Commit Graph

23 Commits

Author SHA1 Message Date
Paul Holzinger c1b6effac5
add !remote tag to pkg/specgen/generate
These files should never be included on the remote client. There only
there to finalize the spec on the server side.

This makes sure it will not get reimported by accident and bloat the
remote client again.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
2023-09-14 11:21:00 +02:00
Toshiki Sonoda c416e45766 Ignore the resource limits on cgroups V1 rootless systems
This is a regression for #18052.
When podman ignores the resource limits, s.ResourceLimits needs to be
nil.

[NO NEW TESTS NEEDED]

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
2023-08-23 13:58:13 +09:00
Toshiki Sonoda 4f5f89cf88 Do not display the resource limits warning message
If resource limits is not set, do not display the following warning message:
`Resource limits are not supported and ignored on cgroups V1 rootless systems`

Ref: #17582

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
2023-04-11 19:30:59 +09:00
Chris Evich d968f3fe09
Replace deprecated ioutil
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>
2022-09-20 15:34:27 -04:00
Toshiki Sonoda c7411af9e2 Ignore cpu realtime options on cgroups V2 systems
`--cpu-rt-period` and `--cpu-rt-runtime` options are only
supported on cgroups V1 rootful systems.

Therefore, podman prints an warning message and ignores these
options when we use cgroups V2 systems.

Related to: #15666

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
2022-09-09 17:33:43 +09:00
Toshiki Sonoda 64339d47c1 Warning messages are printed and ignored if we use an unsupported option
When an unsupported limit on cgroups V1 rootless systems
is requested, podman prints an warning message and
ignores the option/flag.

```
  Target options/flags:
    --cpu-period, --cpu-quota, --cpu-rt-period, --cpu-rt-runtime,
    --cpus, --cpu-shares, --cpuset-cpus, --cpuset-mems, --memory,
    --memory-reservation, --memory-swap, --memory-swappiness,
    --blkio-weight, --device-read-bps, --device-write-bps,
    --device-read-iops, --device-write-iops, --blkio-weight-device
```

Related to https://github.com/containers/podman/discussions/10152

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>
2022-08-23 11:54:31 +09:00
Sascha Grunert a46f798831
pkg: switch to golang native error wrapping
We now use the golang error wrapping format specifier `%w` instead of
the deprecated github.com/pkg/errors package.

[NO NEW TESTS NEEDED]

Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
2022-07-08 08:54:47 +02:00
Jason T. Greene 94e82121bf Support running podman under a root v2 cgroup
Signed-off-by: Jason T. Greene <jason.greene@redhat.com>
2022-05-21 09:28:52 -05:00
Paul Holzinger 51fbf3da9e
enable gocritic linter
The linter ensures a common code style.
- use switch/case instead of else if
- use if instead of switch/case for single case statement
- add space between comment and text
- detect the use of defer with os.Exit()
- use short form var += "..." instead of var = var + "..."
- detect problems with append()
```
newSlice := append(orgSlice, val)
```
  This could lead to nasty bugs because the orgSlice will be changed in
  place if it has enough capacity too hold the new elements. Thus we
  newSlice might not be a copy.

Of course most of the changes are just cosmetic and do not cause any
logic errors but I think it is a good idea to enforce a common style.
This should help maintainability.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
2022-04-26 18:12:22 +02:00
Valentin Rothberg bd09b7aa79 bump go module to version 4
Automated for .go files via gomove [1]:
`gomove github.com/containers/podman/v3 github.com/containers/podman/v4`

Remaining files via vgrep [2]:
`vgrep github.com/containers/podman/v3`

[1] https://github.com/KSubedi/gomove
[2] https://github.com/vrothberg/vgrep

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2022-01-18 12:47:07 +01:00
Daniel J Walsh a5e49d9668
Warn on use of --kernel-memory
It has been deprecated and is no longer supported.  Fully remove it and
only print a warning if a user uses it.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2011695

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2021-12-22 06:20:21 -05:00
Daniel J Walsh 2130d18539
Update vendor or containers/common moving pkg/cgroups there
[NO NEW TESTS NEEDED] This is just moving pkg/cgroups out so
existing tests should be fine.

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2021-12-07 06:17:11 -05:00
Urvashi Mohnani c25cc7230f Allow a value of -1 to set unlimited pids limit
Users can set --pids-limit to -1 now to set unlimited
pids limit for a container - this matches the convention.

[NO TESTS NEEDED]

Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
2021-09-29 16:22:55 -04:00
Valentin Rothberg 5dded6fae7 bump go module to v3
We missed bumping the go module, so let's do it now :)

* Automated go code with github.com/sirkon/go-imports-rename
* Manually via `vgrep podman/v2` the rest

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-02-22 09:03:51 +01:00
Paul Holzinger 8452b768ec Fix problems reported by staticcheck
`staticcheck` is a golang code analysis tool. https://staticcheck.io/

This commit fixes a lot of problems found in our code. Common problems are:
- unnecessary use of fmt.Sprintf
- duplicated imports with different names
- unnecessary check that a key exists before a delete call

There are still a lot of reported problems in the test files but I have
not looked at those.

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
2021-01-12 16:11:09 +01:00
OpenShift Merge Robot 2aaa036f56
Merge pull request #8197 from giuseppe/check-cgroupv2-swap-enabled
specgen, cgroup2: check whether memory swap is enabled
2020-10-31 11:40:07 +01:00
Giuseppe Scrivano 4860223ce5
specgen, cgroup2: check whether memory swap is enabled
add a similar check to what we do on cgroup v1.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2020-10-30 19:35:14 +01:00
Giuseppe Scrivano 22702b9d60
specgen: split cgroup v1 and cgroup v2 code
refactor function into two separate ones.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2020-10-30 14:46:43 +01:00
Giuseppe Scrivano 433fea303e
specgen: fix error message
drop spurious comma.

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2020-10-30 14:30:33 +01:00
Giuseppe Scrivano d856210ea8
podman: add option --cgroup-conf
it allows to manually tweak the configuration for cgroup v2.

we will expose some of the options in future as single
options (e.g. the new memory knobs), but for now add the more generic
--cgroup-conf mechanism for maximum control on the cgroup
configuration.

OCI specs change: https://github.com/opencontainers/runtime-spec/pull/1040

Requires: https://github.com/containers/crun/pull/459

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
2020-08-21 19:06:05 +02:00
Daniel J Walsh a5e37ad280
Switch all references to github.com/containers/libpod -> podman
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
2020-07-28 08:23:45 -04:00
Valentin Rothberg 8489dc4345 move go module to v2
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>
2020-07-06 15:50:12 +02:00
Matthew Heon c51c593ff6 Re-add resource limit warnings to Specgen
These were part of Podman v1.9, but were lost in the transition
to using Specgen to create containers. Most resource limits are
checked via the sysinfo package to ensure they are safe to use
(the cgroup is mounted, kernel support is present, etc) and
removed if not safe. Further, bounds checks are performed to
ensure that values are valid.

Ensure these warnings are printed client-side when they occur.
This part is a little bit gross, as it happens in pkg/infra and
not cmd/podman, which is largely down to how we implemented
`podman run` - all the work is done in pkg/infra and it returns
only once the container has exited, and we need warnings to print
*before* the container runs. The solution here, while inelegant,
avoid the need to extensively refactor our handling of run.

Should fix blkio-limit warnings that were identified by the FCOS
test suite.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>
2020-06-16 17:32:01 -04:00