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* Do not reset storage when running inside of a containerDaniel J Walsh2021-02-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently if the host shares container storage with a container running podman, the podman inside of the container resets the storage on the host. This can cause issues on the host, as well as causes the podman command running the container, to fail to unmount /dev/shm. podman run -ti --rm --privileged -v /var/lib/containers:/var/lib/containers quay.io/podman/stable podman run alpine echo hello * unlinkat /var/lib/containers/storage/overlay-containers/a7f3c9deb0656f8de1d107e7ddff2d3c3c279c11c1635f233a0bffb16051fb2c/userdata/shm: device or resource busy * unlinkat /var/lib/containers/storage/overlay-containers/a7f3c9deb0656f8de1d107e7ddff2d3c3c279c11c1635f233a0bffb16051fb2c/userdata/shm: device or resource busy Since podman is volume mounting in the graphroot, it will add a flag to /run/.containerenv to tell podman inside of container whether to reset storage or not. Since the inner podman is running inside of the container, no reason to assume this is a fresh reboot, so if "container" environment variable is set then skip reset of storage. Also added tests to make sure /run/.containerenv is runnig correctly. Fixes: https://github.com/containers/podman/issues/9191 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> <MH: Fixed cherry-pick conflicts> Signed-off-by: Matthew Heon <mheon@redhat.com>
* Enable whitespace linterPaul Holzinger2021-02-18
| | | | | | | | | | | | Use the whitespace linter and fix the reported problems. [NO TESTS NEEDED] Signed-off-by: Paul Holzinger <paul.holzinger@web.de> <MH: Fixed up cherry-pick conflicts> Signed-off-by: Matthew Heon <mheon@redhat.com>
* Enable golint linterPaul Holzinger2021-02-18
| | | | | | | | Use the golint linter and fix the reported problems. [NO TESTS NEEDED] Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Enable stylecheck linterPaul Holzinger2021-02-18
| | | | | | | | | | | | Use the stylecheck linter and fix the reported problems. [NO TESTS NEEDED] Signed-off-by: Paul Holzinger <paul.holzinger@web.de> <MH: Fix cherry-pick conflict> Signed-off-by: Matthew Heon <mheon@redhat.com>
* Don't chown workdir if it already existsDaniel J Walsh2021-02-18
| | | | | | | | | Currently podman is always chowning the WORKDIR to root:root This PR will return if the WORKDIR already exists. Fixes: https://github.com/containers/podman/issues/9387 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* podman build: pass runtime to buildahValentin Rothberg2021-02-18
| | | | | | | | | | Make sure that Podman's default OCI runtime is passed to Buildah in `podman build`. In theory, Podman and Buildah should use the same defaults but the projects move at different speeds and it turns out we caused a regression in v3.0. Fixes: #9365 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Fix panic in pod creationbaude2021-02-18
| | | | | | | | | | when creating a pod with --infra-image and using a untagged image for the infra-image (none/none), the lookup for the image's name was creating a panic. Fixes: #9374 Signed-off-by: baude <bbaude@redhat.com>
* do not set empty $HOMEValentin Rothberg2021-02-18
| | | | | | | | | | | | | | | Make sure to not set an empty $HOME for containers and let it default to "/". https://github.com/containers/crun/pull/599 is required to fully address #9378. Partially-Fixes: #9378 Signed-off-by: Valentin Rothberg <rothberg@redhat.com> <MH: Fixed cherry-pick conflicts> Signed-off-by: Matthew Heon <mheon@redhat.com>
* Change source path resolution for volume copy-upMatthew Heon2021-02-18
| | | | | | | | | | | | | | | Instead of using the container's mountpoint as the base of the chroot and indexing from there by the volume directory, instead use the full path of what we want to copy as the base of the chroot and copy everything in it. This resolves the bug, ends up being a bit simpler code-wise (no string concatenation, as we already have the full path calculated for other checks), and seems more understandable than trying to resolve things on the destination side of the copy-up. Fixes #9354 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Fix an issue where copyup could fail with ENOENTMatthew Heon2021-02-18
| | | | | | | | | | | | | | | | | | This one is rather bizarre because it triggers only on some systems. I've included a CI test, for example, but I'm 99% sure we use images in CI that have volumes over empty directories, and the earlier patch to change copy-up implementation passed CI without complaint. I can reproduce this on a stock F33 VM, but that's the only place I have been able to see it. Regardless, the issue: under certain as-yet-unidentified environmental conditions, the copier.Get method will return an ENOENT attempting to stream a directory that is empty. Work around this by avoiding the copy altogether in this case. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Merge pull request #9346 from vrothberg/3.0-layer-tree-errorsOpenShift Merge Robot2021-02-13
|\ | | | | [3.0] make layer-tree lookup errors non-fatal
| * make layer-tree lookup errors non-fatalValentin Rothberg2021-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Internally, Podman constructs a tree of layers in containers/storage to quickly compute relations among layers and hence images. To compute the tree, we intersect all local layers with all local images. So far, lookup errors have been fatal which has turned out to be a mistake since it seems fairly easy to cause storage corruptions, for instance, when killing builds. In that case, a (partial) image may list a layer which does not exist (anymore). Since the errors were fatal, there was no easy way to clean up and many commands were erroring out. To improve usability, turn the fatal errors into warnings that guide the user into resolving the issue. In this case, a `podman system reset` may be the approriate way for now. [NO TESTS NEEDED] because I have no reliable way to force it. [1] https://github.com/containers/podman/issues/8148#issuecomment-778253474 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* | Rewrite copy-up to use buildah CopierMatthew Heon2021-02-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The old copy-up implementation was very unhappy with symlinks, which could cause containers to fail to start for unclear reasons when a directory we wanted to copy-up contained one. Rewrite to use the Buildah Copier, which is more recent and should be both safer and less likely to blow up over links. At the same time, fix a deadlock in copy-up for volumes requiring mounting - the Mountpoint() function tried to take the already-acquired volume lock. Fixes #6003 Signed-off-by: Matthew Heon <mheon@redhat.com>
* | Display correct value for unlimited ulimitbaude2021-02-11
| | | | | | | | | | | | | | | | | | | | | | When doing a container inspect on a container with unlimited ulimits, the value should be -1. But because the OCI spec requires the ulimit value to be uint64, we were displaying the inspect values as a uint64 as well. Simple change to display as an int64. Fixes: #9303 Signed-off-by: baude <bbaude@redhat.com>
* | Fix per review requestMatej Vasek2021-02-08
| | | | | | | | Signed-off-by: Matej Vasek <mvasek@redhat.com>
* | Improve container libpod.Wait*() functionsMatej Vasek2021-02-08
| | | | | | | | Signed-off-by: Matej Vasek <mvasek@redhat.com>
* | fix logic when not creating a workdirValentin Rothberg2021-02-05
| | | | | | | | | | | | | | | | | | | | | | When resolving the workdir of a container, we may need to create unless the user set it explicitly on the command line. Otherwise, we just do a presence check. Unfortunately, there was a missing return that lead us to fall through into attempting to create and chown the workdir. That caused a regression when running on a read-only root fs. Fixes: #9230 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* | Fix podman network disconnect wrong NetworkStatus numberPaul Holzinger2021-02-05
| | | | | | | | | | | | | | | | | | | | | | | | | | The allocated `tmpNetworkStatus` must be allocated with the length 0. Otherwise append would add new elements to the end of the slice and not at the beginning of the allocated memory. This caused inspect to fail since the number of networks did not matched the number of network statuses. Fixes #9234 Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* | generate kube: handle entrypointValentin Rothberg2021-02-04
| | | | | | | | | | | | | | | | | | | | The spec of a Kube Container has a `Command` and `Args`. While both are slices, the `Command` is the counterpart of the entrypoint of a libpod container. Kube is also happily accepting the arguments to as following items in the slice but it's cleaner to move those to `Args`. Fixes: #9211 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* | Allow pods to use --net=noneMatthew Heon2021-02-04
| | | | | | | | | | | | | | | | | | | | | | We need an extra field in the pod infra container config. We may want to reevaluate that struct at some point, as storing network modes as bools will rapidly become unsustainable, but that's a discussion for another time. Otherwise, straightforward plumbing. Fixes #9165 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* | Make slirp MTU configurable (network_cmd_options)bitstrings2021-02-04
| | | | | | | | | | | | | | | | The mtu default value is currently forced to 65520. This let the user control it using the config key network_cmd_options, i.e.: network_cmd_options=["mtu=9000"] Signed-off-by: bitstrings <pino.silvaggio@gmail.com>
* | podman generate kube ignores --network=hostMilivoje Legenovic2021-02-04
| | | | | | | | Signed-off-by: Milivoje Legenovic <m.legenovic@gmail.com>
* | Honor custom DNS in play|generate kubebaude2021-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | when creating kubernetes yaml from containers and pods, we should honor any custom dns settings the user provided. in the case of generate kube, these would be provided by --dns, --dns-search, and --dns-opt. if multiple containers are involved in the generate, the options will be cumulative and unique with the exception of dns-opt. when replaying a kube file that has kubernetes dns information, we now also add that information to the pod creation. the options for dnspolicy is not enabled as there seemed to be no direct correlation between kubernetes and podman. Fixes: #9132 Signed-off-by: baude <bbaude@redhat.com>
* | libpod: move slirp magic IPs to constsGiuseppe Scrivano2021-02-03
| | | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* | rootlessport: set source IP to slirp4netns deviceGiuseppe Scrivano2021-02-03
| | | | | | | | | | | | | | | | | | set the source IP to the slirp4netns address instead of 127.0.0.1 when using rootlesskit. Closes: https://github.com/containers/podman/issues/5138 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* | add macvlan as a supported network driverbaude2021-02-02
|/ | | | | | | | | | | | instead of using the --macvlan to indicate that you want to make a macvlan network, podman network create now honors the driver name of *macvlan*. Any options to macvlan, like the parent device, should be specified as a -o option. For example, -o parent=eth0. the --macvlan option was marked as deprecated in the man page but is still supported for the duration of 3.0. Signed-off-by: baude <bbaude@redhat.com>
* Ensure shutdown handler access is syncronizedMatthew Heon2021-01-29
| | | | | | | | | | | | | | There was a potential race where two handlers could be added at the same time. Go Maps are not thread-safe, so that could do unpleasant things. Add a mutex to keep things safe. Also, swap the order or Register and Start for the handlers in Libpod runtime created. As written, there was a small gap between Start and Register where SIGTERM/SIGINT would be completely ignored, instead of stopping Podman. Swapping the two closes this gap. Signed-off-by: Matthew Heon <mheon@redhat.com>
* workdir presence checksValentin Rothberg2021-01-29
| | | | | | | | | | | | | | | | | | A container's workdir can be specified via the CLI via `--workdir` and via an image config with the CLI having precedence. Since images have a tendency to specify workdirs without necessarily shipping the paths with the root FS, make sure that Podman creates the workdir. When specified via the CLI, do not create the path, but check for its existence and return a human-friendly error. NOTE: `crun` is performing a similar check that would yield exit code 127. With this change, however, Podman performs the check and yields exit code 126. Since this is specific to `crun`, I do not consider it to be a breaking change of Podman. Fixes: #9040 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* libpod: add (*Container).ResolvePath()Valentin Rothberg2021-01-29
| | | | | | | | | Add an API to libpod to resolve a path on the container. We can refactor the code that was originally written for copy. Other functions are requiring a proper path resolution, so libpod seems like a reasonable home for sharing that code. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Add default net info in container inspectbaude2021-01-29
| | | | | | | | | | | | | | when inspecting a container that is only connected to the default network, we should populate the default network in the container inspect information. Fixes: #6618 Signed-off-by: baude <bbaude@redhat.com> MH: Small fixes, added another test Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* remote exec: write conmon error on hijacked connectionValentin Rothberg2021-01-29
| | | | | | | | | | | | | | Make sure to write error from conmon on the hijacked http connection. This fixes issues where errors were not reported on the client side, for instance, when specified command was not found on the container. To future generations: I am sorry. The code is complex, and there are many interdependencies among the concurrent goroutines. I added more complexity on top but I don't have a good idea of how to reduce complexity in the available time. Fixes: #8281 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Add support for rootless network-aliasesPaul Holzinger2021-01-28
| | | | | | | | | | Make sure we pass the network aliases as capability args to the cnitool in the rootless-cni-infra container. Also update the dnsname plugin in the cni-infra container. Fixes #8567 Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Allow static ip and mac with rootless cni networkPaul Holzinger2021-01-28
| | | | | | | | Make sure we pass the ip and mac address as CNI_ARGS to the cnitool which is executed in the rootless-cni-infra container. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* disable dnsname when --internalbaude2021-01-26
| | | | | | | | when doing a network creation, the dnsname plugin should be disabled when the --internal bool is set. a warning is displayed if this happens and docs are updated. Signed-off-by: baude <bbaude@redhat.com>
* Merge pull request #8955 from mheon/renameOpenShift Merge Robot2021-01-14
|\ | | | | Container Rename
| * 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>
* | Initial implementation of volume pluginsMatthew Heon2021-01-14
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements support for mounting and unmounting volumes backed by volume plugins. Support for actually retrieving plugins requires a pull request to land in containers.conf and then that to be vendored, and as such is not yet ready. Given this, this code is only compile tested. However, the code for everything past retrieving the plugin has been written - there is support for creating, removing, mounting, and unmounting volumes, which should allow full functionality once the c/common PR is merged. A major change is the signature of the MountPoint function for volumes, which now, by necessity, returns an error. Named volumes managed by a plugin do not have a mountpoint we control; instead, it is managed entirely by the plugin. As such, we need to cache the path in the DB, and calls to retrieve it now need to access the DB (and may fail as such). Notably absent is support for SELinux relabelling and chowning these volumes. Given that we don't manage the mountpoint for these volumes, I am extremely reluctant to try and modify it - we could easily break the plugin trying to chown or relabel it. Also, we had no less than *5* separate implementations of inspecting a volume floating around in pkg/infra/abi and pkg/api/handlers/libpod. And none of them used volume.Inspect(), the only correct way of inspecting volumes. Remove them all and consolidate to using the correct way. Compat API is likely still doing things the wrong way, but that is an issue for another day. Fixes #4304 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Merge pull request #8906 from vrothberg/fix-8501OpenShift Merge Robot2021-01-14
|\ | | | | container stop: release lock before calling the runtime
| * container stop: release lock before calling the runtimeValentin Rothberg2021-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Podman defers stopping the container to the runtime, which can take some time. Keeping the lock while waiting for the runtime to complete the stop procedure, prevents other commands from acquiring the lock as shown in #8501. To improve the user experience, release the lock before invoking the runtime, and re-acquire the lock when the runtime is finished. Also introduce an intermediate "stopping" to properly distinguish from "stopped" containers etc. Fixes: #8501 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* | Merge pull request #8958 from zhangguanzhang/duplicated-hostsOpenShift Merge Robot2021-01-13
|\ \ | | | | | | Fixes /etc/hosts duplicated every time after container restarted in a pod
| * | Fxes /etc/hosts duplicated every time after container restarted in a podzhangguanzhang2021-01-13
| | | | | | | | | | | | Signed-off-by: zhangguanzhang <zhangguanzhang@qq.com>
* | | Remove the ability to use [name:tag] in podman load commandDaniel J Walsh2021-01-12
|/ / | | | | | | | | | | | | | | | | | | Docker does not support this, and it is confusing what to do if the image has more then one tag. We are dropping support for this in podman 3.0 Fixes: https://github.com/containers/podman/issues/7387 Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | Merge pull request #8950 from mheon/exorcise_driverOpenShift Merge Robot2021-01-12
|\ \ | | | | | | Exorcise Driver code from libpod/define
| * | Exorcise Driver code from libpod/defineMatthew Heon2021-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The libpod/define code should not import any large dependencies, as it is intended to be structures and definitions only. It included the libpod/driver package for information on the storage driver, though, which brought in all of c/storage. Split the driver package so that define has the struct, and thus does not need to import Driver. And simplify the driver code while we're at it. Signed-off-by: Matthew Heon <mheon@redhat.com>
* | | Merge pull request #8946 from JAORMX/sec-errorsOpenShift Merge Robot2021-01-12
|\ \ \ | | | | | | | | Expose security attribute errors with their own messages
| * | | Expose security attribute errors with their own messagesJuan Antonio Osorio Robles2021-01-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This creates error objects for runtime errors that might come from the runtime. Thus, indicating to users that the place to debug should be in the security attributes of the container. When creating a container with a SELinux label that doesn't exist, we get a fairly cryptic error message: ``` $ podman run --security-opt label=type:my_container.process -it fedora bash Error: OCI runtime error: write file `/proc/thread-self/attr/exec`: Invalid argument ``` This instead handles any errors coming from LSM's `/proc` API and enhances the error message with a relevant indicator that it's related to the container's security attributes. A sample run looks as follows: ``` $ bin/podman run --security-opt label=type:my_container.process -it fedora bash Error: `/proc/thread-self/attr/exec`: OCI runtime error: unable to assign security attribute ``` With `debug` log level enabled it would be: ``` Error: write file `/proc/thread-self/attr/exec`: Invalid argument: OCI runtime error: unable to assign security attribute ``` Note that these errors wrap ErrOCIRuntime, so it's still possible to to compare these errors with `errors.Is/errors.As`. One advantage of this approach is that we could start handling these errors in a more efficient manner in the future. e.g. If a SELinux label doesn't exist (yet), we could retry until it becomes available. Signed-off-by: Juan Antonio Osorio Robles <jaosorior@redhat.com>
* | | | Merge pull request #8947 from Luap99/cleanup-codeOpenShift Merge Robot2021-01-12
|\ \ \ \ | |/ / / |/| | | Fix problems reported by staticcheck
| * | | Fix problems reported by staticcheckPaul Holzinger2021-01-12
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `staticcheck` is a golang code analysis tool. https://staticcheck.io/ This commit fixes a lot of problems found in our code. Common problems are: - unnecessary use of fmt.Sprintf - duplicated imports with different names - unnecessary check that a key exists before a delete call There are still a lot of reported problems in the test files but I have not looked at those. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* | | Merge pull request #8819 from chen-zhuohan/add-pre-checkpointOpenShift Merge Robot2021-01-12
|\ \ \ | | | | | | | | Add pre-checkpoint and restore with previous
| * | | add pre checkpointunknown2021-01-10
| | | | | | | | | | | | | | | | Signed-off-by: Zhuohan Chen <chen_zhuohan@163.com>
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-01-04 01:25:23 +0000