28 lines
500 B
Go
28 lines
500 B
Go
package discovery
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import (
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"strings"
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"sync"
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"github.com/google/uuid"
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)
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var (
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instanceID string
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instanceOnce sync.Once
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instanceIDGenerator = func() string {
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return uuid.NewString()
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}
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)
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// InstanceID returns a unique, process-stable identifier for the running service instance.
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func InstanceID() string {
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instanceOnce.Do(func() {
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instanceID = strings.TrimSpace(instanceIDGenerator())
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if instanceID == "" {
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instanceID = uuid.NewString()
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}
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})
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return instanceID
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}
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