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Merge pull request #64831 from brendandburns/todo
Automatic merge from submit-queue (batch tested with PRs 58690, 64773, 64880, 64915, 64831). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Address an old 'TODO' and lazy initialize firewallD signal handler. @kubernetes/sig-network-misc
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commit
152b0c12da
@ -137,6 +137,7 @@ type runner struct {
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dbus utildbus.Interface
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protocol Protocol
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hasCheck bool
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hasListener bool
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waitFlag []string
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restoreWaitFlag []string
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lockfilePath string
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@ -163,13 +164,11 @@ func newInternal(exec utilexec.Interface, dbus utildbus.Interface, protocol Prot
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dbus: dbus,
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protocol: protocol,
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hasCheck: getIPTablesHasCheckCommand(vstring),
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hasListener: false,
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waitFlag: getIPTablesWaitFlag(vstring),
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restoreWaitFlag: getIPTablesRestoreWaitFlag(exec, protocol),
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lockfilePath: lockfilePath,
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}
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// TODO this needs to be moved to a separate Start() or Run() function so that New() has zero side
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// effects.
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runner.connectToFirewallD()
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return runner
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}
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@ -200,6 +199,7 @@ func (runner *runner) connectToFirewallD() {
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glog.V(1).Infof("Could not connect to D-Bus system bus: %s", err)
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return
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}
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runner.hasListener = true
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rule := fmt.Sprintf("type='signal',sender='%s',path='%s',interface='%s',member='Reloaded'", firewalldName, firewalldPath, firewalldInterface)
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bus.BusObject().Call("org.freedesktop.DBus.AddMatch", 0, rule)
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@ -669,6 +669,15 @@ func (runner *runner) dbusSignalHandler(bus utildbus.Connection) {
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// AddReloadFunc is part of Interface
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func (runner *runner) AddReloadFunc(reloadFunc func()) {
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runner.mu.Lock()
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defer runner.mu.Unlock()
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// We only need to listen to firewalld if there are Reload functions, so lazy
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// initialize the listener.
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if !runner.hasListener {
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runner.connectToFirewallD()
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}
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runner.reloadFuncs = append(runner.reloadFuncs, reloadFunc)
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}
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