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[#389686] Show crash output in console

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This commit is contained in:
Dane Everitt 2019-11-30 17:08:11 -08:00
parent 8c57583ce9
commit 11c6738264
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GPG Key ID: EEA66103B3D71F53
4 changed files with 31 additions and 5 deletions
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1
go.mod
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@ -24,6 +24,7 @@ require (
github.com/julienschmidt/httprouter v1.2.0
github.com/kr/pretty v0.1.0 // indirect
github.com/mcuadros/go-defaults v1.1.0
github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee
github.com/onsi/ginkgo v1.8.0 // indirect
github.com/onsi/gomega v1.5.0 // indirect

2
go.sum
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@ -55,6 +55,8 @@ github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/magefile/mage v1.9.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
github.com/mcuadros/go-defaults v1.1.0 h1:K0LgSNfsSUrbEHR7HgfZpOHVWYsPnYh/dKTA7pGeZ/I=
github.com/mcuadros/go-defaults v1.1.0/go.mod h1:vl9cJiNIIHISQeboDhZBUCiCOa3GkeioLe3Y95NXF6Y=
github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db h1:62I3jR2EmQ4l5rM/4FEfDWcRD+abF5XlKShorW5LRoQ=
github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db/go.mod h1:l0dey0ia/Uv7NcFFVbCLtqEBQbrT4OCwCSKTEv6enCw=
github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee h1:IquUs3fIykn10zWDIyddanhpTqBvAHMaPnFhQuyYw5U=
github.com/olebedev/emitter v0.0.0-20190110104742-e8d1457e6aee/go.mod h1:eT2/Pcsim3XBjbvldGiJBvvgiqZkAFyiOJJsDKXs/ts=
github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=

11
server/crash.go
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@ -1,6 +1,7 @@
package server
import (
"fmt"
"github.com/pkg/errors"
"github.com/pterodactyl/wings/config"
"go.uber.org/zap"
@ -33,8 +34,10 @@ func (s *Server) handleServerCrash() error {
// is no reason to do a crash detection event. If the server crash detection is
// disabled we want to skip anything after this as well.
if s.State != ProcessOfflineState || !s.CrashDetection.Enabled {
if s.CrashDetection.Enabled {
if !s.CrashDetection.Enabled {
zap.S().Debugw("server triggered crash detection but handler is disabled for server process", zap.String("server", s.Uuid))
s.SendConsoleOutputFromDaemon("Server detected as crashed; crash detection is disabled for this instance.")
}
return nil
@ -53,10 +56,16 @@ func (s *Server) handleServerCrash() error {
return nil
}
s.SendConsoleOutputFromDaemon("---------- Detected server process in a crashed state! ----------")
s.SendConsoleOutputFromDaemon(fmt.Sprintf("Exit code: %d", exitCode))
s.SendConsoleOutputFromDaemon(fmt.Sprintf("Out of memory: %t", oomKilled))
c := s.CrashDetection.lastCrash
// If the last crash time was within the last 60 seconds we do not want to perform
// an automatic reboot of the process. Return an error that can be handled.
if !c.IsZero() && c.Add(time.Second * 60).After(time.Now()) {
s.SendConsoleOutputFromDaemon("Aborting automatic reboot: last crash occurred less than 60 seconds ago.")
return &crashTooFrequent{}
}

22
server/events.go
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@ -1,5 +1,10 @@
package server
import (
"fmt"
"github.com/mitchellh/colorstring"
)
type EventListeners map[string][]EventListenerFunction
type EventListenerFunction *func(string)
@ -8,8 +13,8 @@ type EventListenerFunction *func(string)
// noinspection GoNameStartsWithPackageName
const (
ConsoleOutputEvent = "console output"
StatusEvent = "status"
StatsEvent = "stats"
StatusEvent = "status"
StatsEvent = "stats"
)
// Adds an event listener for the server instance.
@ -41,9 +46,18 @@ func (s *Server) RemoveListener(event string, f EventListenerFunction) {
func (s *Server) Emit(event string, data string) {
if _, ok := s.listeners[event]; ok {
for _, handler := range s.listeners[event] {
go func (f EventListenerFunction, d string) {
go func(f EventListenerFunction, d string) {
(*f)(d)
}(handler, data)
}
}
}
}
// Sends output to the server console formatted to appear correctly as being sent
// from Wings.
func (s *Server) SendConsoleOutputFromDaemon(data string) {
s.Emit(
ConsoleOutputEvent,
colorstring.Color(fmt.Sprintf("[yellow][bold][Pterodactyl Daemon]:[default] %s", data)),
)
}