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cgroups in K8s are setup with the following hierarchy: `.../pod/container`.
The sandbox is created with the first container and consequently uses the
the pause container cgroup. This change removes the container cgroup from
the path to make the sandbox use the pod cgroup instead. Otherwise limits
set to the pause container will apply to the entire sandbox.
PiperOrigin-RevId: 374273277
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According to the OCI spec Mount.Type is an optional field and it
defaults to "bind" when any of "bind" or "rbind" is included in
Mount.Options.
Also fix the shim to remove bind/rbind from options when mount is
converted from bind to tmpfs inside the Sentry.
Fixes #2330
Fixes #3274
PiperOrigin-RevId: 371996891
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The syscall package has been deprecated in favor of golang.org/x/sys.
Note that syscall is still used in the following places:
- pkg/sentry/socket/hostinet/stack.go: some netlink related functionalities
are not yet available in golang.org/x/sys.
- syscall.Stat_t is still used in some places because os.FileInfo.Sys() still
returns it and not unix.Stat_t.
Updates #214
PiperOrigin-RevId: 360701387
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gvisor-containerd-shim is not compatible with containerd 1.1 or earlier.
Starting from containerd 1.2, shim v2 is the preferred interface.
PiperOrigin-RevId: 351485556
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These are primarily simplification and lint mistakes. However, minor
fixes are also included and tests added where appropriate.
PiperOrigin-RevId: 351425971
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PiperOrigin-RevId: 347532687
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PiperOrigin-RevId: 347047550
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PiperOrigin-RevId: 345564927
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- Add log statements in service entry points.
- Propagate `-debug` flag from shim invokation to the service
- Load options when shim process is invoked to ensure runsc commands
use the correct set of options, e.g. --debug --debug-logs=...
- Add debug options to the shim configuration directly, so it doesn't
rely on containerd configuration (and restart) to enable shim debug.
- Save shim logs to dedicated file, so it's easier to read logs. They
would be mixed with containerd logs and hard to distinguish
otherwise.
PiperOrigin-RevId: 342179868
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This was causing gvisor-containerd-shim to crash because the command
suceeded, but there was no stat present.
PiperOrigin-RevId: 340964921
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Using the newer bazel rules necessitates a transition from proto1 to
proto2. In order to resolve the incompatibility between proto2 and
gogoproto, the cri runtimeoptions proto must be vendored.
Further, some of the semantics of bazel caching changed during the
transition. It is now necessary to:
- Ensure that :gopath depends only on pure library targets, as the
propagation of go_binary build attributes (pure, static) will
affected the generated files (though content remains the same,
there are conflicts with respect to the gopath).
- Update bazel.mk to include the possibility of binaries in the
bazel-out directory, as it will now put runsc and others there.
This required some refinements to the mechanism of extracting
paths, since some the existing regex resulted in false positives.
- Change nogo rules to prevent escape generation on binary targets.
For some reason, the newer version of bazel attempted to run the
nogo analysis on the binary targets, which fails due to the fact
that objdump does not work on the final binary. This must be due
to a change in the semantics of aspects in bazel3.
PiperOrigin-RevId: 337958324
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Stolen from cl/327337408 (ascannell is OOO)
PiperOrigin-RevId: 327475423
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PiperOrigin-RevId: 321053634
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The go.mod dependency tree for the shim was somehow contradictory. After
resolving these issues (e.g. explicitly imported k8s 1.14, pulling a
specific dbus version), and adding all dependencies, the shim can now be
build as part of the regular bazel tree.
As part of this process, minor cleanup was done in all the source files:
headers were standardized (and include "The gVisor Authors" in addition
to the "The containerd Authors" if originally derived from containerd
sources), and comments were cleaned up to meet coding standards.
This change makes the containerd installation dynamic, so that multiple
versions can be tested, and drops the static installer for the VM image
itself.
This change also updates test/root/crictl_test.go and related utilities,
so that the containerd tests can be run on any version (and in cases
where it applies, they can be run on both v1 and v2 as parameterized
tests).
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* Update vendors
Signed-off-by: Lantao Liu <lantaol@google.com>
* Add containerd shim v2 support.
Signed-off-by: Lantao Liu <lantaol@google.com>
* Add test and doc for containerd-shim-runsc-v1.
Signed-off-by: Lantao Liu <lantaol@google.com>
* Address comments.
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