83 lines
2.8 KiB
Go
83 lines
2.8 KiB
Go
/*
|
|
Copyright The containerd Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package server
|
|
|
|
import (
|
|
"context"
|
|
"sort"
|
|
|
|
runcoptions "github.com/containerd/containerd/v2/core/runtime/v2/runc/options"
|
|
criconfig "github.com/containerd/containerd/v2/pkg/cri/config"
|
|
"github.com/containerd/containerd/v2/pkg/systemd"
|
|
"github.com/containerd/log"
|
|
runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
|
|
)
|
|
|
|
func (c *criService) getLinuxRuntimeConfig(ctx context.Context) *runtime.LinuxRuntimeConfiguration {
|
|
return &runtime.LinuxRuntimeConfiguration{CgroupDriver: c.getCgroupDriver(ctx)}
|
|
}
|
|
|
|
func (c *criService) getCgroupDriver(ctx context.Context) runtime.CgroupDriver {
|
|
// Go through the runtime handlers in a predictable order, starting from the
|
|
// default handler, others sorted in alphabetical order
|
|
handlerNames := make([]string, 0, len(c.config.ContainerdConfig.Runtimes))
|
|
for n := range c.config.ContainerdConfig.Runtimes {
|
|
handlerNames = append(handlerNames, n)
|
|
}
|
|
sort.Slice(handlerNames, func(i, j int) bool {
|
|
if handlerNames[i] == c.config.ContainerdConfig.DefaultRuntimeName {
|
|
return true
|
|
}
|
|
if handlerNames[j] == c.config.ContainerdConfig.DefaultRuntimeName {
|
|
return false
|
|
}
|
|
return handlerNames[i] < handlerNames[j]
|
|
})
|
|
|
|
for _, handler := range handlerNames {
|
|
opts, err := criconfig.GenerateRuntimeOptions(c.config.ContainerdConfig.Runtimes[handler])
|
|
if err != nil {
|
|
log.G(ctx).Debugf("failed to parse runtime handler options for %q", handler)
|
|
continue
|
|
}
|
|
if d, ok := getCgroupDriverFromRuntimeHandlerOpts(opts); ok {
|
|
return d
|
|
}
|
|
log.G(ctx).Debugf("runtime handler %q does not provide cgroup driver information", handler)
|
|
}
|
|
|
|
// If no runtime handlers have a setting, detect if systemd is running
|
|
d := runtime.CgroupDriver_CGROUPFS
|
|
if systemd.IsRunningSystemd() {
|
|
d = runtime.CgroupDriver_SYSTEMD
|
|
}
|
|
log.G(ctx).Debugf("no runtime handler provided cgroup driver setting, using auto-detected %s", runtime.CgroupDriver_name[int32(d)])
|
|
return d
|
|
}
|
|
|
|
func getCgroupDriverFromRuntimeHandlerOpts(opts interface{}) (runtime.CgroupDriver, bool) {
|
|
switch v := opts.(type) {
|
|
case *runcoptions.Options:
|
|
systemdCgroup := v.SystemdCgroup
|
|
if systemdCgroup {
|
|
return runtime.CgroupDriver_SYSTEMD, true
|
|
}
|
|
return runtime.CgroupDriver_CGROUPFS, true
|
|
}
|
|
return runtime.CgroupDriver_SYSTEMD, false
|
|
}
|