7274e33e38
To further some ongoing work in containerd to make as much code as possible able to be used on any platform (to handle runtimes that can virtualize/emulate a variety of different OSes), this change makes stats able to be handled on any of the supported stat types (just linux and windows). To accomplish this, we use the platform the sandbox returns from its `Platform` rpc to decide what format the containers in a given sandbox are returning metrics in, then we can typecast/marshal accordingly. Signed-off-by: Danny Canter <danny@dcantah.dev>
54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package sbserver
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import (
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"context"
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"fmt"
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"github.com/containerd/containerd/api/services/tasks/v1"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
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)
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// ContainerStats returns stats of the container. If the container does not
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// exist, the call returns an error.
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func (c *criService) ContainerStats(ctx context.Context, in *runtime.ContainerStatsRequest) (*runtime.ContainerStatsResponse, error) {
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cntr, err := c.containerStore.Get(in.GetContainerId())
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if err != nil {
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return nil, fmt.Errorf("failed to find container: %w", err)
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}
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request := &tasks.MetricsRequest{Filters: []string{"id==" + cntr.ID}}
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resp, err := c.client.TaskService().Metrics(ctx, request)
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if err != nil {
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return nil, fmt.Errorf("failed to fetch metrics for task: %w", err)
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}
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if len(resp.Metrics) != 1 {
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return nil, fmt.Errorf("unexpected metrics response: %+v", resp.Metrics)
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}
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handler, err := c.getMetricsHandler(ctx, cntr.SandboxID)
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if err != nil {
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return nil, err
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}
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cs, err := handler(cntr.Metadata, resp.Metrics[0])
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if err != nil {
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return nil, fmt.Errorf("failed to decode container metrics: %w", err)
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}
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return &runtime.ContainerStatsResponse{Stats: cs}, nil
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}
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