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path: root/libpod/options.go
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* Add event logging to libpod, even display to podmanbaude2019-03-11
| | | | | | | | | | | | | | | | | In lipod, we now log major events that occurr. These events can be displayed using the `podman events` command. Each event contains: * Type (container, image, volume, pod...) * Status (create, rm, stop, kill, ....) * Timestamp in RFC3339Nano format * Name (if applicable) * Image (if applicable) The format of the event and the varlink endpoint are to not be considered stable until cockpit has done its enablement. Signed-off-by: baude <bbaude@redhat.com>
* libpod: allow to configure path to the network-cmd binaryGiuseppe Scrivano2019-03-11
| | | | | | | | | | | | | allow to configure the path to the network-cmd binary, either via an option flag --network-cmd-path or through the libpod.conf configuration file. This is currently used to customize the path to the slirp4netns binary. Closes: https://github.com/containers/libpod/issues/2506 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* podman healthcheck run (phase 1)baude2019-03-05
| | | | | | | | | Add the ability to manually run a container's healthcheck command. This is only the first phase of implementing the healthcheck. Subsequent pull requests will deal with the exposing the results and history of healthchecks as well as the scheduling. Signed-off-by: baude <bbaude@redhat.com>
* Only remove image volumes when removing containersMatthew Heon2019-02-26
| | | | | | | | | | | | When removing volumes with rm --volumes we want to only remove volumes that were created with the container. Volumes created separately via 'podman volume create' should not be removed. Also ensure that --rm implies volumes will be removed. Fixes #2441 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Validate VolumePath against DB configurationMatthew Heon2019-02-26
| | | | | | | | | If this doesn't match, we end up not being able to access named volumes mounted into containers, which is bad. Use the same validation that we use for other critical paths to ensure this one also matches. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* When location of c/storage root changes, set VolumePathMatthew Heon2019-02-26
| | | | | | | | | | | | | | | We want named volumes to be created in a subdirectory of the c/storage graph root, the same as the libpod root directory is now. As such, we need to adjust its location when the graph root changes location. Also, make a change to how we set the default. There's no need to explicitly set it every time we initialize via an option - that might conflict with WithStorageConfig setting it based on graph root changes. Instead, just initialize it in the default config like our other settings. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Fix up handling of user defined network namespacesDaniel J Walsh2019-02-23
| | | | | | | | | If user specifies network namespace and the /etc/netns/XXX/resolv.conf exists, we should use this rather then /etc/resolv.conf Also fail cleaner if the user specifies an invalid Network Namespace. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* podman: --runtime has higher priority on runtime_pathGiuseppe Scrivano2019-02-22
| | | | | | | if --runtime is specified, then it has higher priority on the runtime_path option, which was added for backward compatibility. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Do not make renumber shut down the runtimeMatthew Heon2019-02-21
| | | | | | | | | | | | | | | The original intent behind the requirement was to ensure that, if two SHM lock structs were open at the same time, we should not make such a runtime available to the user, and should clean it up instead. It turns out that we don't even need to open a second SHM lock struct - if we get an error mapping the first one due to a lock count mismatch, we can just delete it, and it cleans itself up when it errors. So there's no reason not to return a valid runtime. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Move RenumberLocks into runtime initMatthew Heon2019-02-21
| | | | | | | | | | | | | | | | | | We can't do renumbering after init - we need to open a potentially invalid locks file (too many/too few locks), and then potentially delete the old locks and make new ones. We need to be in init to bypass the checks that would otherwise make this impossible. This leaves us with two choices: make RenumberLocks a separate entrypoint from NewRuntime, duplicating a lot of configuration load code (we need to know where the locks live, how many there are, etc) - or modify NewRuntime to allow renumbering during it. Previous experience says the first is not really a viable option and produces massive code bloat, so the second it is. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Fix volume handling in podmanDaniel J Walsh2019-02-14
| | | | | | | | | | | | | | | | | | iFix builtin volumes to work with podman volume Currently builtin volumes are not recored in podman volumes when they are created automatically. This patch fixes this. Remove container volumes when requested Currently the --volume option on podman remove does nothing. This will implement the changes needed to remove the volumes if the user requests it. When removing a volume make sure that no container uses the volume. Signed-off-by: Daniel J Walsh dwalsh@redhat.com Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* oci: allow to define multiple OCI runtimesGiuseppe Scrivano2019-01-14
| | | | | | | | | | | | | | | | | | | | | | | | we can define multiple OCI runtimes that can be chosen with --runtime. in libpod.conf is possible to specify them with: [runtimes] foo = [ "/usr/bin/foo", "/usr/sbin/foo", ] bar = [ "/usr/bin/foo", "/usr/sbin/foo", ] If the argument to --runtime is an absolute path then it is used directly without any lookup in the configuration. Closes: https://github.com/containers/libpod/issues/1750 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* libpod: allow multiple oci runtimesVincent Batts2019-01-14
| | | | | | | | | | This deprecates the libpod.conf variable of `runtime_path=`, and now has `runtimes=`, like a map for naming the runtime, preparing for a `--runtime` flag to `podman run` (i.e. runc, kata, etc.) Reference: https://github.com/containers/libpod/issues/1750 Signed-off-by: Vincent Batts <vbatts@hashbangbash.com>
* Switch all referencs to image.ContainerConfig to image.ConfigDaniel J Walsh2018-12-21
| | | | | | This will more closely match what Docker is doing. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Ensure storage options are properly initializedMatthew Heon2018-12-10
| | | | | | | | | If one of storage GraphRoot or RunRoot are specified, but the other is not, c/storage will not use the default, and will throw an error instead. Ensure that in cases where this would happen, we populate the fields with the c/storage defaults ourselves. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Add "podman volume" commandumohnani82018-12-06
| | | | | | | | | | | | | | | Add support for podman volume and its subcommands. The commands supported are: podman volume create podman volume inspect podman volume ls podman volume rm podman volume prune This is a tool to manage volumes used by podman. For now it only handle named volumes, but eventually it will handle all volumes used by podman. Signed-off-by: umohnani8 <umohnani@redhat.com>
* Merge pull request #1918 from mheon/use_db_pathsOpenShift Merge Robot2018-12-05
|\ | | | | Use paths written in DB instead if they differ from our defaults
| * Fix libpod static dir selection when graphroot changedMatthew Heon2018-12-03
| | | | | | | | | | | | | | | | When graphroot is set by the user, we should set libpod's static directory to a subdirectory of that by default, to duplicate previous behavior. Signed-off-by: Matthew Heon <mheon@redhat.com>
| * Move rootless storage config into libpodMatthew Heon2018-12-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Previous commits ensured that we would use database-configured paths if not explicitly overridden. However, our runtime generation did unconditionally override storage config, which made this useless. Move rootless storage configuration setup to libpod, and change storage setup so we only override if a setting is explicitly set, so we can still override what we want. Signed-off-by: Matthew Heon <mheon@redhat.com>
| * 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>
* | libpod/container_internal: Deprecate implicit hook directoriesW. Trevor King2018-12-03
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Part of the motivation for 800eb863 (Hooks supports two directories, process default and override, 2018-09-17, #1487) was [1]: > We only use this for override. The reason this was caught is people > are trying to get hooks to work with CoreOS. You are not allowed to > write to /usr/share... on CoreOS, so they wanted podman to also look > at /etc, where users and third parties can write. But we'd also been disabling hooks completely for rootless users. And even for root users, the override logic was tricky when folks actually had content in both directories. For example, if you wanted to disable a hook from the default directory, you'd have to add a no-op hook to the override directory. Also, the previous implementation failed to handle the case where there hooks defined in the override directory but the default directory did not exist: $ podman version Version: 0.11.2-dev Go Version: go1.10.3 Git Commit: "6df7409cb5a41c710164c42ed35e33b28f3f7214" Built: Sun Dec 2 21:30:06 2018 OS/Arch: linux/amd64 $ ls -l /etc/containers/oci/hooks.d/test.json -rw-r--r--. 1 root root 184 Dec 2 16:27 /etc/containers/oci/hooks.d/test.json $ podman --log-level=debug run --rm docker.io/library/alpine echo 'successful container' 2>&1 | grep -i hook time="2018-12-02T21:31:19-08:00" level=debug msg="reading hooks from /usr/share/containers/oci/hooks.d" time="2018-12-02T21:31:19-08:00" level=warning msg="failed to load hooks: {}%!(EXTRA *os.PathError=open /usr/share/containers/oci/hooks.d: no such file or directory)" With this commit: $ podman --log-level=debug run --rm docker.io/library/alpine echo 'successful container' 2>&1 | grep -i hook time="2018-12-02T21:33:07-08:00" level=debug msg="reading hooks from /usr/share/containers/oci/hooks.d" time="2018-12-02T21:33:07-08:00" level=debug msg="reading hooks from /etc/containers/oci/hooks.d" time="2018-12-02T21:33:07-08:00" level=debug msg="added hook /etc/containers/oci/hooks.d/test.json" time="2018-12-02T21:33:07-08:00" level=debug msg="hook test.json matched; adding to stages [prestart]" time="2018-12-02T21:33:07-08:00" level=warning msg="implicit hook directories are deprecated; set --hooks-dir="/etc/containers/oci/hooks.d" explicitly to continue to load hooks from this directory" time="2018-12-02T21:33:07-08:00" level=error msg="container create failed: container_linux.go:336: starting container process caused "process_linux.go:399: container init caused \"process_linux.go:382: running prestart hook 0 caused \\\"error running hook: exit status 1, stdout: , stderr: oh, noes!\\\\n\\\"\"" (I'd setup the hook to error out). You can see that it's silenly ignoring the ENOENT for /usr/share/containers/oci/hooks.d and continuing on to load hooks from /etc/containers/oci/hooks.d. When it loads the hook, it also logs a warning-level message suggesting that callers explicitly configure their hook directories. That will help consumers migrate, so we can drop the implicit hook directories in some future release. When folks *do* explicitly configure hook directories (via the newly-public --hooks-dir and hooks_dir options), we error out if they're missing: $ podman --hooks-dir /does/not/exist run --rm docker.io/library/alpine echo 'successful container' error setting up OCI Hooks: open /does/not/exist: no such file or directory I've dropped the trailing "path" from the old, hidden --hooks-dir-path and hooks_dir_path because I think "dir(ectory)" is already enough context for "we expect a path argument". I consider this name change non-breaking because the old forms were undocumented. Coming back to rootless users, I've enabled hooks now. I expect they were previously disabled because users had no way to avoid /usr/share/containers/oci/hooks.d which might contain hooks that required root permissions. But now rootless users will have to explicitly configure hook directories, and since their default config is from ~/.config/containers/libpod.conf, it's a misconfiguration if it contains hooks_dir entries which point at directories with hooks that require root access. We error out so they can fix their libpod.conf. [1]: https://github.com/containers/libpod/pull/1487#discussion_r218149355 Signed-off-by: W. Trevor King <wking@tremily.us>
* network: allow slirp4netns mode also for root containersGiuseppe Scrivano2018-11-28
| | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Allow users to expose ports from the pod to the hostbaude2018-11-20
| | | | | | | | | | we need to allow users to expose ports to the host for the purposes of networking, like a webserver. the port exposure must be done at the time the pod is created. strictly speaking, the port exposure occurs on the infra container. Signed-off-by: baude <bbaude@redhat.com>
* Allow containers/storage to handle on SELinux labelingDaniel J Walsh2018-10-23
| | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Mount proper cgroup for systemd to manage inside of the container.Daniel J Walsh2018-10-15
| | | | | | | | | | | | We are still requiring oci-systemd-hook to be installed in order to run systemd within a container. This patch properly mounts /sys/fs/cgroup/systemd/libpod_parent/libpod-UUID on /sys/fs/cgroup/systemd inside of container. Since we need the UUID of the container, we needed to move Systemd to be a config option of the container. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Fix gofmtMatthew Heon2018-10-11
| | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Temporary commit to swap branchesMatthew Heon2018-10-11
| | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.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
* Pass on securityOpts from podInfraContainer to container added to pod.Daniel J Walsh2018-09-11
| | | | | | | | | | This is an incomplete fix, as it would be best for the libpod library to be in charge of coordinating the container's dependencies on the infra container. A TODO was left as such. UTS is a special case, because the docker library that namespace handling is based off of doesn't recognize a UTS based on another container as valid, despite the library being able to handle it correctly. Thus, it is left in the old way. Signed-off-by: haircommander <pehunt@redhat.com> Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #1347 Approved by: mheon
* Refactor error checking in With*NSFromPod optionshaircommander2018-08-23
| | | | | | | Signed-off-by: haircommander <pehunt@redhat.com> Closes: #1187 Approved by: mheon
* Fixing network ns segfaulthaircommander2018-08-23
| | | | | | | | | As well as small style corrections, update pod_top_test to use CreatePod, and move handling of adding a container to the pod's namespace from container_internal_linux to libpod/option. Signed-off-by: haircommander <pehunt@redhat.com> Closes: #1187 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
* Add --namespace flag to PodmanMatthew Heon2018-07-24
| | | | | | | Allows joining libpod to a specific namespace when running a Podman command. 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>
* Add container and pod namespaces to configsMatthew Heon2018-07-24
| | | | | | | Libpod namespaces are a way to logically separate groups of pods and containers within the state. Signed-off-by: Matthew Heon <matthew.heon@gmail.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
* Add --volumes-from flag to podman run and createumohnani82018-07-09
| | | | | | | | | | podman now supports --volumes-from flag, which allows users to add all the volumes an existing container has to a new one. Signed-off-by: umohnani8 <umohnani@redhat.com> Closes: #931 Approved by: mheon
* Add `podman container cleanup` to CLIDaniel J Walsh2018-06-29
| | | | | | | | | | | | | When we run containers in detach mode, nothing cleans up the network stack or the mount points. This patch will tell conmon to execute the cleanup code when the container exits. It can also be called to attempt to cleanup previously running containers. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Closes: #942 Approved by: mheon
* podman: accept option --rootfs to use exploded imagesGiuseppe Scrivano2018-06-15
| | | | | | | Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Closes: #871 Approved by: mheon
* Add per-pod CGroupsMatthew Heon2018-05-17
| | | | | | | | | | | | | Pods can now create their own (cgroupfs) cgroups which containers in them can (optionally) use. This presently only works with CGroupFS, systemd cgroups are still WIP 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
* Add --cgroup-manager flag to Podman binaryMatthew Heon2018-05-11
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #507 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
* 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
* Further fix Godoc comments in options.goMatthew Heon2018-05-03
| | | | | | | Signed-off-by: Matthew Heon <matthew.heon@gmail.com> Closes: #700 Approved by: rhatdan
* Fix Godoc comments in options.goMatthew Heon2018-05-03
| | | | | | | 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
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