104 lines
2.9 KiB
Go
104 lines
2.9 KiB
Go
/*
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Copyright 2017 The Kubernetes 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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"github.com/golang/glog"
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"golang.org/x/net/context"
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"k8s.io/kubernetes/pkg/kubelet/apis/cri/v1alpha1/runtime"
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"github.com/kubernetes-incubator/cri-containerd/pkg/metadata"
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)
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// ListContainers lists all containers matching the filter.
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func (c *criContainerdService) ListContainers(ctx context.Context, r *runtime.ListContainersRequest) (retRes *runtime.ListContainersResponse, retErr error) {
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glog.V(4).Infof("ListContainers with filter %+v", r.GetFilter())
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defer func() {
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if retErr == nil {
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glog.V(4).Infof("ListContainers returns containers %+v", retRes.GetContainers())
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}
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}()
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// List all container metadata from store.
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metas, err := c.containerStore.List()
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if err != nil {
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return nil, fmt.Errorf("failed to list metadata from container store: %v", err)
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}
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var containers []*runtime.Container
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for _, meta := range metas {
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containers = append(containers, toCRIContainer(meta))
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}
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containers = c.filterCRIContainers(containers, r.GetFilter())
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return &runtime.ListContainersResponse{Containers: containers}, nil
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}
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// toCRIContainer converts container metadata into CRI container.
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func toCRIContainer(meta *metadata.ContainerMetadata) *runtime.Container {
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return &runtime.Container{
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Id: meta.ID,
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PodSandboxId: meta.SandboxID,
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Metadata: meta.Config.GetMetadata(),
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Image: meta.Config.GetImage(),
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ImageRef: meta.ImageRef,
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State: meta.State(),
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CreatedAt: meta.CreatedAt,
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Labels: meta.Config.GetLabels(),
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Annotations: meta.Config.GetAnnotations(),
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}
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}
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// filterCRIContainers filters CRIContainers.
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func (c *criContainerdService) filterCRIContainers(containers []*runtime.Container, filter *runtime.ContainerFilter) []*runtime.Container {
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if filter == nil {
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return containers
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}
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filtered := []*runtime.Container{}
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for _, cntr := range containers {
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if filter.GetId() != "" && filter.GetId() != cntr.Id {
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continue
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}
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if filter.GetPodSandboxId() != "" && filter.GetPodSandboxId() != cntr.PodSandboxId {
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continue
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}
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if filter.GetState() != nil && filter.GetState().GetState() != cntr.State {
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continue
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}
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if filter.GetLabelSelector() != nil {
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match := true
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for k, v := range filter.GetLabelSelector() {
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got, ok := cntr.Labels[k]
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if !ok || got != v {
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match = false
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break
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}
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}
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if !match {
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continue
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}
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}
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filtered = append(filtered, cntr)
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}
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return filtered
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}
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