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path: root/pkg/domain/entities/containers.go
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* Network interfacePaul Holzinger2021-08-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement a new network interface to abstract CNI from libpod. The interface is implemented for the CNI backend but in the future we can add more backends. The code is structured in three new packages: - `libpod/network/types`: contains the interface definition and the necessary types for it. - `libpod/network/cni` contains the interface implementation for the CNI backend. - `libpod/network/util` a set of utility functions related to networking. The CNI package uses ginkgo style unit tests. To test Setup/Teardown the test must be run as root. Each test will run in their own namespace to make the test independent from the host environment. New features with the CNI backend: - The default network will be created in memory if it does not exists on disk. - It can set more than one static IP per container network. - Networks are loaded once from disk and only if this interface is used, e.g. for commands such as `podman info` networks are not loaded. This reduces unnecessary disk IO. This commit only adds the interface it is not wired into libpod. This requires a lot of breaking changes which will be done in a followup commit. Once this is integrated into libpod the current network code under `libpod/network` should be removed. Also the dependency on OCICNI should be dropped. Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Merge pull request #11003 from pascomnet/f_statsopenshift-ci[bot]2021-08-04
|\ | | | | stats: add a interval parameter to cli and api stats streaming
| * stats: add a interval parameter to cli and api stream modeThomas Weber2021-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | podman stats polled by default in a 1 sec period. This can put quite some load on a machine if you run many containers. The default value is now 5 seconds. You can change this interval with a new, optional, --interval, -i cli flag. The api request got also a interval query parameter for the same purpose. Additionally a unused const was removed. Api and cli will fail the request if a 0 or negative value is passed in. Signed-off-by: Thomas Weber <towe75@googlemail.com>
* | Merge pull request #10910 from ↵OpenShift Merge Robot2021-07-28
|\ \ | | | | | | | | | | | | adrianreber/2021-07-12-checkpoint-restore-into-pod Add support for checkpoint/restore into and out of pods
| * | Support checkpoint/restore with podsAdrian Reber2021-07-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support to checkpoint containers out of pods and restore container into pods. It is only possible to restore a container into a pod if it has been checkpointed out of pod. It is also not possible to restore a non pod container into a pod. The main reason this does not work is the PID namespace. If a non pod container is being restored in a pod with a shared PID namespace, at least one process in the restored container uses PID 1 which is already in use by the infrastructure container. If someone tries to restore container from a pod with a shared PID namespace without a shared PID namespace it will also fail because the resulting PID namespace will not have a PID 1. Signed-off-by: Adrian Reber <areber@redhat.com>
* | | support container to container copyMehul Arora2021-07-27
|/ / | | | | | | | | | | | | | | | | Implement container to container copy. Previously data could only be copied from/to the host. Fixes: #7370 Co-authored-by: Mehul Arora <aroram18@mcmaster.ca> Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* / Implemented --until flag for libpod's container logscdoern2021-07-22
|/ | | | | | | compat containers/logs was missing actual usage of until query param. This led me to implement the until param for libpod's container logs as well. Added e2e tests. Signed-off-by: cdoern <cdoern@redhat.com>
* Implement --archive flag for podman cpMatej Vasek2021-07-01
| | | | Signed-off-by: Matej Vasek <mvasek@redhat.com>
* Merge pull request #10381 from adrianreber/2021-05-18-publishOpenShift Merge Robot2021-06-07
|\ | | | | Add --publish to container restore
| * Allow changing of port forward rules on restoreAdrian Reber2021-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Restored containers, until now, had the same port mappings as the original started container. This commit adds the parameter '--publish' to 'podman container restore' with the same semantic as during create/run. With this change it is possible to create a copy from a container with a '--publish' rule and replace the original '--publish' setting with a new one. # podman run -p 2345:8080 container # podman container checkpoint -l --export=dump.tar # podman container restore -p 5432:8080 --import=dump.tar The restored container will now listen on localhost:5432 instead of localhost:2345 as the original created container. Signed-off-by: Adrian Reber <areber@redhat.com>
* | Add parameter to specify checkpoint archive compressionAdrian Reber2021-06-07
|/ | | | | | | | | | | | | | | The checkpoint archive compression was hardcoded to `archive.Gzip`. There have been requests to make the used compression algorithm selectable. There was especially the request to not compress the checkpoint archive to be able to create faster checkpoints when not compressing it. This also changes the default from `gzip` to `zstd`. This change should not break anything as the restore code path automatically handles whatever compression the user provides during restore. Signed-off-by: Adrian Reber <areber@redhat.com>
* Add restart-policy to container filters & --filter to podman startBoaz Shuster2021-05-06
| | | | Signed-off-by: Boaz Shuster <boaz.shuster.github@gmail.com>
* Add --all to podman startBoaz Shuster2021-05-03
| | | | | Signed-off-by: Boaz Shuster <boaz.shuster.github@gmail.com> Co-authored-by: Ed Santiago <santiago@redhat.com>
* podman cp: support copying on tmpfs mountsValentin Rothberg2021-03-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Traditionally, the path resolution for containers has been resolved on the *host*; relative to the container's mount point or relative to specified bind mounts or volumes. While this works nicely for non-running containers, it poses a problem for running ones. In that case, certain kinds of mounts (e.g., tmpfs) will not resolve correctly. A tmpfs is held in memory and hence cannot be resolved relatively to the container's mount point. A copy operation will succeed but the data will not show up inside the container. To support these kinds of mounts, we need to join the *running* container's mount namespace (and PID namespace) when copying. Note that this change implies moving the copy and stat logic into `libpod` since we need to keep the container locked to avoid race conditions. The immediate benefit is that all logic is now inside `libpod`; the code isn't scattered anymore. Further note that Docker does not support copying to tmpfs mounts. Tests have been extended to cover *both* path resolutions for running and created containers. New tests have been added to exercise the tmpfs-mount case. For the record: Some tests could be improved by using `start -a` instead of a start-exec sequence. Unfortunately, `start -a` is flaky in the CI which forced me to use the more expensive start-exec option. Signed-off-by: Valentin Rothberg <rothberg@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>
* podman kill should report rawInput not container idDaniel J Walsh2021-02-16
| | | | | | | Docker always reports back the users input, not the full id, we should do the same. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* When stopping a container, print rawInputDaniel J Walsh2021-02-16
| | | | | | | | | | | When we stop a container we are printing the full id, this does not match Docker behaviour or the start behavior. We should be printing the users rawInput when we successfully stop the container. Fixes: https://github.com/containers/podman/issues/9386 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Improve ContainerEngine.ContainerWait()Matej Vasek2021-02-03
| | | | Signed-off-by: Matej Vasek <mvasek@redhat.com>
* Switch podman stop/kill/wait handlers to use abiDaniel J Walsh2021-01-29
| | | | | | | | | | | | Change API Handlers to use the same functions that the local podman uses. At the same time: implement remote API for --all and --ignore flags for podman stop implement remote API for --all flags for podman stop Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* podman-remote ps --external --pod --sort do not work.Daniel J Walsh2021-01-27
| | | | | | | | | | Fixup the bindings and the handling of the --external --por and --sort flags. The --storage option was renamed --external, make sure we use external up and down the stack. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Fix handling of container removeDaniel J Walsh2021-01-20
| | | | | | | | | | | | | | | | | | | | I found several problems with container remove podman-remote rm --all Was not handled podman-remote rm --ignore Was not handled Return better errors when attempting to remove an --external container. Currently we return the container does not exists, as opposed to container is an external container that is being used. This patch also consolidates the tunnel code to use the same code for removing the container, as the local API, removing duplication of code and potential problems. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Initial implementation of renaming containersMatthew Heon2021-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Basic theory: We remove the container, but *only from the DB*. We leave it in c/storage, we leave the lock allocated, we leave it running (if it is). Then we create an identical container with an altered name, and add that back to the database. Theoretically we now have a renamed container. The advantage of this approach is that it doesn't just apply to rename - we can use this to make *any* configuration change to a container that does not alter its container ID. Potential problems are numerous. This process is *THOROUGHLY* non-atomic at present - if you `kill -9` Podman mid-rename things will be in a bad place, for example. Also, we can't rename containers that can't be removed normally - IE, containers with dependencies (pod infra containers, for example). The largest potential improvement will be to move the majority of the work into the DB, with a `RecreateContainer()` method - that will add atomicity, and let us remove the container without worrying about depencies and similar issues. Potential problems: long-running processes that edit the DB and may have an older version of the configuration around. Most notable example is `podman run --rm` - the removal command needed to be manually edited to avoid this one. This begins to get at the heart of me not wanting to do this in the first place... This provides CLI and API implementations for frontend, but no tunnel implementation. It will be added in a future release (just held back for time now - we need this in 3.0 and are running low on time). This is honestly kind of horrifying, but I think it will work. Signed-off-by: Matthew Heon <mheon@redhat.com>
* add pre checkpointunknown2021-01-10
| | | | Signed-off-by: Zhuohan Chen <chen_zhuohan@163.com>
* Include named volumes in container migrationRadostin Stoyanov2021-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When migrating a container with associated volumes, the content of these volumes should be made available on the destination machine. This patch enables container checkpoint/restore with named volumes by including the content of volumes in checkpoint file. On restore, volumes associated with container are created and their content is restored. The --ignore-volumes option is introduced to disable this feature. Example: # podman container checkpoint --export checkpoint.tar.gz <container> The content of all volumes associated with the container are included in `checkpoint.tar.gz` # podman container checkpoint --export checkpoint.tar.gz --ignore-volumes <container> The content of volumes is not included in `checkpoint.tar.gz`. This is useful, for example, when the checkpoint/restore is performed on the same machine. # podman container restore --import checkpoint.tar.gz The associated volumes will be created and their content will be restored. Podman will exit with an error if volumes with the same name already exist on the system or the content of volumes is not included in checkpoint.tar.gz # podman container restore --ignore-volumes --import checkpoint.tar.gz Volumes associated with container must already exist. Podman will not create them or restore their content. Signed-off-by: Radostin Stoyanov <rstoyanov@fedoraproject.org>
* Rework pruning to report reclaimed spaceBaron Lenardson2020-12-30
| | | | | | | | | | | | This change adds code to report the reclaimed space after a prune. Reclaimed space from volumes, images, and containers is recorded during the prune call in a PruneReport struct. These structs are collected into a slice during a system prune and processed afterwards to calculate the total reclaimed space. Closes #8658 Signed-off-by: Baron Lenardson <lenardson.baron@gmail.com>
* add --cidfile to container killbaude2020-12-23
| | | | | | | | | Add the ability to read container ids from one or more files for the kill command. Fixes: #8443 Signed-off-by: baude <bbaude@redhat.com>
* remote copyValentin Rothberg2020-12-18
| | | | | | | | | | | | | | Implement `podman-remote cp` and break out the logic from the previously added `pkg/copy` into it's basic building blocks and move them up into the `ContainerEngine` interface and `cmd/podman`. The `--pause` and `--extract` flags are now deprecated and turned into nops. Note that this commit is vendoring a non-release version of Buildah to pull in updates to the copier package. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* podman logs honor stderr correctlyPaul Holzinger2020-12-10
| | | | | | | | Make the ContainerLogsOptions support two io.Writers, one for stdout and the other for stderr. The logline already includes the information to which Writer it has to be written. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* rewrite podman-cpValentin Rothberg2020-12-04
| | | | | | | | | | | | | | | | | | | | | | | | * Add a new `pkg/copy` to centralize all container-copy related code. * The new code is based on Buildah's `copier` package. * The compat `/archive` endpoints use the new `copy` package. * Update docs and an several new tests. * Includes many fixes, most notably, the look-up of volumes and mounts. Breaking changes: * Podman is now expecting that container-destination paths exist. Before, Podman created the paths if needed. Docker does not do that and I believe Podman should not either as it's a recipe for masking errors. These errors may be user induced (e.g., a path typo), or internal typos (e.g., when the destination may be a mistakenly unmounted volume). Let's keep the magic low for such a security sensitive feature. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* The cidfile should be created when the container is createdDaniel J Walsh2020-10-26
| | | | | | | | | | | Currently if you run an interactive session of podman run and specifiy the --cidfile option, the cidfile will not get created until the container finishes running. If you run a detached container, it will get created right away. This Patch creates the cidfile as soon as the container is created. This could allow other tools to use the cidefile on all running containers. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add support for external containerDaniel J Walsh2020-10-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | External containers are containers created outside of Podman. For example Buildah and CRI-O Containers. $ buildah from alpine alpine-working-container $ buildah run alpine-working-container touch /test $ podman container exists --external alpine-working-container $ podman container diff alpine-working-container C /etc A /test Added --external flag to refer to external containers, rather then --storage. Added --external for podman container exists and modified podman ps to use --external rather then --storage. It was felt that --storage would confuse the user into thinking about changing the storage driver or options. --storage is still supported through the use of aliases. Finally podman contianer diff, does not require the --external flag, since it there is little change of users making the mistake, and would just be a pain for the user to remember the flag. podman container exists --external is required because it could fool scripts that rely on the existance of a Podman container, and there is a potential for a partial deletion of a container, which could mess up existing users. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* This PR allows users to remove external containers directlyDaniel J Walsh2020-10-09
| | | | | | | | | | | | | | | | | | | | | | | Currenly if a user specifies the name or ID of an external storage container, we report an error to them. buildah from scratch working-container-2 podman rm working-container-2 Error: no container with name or ID working-container-2 found: no such container Since the user specified the correct name and the container is in storage we force them to specify --storage to remove it. This is a bad experience for the user. This change will just remove the container from storage. If the container is known by libpod, it will remove the container from libpod as well. The podman rm --storage option has been deprecated, and removed from docs. Also cleaned documented options that are not available to podman-remote. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* stats: break out CLI optionsValentin Rothberg2020-09-24
| | | | | | | | Have a clear separation of concerns for the CLI-only options (and their logic) from the backend. The backend logic is now easier to understand (e.g., `stream` instead of `noStream`). Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* stats refactorValentin Rothberg2020-09-23
| | | | | | | | | | | | Refactor the entities' stats API to simplify using it and reduce the risk of running into concurrency issues at the call sites. Further simplify the stats code by de-spaghetti-ing the logic and reducing duplicate code. `ContainerStats` now returns a data channel and an error. If the error is nil, callers can read from the channel. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Show c/storage (Buildah/CRI-O) containers in psDaniel J Walsh2020-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The `podman ps --all` command will now show containers that are under the control of other c/storage container systems and the new `ps --storage` option will show only containers that are in c/storage but are not controlled by libpod. In the below examples, the '*working-container' entries were created by Buildah. ``` podman ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 9257ef8c786c docker.io/library/busybox:latest ls /etc 8 hours ago Exited (0) 8 hours ago gifted_jang d302c81856da docker.io/library/busybox:latest buildah 30 hours ago storage busybox-working-container 7a5a7b099d33 localhost/tom:latest ls -alF 30 hours ago Exited (0) 30 hours ago hopeful_hellman 01d601fca090 localhost/tom:latest ls -alf 30 hours ago Exited (1) 30 hours ago determined_panini ee58f429ff26 localhost/tom:latest buildah 33 hours ago storage alpine-working-container podman ps --external CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES d302c81856da docker.io/library/busybox:latest buildah 30 hours ago external busybox-working-container ee58f429ff26 localhost/tom:latest buildah 33 hours ago external alpine-working-container ``` Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com> Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* 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>
* Add --preservefds to podman runQi Wang2020-06-19
| | | | | | Add --preservefds to podman run. close https://github.com/containers/libpod/issues/6458 Signed-off-by: Qi Wang <qiwan@redhat.com>
* Fix Id->ID where possible for lintDaniel J Walsh2020-06-10
| | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add parallel operation to `podman stop`Matthew Heon2020-06-05
| | | | | | | | | | | | This is the other command that benefits greatly from being run in parallel, due to the potential 15-second timeout for containers that ignore SIGTERM. While we're at it, also clean up how stop timeout is set. This needs to be an optional parameter, so that the value set when the container is created with `--stop-timeout` will be respected. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add ability to clean up exec sessions with cleanupMatthew Heon2020-05-20
| | | | | | | | | | | | | | We need to be able to use cleanup processes to remove exec sessions as part of detached exec. This PR adds that ability. A new flag is added to `podman container cleanup`, `--exec`, to specify an exec session to be cleaned up. As part of this, ensure that `ExecCleanup` can clean up exec sessions that were running, but have since exited. This ensures that we can come back to an exec session that was running but has since stopped, and clean it up. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add CLI frontend for detached execMatthew Heon2020-05-20
| | | | | | | | | | | Add a new ContainerEngine method for creating a detached exec session, and wire in the frontend code to do this. As part of this, move Streams out of ExecOptions to the function signature in an effort to share the struct between both methods. Fixes #5884 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Fix checkpoint --leave-runningAdrian Reber2020-05-14
| | | | | | | There was typo in the variable name and in one place it was not correctly passed to the next layer. Signed-off-by: Adrian Reber <areber@redhat.com>
* container runlabelValentin Rothberg2020-05-07
| | | | | | Implement container runlabel for v2. Local client only. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* v2 podman statsbaude2020-05-05
| | | | Signed-off-by: baude <bbaude@redhat.com>
* podman, start: propagate back the raw inputGiuseppe Scrivano2020-04-30
| | | | | | | this is necessary as we expect "podman start $ID_NAME" to print the same arguments the user passed in instead of the full ID. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* podmanv2 cpBrent Baude2020-04-21
| | | | | | enable podman to copy files between container and host, local mode only. this is a straight port of v1 code to v2. Signed-off-by: Brent Baude <bbaude@redhat.com>
* v2podman portBrent Baude2020-04-21
| | | | | | add port command to podman. Signed-off-by: Brent Baude <bbaude@redhat.com>
* Ability to prune container in api V2Sujil022020-04-15
| | | | | | | Adds ability to prune containers for v2. Adds client side prompt with force flag and filters options to prune. Signed-off-by: Sujil02 <sushah@redhat.com>
* podmanv2 mount and umountBrent Baude2020-04-14
| | | | | | add the ability to mount and unmount containers for the local client only Signed-off-by: Brent Baude <bbaude@redhat.com>
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