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path: root/libpod/runtime.go
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* Add a struct indicating if some Runtime fields were setMatthew Heon2018-12-02
| | | | | | | | | | | | | | | | To configure runtime fields from the database, we need to know whether they were explicitly overwritten by the user (we don't want to overwrite anything that was explicitly set). Store a struct containing whether the variables we'll grab from the DB were explicitly set by the user so we know what we can and can't overwrite. This determines whether libpod runtime and static dirs were set via config file in a horribly hackish way (double TOML decode), but I can't think of a better way, and it shouldn't be that expensive as the libpod config is tiny. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Make DB config validation an explicit stepMatthew Heon2018-12-02
| | | | | | | | | | Previously, we implicitly validated runtime configuration against what was stored in the database as part of database init. Make this an explicit step, so we can call it after the database has been initialized. This will allow us to retrieve paths from the database and use them to overwrite our defaults if they differ. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Move DB configuration up in runtime setupMatthew Heon2018-12-02
| | | | | | | When we configure a runtime, we now will need to hit the DB early on, so we can verify the paths we're going to use for c/storage are correct. Signed-off-by: Matthew Heon <mheon@redhat.com>
* rootless: create libpod.conf when it doesn't existGiuseppe Scrivano2018-11-19
| | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Sync default config with libpod.confAnders F Björklund2018-10-29
| | | | | | Only changed libpod.conf file, which might not even be in use. Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
* Use more reliable check for rootless for firewall initMatthew Heon2018-10-23
| | | | | | | | | | We probably won't be able to initialize a firewall plugin when we are not running as root, so we shouldn't even try. Replace the less-effect EUID check with the rootless package's better check to make sure we don't accidentally set up the firewall in these cases. Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Move rootless directory handling to the libpod/pkg/util directoryDaniel J Walsh2018-10-22
| | | | | | This should allow us to share this code with buildah. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* rootless: always set XDG_RUNTIME_DIRGiuseppe Scrivano2018-10-03
| | | | | | | | it is used internally by containers/image to locate the auth file. Closes: https://github.com/containers/libpod/issues/1457 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* runtime: fix message which assumes the runtime is runcGiuseppe Scrivano2018-10-01
| | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Add new field to libpod to indicate whether or not to use labellingDaniel J Walsh2018-09-20
| | | | | | | | | | | | | | | Also update some missing fields libpod.conf obtions in man pages. Fix sort order of security options and add a note about disabling labeling. When a process requests a new label. libpod needs to reserve all labels to make sure that their are no conflicts. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #1406 Approved by: mheon
* Hooks supports two directories, process default and overrideDaniel J Walsh2018-09-17
| | | | | | | | | | | | | ALso cleanup files section or podman man page Add description of policy.json Sort alphabetically. Add more info on oci hooks Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #1487 Approved by: umohnani8
* Add a way to disable port reservationMatthew Heon2018-09-13
| | | | | | | | | | | We've increased the default rlimits to allow Podman to hold many ports open without hitting limits and crashing, but this doesn't solve the amount of memory that holding open potentially thousands of ports will use. Offer a switch to optionally disable port reservation for performance- and memory-constrained use cases. Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Explicitly set default CNI network name in libpod.confMatthew Heon2018-09-12
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #1438 Approved by: TomSweeneyRedHat
* Vendor CNI plugins firewall codeMatthew Heon2018-09-10
| | | | | | | | | | | | | | The upstream CNI project has a PR open for adding iptables and firewalld support, but this has been stalled for the better part of a year upstream. On advice of several maintainers, we are vendoring this code into libpod, to perform the relevant firewall configuration ourselves. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #1431 Approved by: baude
* rootless: check uid with Geteuid() instead of Getuid()Giuseppe Scrivano2018-09-04
| | | | | | | | | | | | change the tests to use chroot to set a numeric UID/GID. Go syscall.Credential doesn't change the effective UID/GID of the process. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #1372 Approved by: mheon
* rootless: be in an userns to initialize the runtimeGiuseppe Scrivano2018-09-04
| | | | | | | | | | | be sure to be in an userns for a rootless process before initializing the runtime. In case we are not running as uid==0, take advantage of "podman info" that creates the runtime. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #1372 Approved by: mheon
* rootless: fix execGiuseppe Scrivano2018-08-26
| | | | | | | | | | | | | | | | | | | | | We cannot re-exec into a new user namespace to gain privileges and access an existing as the new namespace is not the owner of the existing container. "unshare" is used to join the user namespace of the target container. The current implementation assumes that the main process of the container didn't create a new user namespace. Since in the setup phase we are not running with euid=0, we must skip the setup for containers/storage. Closes: https://github.com/containers/libpod/issues/1329 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #1331 Approved by: rhatdan
* rootless: allow to override policy.json by the userGiuseppe Scrivano2018-08-24
| | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #1336 Approved by: mheon
* Change pause container to infra containerhaircommander2018-08-23
| | | | | | | Signed-off-by: haircommander <pehunt@redhat.com> Closes: #1187 Approved by: mheon
* Added option to share kernel namespaces in libpod and podmanhaircommander2018-08-23
| | | | | | | | | A pause container is added to the pod if the user opts in. The default pause image and command can be overridden. Pause containers are ignored in ps unless the -a option is present. Pod inspect and pod ps show shared namespaces and pause container. A pause container can't be removed with podman rm, and a pod can be removed if it only has a pause container. Signed-off-by: haircommander <pehunt@redhat.com> Closes: #1187 Approved by: mheon
* switch projectatomic to containersDaniel J Walsh2018-08-16
| | | | | | | | | | Need to get some small changes into libpod to pull back into buildah to complete buildah transition. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #1270 Approved by: mheon
* Remove unused function in runtime.goMatthew Heon2018-08-14
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #1264 Approved by: mheon
* Merge pull request #1254 from mheon/systemd_cgroups_defaultMatthew Heon2018-08-11
|\ | | | | Switch default CGroup manager to systemd
| * Swap default CGroup manager to systemdMatthew Heon2018-08-10
| | | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* | Make errors during refresh nonfatalMatthew Heon2018-08-10
|/ | | | | | | | | | | | | | | | During refresh, we cannot hard-fail, as that would mean leaving a partially-configured state behind, leaving libpod unable to start without manual intervention. Instead, log errors refreshing individual containers and pods and continue. Individual containers and pods may be unusable and need to be removed manually, but libpod itself will continue to function. Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #1252 Approved by: rhatdan
* Add missing runtime.go lines to set namespaceMatthew Heon2018-07-24
| | | | | | Also add namespace to inspect output to verify its presence Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Add constraint that dependencies must be in the same nsMatthew Heon2018-07-24
| | | | | | | Dependency containers must be in the same namespace, to ensure there are never problems resolving a dependency. Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Merge pull request #1075 from giuseppe/rootless-no-symlinks-into-storage-pathDaniel J Walsh2018-07-13
|\ | | | | rootless: fix usage on Fedora Silverblue/CoreOS
| * runtime: delete unused functionGiuseppe Scrivano2018-07-11
| | | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
| * rootless: propagate errors from GetRootlessRuntimeDir()Giuseppe Scrivano2018-07-11
| | | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* | Support multiple networksbaude2018-07-12
|/ | | | | | | | | | | | | This is a refresh of Dan William's PR #974 with a rebase and proper vendoring of ocicni and containernetworking/cni. It adds the ability to define multiple networks as so: podman run --network=net1,net2,foobar ... Signed-off-by: baude <bbaude@redhat.com> Closes: #1082 Approved by: baude
* rootless: add /run/user/$UID to the lookup pathsGiuseppe Scrivano2018-07-05
| | | | | | | | | | when XDG_RUNTIME_DIR is not set, still attempt to use /run/user/$UID before looking up other directories. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #1048 Approved by: mheon
* rootless: always set XDG_RUNTIME_DIRGiuseppe Scrivano2018-07-05
| | | | | | | | | containers/image uses XDG_RUNTIME_DIR to locate the auth file. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #1048 Approved by: mheon
* rootless: use $HOME/.config/containers/libpod.confGiuseppe Scrivano2018-06-27
| | | | | | | | | If the file exists, use it to read the configuration. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #936 Approved by: rhatdan
* oci: set XDG_RUNTIME_DIR to the runtime from GetRootlessRuntimeDir()Giuseppe Scrivano2018-06-27
| | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #936 Approved by: rhatdan
* rootless: add management for the userNSGiuseppe Scrivano2018-06-27
| | | | | | | | | | When running podman as non root user always create an userNS and let the OCI runtime use it. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #936 Approved by: rhatdan
* Make CGroups cleanup optional on whether they existMatthew Heon2018-06-22
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #981 Approved by: baude
* We are using err in defer function, needs to be defined nameDaniel J Walsh2018-06-22
| | | | | | | | | | Since we are checking if err is non nil in defer function we need to define it, so that the check will work correctly. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #985 Approved by: mheon
* Add --all,-a flag to podman imagesumohnani82018-06-18
| | | | | | | | | | | podman images will not show intermediate images by default. To view all images, including intermediate images created during a build, use the --all flag. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #947 Approved by: rhatdan
* podman: use a different store for the rootless caseGiuseppe Scrivano2018-06-15
| | | | | | | | | so that the user has rw access to it. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #871 Approved by: mheon
* oci: do not set the cgroup path in Rootless modeGiuseppe Scrivano2018-06-15
| | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #871 Approved by: mheon
* runtime: add /usr/libexec/podman/conmon to the conmon pathsGiuseppe Scrivano2018-06-01
| | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Spell check strings and commentsJhon Honce2018-05-25
| | | | | | | Signed-off-by: Jhon Honce <jhonce@redhat.com> Closes: #831 Approved by: rhatdan
* Refresh pods when refreshing podman stateMatthew Heon2018-05-17
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #784 Approved by: rhatdan
* 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
* Add --cgroup-manager flag to Podman binaryMatthew 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
* Modify secrets pkgumohnani82018-04-27
| | | | | | | | | | | Made a mistake in my earlier patch. I though that if you add an empty string to an array, the length of the array would still be 0... Realised this when vendoring the secrets pkg into cri-o. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #685 Approved by: mheon
* 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
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