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cmd/tailscaled: move cleanup to an implicit action during startup

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This removes a potentially increased boot delay for certain boot
topologies where they block on ExecStartPre that may have socket
activation dependencies on other system services (such as
systemd-resolved and NetworkManager).

Also rename cleanup to clean up in affected/immediately nearby places
per code review commentary.

Fixes #11599

Signed-off-by: James Tucker <james@tailscale.com>
This commit is contained in:
James Tucker
2024-04-02 19:52:19 -07:00
committed by James Tucker
parent 8d83adde07
commit db760d0bac
11 changed files with 31 additions and 28 deletions
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4
net/dns/manager.go
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@@ -449,10 +449,10 @@ func (m *Manager) FlushCaches() error {
return flushCaches()
}
// Cleanup restores the system DNS configuration to its original state
// CleanUp restores the system DNS configuration to its original state
// in case the Tailscale daemon terminated without closing the router.
// No other state needs to be instantiated before this runs.
func Cleanup(logf logger.Logf, interfaceName string) {
func CleanUp(logf logger.Logf, interfaceName string) {
oscfg, err := NewOSConfigurator(logf, interfaceName)
if err != nil {
logf("creating dns cleanup: %v", err)