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https://github.com/Control-D-Inc/ctrld.git
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29bf329f6a
The systemd-networkd-wait-online is only required if systemd-networkd is managing any interfaces. Otherwise, it will hang and block ctrld from starting. See: https://github.com/systemd/systemd/issues/23304
63 lines
1.7 KiB
Go
63 lines
1.7 KiB
Go
package cli
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import (
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"bufio"
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"bytes"
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"io"
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"os"
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"os/exec"
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"strings"
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"github.com/kardianos/service"
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"github.com/Control-D-Inc/ctrld/internal/dns"
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)
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func init() {
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if r, err := dns.NewOSConfigurator(func(format string, args ...any) {}, "lo"); err == nil {
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useSystemdResolved = r.Mode() == "systemd-resolved"
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}
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// Disable quic-go's ECN support by default, see https://github.com/quic-go/quic-go/issues/3911
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if os.Getenv("QUIC_GO_DISABLE_ECN") == "" {
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os.Setenv("QUIC_GO_DISABLE_ECN", "true")
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}
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}
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func setDependencies(svc *service.Config) {
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svc.Dependencies = []string{
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"Wants=network-online.target",
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"After=network-online.target",
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"Wants=NetworkManager-wait-online.service",
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"After=NetworkManager-wait-online.service",
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"Wants=nss-lookup.target",
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"After=nss-lookup.target",
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}
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if out, _ := exec.Command("networkctl", "--no-pager").CombinedOutput(); len(out) > 0 {
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if wantsSystemDNetworkdWaitOnline(bytes.NewReader(out)) {
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svc.Dependencies = append(svc.Dependencies, "Wants=systemd-networkd-wait-online.service")
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}
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}
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}
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func setWorkingDirectory(svc *service.Config, dir string) {
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svc.WorkingDirectory = dir
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}
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// wantsSystemDNetworkdWaitOnline reports whether "systemd-networkd-wait-online" service
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// is required to be added to ctrld dependencies services.
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// The input reader r is the output of "networkctl --no-pager" command.
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func wantsSystemDNetworkdWaitOnline(r io.Reader) bool {
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scanner := bufio.NewScanner(r)
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// Skip header
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scanner.Scan()
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configured := false
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for scanner.Scan() {
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fields := strings.Fields(scanner.Text())
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if len(fields) > 0 && fields[len(fields)-1] == "configured" {
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configured = true
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break
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}
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}
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return configured
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}
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