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path: root/libpod/options.go
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* Merge pull request #8156 from mheon/add_net_aliases_dbOpenShift Merge Robot2020-11-04
|\ | | | | Add network aliases for containers to DB
| * Add network aliases for containers to DBMatthew Heon2020-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the database backend for network aliases. Aliases are additional names for a container that are used with the CNI dnsname plugin - the container will be accessible by these names in addition to its name. Aliases are allowed to change over time as the container connects to and disconnects from networks. Aliases are implemented as another bucket in the database to register all aliases, plus two buckets for each container (one to hold connected CNI networks, a second to hold its aliases). The aliases are only unique per-network, to the global and per-container aliases buckets have a sub-bucket for each CNI network that has aliases, and the aliases are stored within that sub-bucket. Aliases are formatted as alias (key) to container ID (value) in both cases. Three DB functions are defined for aliases: retrieving current aliases for a given network, setting aliases for a given network, and removing all aliases for a given network. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* | Stop excessive wrapping of errorsDaniel J Walsh2020-10-30
| | | | | | | | | | | | | | | | | | | | | | | | Most of the builtin golang functions like os.Stat and os.Open report errors including the file system object path. We should not wrap these errors and put the file path in a second time, causing stuttering of errors when they get presented to the user. This patch tries to cleanup a bunch of these errors. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | new "image" mount typeValentin Rothberg2020-10-29
|/ | | | | | | | | | | | | | Add a new "image" mount type to `--mount`. The source of the mount is the name or ID of an image. The destination is the path inside the container. Image mounts further support an optional `rw,readwrite` parameter which if set to "true" will yield the mount writable inside the container. Note that no changes are propagated to the image mount on the host (which in any case is read only). Mounts are overlay mounts. To support read-only overlay mounts, vendor a non-release version of Buildah. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Support max_size logoptionsDaniel J Walsh2020-10-05
| | | | | | | | Docker supports log-opt max_size and so does conmon (ALthough poorly). Adding support for this allows users to at least make sure their containers logs do not become a DOS vector. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add support for slirp network for podsAshley Cui2020-09-25
| | | | | | flag --network=slirp4netns[options] for root and rootless pods Signed-off-by: Ashley Cui <acui@redhat.com>
* Fix podman pod create --infra-command and --infra-imageDaniel J Walsh2020-09-16
| | | | | | | | Currently infr-command and --infra-image commands are ignored from the user. This PR instruments them and adds tests for each combination. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Merge pull request #7600 from rhatdan/codespellOpenShift Merge Robot2020-09-11
|\ | | | | Fix up errors found by codespell
| * Fix up errors found by codespellDaniel J Walsh2020-09-11
| | | | | | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* | Merge pull request #7403 from QiWang19/runtime-flagOpenShift Merge Robot2020-09-11
|\ \ | |/ |/| Add global options --runtime-flags
| * Add global options --runtime-flagsQi Wang2020-09-04
| | | | | | | | | | | | Add global options --runtime-flags for setting options to container runtime. Signed-off-by: Qi Wang <qiwan@redhat.com>
* | libpod: read mappings when joining a container usernsGiuseppe Scrivano2020-09-10
|/ | | | | | | | | when joining an existing container user namespace, read the existing mappings so the storage can be created with the correct ownership. Closes: https://github.com/containers/podman/issues/7547 Signed-off-by: Giuseppe Scrivano <giuseppe@scrivano.org>
* Ensure pod infra containers have an exit commandMatthew Heon2020-08-13
| | | | | | | | | | | | | | | | | | | | | | Most Libpod containers are made via `pkg/specgen/generate` which includes code to generate an appropriate exit command which will handle unmounting the container's storage, cleaning up the container's network, etc. There is one notable exception: pod infra containers, which are made entirely within Libpod and do not touch pkg/specgen. As such, no cleanup process, network never cleaned up, bad things can happen. There is good news, though - it's not that difficult to add this, and it's done in this PR. Generally speaking, we don't allow passing options directly to the infra container at create time, but we do (optionally) proxy a pre-approved set of options into it when we create it. Add ExitCommand to these options, and set it at time of pod creation using the same code we use to generate exit commands for normal containers. Fixes #7103 Signed-off-by: Matthew Heon <mheon@redhat.com>
* Ensure WORKDIR from images is createdMatthew Heon2020-08-03
| | | | | | | | | | | | | | A recent crun change stopped the creation of the container's working directory if it does not exist. This is arguably correct for user-specified directories, to protect against typos; it is definitely not correct for image WORKDIR, where the image author definitely intended for the directory to be used. This makes Podman create the working directory and chown it to container root, if it does not already exist, and only if it was specified by an image, not the user. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Switch all references to github.com/containers/libpod -> podmanDaniel J Walsh2020-07-28
| | | | Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add --umask flag for create, runAshley Cui2020-07-21
| | | | | | | | --umask sets the umask inside the container Defaults to 0022 Co-authored-by: Daniel J Walsh <dwalsh@redhat.com> Signed-off-by: Ashley Cui <acui@redhat.com>
* Add support for overlay volume mounts in podman.Qi Wang2020-07-20
| | | | | | | | Add support -v for overlay volume mounts in podman. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Signed-off-by: Qi Wang <qiwan@redhat.com>
* libpod: pass down network optionsGiuseppe Scrivano2020-07-16
| | | | | | do not pass network specific options through the network namespace. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Fix container and pod create commands for remote createMatthew Heon2020-07-10
| | | | | | | | | | | | | | | | | | | | | | | In `podman inspect` output for containers and pods, we include the command that was used to create the container. This is also used by `podman generate systemd --new` to generate unit files. With remote podman, the generated create commands were incorrect since we sourced directly from os.Args on the server side, which was guaranteed to be `podman system service` (or some variant thereof). The solution is to pass the command along in the Specgen or PodSpecgen, where we can source it from the client's os.Args. This will still be VERY iffy for mixed local/remote use (doing a `podman --remote run ...` on a remote client then a `podman generate systemd --new` on the server on the same container will not work, because the `--remote` flag will slip in) but at the very least the output of `podman inspect` will be correct. We can look into properly handling `--remote` (parsing it out would be a little iffy) in a future PR. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add username to /etc/passwd inside of container if --userns keep-idDaniel J Walsh2020-07-07
| | | | | | | | | | If I enter a continer with --userns keep-id, my UID will be present inside of the container, but most likely my user will not be defined. This patch will take information about the user and stick it into the container. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Implement --sdnotify cmdline option to control sd-notify behaviorJoseph Gooch2020-07-06
| | | | | | | | | | | | | | | | | | | --sdnotify container|conmon|ignore With "conmon", we send the MAINPID, and clear the NOTIFY_SOCKET so the OCI runtime doesn't pass it into the container. We also advertise "ready" when the OCI runtime finishes to advertise the service as ready. With "container", we send the MAINPID, and leave the NOTIFY_SOCKET so the OCI runtime passes it into the container for initialization, and let the container advertise further metadata. This is the default, which is closest to the behavior podman has done in the past. The "ignore" option removes NOTIFY_SOCKET from the environment, so neither podman nor any child processes will talk to systemd. This removes the need for hardcoded CID and PID files in the command line, and the PIDFile directive, as the pid is advertised directly through sd-notify. Signed-off-by: Joseph Gooch <mrwizard@dok.org>
* Merge pull request #6836 from ashley-cui/tzlibpodOpenShift Merge Robot2020-07-06
|\ | | | | Add --tz flag to create, run
| * Add --tz flag to create, runAshley Cui2020-07-02
| | | | | | | | | | | | | | --tz flag sets timezone inside container Can be set to IANA timezone as well as `local` to match host machine Signed-off-by: Ashley Cui <acui@redhat.com>
* | move go module to v2Valentin Rothberg2020-07-06
|/ | | | | | | | | | | | | | | With the advent of Podman 2.0.0 we crossed the magical barrier of go modules. While we were able to continue importing all packages inside of the project, the project could not be vendored anymore from the outside. Move the go module to new major version and change all imports to `github.com/containers/libpod/v2`. The renaming of the imports was done via `gomove` [1]. [1] https://github.com/KSubedi/gomove Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Merge pull request #6747 from giuseppe/fix-user-volumesOpenShift Merge Robot2020-06-30
|\ | | | | container: move volume chown after spec generation
| * container: move volume chown after spec generationGiuseppe Scrivano2020-06-29
| | | | | | | | | | | | | | | | | | move the chown for newly created volumes after the spec generation so the correct UID/GID are known. Closes: https://github.com/containers/libpod/issues/5698 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* | podman: add new cgroup mode splitGiuseppe Scrivano2020-06-25
|/ | | | | | | | | | | | | | | | | | | When running under systemd there is no need to create yet another cgroup for the container. With conmon-delegated the current cgroup will be split in two sub cgroups: - supervisor - container The supervisor cgroup will hold conmon and the podman process, while the container cgroup is used by the OCI runtime (using the cgroupfs backend). Closes: https://github.com/containers/libpod/issues/6400 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Add --preservefds to podman runQi Wang2020-06-19
| | | | | | Add --preservefds to podman run. close https://github.com/containers/libpod/issues/6458 Signed-off-by: Qi Wang <qiwan@redhat.com>
* Merge pull request #6560 from mheon/fix_exec_logdriverOpenShift Merge Robot2020-06-17
|\ | | | | Do not share container log driver for exec
| * Do not share container log driver for execMatthew Heon2020-06-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the container uses journald logging, we don't want to automatically use the same driver for its exec sessions. If we do we will pollute the journal (particularly in the case of healthchecks) with large amounts of undesired logs. Instead, force exec sessions logs to file for now; we can add a log-driver flag later (we'll probably want to add a `podman logs` command that reads exec session logs at the same time). As part of this, add support for the new 'none' logs driver in Conmon. It will be the default log driver for exec sessions, and can be optionally selected for containers. Great thanks to Joe Gooch (mrwizard@dok.org) for adding support to Conmon for a null log driver, and wiring it in here. Fixes #6555 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* | Add support for the unless-stopped restart policyMatthew Heon2020-06-17
|/ | | | | | | | | | | | | | | | | | We initially believed that implementing this required support for restarting containers after reboot, but this is not the case. The unless-stopped restart policy acts identically to the always restart policy except in cases related to reboot (which we do not support yet), but it does not require that support for us to implement it. Changes themselves are quite simple, we need a new restart policy constant, we need to remove existing checks that block creation of containers when unless-stopped was used, and we need to update the manpages. Fixes #6508 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* pod create: add `--infra-conmon-pidfile`Valentin Rothberg2020-06-11
| | | | | | | | | | | Add an `--infra-conmon-pidfile` flag to `podman-pod-create` to write the infra container's conmon process ID to a specified path. Several container sub-commands already support `--conmon-pidfile` which is especially helpful to allow for systemd to access and track the conmon processes. This allows for easily tracking the conmon process of a pod's infra container. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* pod config: add a `CreateCommand` fieldValentin Rothberg2020-06-11
| | | | | | | | | | | | | | Add a `CreateCommand` field to the pod config which includes the entire `os.Args` at pod-creation. Similar to the already existing field in a container config, we need this information to properly generate generic systemd unit files for pods. It's a prerequisite to support the `--new` flag for pods. Also add the `CreateCommand` to the pod-inspect data, which can come in handy for debugging, general inspection and certainly for the tests that are added along with the other changes. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* compat handlers: add X-Registry-Auth header supportValentin Rothberg2020-05-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Support the `X-Registry-Auth` http-request header. * The content of the header is a base64 encoded JSON payload which can either be a single auth config or a map of auth configs (user+pw or token) with the corresponding registries being the keys. Vanilla Docker, projectatomic Docker and the bindings are transparantly supported. * Add a hidden `--registries-conf` flag. Buildah exposes the same flag, mostly for testing purposes. * Do all credential parsing in the client (i.e., `cmd/podman`) pass the username and password in the backend instead of unparsed credentials. * Add a `pkg/auth` which handles most of the heavy lifting. * Go through the authentication-handling code of most commands, bindings and endpoints. Migrate them to the new code and fix issues as seen. A final evaluation and more tests is still required *after* this change. * The manifest-push endpoint is missing certain parameters and should use the ABI function instead. Adding auth-support isn't really possible without these parts working. * The container commands and endpoints (i.e., create and run) have not been changed yet. The APIs don't yet account for the authfile. * Add authentication tests to `pkg/bindings`. Fixes: #6384 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Remove github.com/libpod/libpod from cmd/pkg/podmanDaniel J Walsh2020-05-21
| | | | | | | By moving a couple of variables from libpod/libpod to libpod/libpod/define I am able shrink the podman-remote-* executables by another megabyte. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Fix bug where pods would unintentionally share cgroupnsMatthew Heon2020-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This one was a massive pain to track down. The original symptom was an error message from rootless Podman trying to make a container in a pod. I unfortunately did not look at the error message closely enough to realize that the namespace in question was the cgroup namespace (the reproducer pod was explicitly set to only share the network namespace), else this would have been quite a bit shorter. I spent considerable effort trying to track down differences between the inspect output of the two containers, and when that failed I was forced to resort to diffing the OCI specs. That finally proved fruitful, and I was able to determine what should have been obvious all along: the container was joining the cgroup namespace of the infra container when it really ought not to have. From there, I discovered a variable collision in pod config. The UsePodCgroup variable means "create a parent cgroup for the pod and join containers in the pod to it". Unfortunately, it is very similar to UsePodUTS, UsePodNet, etc, which mean "the pod shares this namespace", so an accessor was accidentally added for it that indicated the pod shared the cgroup namespace when it really did not. Once I realized that, it was a quick fix - add a bool to the pod's configuration to indicate whether the cgroup ns was shared (distinct from UsePodCgroup) and use that for the accessor. Also included are fixes for `podman inspect` and `podman pod inspect` that fix them to actually display the state of the cgroup namespace (for container inspect) and what namespaces are shared (for pod inspect). Either of those would have made tracking this down considerably quicker. Fixes #6149 Signed-off-by: Matthew Heon <mheon@redhat.com>
* enable volume integration testsBrent Baude2020-04-27
| | | | | | | | enabled integration tests for volumes. there are two exceptions that still need work because of something not yet implemented. also, add code to deal with the fact that containers conf appears to set a local volume driver where it used to be simply blank. Signed-off-by: Brent Baude <bbaude@redhat.com>
* podman v2 remove bloat v2Brent Baude2020-04-16
| | | | | | rid ourseleves of libpod references in v2 client Signed-off-by: Brent Baude <bbaude@redhat.com>
* pkg/spec.InitFSMounts: optimizeKir Kolyshkin2020-04-02
| | | | | | | | | | Instead of getting mount options from /proc/self/mountinfo, which is very costly to read/parse (and can even be unreliable), let's use statfs(2) to figure out the flags we need. [v2: move getting default options to pkg/util, make it linux-specific] Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
* Add support for containers.confDaniel J Walsh2020-03-27
| | | | | | | vendor in c/common config pkg for containers.conf Signed-off-by: Qi Wang qiwan@redhat.com Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Add bindings for Container Exec Create + InspectMatthew Heon2020-03-26
| | | | | | | Also adds some basic tests for these two. More tests are needed but will have to wait for state to be finished. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* auto updatesValentin Rothberg2020-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support to auto-update containers running in systemd units as generated with `podman generate systemd --new`. `podman auto-update` looks up containers with a specified "io.containers.autoupdate" label (i.e., the auto-update policy). If the label is present and set to "image", Podman reaches out to the corresponding registry to check if the image has been updated. We consider an image to be updated if the digest in the local storage is different than the one of the remote image. If an image must be updated, Podman pulls it down and restarts the container. Note that the restarting sequence relies on systemd. At container-creation time, Podman looks up the "PODMAN_SYSTEMD_UNIT" environment variables and stores it verbatim in the container's label. This variable is now set by all systemd units generated by `podman-generate-systemd` and is set to `%n` (i.e., the name of systemd unit starting the container). This data is then being used in the auto-update sequence to instruct systemd (via DBUS) to restart the unit and hence to restart the container. Note that this implementation of auto-updates relies on systemd and requires a fully-qualified image reference to be used to create the container. This enforcement is necessary to know which image to actually check and pull. If we used an image ID, we would not know which image to check/pull anymore. Fixes: #3575 Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Add validate() for containersMatthew Heon2020-03-02
| | | | | | | | | | | | | | | | | | | Until now, we've been validating every part of container configuration through the With... functions that set the options. This if fine when we are just validating the options to an individual function, but things get complicated once we need to validate conflicts between different options. We don't know the order in which things were passed, so we need the validation on both of the potential options that can conflict, resulting in significant code duplication. To solve this, add a validate() function for containers, and use this to check whether everything is in a good state. We can probably move more into this function (there are other parts of container creation that also do validation of a sort) but this is a good start to simplifying our options. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Remove ImageVolumes from databaseMatthew Heon2020-02-21
| | | | | | | | | | | | | | Before Libpod supported named volumes, we approximated image volumes by bind-mounting in per-container temporary directories. This was handled by Libpod, and had a corresponding database entry to enable/disable it. However, when we enabled named volumes, we completely rewrote the old implementation; none of the old bind mount implementation still exists, save one flag in the database. With nothing remaining to use it, it has no further purpose. Signed-off-by: Matthew Heon <mheon@redhat.com>
* Add network options to podman pod createMatthew Heon2020-02-19
| | | | | | | | | | | | | | | | | Enables most of the network-related functionality from `podman run` in `podman pod create`. Custom CNI networks can be specified, host networking is supported, DNS options can be configured. Also enables host networking in `podman play kube`. Fixes #2808 Fixes #3837 Fixes #4432 Fixes #4718 Fixes #4770 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add ability for pods to use the host networkMatthew Heon2020-02-17
| | | | Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Add backend code for pod network optionsMatthew Heon2020-02-04
| | | | | | | | | | This adds network-related options to the pod in the database. We are going to add the CLI frontend in further patches. In short, this should greatly improve the ability of pods to configure networking, once the CLI parsing is added. Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* Deprecate & remove IsCtrSpecific in favor of IsAnonMatthew Heon2020-01-29
| | | | | | | | | | | | | | | | | | | In Podman 1.6.3, we added support for anonymous volumes - fixing our old, broken support for named volumes that were created with containers. Unfortunately, this reused the database field we used for the old implementation, and toggled volume removal on for `podman run --rm` - so now, we were removing *named* volumes created with older versions of Podman. We can't modify these old volumes in the DB, so the next-safest thing to do is swap to a new field to indicate volumes should be removed. Problem: Volumes created with 1.6.3 and up until this lands, even anonymous volumes, will not be removed. However, this is safer than removing too many volumes, as we were doing before. Fixes #5009 Signed-off-by: Matthew Heon <matthew.heon@pm.me>
* podman: add new option --cgroups=no-conmonGiuseppe Scrivano2020-01-16
| | | | | | | | it allows to disable cgroups creation only for the conmon process. A new cgroup is created for the container payload. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* make lint: enable gocriticValentin Rothberg2020-01-13
| | | | | | | `gocritic` is a powerful linter that helps in preventing certain kinds of errors as well as enforcing a coding style. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
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