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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
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Add "podman volume" command
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Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
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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>
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Add ability to prune containers and images
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Allow user to prune unused/unnamed images, the layer images from building,
via podman rmi --prune.
Allow user to prune stopped/exiuted containers via podman rm --prune.
This should resolve #1910
Signed-off-by: baude <bbaude@redhat.com>
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Add --sync option to podman rm
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Per discussion with Dan, it would be better to automatically
handle potential runtime errors by automatically syncing if they
occur. Retaining the flag for `ps` makes sense, as we won't even
be calling the OCI runtime and as such won't see errors if the
state desyncs, but rm can be handled automatically.
The automatic desync handling code will take some additional work
so we'll land this as-is (sync on ps is enough to solve most
desync issues).
Signed-off-by: Matthew Heon <mheon@redhat.com>
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Previously not needed as it only worked inside of Batch(), but
now that it can be called anywhere we need to add mutual
exclusion on its config changes.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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The previous commit added support for --sync to podman rm to
ensure state inconsistencies would not prevent containers from
being removed.
Add the flag to podman ps as well, so that all containers can be
forcibly synced and all state inconsistencies resolved.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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With the changes made recently to ensure Podman does not hit the
OCI runtime as often to sync state, we can find ourselves in a
situation where the runtime's state does not match ours.
Add a --sync flag to podman rm to ensure we can still remove
containers when this happens.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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tutorial: add ostree dependency
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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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Vendor in latest containers/storage
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This should improve performance on vfs images on top of xfs/reflink drives.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Invert tlsverify default in API
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Fixes #1929
Signed-off-by: Jhon Honce <jhonce@redhat.com>
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Adding more varlink endpoints
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* runlabel
* checkpoint
* restore
* container|image exists
* mount
* unmount
Signed-off-by: baude <bbaude@redhat.com>
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set .54 version for f28 due to memory error
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Signed-off-by: baude <bbaude@redhat.com>
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libpod/container_internal_linux: Allow gids that aren't in the group file
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Callers that only care about the IDs should try to convert the
identifier to an integer before calling the Get* functions, so they
can save the cost of hitting the filesystem and maybe or maybe not
finding the other fields (User.Name, etc.). But callers that *want*
the other fields but only actually need the ID can, with this commit,
just call the Get* function and ignore ErrNo*Entries responses:
user, err := lookup.GetUser(mount, userIDorName)
if err != nil && err != ErrNoPasswdEntries {
return err
}
Previously, they'd have to perform their own integer-conversion
attempt in Get* error handling, with logic like:
user, err := lookup.GetUser(mount, userIDorName)
if err == ErrNoPasswdEntries {
uuid, err := strconv.ParseUint(userIDorName, 10, 32)
if err == nil {
user.Uid = int(uuid)
}
} else if err != nil {
return err
}
Signed-off-by: W. Trevor King <wking@tremily.us>
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When an image config sets config.User [1] to a numeric group (like
1000:1000), but those values do not exist in the container's
/etc/group, libpod is currently breaking:
$ podman run --rm registry.svc.ci.openshift.org/ci-op-zvml7cd6/pipeline:installer --help
error creating temporary passwd file for container 228f6e9943d6f18b93c19644e9b619ec4d459a3e0eb31680e064eeedf6473678: unable to get gid 1000 from group file: no matching entries in group file
However, the OCI spec requires converters to copy numeric uid and gid
to the runtime config verbatim [2].
With this commit, I'm frontloading the "is groupspec an integer?"
check and only bothering with lookup.GetGroup when it was not.
I've also removed a few .Mounted checks, which are originally from
00d38cb3 (podman create/run need to load information from the image,
2017-12-18, #110). We don't need a mounted container filesystem to
translate integers. And when the lookup code needs to fall back to
the mounted root to translate names, it can handle erroring out
internally (and looking it over, it seems to do that already).
[1]: https://github.com/opencontainers/image-spec/blame/v1.0.1/config.md#L118-L123
[2]: https://github.com/opencontainers/image-spec/blame/v1.0.1/conversion.md#L70
Signed-off-by: W. Trevor King <wking@tremily.us>
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Use paths written in DB instead if they differ from our defaults
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Instead of storing the runtime's file lock dir in the BoltDB
state, refer to the runtime inside the Bolt state instead, and
use the path stored in the runtime.
This is necessary since we moved DB initialization very far up in
runtime init, before the locks dir is properly initialized (and
it must happen before the locks dir can be created, as we use the
DB to retrieve the proper path for the locks dir now).
Signed-off-by: Matthew Heon <mheon@redhat.com>
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We don't need this for anything more than rootless work in Libpod
now, but Buildah still uses it as it was originally written, so
leave it intact as part of our API.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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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>
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Ensure that the directory where we will create the Podman db
exists prior to creating the database - otherwise creating the DB
will fail.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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Signed-off-by: Matthew Heon <mheon@redhat.com>
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When validating fields against the DB, report more verbosely the
name of the field being validated if it fails. Specifically, add
the name used in config files, so people will actually know what
to change it errors happen.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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Signed-off-by: Matthew Heon <mheon@redhat.com>
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Ensure we don't break the unit tests by creating a locks
directory (which, prior to the last commit, would be created by
BoltDB state init).
Signed-off-by: Matthew Heon <mheon@redhat.com>
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We already create the locks directory as part of the libpod
runtime's init - no need to do it again as part of BoltDB's init.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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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>
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If the DB contains default paths, and the user has not explicitly
overridden them, use the paths in the DB over our own defaults.
The DB validates these paths, so it would error and prevent
operation if they did not match. As such, instead of erroring, we
can use the DB's paths instead of our own.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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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>
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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>
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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>
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When we create a Libpod database, we store a number of runtime
configuration fields in it. If we can retrieve those, we can use
them to configure the runtime to match the DB instead of inbuilt
defaults, helping to ensure that we don't error in cases where
our compiled-in defaults changed.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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test for rmi with children
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Signed-off-by: baude <bbaude@redhat.com>
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Don't initialize CNI when running as rootless
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We don't use CNI to configure networks for rootless containers,
so no need to set it up. It may also cause issues with inotify,
so disabling it resolves some potential problems.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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libpod/container_internal: Deprecate implicit hook directories
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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>
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test: update runc again
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the regression we noticed in runc was fixed upstream:
https://github.com/opencontainers/runc/pull/1943
so we can use again runc from master.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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