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operator.go
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operator.go
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// Copyright 2022-2024 The Inspektor Gadget 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 containercollection
import (
"github.com/inspektor-gadget/inspektor-gadget/pkg/operators"
)
func (cc *ContainerCollection) EnrichEventByMntNs(event operators.ContainerInfoFromMountNSID) {
event.SetNode(cc.nodeName)
mountNsId := event.GetMountNSID()
container := cc.LookupContainerByMntns(mountNsId)
if container == nil && cc.cachedContainers != nil {
container = lookupContainerByMntns(cc.cachedContainers, mountNsId)
}
if container != nil {
event.SetContainerMetadata(container)
}
}
func (cc *ContainerCollection) EnrichEventByNetNs(event operators.ContainerInfoFromNetNSID) {
event.SetNode(cc.nodeName)
netNsId := event.GetNetNSID()
containers := cc.LookupContainersByNetns(netNsId)
if len(containers) == 0 {
containers = lookupContainersByNetns(cc.cachedContainers, netNsId)
}
if len(containers) == 0 || containers[0].HostNetwork {
return
}
if len(containers) == 1 {
event.SetContainerMetadata(containers[0])
return
}
if containers[0].K8s.PodName != "" && containers[0].K8s.Namespace != "" {
// Kubernetes containers within the same pod.
event.SetPodMetadata(containers[0])
}
// else {
// TODO: Non-Kubernetes containers sharing the same network namespace.
// What should we do here?
// }
return
}