mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-10-01 01:36:09 -04:00
30 lines
968 B
Go
30 lines
968 B
Go
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package client
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import (
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"fmt"
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"regexp"
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)
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var instanceGroupIDRegex = regexp.MustCompile(`^projects/([^/]+)/zones/([^/]+)/instanceGroupManagers/([^/]+)$`)
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// splitInstanceGroupID splits an instance group ID into core components.
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func splitInstanceGroupID(instanceGroupID string) (project, zone, instanceGroup string, err error) {
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matches := instanceGroupIDRegex.FindStringSubmatch(instanceGroupID)
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if len(matches) != 4 {
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return "", "", "", fmt.Errorf("error splitting instanceGroupID: %v", instanceGroupID)
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}
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return matches[1], matches[2], matches[3], nil
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}
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// generateInstanceName generates a random instance name.
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func generateInstanceName(baseInstanceName string, random prng) (string, error) {
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letters := []byte("abcdefghijklmnopqrstuvwxyz0123456789")
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const uidLen = 4
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uid := make([]byte, 0, uidLen)
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for i := 0; i < uidLen; i++ {
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n := random.Intn(len(letters))
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uid = append(uid, letters[n])
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}
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return baseInstanceName + "-" + string(uid), nil
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}
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