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Prevent loading config twice in K8S (#3999) 

When config dir is mounted from configmap, filepath.Walk() finds the same
.conf file twice as 20-acme.conf is a link to ..data/20-acme.conf for example.

This patch skips all folder names starting with '..' which is pretty
uncommon and mainly used by Kubernetes mounts.
This commit is contained in:
jvassev 2018-04-12 02:51:19 +03:00 committed by Daniel Nelson
parent 5b8401fa37
commit af7382e224
2 changed files with 10 additions and 0 deletions
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6
internal/config/config.go
View File

@ -519,7 +519,13 @@ func (c *Config) LoadDirectory(path string) error {
log.Printf("W! Telegraf is not permitted to read %s", thispath) log.Printf("W! Telegraf is not permitted to read %s", thispath)
return nil return nil
} }
if info.IsDir() { if info.IsDir() {
if strings.HasPrefix(info.Name(), "..") {
// skip Kubernetes mounts, prevening loading the same config twice
return filepath.SkipDir
}
return nil return nil
} }
name := info.Name() name := info.Name()

4
internal/config/testdata/subconfig/..4984_10_04_08_28_06.119/invalid-config.conf vendored Normal file
View File

@ -0,0 +1,4 @@
# This invalid config file should be skipped during testing
# as it is an ..data folder
[[outputs.influxdb