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embed: error when different values are specified in "--log-output"

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"--log-output default,a.log" should error out when etcd
runs as a systemd unit. We expect 'default' to be overridden
explicitly.

Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
This commit is contained in:
Gyuho Lee 2018-04-25 17:07:27 -07:00
parent 755b508a8e
commit b6578c8f4d
1 changed files with 8 additions and 0 deletions
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8
embed/config.go
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@ -581,6 +581,14 @@ func (cfg *Config) setupLogging() error {
return err
}
} else {
if len(cfg.LogOutputs) > 1 {
for _, v := range cfg.LogOutputs {
if v != DefaultLogOutput {
return fmt.Errorf("running as a systemd unit but other '--log-output' values (%q) are configured with 'default'; override 'default' value with something else", cfg.LogOutputs)
}
}
}
// use stderr as fallback
syncer := getZapWriteSyncer()
lvl := zap.NewAtomicLevelAt(zap.InfoLevel)