/
extractor.go
60 lines (42 loc) · 1.65 KB
/
extractor.go
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package cnimonitor
import (
"fmt"
"github.com/aporeto-inc/trireme/constants"
"github.com/aporeto-inc/trireme/monitor/rpcmonitor"
"github.com/aporeto-inc/trireme/policy"
)
// A CNIMetadataExtractor is a function used to extract a *policy.PURuntime from an event generated by CNI
type CNIMetadataExtractor func(event *rpcmonitor.EventInfo) (*policy.PURuntime, error)
// KubernetesCNIMetadataExtractor is a systemd based metadata extractor
func KubernetesCNIMetadataExtractor(event *rpcmonitor.EventInfo) (*policy.PURuntime, error) {
if event.Name == "" {
return nil, fmt.Errorf("EventInfo PU Name is empty")
}
if event.PUID == "" {
return nil, fmt.Errorf("EventInfo PUID is empty")
}
runtimeTags := policy.NewTagStore()
for k, v := range event.Tags {
runtimeTags.AppendKeyValue("@usr:"+k, v)
}
runtimeIps := policy.ExtendedMap{"bridge": "0.0.0.0/0"}
return policy.NewPURuntime(event.Name, 1, "", runtimeTags, runtimeIps, constants.LinuxProcessPU, nil), nil
}
// DockerCNIMetadataExtractor is a systemd based metadata extractor
func DockerCNIMetadataExtractor(event *rpcmonitor.EventInfo) (*policy.PURuntime, error) {
if event.Name == "" {
return nil, fmt.Errorf("EventInfo PU Name is empty")
}
if event.PUID == "" {
return nil, fmt.Errorf("EventInfo PUID is empty")
}
if event.NS == "" {
return nil, fmt.Errorf("NamespacePath is required when using CNI")
}
runtimeTags := policy.NewTagStore()
for k, v := range event.Tags {
runtimeTags.AppendKeyValue("@usr:"+k, v)
}
runtimeIps := policy.ExtendedMap{"bridge": "0.0.0.0/0"}
return policy.NewPURuntime(event.Name, 0, event.NS, runtimeTags, runtimeIps, constants.ContainerPU, nil), nil
}