forked from AliyunContainerService/log-pilot
/
blackwhitelist.go
58 lines (55 loc) · 1.29 KB
/
blackwhitelist.go
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package discovery
import (
"fmt"
"regexp"
"strings"
)
type BlackWhiteList struct {
bListNS string
wListNS string
bListPod string
wListPod string
}
func (b *BlackWhiteList) IsResponsible(namespace string, pod string) (bool, error) {
bListPodRegex, err := regexp.Compile(b.bListPod)
if err != nil {
return false, err
}
wListSVCRegex, err := regexp.Compile(b.wListPod)
if err != nil {
return false, err
}
podFilterKey := fmt.Sprintf("%v/%v", namespace, pod)
if len(bListPodRegex.String()) > 0 {
if match := bListPodRegex.MatchString(podFilterKey); match {
return false, nil
}
}
if len(wListSVCRegex.String()) > 0 {
match := wListSVCRegex.MatchString(podFilterKey)
return match || b.namespaceFilter(namespace), nil
}
return b.namespaceFilter(namespace), err
}
func (b *BlackWhiteList) namespaceFilter(namespace string) bool {
bListNS := listToSet(parseList(b.bListNS))
wListNS := listToSet(parseList(b.wListNS))
if _, inBList := bListNS[namespace]; inBList {
return false
}
if len(b.wListNS) > 0 {
_, inWList := wListNS[namespace]
return inWList
}
return true
}
func parseList(raw string) []string {
if raw == "" {
return nil
}
splitted := strings.Split(raw, ",")
for i := range splitted {
splitted[i] = strings.Trim(splitted[i], " \n\t")
}
return splitted
}