Volumes that are provisioned with `VolumeMode: Block` often have a
MetrucsProvider interface declared in their type. However, the
MetricsProvider should implement a GetMetrics() function. In the cases
where the storage drivers do not implement GetMetrics(), a panic can
occur.
Usual type-assertions are not sufficient in this case. All assertions
assume the interface is present. There is no straight forward way to
verify that a valid GetMetrics() function is provided.
By adding SupportsMetrics(), storage driver implementations require
careful reviewing for metrics support.
This sets cgroup config via libcontainer to make sure we apply the
correct values to the systemd slices and scopes.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
runc rc95 contains a fix for CVE-2021-30465.
runc rc94 provides fixes and improvements.
One notable change is cgroup manager's Set now accept Resources rather
than Cgroup (see https://github.com/opencontainers/runc/pull/2906).
Modify the code accordingly.
Also update runc dependencies (as hinted by hack/lint-depdendencies.sh):
github.com/cilium/ebpf v0.5.0
github.com/containerd/console v1.0.2
github.com/coreos/go-systemd/v22 v22.3.1
github.com/godbus/dbus/v5 v5.0.4
github.com/moby/sys/mountinfo v0.4.1
golang.org/x/sys v0.0.0-20210426230700-d19ff857e887
github.com/google/go-cmp v0.5.4
github.com/kr/pretty v0.2.1
github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
dbus 5.0.4 adds StoreProperty method which needs to be implemented for
the mock.
Fixes the errors like
> pkg/kubelet/nodeshutdown/systemd/inhibit_linux_test.go:88:9: cannot use f.fakeDBusObject (variable of type *fakeDBusObject) as dbus.BusObject value in return statement: missing method StoreProperty
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
suppose there are two devices dev1 and dev2, each has NUMA Nodes associated as below:
dev1: numa1
dev2: numa1, numa2
and we request a device from numa2, currently filterByAffinity() will return
[], [dev1, dev2], [] if loop of available devices produce a sequence of [dev1, dev2],
that is is not desirable as what we truely expect is an allocation of dev2 from numa2.
One notable change is cgroup manager's Set now accept Resources rather
than Cgroup (see https://github.com/opencontainers/runc/pull/2906).
Modify the code accordingly.
Also update runc dependencies (as hinted by hack/lint-depdendencies.sh):
github.com/cilium/ebpf v0.5.0
github.com/containerd/console v1.0.2
github.com/coreos/go-systemd/v22 v22.3.1
github.com/godbus/dbus/v5 v5.0.4
github.com/moby/sys/mountinfo v0.4.1
golang.org/x/sys v0.0.0-20210426230700-d19ff857e887
github.com/google/go-cmp v0.5.4
github.com/kr/pretty v0.2.1
github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
dbus 5.0.4 adds StoreProperty method which needs to be implemented for
the mock.
Fixes the errors like
> pkg/kubelet/nodeshutdown/systemd/inhibit_linux_test.go:88:9: cannot use f.fakeDBusObject (variable of type *fakeDBusObject) as dbus.BusObject value in return statement: missing method StoreProperty
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
The cpuset.Parse function missed a couple bad input cases, specifically
"1--3" and "10-6". These were silently ignored when they should instead
be flagged as invalid.
This now catches these cases and expands the unit tests for cpuset to
cover them (and other negative test cases as well).
Signed-off-by: Jim Ramsay <jramsay@redhat.com>
For the simplicity and clarity, I think we can safely delete the
`delete(serviceEnv, envVar.Name)` and the duplicate comments at
function makeEnvironmentVariables of kubelet_pods.go:774-779.
1. `delete(serviceEnv, envVar.Name)` and `if _, present := tmpEnv[k]; !present`
of line 796 are the same logic that is to merge the non-present keys
of serviceEnv into tmpEnv.
2. And the keys deleted from serviceEnv are guarantee to be in tmpEnv,
this doesn't affect mappingFunc.
3. the delete may miss some key from container.EnvFrom
