summaryrefslogtreecommitdiff
path: root/libpod/container_internal.go
Commit message (Collapse)AuthorAge
* Spell check strings and commentsJhon Honce2018-05-25
| | | | | | | Signed-off-by: Jhon Honce <jhonce@redhat.com> Closes: #831 Approved by: rhatdan
* Set Entrypoint from image only if not already setMatthew Heon2018-05-24
| | | | | | | Signed-off-by: Matthew Heon <mheon@redhat.com> Closes: #827 Approved by: rhatdan
* Fix handling of command in imagesDaniel J Walsh2018-05-23
| | | | | | | | | | | Currently we are dropping the command entry from the create line and using the image Cmd. This change will only use the image Cmd if the user did not specify a Cmd. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #823 Approved by: umohnani8
* podman create, start, getattachsocketbaude2018-05-21
| | | | | | | | | First pass at implement API endpoints for create and start. Signed-off-by: baude <bbaude@redhat.com> Closes: #805 Approved by: baude
* Use container cleanup() functions when removingMatthew Heon2018-05-17
| | | | | | | | | | | | Instead of manually calling the individual functions that cleanup uses to tear down a container's resources, just call the cleanup function to make sure that cleanup only needs to happen in one place. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #790 Approved by: rhatdan
* chrootuser: default to GID 0 when given a numeric --userNalin Dahyabhai2018-05-17
| | | | | | | | | | | | | | | When we're given a numeric --user value, default to GID 0 if the numeric ID doesn't correspond to a user entry in /etc/passwd that can provide us with the user's primary group ID. Make sure that GetAdditionalGroupsForUser() returns wrapped errors. Also test various user:group forms. Signed-off-by: Nalin Dahyabhai <nalin@redhat.com> Closes: #728 Approved by: mheon
* hooks: Add package support for extension stagesW. Trevor King2018-05-14
| | | | | | | | | | | | | We aren't consuming this yet, but these pkg/hooks changes lay the groundwork for future libpod changes to support post-exit hooks [1,2]. [1]: https://github.com/projectatomic/libpod/issues/730 [2]: https://github.com/opencontainers/runc/issues/1797 Signed-off-by: W. Trevor King <wking@tremily.us> Closes: #758 Approved by: rhatdan
* Gracefully handle containers removed from c/storageMatthew Heon2018-05-14
| | | | | | | | | | Allow containers that no longer exist in storage to be evicted from the state instead of erroring. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #764 Approved by: rhatdan
* hooks: Order injection by collated JSON filenameW. Trevor King2018-05-11
| | | | | | | | | | | | | | | | | | | | | | | We also considered ordering with sort.Strings, but Matthew rejected that because it uses a byte-by-byte UTF-8 comparison [1] which would fail many language-specific conventions [2]. There's some more discussion of the localeToLanguage mapping in [3]. Currently language.Parse does not handle either 'C' or 'POSIX', returning: und, language: tag is not well-formed for both. [1]: https://github.com/projectatomic/libpod/pull/686#issuecomment-387914358 [2]: https://en.wikipedia.org/wiki/Alphabetical_order#Language-specific_conventions [3]: https://github.com/golang/go/issues/25340 Signed-off-by: W. Trevor King <wking@tremily.us> Closes: #686 Approved by: mheon
* 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
* Do not error trying to remove cgroups that don't existMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #507 Approved by: baude
* Remove parent cgroup we create with cgroupfsMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #507 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
* Add validation for CGroup parents. Pass CGroups path into runcMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #507 Approved by: baude
* podman, userNS: configure an intermediate mount namespaceGiuseppe Scrivano2018-05-04
| | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #690 Approved by: mheon
* 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
* 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
* Update hooks to use config bool to detect volume mountsMatthew Heon2018-05-03
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #700 Approved by: rhatdan
* 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
* Modify --user flag for podman create and runumohnani82018-04-24
| | | | | | | | | | If an integer is passed into the --user flag, i.e --user=1234 don't look up the user in /etc/passwd, just assign the integer as the uid. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #652 Approved by: mheon
* Add FIPS mode secretumohnani82018-04-23
| | | | | | | | If the host is in FIPS mode and /etc/system-fips exists /run/secrets/system-fips is created in the container so that the container can run in FIPS mode as well. Signed-off-by: umohnani8 <umohnani@redhat.com>
* 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
* - reverse host field order (ip goes first)Nathan Williams2018-04-18
| | | | | | | | | - fix host string split to permit IPv6 Signed-off-by: Nathan Williams <nath.e.will@gmail.com> Closes: #635 Approved by: rhatdan
* Change container.locked to batchedTomSweeneyRedHat2018-04-16
| | | | | | | Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com> Closes: #619 Approved by: mheon
* Functionality changes to the following flagsumohnani82018-04-06
| | | | | | | | | | | | | | | | | | | --group-add --blkio-weight-device --device-read-bps --device-write-bps --device-read-iops --device-write-iops --group-add now supports group names as well as the gid associated with them. All the --device flags work now with moderate changes to the code to support both bps and iops. Added tests for all the flags. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #590 Approved by: mheon
* Add hooks support to podmanDaniel J Walsh2018-04-05
| | | | | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #155 Approved by: mheon
* Refactor dependency checks from init() into public APIMatthew Heon2018-04-03
| | | | | | | | | | | | | Instead of checking during init(), which could result in major locking issues when used with pods, make our dependency checks in the public API instead. This avoids doing them when we start pods (where, because of the dependency graph, we can reasonably say all dependencies are up before we start a container). Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #577 Approved by: rhatdan
* Ensure dependencies are running before initializing containersMatthew Heon2018-04-03
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #577 Approved by: rhatdan
* Change errorf to warnf in warning removing ctr storageMatthew Heon2018-04-02
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #571 Approved by: rhatdan
* More gracefully handle unexpected storage deletionMatthew Heon2018-04-02
| | | | | | | | | | | | | | | | | | We have other tools using containers/storage. They can delete our containers in c/storage without us knowing. Try and handle this better by warning instead of erroring when delete our storage and it is already gone. This does not handle cases where libpod thinks the container is mounted, but it is not. This is harder to check for, because c/storage Mount() and Unmount() take a layer, image, or container and that complicates our "container no longer exists" question. Further work is needed here. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #571 Approved by: rhatdan
* Add secrets patch to podmanumohnani82018-03-29
| | | | | | | | | | Adds support for mounting secrets especially on RHEL where the container can use the host subsription to run yum Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #544 Approved by: rhatdan
* Check for duplicate names when generating new container and pod names.Daniel J Walsh2018-03-29
| | | | | | | | | This fixes the situation where we fail to create a container when a name already exists. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #517 Approved by: baude
* Make container env variable conditionalMatthew Heon2018-03-23
| | | | | | | | | | | | Add only when it's not already present. Add a more specific version in podman spec generation so we get 'container=podman' not 'container=libpod' Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #540 Approved by: baude
* Add CONTAINER environment variableMatthew Heon2018-03-23
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #533 Approved by: baude
* Document .containerenv in manpages. Move it to /run.Matthew Heon2018-03-23
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #533 Approved by: baude
* Add .containerenv fileMatthew Heon2018-03-23
| | | | | | | | | | This will allow programs to easily identify they are running in a container Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #533 Approved by: baude
* Migrate podman inspect and tag to image librarybaude2018-03-21
| | | | | | | Signed-off-by: baude <bbaude@redhat.com> Closes: #525 Approved by: baude
* Image library stage 4 - create and commitbaude2018-03-20
| | | | | | | | | | Migrate the podman create and commit subcommandis to leverage the images library. I also had to migrate the cmd/ portions of run and rmi. Signed-off-by: baude <bbaude@redhat.com> Closes: #498 Approved by: mheon
* Add additional debug loggingMatthew Heon2018-03-15
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #482 Approved by: baude
* Add StartAndAttach() API endpoint for containersMatthew Heon2018-03-15
| | | | | | | | | | | | This solves our prior problems with attach races by ensuring the order is correct. Also contains substantial cleanups to the attach code. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #482 Approved by: baude
* Implement container restartingMatthew Heon2018-03-15
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #482 Approved by: baude
* Stage3 Image Librarybaude2018-03-14
| | | | | | | | | | | | | This represents the stage3 implementation for the image library. At this point, we are moving the image-centric functions to pkg/image including migration of args and object-oriented references. This is a not a one-for-one migration of funcs and some funcs will need to continue to reside in runtime_img as they are overly specific to libpod and probably not useful to others. Signed-off-by: baude <bbaude@redhat.com> Closes: #484 Approved by: baude
* Modify pod API to move Init() into Start()Matthew Heon2018-03-13
| | | | | | | | | | | | | Separate Init() and Start() does not make sense on the pod side, where we may have to start containers in order to initialize others due to dependency orders. Also adjusts internal containers API for more code sharing. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #478 Approved by: rhatdan
* Convert bind mounts to use DB fieldMatthew Heon2018-03-08
| | | | | | | | | | | | | | | Refactors creation of bind mounts into a separate function that can be called from elsewhere (e.g. pod start or container restart). This function stores the mounts in the DB using the field established last commit. Spec generation now relies upon this field in the DB instead of manually enumerating files to be bind mounted in. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #462 Approved by: baude
* Move internal function resizeTty to container_internalMatthew Heon2018-03-08
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #462 Approved by: baude
* Make WriteStringToRundir internalMatthew Heon2018-03-08
| | | | | | | | | | We don't want this in our public API - better to let us control what gets put in container storage and where. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #462 Approved by: baude
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-27 06:55:34 +0000