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import hudson.slaves.OfflineCause.SimpleOfflineCause
import hudson.util.RemotingDiagnostics
import java.io.PrintWriter
import java.io.StringWriter
import java.lang.System
// returns full stack trace of a throwable 't' as a string
def getStackTrace(t) {
def sw = new StringWriter()
def pw = new PrintWriter(sw, true)
t.printStackTrace(pw)
pw.flush()
sw.flush()
return sw.toString()
}
// FIXME: why cannot we import jenkins.util.NonLocalizable ?
class OfflineMessage extends org.jvnet.localizer.Localizable {
def message
OfflineMessage() {
super(null, null, [])
def timestr = new Date().format("HH:mm dd/MM/yy z", TimeZone.getTimeZone("UTC"))
this.message = "automated reboot at end of build at " + timestr
}
String toString() {
this.message
}
String toString(java.util.Locale l) {
toString()
}
}
def computer = manager.build.getBuiltOn().toComputer()
def channel = computer.getChannel()
def cause = SimpleOfflineCause.create(new OfflineMessage())
def rebooted = 0
for (i in 1..5) {
try {
RemotingDiagnostics.executeGroovy( """
if (Functions.isWindows()) {
'shutdown /r /t 10 /c "Restarting after Jenkins build completed"'.execute()
} else {
"sudo -n /sbin/reboot".execute()
}
""", channel )
rebooted = i
break
} catch (Exception e) {
manager.addWarningBadge("could not reboot [attempt " + i + "]: " + getStackTrace(e))
// disconnecting the computer, waiting for it to reconnect and reinitializing the
// channel helps to recover from "Could not initialize class org.codehause.groovy.runtime.InvokerHelper",
// which occurs on slaves sometimes (with Jenkins 1.466) for unknown reasons.
computer.disconnect(cause).get()
sleep(30000)
channel = computer.getChannel()
def attempts = 0
while (channel == null && ++attempts < 5) {
sleep(30000)
channel = computer.getChannel()
}
}
}
if (rebooted == 0) {
manager.addShortText("reboot failed")
} else if (rebooted > 1) {
manager.addShortText("rebooted after " + rebooted + " attempts")
} else {
manager.addInfoBadge("rebooted after build")
}
if (rebooted) {
// make sure jobs cannot be scheduled until after the node reboots
computer.setTemporarilyOffline(true, cause)
}
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