42 lines
761 B
Go
42 lines
761 B
Go
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package config
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import (
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"net"
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"path/filepath"
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"strconv"
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)
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const (
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PortPrimary = 5032
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PortAlternate = 5033
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UpdatesSubdir = "updates"
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)
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// AlternateListenAddr returns the other blue-green port (5032 <-> 5033).
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func AlternateListenAddr(current string) (string, error) {
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host, portStr, err := net.SplitHostPort(current)
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if err != nil {
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return "", err
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}
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if host == "" {
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host = "0.0.0.0"
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}
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port, err := strconv.Atoi(portStr)
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if err != nil {
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return "", err
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}
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next := PortAlternate
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if port == PortAlternate {
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next = PortPrimary
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}
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return net.JoinHostPort(host, strconv.Itoa(next)), nil
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}
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func UpdatesDir() (string, error) {
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base, err := InstallDir()
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if err != nil {
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return "", err
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}
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return filepath.Join(base, UpdatesSubdir), nil
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}
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