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>
in cases where the log file exceeds the available memory of a system, we had a bug that triggered an oom because the entire logfile was being read when the tail parameter was given. this reads in chunks and is more or less memory safe.
fixes: #5131
Signed-off-by: Brent Baude <bbaude@redhat.com>
Looks like a bit of a misunderstanding from early on.
Docker implements --filter=since=IMAGE. Podman implements 'after'
instead of 'since'. Add an equivalent case statement to handle
both, keeping 'after' because we have no way of knowing if it
is used in the field.
Update documentation ... and fix what looks like a complete
misinterpretation of what the code actually does: the man page
claimed that these were time fields, but I don't see any
possible incantation in which a time value works or could
work. Updated docs to reflect IMAGE usage. Also changed
nonworking '==' to single '='.
Added tests. [UPDATE: skip with broken podman-remote]
Fixes: #5040
Signed-off-by: Ed Santiago <santiago@redhat.com>
when using usernamespace, dnsname respondes from cni were not making it into the containers /etc/resolv.conf because of a timing issue. this corrects that behavior.
Fixes: #5256
Signed-off-by: Brent Baude <bbaude@redhat.com>
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#2808Fixes#3837Fixes#4432Fixes#4718Fixes#4770
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Instead of manually merging the configs, use the built-in features of
TOMP to merge/extend the fields of a data type when encoding a file.
This erases the need for the merge code in libpod/config and also
addresses issues when merging booleans.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
when using -d and port mapping, make sure the correct fd is injected
into conmon.
Move the pipe creation earlier as the fd must be known at the time we
create the container through conmon.
Closes: https://github.com/containers/libpod/issues/5167
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Add pkg/capabibilities to deal with capabilities. The code has been
copied from Docker (and attributed with the copyright) but changed
significantly to only do what we really need. The code has also been
simplified and will perform better due to removed redundancy.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
If we attempt to label a volume and the file system
does not support labeling, then just warn. SELinux
may or may not work, on the volume.
There is no way to setup a private label on a newly
created volume without using the container mountlabel.
If we don't have a mount label at the time of creation of
the volume, the only option we have is to create a shared
label.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
When Docker performs a copy up, it first verifies that the volume
being copied into is empty; thus, for volumes that have been
modified elsewhere (e.g. manually copying into then), the copy up
will not be performed at all. Duplicate this behavior in Podman
by checking if the volume is empty before copying.
Furthermore, move setting copyup to false further up. This will
prevent a potential race where copy up could happen more than
once if Podman was killed after some files had been copied but
before the DB was updated.
This resolves CVE-2020-1726.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
... so that _all_ Image objects are created in a single place
that is easy to update.
Should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
Instead of the function updating image.InputName (the only reason for it
to need an image), have it return the updated value separately.
This will allow simplifying the constructors of Image further.
Should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
All ways to create an Image{} have a non-nil .image field, and it
is never set to nil, so this is dead code.
Should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
All code creating an Image by looking up a name now uses
Runtime.NewFromLocal.
Should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
This is not _trivially_ safe because newImage.getLocalImage()
modifies newImage.ImageName, but we overwrite that value anyway.
So, this should not change behavior, and it will make future refactoring
easier to verify.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
If there are no running containers - for example, if the pod was
just created - the cgroup in question may not exist (under
certain circumstances that we're not 100% sure about). However,
regardless, we don't need to set a PID limit, as nothing will be
making cleanup processes (no running conmon processes), so not
changing the cgroup is safe regardless.
Fixes#5072
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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>
The current Libpod pkg/spec has become a victim of the better
part of three years of development that tied it extremely closely
to the current Podman CLI. Defaults are spread across multiple
places, there is no easy way to produce a CreateConfig that will
actually produce a valid container, and the logic for generating
configs has sprawled across at least three packages.
This is an initial pass at a package that generates OCI specs
that will supersede large parts of the current pkg/spec. The
CreateConfig will still exist, but will effectively turn into a
parsed CLI. This will be compiled down into the new SpecGenerator
struct, which will generate the OCI spec and Libpod create
options.
The preferred integration point for plugging into Podman's Go API
to create containers will be the new CreateConfig, as it's less
tied to Podman's command line. CRI-O, for example, will likely
tie in here.
Signed-off-by: Matthew Heon <mheon@redhat.com>
This makes restart a bit slower for root containers, but it does
make it more consistent with `podman stop` and `podman start` on
a container. Importantly, `podman restart` will now recreate
firewall rules if they were somehow purged.
Fixes#5051
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
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>
Get the layer's size whether it relates to the first history entry or
not. This fixes issues where the first entry would always be shown
to be of size 0.
Fixes: #4916
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
When a container specification has a pull policy, we should honor it when recreating the pods/containers from yaml. furthermore, ini kube, if a tag is :latest, then the always pull policy is automatically instituted.
Fixes: #4880
Signed-off-by: Brent Baude <bbaude@redhat.com>
when a docker image has a defined healthcheck, it should be displayed with inspect. this is only valid for docker images as oci images are not aware of healthchecks.
Fixes: #4799
Signed-off-by: Brent Baude <bbaude@redhat.com>
