMatthew Heon2020-08-27
| | | | | | | | | | | | | | | | | | | | | | | | | Our previous flow was to perform a hijack before passing a connection into Libpod, and then Libpod would attach to the container's attach socket and begin forwarding traffic. A problem emerges: we write the attach header as soon as the attach complete. As soon as we write the header, the client assumes that all is ready, and sends a Start request. This Start may be processed *before* we successfully finish attaching, causing us to lose output. The solution is to handle hijacking inside Libpod. Unfortunately, this requires a downright extensive refactor of the Attach and HTTP Exec StartAndAttach code. I think the result is an improvement in some places (a lot more errors will be handled with a proper HTTP error code, before the hijack occurs) but other parts, like the relocation of printing container logs, are just *bad*. Still, we need this fixed now to get CI back into good shape... Fixes #7195 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Switch all references to github.com/containers/libpod -> podmanDaniel J Walsh2020-07-28
| | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* move go module to v2Valentin Rothberg2020-07-06
| | | | | | | | | | | | | | | With the advent of Podman 2.0.0 we crossed the magical barrier of go modules. While we were able to continue importing all packages inside of the project, the project could not be vendored anymore from the outside. Move the go module to new major version and change all imports to `github.com/containers/libpod/v2`. The renaming of the imports was done via `gomove` [1]. [1] https://github.com/KSubedi/gomove Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Turn on More lintersDaniel J Walsh2020-06-15
| | | | | | | | | - misspell - prealloc - unparam - nakedret Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Ensure Conmon is alive before waiting for exit fileMatthew Heon2020-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This came out of a conversation with Valentin about systemd-managed Podman. He discovered that unit files did not properly handle cases where Conmon was dead - the ExecStopPost `podman rm --force` line was not actually removing the container, but interestingly, adding a `podman cleanup --rm` line would remove it. Both of these commands do the same thing (minus the `podman cleanup --rm` command not force-removing running containers). Without a running Conmon instance, the container process is still running (assuming you killed Conmon with SIGKILL and it had no chance to kill the container it managed), but you can still kill the container itself with `podman stop` - Conmon is not involved, only the OCI Runtime. (`podman rm --force` and `podman stop` use the same code to kill the container). The problem comes when we want to get the container's exit code - we expect Conmon to make us an exit file, which it's obviously not going to do, being dead. The first `podman rm` would fail because of this, but importantly, it would (after failing to retrieve the exit code correctly) set container status to Exited, so that the second `podman cleanup` process would succeed. To make sure the first `podman rm --force` succeeds, we need to catch the case where Conmon is already dead, and instead of waiting for an exit file that will never come, immediately set the Stopped state and remove an error that can be caught and handled. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Add backend code for detached execMatthew Heon2020-05-20
| | | | | | | | | | | | As part of the massive exec rework, I stubbed out a function for non-detached exec, which is implemented here. It's largely similar to the existing exec functions, but missing a few pieces. This also involves implemented a new OCI runtime call for detached exec. Again, very similar to the other functions, but with a few missing pieces. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add an initial implementation of HTTP-forwarded execMatthew Heon2020-05-14
| | | | | | | | | | | | | | | This is heavily based off the existing exec implementation, but does not presently share code with it, to try and ensure we don't break anything. Still to do: - Add code sharing with existing exec implementation - Wire in the frontend (exec HTTP endpoint) - Move all exec-related code in oci_conmon_linux.go into a new file - Investigate code sharing between HTTP attach and HTTP exec. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Add support for selecting kvm and systemd labelsDaniel J Walsh2020-04-15
| | | | | | | | | | | | In order to better support kata containers and systemd containers container-selinux has added new types. Podman should execute the container with an SELinux process label to match the container type. Traditional Container process : container_t KVM Container Process: containre_kvm_t PID 1 Init process: container_init_t Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* refactor infoBrent Baude2020-04-06
| | | | | | the current implementation of info, while typed, is very loosely done so. we need stronger types for our apiv2 implmentation and bindings. Signed-off-by: Brent Baude <bbaude@redhat.com>
* Add support for containers.confDaniel J Walsh2020-03-27
| | | | | | | vendor in c/common config pkg for containers.conf Signed-off-by: Qi Wang qiwan@redhat.com Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add structure for new exec session tracking to DBMatthew Heon2020-03-18
| | | | | | | | | | | | | | | | | | | | | | | As part of the rework of exec sessions, we need to address them independently of containers. In the new API, we need to be able to fetch them by their ID, regardless of what container they are associated with. Unfortunately, our existing exec sessions are tied to individual containers; there's no way to tell what container a session belongs to and retrieve it without getting every exec session for every container. This adds a pointer to the container an exec session is associated with to the database. The sessions themselves are still stored in the container. Exec-related APIs have been restructured to work with the new database representation. The originally monolithic API has been split into a number of smaller calls to allow more fine-grained control of lifecycle. Support for legacy exec sessions has been retained, but in a deprecated fashion; we should remove this in a few releases. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Revert "exec: get the exit code from sync pipe instead of file"Matthew Heon2020-03-09
| | | | | | | | | This reverts commit 4b72f9e4013411208751df2a92ab9f322d4da5b2. Continues what began with revert of d3d97a25e8c87cf741b2e24ac01ef84962137106 in previous commit. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* exec: get the exit code from sync pipe instead of filePeter Hunt2020-03-03
| | | | | | | | Before, we were getting the exit code from the file, in which we waited an arbitrary amount of time (5 seconds) for the file, and segfaulted if we didn't find it. instead, we should be a bit more certain conmon has sent the exit code. Luckily, it sends the exit code along the sync pipe fd, so we can read it from there Adapt the ExecContainer interface to pass along a channel to get the pid and exit code from conmon, to be able to read both from the pipe Signed-off-by: Peter Hunt <pehunt@redhat.com>
* Add an API for Attach over HTTP APIMatthew Heon2020-01-16
| | | | | | | | | | | | | | | | | | | | | | | | | | The new APIv2 branch provides an HTTP-based remote API to Podman. The requirements of this are, unfortunately, incompatible with the existing Attach API. For non-terminal attach, we need append a header to what was copied from the container, to multiplex STDOUT and STDERR; to do this with the old API, we'd need to copy into an intermediate buffer first, to handle the headers. To avoid this, provide a new API to handle all aspects of terminal and non-terminal attach, including closing the hijacked HTTP connection. This might be a bit too specific, but for now, it seems to be the simplest approach. At the same time, add a Resize endpoint. This needs to be a separate endpoint, so our existing channel approach does not work here. I wanted to rework the rest of attach at the same time (some parts of it, particularly how we start the Attach session and how we do resizing, are (in my opinion) handled much better here. That may still be on the table, but I wanted to avoid breaking existing APIs in this already massive change. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Reap exec sessions on cleanup and removalMatthew Heon2019-12-12
| | | | | | | | | | | | | | | | | | | | | | We currently rely on exec sessions being removed from the state by the Exec() API itself, on detecting the session stopping. This is not a reliable method, though. The Podman frontend for exec could be killed before the session ended, or another Podman process could be holding the lock and prevent update (most notable in `run --rm`, when a container with an active exec session is stopped). To resolve this, add a function to reap active exec sessions from the state, and use it on cleanup (to clear sessions after the container stops) and remove (to do the same when --rm is passed). This is a bit more complicated than it ought to be because Kata and company exist, and we can't guarantee the exec session has a PID on the host, so we have to plumb this through to the OCI runtime. Fixes #4666 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add a MissingRuntime implementationMatthew Heon2019-10-15
When a container is created with a given OCI runtime, but then it is uninstalled or removed from the configuration file, Libpod presently reacts very poorly. The EvictContainer code can potentially remove these containers, but we still can't see them in `podman ps` (aside from the massive logrus.Errorf messages they create). Providing a minimal OCI runtime implementation for missing runtimes allows us to behave better. We'll be able to retrieve containers from the database, though we still pop up an error for each missing runtime. For containers which are stopped, we can remove them as normal. Signed-off-by: Matthew Heon <matthew.heon@pm.me>