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path: root/libpod/define/errors.go
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* 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>
* Print errors from individual containers in podsMatthew Heon2020-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | The infra/abi code for pods was written in a flawed way, assuming that the map[string]error containing individual container errors was only set when the global error for the pod function was nil; that is not accurate, and we are actually *guaranteed* to set the global error when any individual container errors. Thus, we'd never actually include individual container errors, because the infra code assumed that err being set meant everything failed and no container operations were attempted. We were originally setting the cause of the error to something nonsensical ("container already exists"), so I made a new error indicating that some containers in the pod failed. We can then ignore that error when building the report on the pod operation and actually return errors from individual containers. Unfortunately, this exposed another weakness of the infra code, which was discarding the container IDs. Errors from individual containers are not guaranteed to identify which container they came from, hence the use of map[string]error in the Pod API functions. Rather than restructuring the structs we return from pkg/infra, I just wrapped the returned errors with a message including the ID of the container. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* podman untag: error if tag doesn't existValentin Rothberg2020-06-24
| | | | | | | | | | | Throw an error if a specified tag does not exist. Also make sure that the user input is normalized as we already do for `podman tag`. To prevent regressions, add a set of end-to-end and systemd tests. Last but not least, update the docs and add bash completions. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Do not share container log driver for execMatthew Heon2020-06-17
| | | | | | | | | | | | | | | | | | | | | When the container uses journald logging, we don't want to automatically use the same driver for its exec sessions. If we do we will pollute the journal (particularly in the case of healthchecks) with large amounts of undesired logs. Instead, force exec sessions logs to file for now; we can add a log-driver flag later (we'll probably want to add a `podman logs` command that reads exec session logs at the same time). As part of this, add support for the new 'none' logs driver in Conmon. It will be the default log driver for exec sessions, and can be optionally selected for containers. Great thanks to Joe Gooch (mrwizard@dok.org) for adding support to Conmon for a null log driver, and wiring it in here. Fixes #6555 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* 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>
* V2 Restore rmi testsJhon Honce2020-04-22
| | | | | | | * Introduced define.ErrImageInUse to assist in determining the exit code without resorting string searches. Signed-off-by: Jhon Honce <jhonce@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>
* Add basic deadlock detection for container start/removeMatthew Heon2020-02-24
| | | | | | | | | | | | | | | We can easily tell if we're going to deadlock by comparing lock IDs before actually taking the lock. Add a few checks for this in common places where deadlocks might occur. This does not yet cover pod operations, where detection is more difficult (and costly) due to the number of locks being involved being higher than 2. Also, add some error wrapping on the Podman side, so we can tell people to use `system renumber` when it occurs. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Ensure volumes can be removed when they fail to unmountMatthew Heon2019-10-14
| | | | | | | | | | | | | | | | | | | | Also, ensure that we don't try to mount them without root - it appears that it can somehow not error and report that mount was successful when it clearly did not succeed, which can induce this case. We reuse the `--force` flag to indicate that a volume should be removed even after unmount errors. It seems fairly natural to expect that --force will remove a volume that is otherwise presenting problems. Finally, ignore EINVAL on unmount - if the mount point no longer exists our job is done. Fixes: #4247 Fixes: #4248 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* rm: add containers eviction with `rm --force`Marco Vedovati2019-09-25
| | | | | | | | | Add ability to evict a container when it becomes unusable. This may happen when the host setup changes after a container creation, making it impossible for that container to be used or removed. Evicting a container is done using the `rm --force` command. Signed-off-by: Marco Vedovati <mvedovati@suse.com>
* Add support for launching containers without CGroupsMatthew Heon2019-09-10
| | | | | | | This is mostly used with Systemd, which really wants to manage CGroups itself when managing containers via unit file. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add conmon probe to runtime constructionPeter Hunt2019-08-08
| | | | | | Now, when a user's conmon is out of date, podman will tell them Signed-off-by: Peter Hunt <pehunt@redhat.com>
* Implement conmon execPeter Hunt2019-07-22
| | | | | | | | | | | | | | | | | | | | | | This includes: Implement exec -i and fix some typos in description of -i docs pass failed runtime status to caller Add resize handling for a terminal connection Customize exec systemd-cgroup slice fix healthcheck fix top add --detach-keys Implement podman-remote exec (jhonce) * Cleanup some orphaned code (jhonce) adapt remote exec for conmon exec (pehunt) Fix healthcheck and exec to match docs Introduce two new OCIRuntime errors to more comprehensively describe situations in which the runtime can error Use these different errors in branching for exit code in healthcheck and exec Set conmon to use new api version Signed-off-by: Jhon Honce <jhonce@redhat.com> Signed-off-by: Peter Hunt <pehunt@redhat.com>
* golangci-lint round #3baude2019-07-21
| | | | | | | this is the third round of preparing to use the golangci-lint on our code base. Signed-off-by: baude <bbaude@redhat.com>
* remove libpod from mainbaude2019-06-25
the compilation demands of having libpod in main is a burden for the remote client compilations. to combat this, we should move the use of libpod structs, vars, constants, and functions into the adapter code where it will only be compiled by the local client. this should result in cleaner code organization and smaller binaries. it should also help if we ever need to compile the remote client on non-Linux operating systems natively (not cross-compiled). Signed-off-by: baude <bbaude@redhat.com>