mirror of
https://github.com/containerd/containerd.git
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Ayato Tokubi
47c7085d22
Add server-streaming variants of CRI list RPCs (StreamContainers, StreamPodSandboxes, StreamContainerStats, StreamPodSandboxStats, StreamPodSandboxMetrics, StreamImages) that send results in batches of 5000 items. Signed-off-by: Ayato Tokubi <atokubi@redhat.com>
45 lines
1.5 KiB
Go
45 lines
1.5 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 server
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import (
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"fmt"
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"google.golang.org/grpc"
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runtime "k8s.io/cri-api/pkg/apis/runtime/v1"
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criutil "github.com/containerd/containerd/v2/internal/cri/util"
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)
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// StreamContainerStats streams stats of all containers matching the filter.
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func (c *criService) StreamContainerStats(r *runtime.StreamContainerStatsRequest, s grpc.ServerStreamingServer[runtime.StreamContainerStatsResponse]) error {
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ctx := s.Context()
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listReq := &runtime.ListContainerStatsRequest{
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Filter: r.GetFilter(),
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}
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css, err := c.listContainerStats(ctx, listReq)
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if err != nil {
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return fmt.Errorf("failed to fetch containers and stats: %w", err)
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}
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resp := c.toCRIContainerStats(css)
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return criutil.SendInBatches(ctx, resp.Stats, criutil.DefaultStreamBatchSize, func(batch []*runtime.ContainerStats) error {
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return s.Send(&runtime.StreamContainerStatsResponse{ContainerStats: batch})
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})
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}
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