Currently Podman prevents SELinux container separation,
when running within a container. This PR adds a new
--security-opt label=nested
When setting this option, Podman unmasks and mountsi
/sys/fs/selinux into the containers making /sys/fs/selinux
fully exposed. Secondly Podman sets the attribute
run.oci.mount_context_type=rootcontext
This attribute tells crun to mount volumes with rootcontext=MOUNTLABEL
as opposed to context=MOUNTLABEL.
With these two settings Podman inside the container is allowed to set
its own SELinux labels on tmpfs file systems mounted into its parents
container, while still being confined by SELinux. Thus you can have
nested SELinux labeling inside of a container.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* add tests
* add documentation for --shm-size-systemd
* add support for both pod and standalone run
Signed-off-by: danishprakash <danish.prakash@suse.com>
Add test to verify that updates without a pids-limit specified no longer
overwrite the previous value.
Also fixes erroneous warning generated by remote clients:
"Resource limits are not supported and ignored on cgroups V1 rootless
systems"
Signed-off-by: Jason T. Greene <jason.greene@redhat.com>
If you are running temporary containers within podman play kube
we should really be running these in read-only mode. For automotive
they plan on running all of their containers in read-only temporal
mode. Adding this option guarantees that the container image is not
being modified during the running of the container.
The containers can only write to tmpfs mounted directories.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
...make sure podman rejects being called with incompatible options
Replaces: https://github.com/containers/podman/pull/16813
Which is stuck in CI and Ed is on break.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This allows use to use STDOUT directly without having to call open
again, also this makes the export API endpoint much more performant
since it no longer needs to copy to a temp file.
I noticed that there was no export API test so I added one.
And lastly opening /dev/stdout will not work on windows.
Fixes#16870
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
In the recent past, I met the frequent need to wait for a container to
exist that, at the same time, may get removed (e.g., system tests in [1]).
Add an `--ignore` option to podman-wait which will ignore errors when a
specified container is missing and mark its exit code as -1. Also
remove ID fields from the WaitReport. It is actually not used by
callers and removing it makes the code simpler and faster.
Once merged, we can go over the tests and simplify them.
[1] github.com/containers/podman/pull/16852
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Also fix a number of duplicate words. Yet disable the new `dupword`
linter as it displays too many false positives.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Fix a bug for special-casing "." where Podman has mistakenly been
looking for a "." suffix instead of interpreting it as a path.
Add regression tests for the host-to-container, container-to-host and
container-to-container use cases. Have separate tests for each to
verify that previous Podman versions fail each case.
Fixes: #16421
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Conceptually equivalent to networking by means of slirp4netns(1),
with a few practical differences:
- pasta(1) forks to background once networking is configured in the
namespace and quits on its own once the namespace is deleted:
file descriptor synchronisation and PID tracking are not needed
- port forwarding is configured via command line options at start-up,
instead of an API socket: this is taken care of right away as we're
about to start pasta
- there's no need for further selection of port forwarding modes:
pasta behaves similarly to containers-rootlessport for local binds
(splice() instead of read()/write() pairs, without L2-L4
translation), and keeps the original source address for non-local
connections like slirp4netns does
- IPv6 is not an experimental feature, and enabled by default. IPv6
port forwarding is supported
- by default, addresses and routes are copied from the host, that is,
container users will see the same IP address and routes as if they
were in the init namespace context. The interface name is also
sourced from the host upstream interface with the first default
route in the routing table. This is also configurable as documented
- sandboxing and seccomp(2) policies cannot be disabled
- only rootless mode is supported.
See https://passt.top for more details about pasta.
Also add a link to the maintained build of pasta(1) manual as valid
in the man page cross-reference checks: that's where the man page
for the latest build actually is -- it's not on Github and it doesn't
match any existing pattern, so add it explicitly.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Remove the container/pod ID file along with the container/pod. It's
primarily used in the context of systemd and are not useful nor needed
once a container/pod has ceased to exist.
Fixes: #16387
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
The rest of the code has been using golang.org/x/* for the IsTerminal()
API for a long time, not github.com/mattn/go-isatty. It seems better to
stick to packages from the golang.org domain, whenever possible, and one
less dependency is always a good thing.
The modules were not cleaned up with 'make vendor' because 'go mod tidy'
was running into:
go: error loading go 1.16 module graph:
github.com/containers/image/v5@v5.23.1-0.20221015133641-1921a1993c67
requires
github.com/honeycombio/beeline-go@v1.9.0 requires
github.com/mattn/go-sqlite3@v2.0.3+incompatible: reading
github.com/mattn/go-sqlite3/go.mod at revision v2.0.3: unknown
revision v2.0.3
If reproducibility with go 1.16 is not needed:
go mod tidy -compat=1.17
Since go.mod already requires Go 1.17, the following commands were
manually run:
$ go mod tidy -compat=1.17
$ go mod vendor
$ go mod verify
Further modifications to go.sum were done manually based on the
complaints from postbuild.sh run by the CI.
[NO NEW TESTS NEEDED] as it's not a functional change.
Fixes: 85db895012 ("logging: new mode -l passthrough")
Signed-off-by: Debarshi Ray <rishi@fedoraproject.org>
Truncate the container and pod ID files instead of throwing an error.
The main motivation is to prevent redundant work when starting systemd
units. Throwing an error when the file already exists is not preventing
races or file corruptions, so let's leave that to the user which in
almost all cases are generated (and tested) systemd units.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
Use `Default()` instead of re-loading containers.conf.
Also rework how the containers.conf objects are handled for parsing the
CLI. Previously, we were conflating "loading the defaults" with
"storing values from the CLI" with "libpod may further change fields"
which ultimately led to various bugs and test failues.
To address the issue, separate the defaults from the values from the CLI
and properly name the fields to make the semantics less ambiguous.
[NO NEW TESTS NEEDED] as it's not a functional change.
Fixes: containers/common/issues/1200
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
This patch extends the podman run command with support for checkpoint
images. When `podman run` is invoked with an image that contains
a checkpoint, it would restore the container from that checkpoint.
Example:
podman run -d --name looper busybox /bin/sh -c \
'i=0; while true; do echo $i; i=$(expr $i + 1); sleep 1; done'
podman container checkpoint --create-image checkpoint-image-1 looper
podman run checkpoint-image-1
Signed-off-by: Radostin Stoyanov <radostin@redhat.com>
Podman allows to store a container checkpoints as an images.
This patch makes the check that is used to recognise such checkpoint
images reusable by moving it in utils. This functionality will be reused
in a subsequent patch to extend the `podman run` command with support
for checkpoint images.
Signed-off-by: Radostin Stoyanov <radostin@redhat.com>
Package `io/ioutil` was deprecated in golang 1.16, preventing podman from
building under Fedora 37. Fortunately, functionality identical
replacements are provided by the packages `io` and `os`. Replace all
usage of all `io/ioutil` symbols with appropriate substitutions
according to the golang docs.
Signed-off-by: Chris Evich <cevich@redhat.com>
Podman adds an Error: to every error message. So starting an error
message with "error" ends up being reported to the user as
Error: error ...
This patch removes the stutter.
Also ioutil.ReadFile errors report the Path, so wrapping the err message
with the path causes a stutter.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
podman update allows users to change the cgroup configuration of an existing container using the already defined resource limits flags
from podman create/run. The supported flags in crun are:
this command is also now supported in the libpod api via the /libpod/containers/<CID>/update endpoint where
the resource limits are passed inthe request body and follow the OCI resource spec format
–memory
–cpus
–cpuset-cpus
–cpuset-mems
–memory-swap
–memory-reservation
–cpu-shares
–cpu-quota
–cpu-period
–blkio-weight
–cpu-rt-period
–cpu-rt-runtime
-device-read-bps
-device-write-bps
-device-read-iops
-device-write-iops
-memory-swappiness
-blkio-weight-device
resolves#15067
Signed-off-by: Charlie Doern <cdoern@redhat.com>
Refactor the RawInput process of the `rm` and
`start` subcommands, like the other subcommands
such as `restart, stop, etc`.
[NO NEW TESTS NEEDED]
Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
--cidfile : Read container ID from the specified file and restart the container.
--filter : restart the filtered container.
Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
if an explicit mapping is specified, do not accept `--userns` since it
overriden to "private".
Closes: https://github.com/containers/podman/issues/15233
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Tying filtering logic for podman stop and start to same place in getContainersAndInputByContext() to reduce code redundancy
Signed-off-by: Karthik Elango <kelango@redhat.com>
This Patch will cause podman COMMAND rm --force bogus not fail
This is how Docker works, so Podman should follow this to allow existing
scripts to convert from Docker to Podman.
Fixes: #14612
Oprignal version of this patch came from wufan 1991849113@qq.com
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
--latest : pause/unpause the latest container.
--filter : pause/unpause the filtered container.
--cidfile : Read container ID from the specified file and pause/unpause the container.
Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
When we pause `rootless cgroups v1 container`, podman returns error from `libpod.(*Container).pause`.
Podman does not need to return error from `containers.pause` because of duplicate.
[NO NEW TESTS NEEDED]
Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
Filter flag is added for podman stop and podman --remote stop. Filtering logic is implemented in
getContainersAndInputByContext(). Start filtering can be manipulated to use this logic as well to limit redundancy.
Signed-off-by: Karthik Elango <kelango@redhat.com>
Podman wait should not be defaulting to just stopped. By default
wait API waits for stopped and exited. We should not override this on
the client side.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
add support for the --uts flag in pod create, allowing users to avoid
issues with default values in containers.conf.
uts follows the same format as other namespace flags:
--uts=private (default), --uts=host, --uts=ns:PATH
resolves#13714
Signed-off-by: Charlie Doern <cdoern@redhat.com>
Following PR adds support for running containers from a manifest list
present on localstorage. Before this PR podman only supports running
containers from valid images but not from manifest list.
So `podman run -it --platform <some> <manifest-list> command` should
become functional now and users should be able to resolve images on the
bases of provided `--platform` string.
Example
```
podman manifest create test
podman build --platform linux/amd64,linux/arm64 --manifest test .
podman run --rm --platform linux/arm64/v8 test uname -a
```
Closes: https://github.com/containers/podman/issues/14773
Signed-off-by: Aditya R <arajan@redhat.com>
We now use the golang error wrapping format specifier `%w` instead of
the deprecated github.com/pkg/errors package.
Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
* Replace "setup", "lookup", "cleanup", "backup" with
"set up", "look up", "clean up", "back up"
when used as verbs. Replace also variations of those.
* Improve language in a few places.
Signed-off-by: Erik Sjölund <erik.sjolund@gmail.com>
expose the --shm-size flag to podman pod create and add proper handling and inheritance
for the option.
resolves#14609
Signed-off-by: Charlie Doern <cdoern@redhat.com>
