forked from containerd/cri
/
status.go
68 lines (58 loc) · 2.21 KB
/
status.go
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/*
Copyright 2017 The Kubernetes 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 (
"fmt"
"golang.org/x/net/context"
healthapi "google.golang.org/grpc/health/grpc_health_v1"
"k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
)
const (
// runtimeNotReadyReason is the reason reported when runtime is not ready.
runtimeNotReadyReason = "ContainerdNotReady"
// networkNotReadyReason is the reason reported when network is not ready.
networkNotReadyReason = "NetworkPluginNotReady"
)
// Status returns the status of the runtime.
func (c *criContainerdService) Status(ctx context.Context, r *runtime.StatusRequest) (*runtime.StatusResponse, error) {
runtimeCondition := &runtime.RuntimeCondition{
Type: runtime.RuntimeReady,
Status: true,
}
// Use containerd grpc server healthcheck service to check its readiness.
resp, err := c.healthService.Check(ctx, &healthapi.HealthCheckRequest{})
if err != nil || resp.Status != healthapi.HealthCheckResponse_SERVING {
runtimeCondition.Status = false
runtimeCondition.Reason = runtimeNotReadyReason
if err != nil {
runtimeCondition.Message = fmt.Sprintf("Containerd healthcheck returns error: %v", err)
} else {
runtimeCondition.Message = "Containerd grpc server is not serving"
}
}
networkCondition := &runtime.RuntimeCondition{
Type: runtime.NetworkReady,
Status: true,
}
if err := c.netPlugin.Status(); err != nil {
networkCondition.Status = false
networkCondition.Reason = networkNotReadyReason
networkCondition.Message = fmt.Sprintf("Network plugin returns error: %v", err)
}
return &runtime.StatusResponse{
Status: &runtime.RuntimeStatus{Conditions: []*runtime.RuntimeCondition{
runtimeCondition,
networkCondition,
}},
}, nil
}