For testing and possibly other operations go might need elevated
permissions. Some parts of documentation and the BUILDING.md mention
using `sudo go` but does not explain how to achieve this. This commit
inserts instructions to the BUILDING.md as a small note. Note mentions
systemwide and local solutions.
Signed-off-by: Mete Durlu <mete.durlu@ibm.com>
I noticed the logo was not correct in dark mode and was hard to see, here is some fancy mark down to make the white logo appear in dark mode and the dark logo appear in light mode
Signed-off-by: James Gordon <james.gordon1628@gmail.com>
The .github/workflows/release/Dockerfile will use working dir as docker
build context. But the .dockerignore will ignore the .github/release/...
and cause dirty. We should remove it and verify git working tree after
build.
Fix: #6484
Signed-off-by: Wei Fu <fuweid89@gmail.com>
For some runtimes, the container is not ready for exec until the
initial container task has been started (as opposed to just having the task created).
More specifically, running containerd-stress with --exec would break
with Kata Container shim, since the sandbox is not created until a
start is issued. By starting the container's primary task before adding
exec's, we can avoid:
```
error="cannot enter container exec-container-1, with err Sandbox not running, impossible to enter the container: unknown"
```
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
With the release of hcsshim v0.9.2, this test should pass without
issues on Windows.
Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
We were not properly ignoring errors from
gorestrl.rdt.ContainerClassFromAnnotations() causing the config option
to be ineffective, in practice.
Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>
With the cgroupv2 configuration employed by Kubernetes, the pod cgroup (slice)
and container cgroup (scope) will both have the same memory limit applied. In
that situation, the kernel will consider an OOM event to be triggered by the
parent cgroup (slice), and increment 'oom' there. The child cgroup (scope) only
sees an oom_kill increment. Since we monitor child cgroups for oom events,
check the OOMKill field so that we don't miss events.
This is not visible when running containers through docker or ctr, because they
set the limits differently (only container level). An alternative would be to
not configure limits at the pod level - that way the container limit will be
hit and the OOM will be correctly generated. An interesting consequence is that
when spawning a pod with multiple containers, the oom events also work
correctly, because:
a) if one of the containers has no limit, the pod has no limit so OOM events in
another container report correctly.
b) if all of the containers have limits then the pod limit will be a sum of
container events, so a container will be able to hit its limit first.
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
When the cgroup is removed, EventChan is closed (this was pulled in by
8d69c041c5). This results in a nil error
being received. Don't log an error in that case but instead return.
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
The Linux kernel never sets the Inheritable capability flag to
anything other than empty. Non-empty values are always exclusively
set by userspace code.
[The kernel stopped defaulting this set of capability values to the
full set in 2000 after a privilege escalation with Capabilities
affecting Sendmail and others.]
Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
Commit fb0688362c implemented the Normalize()
function, but marked these fields as deprecated.
It's unclear what the motivation was for this, as the fields are part of the OCI
Image spec. On Windows, the OSVersion field specifically is important when matching
images (as kernel versions may not be compatible).
This patch updates platforms.Normalize() to preserve the OSVersion and OSFeatures
fields.
As a follow-up, we should look at defining an appropriate string-representation
for these fields (possibly as part of the OCI Spec), and update platforms.Parse()
accordingly.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Allow the following syscalls by default:
- `landlock_add_rule`
- `landlock_create_ruleset`
- `landlock_restrict_self`
See https://landlock.io/
Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Unlike the other shims, containerd-shim did not have a -v (version) flag:
./bin/containerd-shim-runc-v1 -v
./bin/containerd-shim-runc-v1:
Version: v1.6.0-rc.1
Revision: ad771115b82a70cfd8018d72ae489c707e63de16.m
Go version: go1.17.2
./bin/containerd-shim -v
flag provided but not defined: -v
Usage of ./bin/containerd-shim:
This patch adds a `-v` flag to be consistent with the other shims. The code was
slightly refactored to match the implementation in the other shims, taking the
same approach as 77d53d2d23/runtime/v2/shim/shim.go (L240-L256)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
POSIX guidelines describes; https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html#g_t_002d_002dversion
> The program’s name should be a constant string; don’t compute it from argv[0].
> The idea is to state the standard or canonical name for the program, not its
> file name.
We don't have a const for this, but let's make a start and just remove the path info.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
I noticed that path information showed up in the version output:
./bin/containerd-shim-runc-v1 -v
./bin/containerd-shim-runc-v1:
Version: v1.6.0-rc.1
Revision: ad771115b82a70cfd8018d72ae489c707e63de16.m
Go version: go1.17.2
POSIX guidelines describes; https://www.gnu.org/prep/standards/html_node/_002d_002dversion.html#g_t_002d_002dversion
> The program’s name should be a constant string; don’t compute it from argv[0].
> The idea is to state the standard or canonical name for the program, not its
> file name.
Unfortunately, this code is used by multiple binaries, so we can't fully remove
the use of os.Args[0], but let's make a start and just remove the path info.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
