The logic here makes little sense, basically the /tmp and /var/tmp are
always set noexec, while /run is not. I don't see a reason to set any
of the three noexec by default.
Fixes: https://github.com/containers/podman/issues/19886
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
allow the image to specify an empty list of capabilities, currently
podman chokes when the io.containers.capabilities specified in an
image does not contain at least one capability.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
when running rootless, if the specified oom_score_adj for the
container process is lower than the current value, clamp it to the
current value and print a warning.
Closes: https://github.com/containers/podman/issues/19829
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Added a test that checks that gvproxy properly starts and stops when running podman machine, and that containers properly forward ports to the host when running podman using machine.
Signed-off-by: Ashley Cui <acui@redhat.com>
Small fixes for bugs in the hyperv code that were made obvious when
manually preparing to run pkg/machine/e2e with windows and hyperv.
Also includes vendoring a new libhvee and solves bug where json config
was not being removed.
[NO NEW TESTS NEEDED]
Signed-off-by: Brent Baude <bbaude@redhat.com>
Use the `newer` pull policy only for the "latest" tag and default to
using `missing` otherwise. This speeds up `kube play` as it'll skip
reaching out to the registry and also fixes other side-effects described
in #19801.
Fixes: #19801
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
in gvisor-vsock-tap upstream, there is a binary called 'vm' which is
used for routing traffic from a tap over something like vsock. In
Fedora, the binary is named 'gvforwarder'.
[NO NEW TESTS NEEDED]
Signed-off-by: Brent Baude <bbaude@redhat.com>
the remote username was being set too "late" for hyperv and the username
for ssh connections was blank.
[NO NEW TESTS NEEDED]
Signed-off-by: Brent Baude <bbaude@redhat.com>
... by updating for a c/common API change.
[NO NEW TESTS NEEDED]: Only moves unchanged code,
should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
In `pkg/bindings/containers/ResizeExecTTY`, `sessionID` is the actual required
parameter, instead of `nameOrId`.
[NO NEW TESTS NEEDED]
Signed-off-by: Yiliang Yang <yangyiliang@gmail.com>
pkg/api/handlers is used for type definitions by pkg/bindings,
i.e. podman-remote; a libimage dependency means that podman-remote
would also include libimage.
Instead, move the ImageDataToImageInspect function close to the
only user (and make it private).
[NO NEW TESTS NEEDED]: Only moves unchanged code (apart from a required
warning fix), should not change behavior.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
getImageFromSpec has just make exactly the same Inspect call.
[NO NEW TESTS NEEDED]: This adds no new functionality, and
it's hard to test that a duplicate call didn't happen without
(intrusive and hard-to-maintain) mocks.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
Motivation
===========
This feature aims to make --uidmap and --gidmap easier to use, especially in rootless podman setups.
(I will focus here on the --gidmap option, although the same applies for --uidmap.)
In rootless podman, the user namespace mapping happens in two steps, through an intermediate mapping.
See https://docs.podman.io/en/latest/markdown/podman-run.1.html#uidmap-container-uid-from-uid-amount
for further detail, here is a summary:
First the user GID is mapped to 0 (root), and all subordinate GIDs (defined at /etc/subgid, and
usually >100000) are mapped starting at 1.
One way to customize the mapping is through the `--gidmap` option, that maps that intermediate mapping
to the final mapping that will be seen by the container.
As an example, let's say we have as main GID the group 1000, and we also belong to the additional GID 2000,
that we want to make accessible inside the container.
We first ask the sysadmin to subordinate the group to us, by adding "$user:2000:1" to /etc/subgid.
Then we need to use --gidmap to specify that we want to map GID 2000 into some GID inside the container.
And here is the first trouble:
Since the --gidmap option operates on the intermediate mapping, we first need to figure out where has
podman placed our GID 2000 in that intermediate mapping using:
podman unshare cat /proc/self/gid_map
Then, we may see that GID 2000 was mapped to intermediate GID 5. So our --gidmap option should include:
--gidmap 20000:5:1
This intermediate mapping may change in the future if further groups are subordinated to us (or we stop
having its subordination), so we are forced to verify the mapping with
`podman unshare cat /proc/self/gid_map` every time, and parse it if we want to script it.
**The first usability improvement** we agreed on #18333 is to be able to use:
--gidmap 20000:@2000:1
so podman does this lookup in the parent user namespace for us.
But this is only part of the problem. We must specify a **full** gidmap and not only what we want:
--gidmap 0:0:5 --gidmap 5:6:15000 --gidmap 20000:5:1
This is becoming complicated. We had to break the gidmap at 5, because the intermediate 5 had to
be mapped to another value (20000), and then we had to keep mapping all other subordinate ids... up to
close to the maximum number of subordinate ids that we have (or some reasonable value). This is hard
to explain to someone who does not understand how the mappings work internally.
To simplify this, **the second usability improvement** is to be able to use:
--gidmap "+20000:@2000:1"
where the plus flag (`+`) states that the given mapping should extend any previous/default mapping,
overriding any previous conflicting assignment.
Podman will set that mapping and fill the rest of mapped gids with all other subordinated gids, leading
to the same (or an equivalent) full gidmap that we were specifying before.
One final usability improvement related to this is the following:
By default, when podman gets a --gidmap argument but not a --uidmap argument, it copies the mapping.
This is convenient in many scenarios, since usually subordinated uids and gids are assigned in chunks
simultaneously, and the subordinated IDs in /etc/subuid and /etc/subgid for a given user match.
For scenarios with additional subordinated GIDs, this map copying is annoying, since it forces the user
to provide a --uidmap, to prevent the copy from being made. This means, that when the user wants:
--gidmap 0:0:5 --gidmap 5:6:15000 --gidmap 20000:5:1
The user has to include a uidmap as well:
--gidmap 0:0:5 --gidmap 5:6:15000 --gidmap 20000:5:1 --uidmap 0:0:65000
making everything even harder to understand without proper context.
For this reason, besides the "+" flag, we introduce the "u" and "g" flags. Those flags applied to a
mapping tell podman that the mapping should only apply to users or groups, and ignored otherwise.
Therefore we can use:
--gidmap "+g20000:@2000:1"
So the mapping only applies to groups and is ignored for uidmaps. If no "u" nor "g" flag is assigned
podman assumes the mapping applies to both users and groups as before, so we preserve backwards compatibility.
Co-authored-by: Tom Sweeney <tsweeney@redhat.com>
Signed-off-by: Sergio Oller <sergioller@gmail.com>
Make sure that `kube down` and `kube play --replace` do not error out
when an object does not exist (or has already been removed). Such kind
of teardown should not be treated as an ordinary `rm` but as an
`rm --ignore`. It's purpose it to make sure that all objects in a YAML
are removed; even if they existed only partially.
Fixes: #19711
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Value of `--force-compression` should be already `true` is
`--compression-format` is selected otherwise let users decide.
Signed-off-by: Aditya R <arajan@redhat.com>
As promised in #19596, this pr deduplicates and refactors image
acquisition. All virt providers that use FCOS as its default now use
the same code.
[NO NEW TESTS NEEDED]
Signed-off-by: Brent Baude <bbaude@redhat.com>
Registers a rootless and rootful socket underneath /mnt/wsl/podman-sockets/[machine name]/
This allows podman remote clients on other Linux distributions to access podman.
This also registers the podman root socket under the wheel group, to allow for rootful
linking against /var/run/docker.sock, a use case expected by some clients and APIs.
While this is not recommended practice on a Linux host, a WSL guest is user-isolated
and already enables escalation trivially.
[NO NEW TESTS NEEDED]
Signed-off-by: Jason T. Greene <jason.greene@redhat.com>
Currently containers created via DOCKER API without specifying
StopTimeout are defaulting to 0 seconds. This change should
default them to setting in containers.conf normally 10 seconds.
Fixes: https://github.com/containers/podman/issues/19139
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Add io.podman.annotations.infra.name annotation to kube play so
users can set the name of the infra container created.
When a pod is created with --infra-name set, the generated
kube yaml will have an infraName annotation set that will
be used when playing the generated yaml with podman.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Do not close a notifyproxy more than once. Also polish the backend a
bit to reflect ealier changes from commit 4fa307f.
Fixes: #19715
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Unset the NOTIFY_SOCKET environment variable after sending the MAIN_PID
and READY message. This avoids any unintentional side-effects of other
code paths using the socket assuming they'd run in a non-server
short-lived Podman process.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
The attach API used to always return the Content-Type
`vnd.docker.raw-stream`, however docker api v1.42 added the
`vnd.docker.multiplexed-stream` type when no tty was used.
Follow suit and return the same header for docker api v1.42 and libpod
v4.7.0. This technically allows clients to make a small optimization as
they no longer need to inspect the container to see if they get a raw or
multiplexed stream.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Move SupportedVersion() and IsLibpodRequest() to separate package to
avoid import cycle when using it in libpod.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Document the attach, exec and logs output stream format. We use the same
format as docker.
Fixes#19280
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
