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* libpod: Add HooksDirNotExistFatalW. Trevor King2018-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | And add an argument to WithHooksDir to set it. If the hook dir doesn't exist, the new hooks package considers that a fatal error. When a podman caller sets --hooks-dir-path=/some/typoed/directory, a fatal error is more helpful than silently not loading any hooks. However, callers who call podman without setting --hooks-dir-path may not need hooks at all. We don't want to pester those callers with not-exist errors. With this commit, we: * Assume the caller knows what they're doing if they set --hooks-dir-path and set HooksDirNotExistFatal. * If the caller does not explicitly set --hooks-dir-path, assume they won't mind if the hook directory is missing and set HooksDirNotExistFatal false. We also considered checking for the directory's existence in the code calling WithHooksDir or from within WithHooksDir, but checks there would race with the underlying ioutil.ReadDir in the hooks package. By pushing the warn/error decision down into libpod's implementation, we avoid a racy "do we expect this to work once libpod gets to it?" pre-check. I've also added a check to error if WithHooksDir is called with an empty-string argument, because we haven't defined the semantics of that (is it clearing a previous value? Is it effectively the same as the current directory?). I agree with Matthew that a separate WithNoHooks, or a *string argument to WithHooks, or some such would be a better API for clearing previous values [1]. But for now, I'm just erroring out to fail early for callers who might otherwise be surprised that libpod ignores empty-string HooksDir. [1]: https://github.com/projectatomic/libpod/pull/686#issuecomment-385119370 Signed-off-by: W. Trevor King <wking@tremily.us> Closes: #686 Approved by: mheon
* pkg/hooks: Version the hook structure and add 1.0.0 hooksW. Trevor King2018-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This shifts the matching logic out of libpod/container_internal and into the hook package, where we can reuse it after vendoring into CRI-O. It also adds unit tests with almost-complete coverage. Now libpod is even more isolated from the hook internals, which makes it fairly straightforward to bump the hook config file to 1.0.0. I've dubbed the old format 0.1.0, although it doesn't specify an explicit version. Motivation for some of my changes with 1.0.0: * Add an explicit version field. This will make any future JSON structure migrations more straightforward by avoiding the need for version-guessing heuristics. * Collect the matching properties in a new When sub-structure. This makes the root Hook structure easier to understand, because you don't have to read over all the matching properties when wrapping your head around Hook. * Replace the old 'hook' and 'arguments' with a direct embedding of the runtime-spec's hook structure. This provides access to additional upstream properties (args[0], env, and timeout) and avoids the complication of a CRI-O-specific analog structure. * Add a 'when.always' property. You can usually accomplish this effect in another way (e.g. when.commands = [".*"]), but having a boolean explicitly for this use-case makes for easier reading and writing. * Replace the previous annotations array with an annotations map. The 0.1.0 approach matched only the values regardless of key, and that seems unreliable. * Replace 'cmds' with 'when.commands', because while there are a few ways to abbreviate "commands", there's only one way to write it out in full ;). This gives folks one less thing to remember when writing hook JSON. * Replace the old "inject if any specified condition matches" with "inject if all specified conditions match". This allows for more precise targeting. Users that need more generous targeting can recover the previous behavior by creating a separate 1.0.0 hook file for each specified 0.1.0 condition. I've added doc-compat support for the various pluralizations of the 0.1.0 properties. Previously, the docs and code were not in agreement. More on this particular facet in [1]. I've updated the docs to point out that the annotations being matched are the OCI config annotations. This differs from CRI-O, where the annotations used are the Kubernetes-supplied annotations [2,3]. For example, io.kubernetes.cri-o.Volumes [4] is part of CRI-O's runtime config annotations [5], but not part of the Kubernetes-supplied annotations CRI-O uses for matching hooks. The Monitor method supports the CRI-O use-case [6]. podman doesn't need it directly, but CRI-O will need it when we vendor this package there. I've used nvidia-container-runtime-hook for the annotation examples because Dan mentioned the Nvidia folks as the motivation behind annotation matching. The environment variables are documented in [7]. The 0.1.0 hook config, which does not allow for environment variables, only works because runc currently leaks the host environment into the hooks [8]. I haven't been able to find documentation for their usual annotation trigger or hook-install path, so I'm just guessing there. [1]: https://github.com/kubernetes-incubator/cri-o/pull/1235 [2]: https://github.com/kubernetes-incubator/cri-o/blob/v1.10.0/server/container_create.go#L760 [3]: https://github.com/kubernetes-incubator/cri-o/blob/v1.10.0/server/container_create.go#L772 [4]: https://github.com/kubernetes-incubator/cri-o/blob/v1.10.0/pkg/annotations/annotations.go#L97-L98 [5]: https://github.com/kubernetes-incubator/cri-o/blob/v1.10.0/server/container_create.go#L830-L834 [6]: https://github.com/kubernetes-incubator/cri-o/pull/1345/ [7]: https://github.com/NVIDIA/nvidia-container-runtime/tree/v1.3.0-1#environment-variables-oci-spec [8]: https://github.com/opencontainers/runc/pull/1738 Signed-off-by: W. Trevor King <wking@tremily.us> Closes: #686 Approved by: mheon
* Update Podman-specific readmeMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #754 Approved by: baude
* Add --cgroup-manager flag to Podman binaryMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #507 Approved by: baude
* Major fixes to systemd cgroup handlingMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #507 Approved by: baude
* varlink infobaude2018-05-11
| | | | | | | | | | The varlinfo info returns the same information as podman info but always includes the so-called debug information. Signed-off-by: baude <bbaude@redhat.com> Closes: #745 Approved by: baude
* podman push should honor registries.confbaude2018-05-10
| | | | | | | | | | | Like podman pull, when you push an image, podman should check if the registry is listed as insecure and if so, it should --tls-verify=false unless the user overrides this. Signed-off-by: baude <bbaude@redhat.com> Closes: #738 Approved by: mheon
* alphabetize the varlink methods, types, and errors in the docsbaude2018-05-10
| | | | | | | | | | | | We have decided to alphabetize things in the API documentation to help users find things easier. It also solves an issue where when being made, the API.md doc would remake itself in a different order resulting in massive diffs in the pull requests but no new content. Signed-off-by: baude <bbaude@redhat.com> Closes: #739 Approved by: baude
* Add missing newline to podman portMatthew Heon2018-05-10
| | | | | | | Signed-off-by: Matthew Heon <mheon@redhat.com> Closes: #741 Approved by: giuseppe
* Generate varlink API documentation automaticallybaude2018-05-08
| | | | | | | | | | Using varlink's idl parser, we generate API documentation for the podman API relying on the .varlink file as the source. Signed-off-by: baude <bbaude@redhat.com> Closes: #734 Approved by: baude
* Allow streaming on some varlink container methodsbaude2018-05-08
| | | | | | | | | | | | | | | The following methods should support streaming requests from the client: * GetContainerLogs A reference for a python stream implementation can be found here: https://github.com/varlink/python/blob/master/varlink/tests/test_orgexamplemore.py#L29-L42 Signed-off-by: baude <bbaude@redhat.com> Closes: #724 Approved by: mheon
* Remove extra close from attach resize channelMatthew Heon2018-05-08
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #733 Approved by: umohnani8
* Fix calculation of RunningFor in ps json outputMatthew Heon2018-05-05
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #727 Approved by: rhatdan
* Make invalid state nonfatal when cleaning up in runMatthew Heon2018-05-04
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #726 Approved by: baude
* networking, userNS: configure the network namespace after createGiuseppe Scrivano2018-05-04
| | | | | | | | | | | so that the OCI runtime creates the network namespace from the correct userNS. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #690 Approved by: mheon
* Begin wiring in USERNS Support into podmanDaniel J Walsh2018-05-04
| | | | | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #690 Approved by: mheon
* varlink containersbaude2018-05-03
| | | | | | | | | | | | | first pass at adding in the container related endpoints/methods for the libpod backend. Couple of important notes: * endpoints that can use a console are not going to be done until we have "remote" console * several of the container methods should probably be able to stream as opposed to a one-off return Signed-off-by: baude <bbaude@redhat.com> Closes: #708 Approved by: baude
* Trivial refactor on volume additionMatthew Heon2018-05-03
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #700 Approved by: rhatdan
* When adding volumes to DB, handle nontrivial casesMatthew Heon2018-05-03
| | | | | | | | | | We want to make sure we don't add anything but the host volume, and the volumes can include options and container locations. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #700 Approved by: rhatdan
* Store user Volumes, Entrypoint, Command in databaseMatthew Heon2018-05-03
| | | | | | | | | | | We need these for commit, and they cannot be properly deduced from just the OCI spec, so save them in the database so we can retrieve them for commit. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #700 Approved by: rhatdan
* Add config bool to indicate there are user volumesMatthew Heon2018-05-03
| | | | | | | | | | This allows us to accurately trigger OCI hooks that trigger on the presence of volume mounts. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #700 Approved by: rhatdan
* remove options from create/run that we cannot supportbaude2018-05-02
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #711 Approved by: rhatdan
* Fix podman logout --all flagumohnani82018-05-02
| | | | | | | | | | | podman logout --all should remove cached credentials for all registries in the auth.json file. Before this, it was asking for a registry to be given with the --all flag also. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #712 Approved by: rhatdan
* podman should assign a host port to -p when omittedbaude2018-05-01
| | | | | | | | | | | If the user does not provide a host port when adding -p to create/run, podman should inject an available random port. podman run -p 80 .... podman should assign a random port to the host and expose the container port 80 to it Signed-off-by: baude <bbaude@redhat.com> Closes: #703 Approved by: rhatdan
* Fix misc stuff found by jhoncebaude2018-04-30
| | | | | | | | | | | During the python client implementation, jhonce found some return types that needed correction as well as a panic related to history which is now corrected. Signed-off-by: baude <bbaude@redhat.com> Closes: #704 Approved by: rhatdan
* do not commit default volumes from containerbaude2018-04-30
| | | | | | | | | | | when performing a container commit, we should not add the default list of volumes for a container to the resulting image. it will cause the resulting image to crash when run subsequently. Signed-off-by: baude <bbaude@redhat.com> Closes: #699 Approved by: mheon
* Make ':' a restricted character for file namesumohnani82018-04-30
| | | | | | | | | | | file names for podman load, save, export, and import cannot contain ":" in them. It is a reserved character for parsing filenames. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #694 Approved by: rhatdan
* Add more validation to --volume flag for run and createumohnani82018-04-30
| | | | | | | | | | Return error if the host and container paths is a relative path. Only absolute paths allowed. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #695 Approved by: rhatdan
* Use buildah commit and bud in podmanbaude2018-04-27
| | | | | | | | | | | Vendor in buildah and use as much of commit and bug as possible for podman build and commit. Resolves #586 Signed-off-by: baude <bbaude@redhat.com> Closes: #681 Approved by: mheon
* varlink imagesbaude2018-04-26
| | | | | | | | | | | | | implement varlink image functions for working with libpod with the exception of a couple due to incompletions on the libpod side of things (build). also, created a first pass at a libpodpy package which will stand as a client to working with libpod's varlink methods using python. Signed-off-by: baude <bbaude@redhat.com> Closes: #669 Approved by: baude
* Add --default-mounts-file hidden flagumohnani82018-04-26
| | | | | | | | | | | The hidden flag is used to override the path of the default mounts file for testing purposes. Also modified the secrets pkg to allow for this override to happen. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #678 Approved by: mheon
* Only generate the varlink glue code if needed and from the vendor dirHarald Hoyer2018-04-25
| | | | | Closes: #671 Approved by: baude
* Updated varlink vendored codebaude2018-04-25
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #670 Approved by: mheon
* packagers need the varlink generated filebaude2018-04-24
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #664 Approved by: baude
* Initial varlink implementationbaude2018-04-23
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #627 Approved by: mheon
* podman push without destination imagebaude2018-04-20
| | | | | | | | | | | | | the destination image for podman push should be optional (if the destination has already been tagged in). the man page for podman push describes that it should work this way. Resolves: #645 Signed-off-by: baude <bbaude@redhat.com> Closes: #646 Approved by: mheon
* Print ctr ID if neither STDOUT and STDERR are attachedMatthew Heon2018-04-19
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #638 Approved by: rhatdan
* Vendor in latest containers/image and contaners/storageumohnani82018-04-19
| | | | | | | | | Made necessary changes to functions to include contex.Context wherever needed Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #640 Approved by: baude
* It is OK to start an already running container (with no attach)baude2018-04-18
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #637 Approved by: rhatdan
* Refactor logic for forceSecure in pull for readabilityMatthew Heon2018-04-18
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #636 Approved by: rhatdan
* Small logic fix for podman pull with tls-verifyMatthew Heon2018-04-18
| | | | | | | | | | Ensure we don't force TLS verification when --tls-verify is set to false. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #636 Approved by: rhatdan
* Allow podman start to attach to a running containerbaude2018-04-18
| | | | | | | | | | If a container is already running, and a user asks to start it -a (attach), we should honor this and attach to the container. Signed-off-by: baude <bbaude@redhat.com> Closes: #634 Approved by: baude
* regression: tls verify should be set on registries.conf if insecurebaude2018-04-18
| | | | | | | | | | | In the case where podman needs to pull an image, if that registry that the image resides on is known to be insesure (as defined in /etc/containers/registries.conf), tls-verify should be altered on the fly. Signed-off-by: baude <bbaude@redhat.com> Closes: #626 Approved by: mheon
* Allow podman to exit exit codes of removed containersMatthew Heon2018-04-17
| | | | | | | | | | | | | | | We can read the exit file created by conmon to get the exit code instead of querying libpod. Also, do not error on cleanup if the container is already gone, as a completely removed container is definitely cleaned up. Resolves: #527 Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #632 Approved by: rhatdan
* validate dns-search values prior to creationbaude2018-04-16
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #628 Approved by: baude
* podman pull should always try to pullbaude2018-04-14
| | | | | | | | | | | | | | In the case where you have an image local, if the the user runs podman pull, we should always attempt to pull an updated image. Added a forceRemote bool to New (image) so we can differentiate between "pull" or run because the actions differ. Run does not need to pull the latest -- only run. Signed-off-by: baude <bbaude@redhat.com> Closes: #618 Approved by: baude
* Allow the use of -i/-a on any containerbaude2018-04-14
| | | | | | | | | | | | | We used to not allow the use of -a/-i on containers that were not started with -i or a tty. Given the improvements in our terminal handling, this should work now. This also fixes a systemic problem with the autotests. Signed-off-by: baude <bbaude@redhat.com> Closes: #617 Approved by: baude
* Change attach to accept a struct containing streamsMatthew Heon2018-04-13
| | | | | | | | | | | Comparing Go interfaces, like io.Reader, to nil does not work. As such, we need to include a bool with each stream telling whether to attach to it. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #608 Approved by: baude
* Fix terminal attachMatthew Heon2018-04-13
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #608 Approved by: baude
* Changes to attach to enable per-stream attachingMatthew Heon2018-04-13
| | | | | | | | | | This allows us to attach to attach to just stdout or stderr or stdin, or any combination of these. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #608 Approved by: baude
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