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adding connected players prometheus gauge #162

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merged 1 commit into from
Feb 16, 2022
Merged

adding connected players prometheus gauge #162

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19 changes: 15 additions & 4 deletions cmd/nodeagent/nodeagentmanager.go
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,11 @@ var (
Name: "game_server_states",
Help: "Game server states",
}, []string{"name", "state"})

ConnectedPlayersGauge = promauto.NewGaugeVec(prometheus.GaugeOpts{
Name: "connected_players",
Help: "Number of connected players per GameServer",
}, []string{"namespace", "name"})
)

type NodeAgentManager struct {
Expand Down Expand Up @@ -351,18 +356,24 @@ func (n *NodeAgentManager) updateConnectedPlayersIfNeeded(ctx context.Context, h
if hb.CurrentGameState != GameStateActive || gsd.ConnectedPlayersCount == len(hb.CurrentPlayers) {
return nil
}
currentPlayerIDs := make([]string, len(hb.CurrentPlayers))

connectedPlayersCount := len(hb.CurrentPlayers)

// set the prometheus gauge
ConnectedPlayersGauge.WithLabelValues(gsd.GameServerNamespace, gameServerName).Set(float64(connectedPlayersCount))

currentPlayerIDs := make([]string, connectedPlayersCount)
for i := 0; i < len(hb.CurrentPlayers); i++ {
currentPlayerIDs[i] = hb.CurrentPlayers[i].PlayerId
}
logger.Infof("ConnectedPlayersCount is different than before, updating. Old connectedPlayersCount %d, new connectedPlayersCount %d", gsd.ConnectedPlayersCount, len(hb.CurrentPlayers))

gsdPatchSpec := mpsv1alpha1.GameServerDetailSpec{}
if len(hb.CurrentPlayers) == 0 {
if connectedPlayersCount == 0 {
gsdPatchSpec.ConnectedPlayersCount = 0
gsdPatchSpec.ConnectedPlayers = make([]string, 0)
} else {
gsdPatchSpec.ConnectedPlayersCount = len(hb.CurrentPlayers)
gsdPatchSpec.ConnectedPlayersCount = connectedPlayersCount
gsdPatchSpec.ConnectedPlayers = currentPlayerIDs
}

Expand Down Expand Up @@ -390,7 +401,7 @@ func (n *NodeAgentManager) updateConnectedPlayersIfNeeded(ctx context.Context, h
// storing the current number in memory
gsd.Mutex.Lock()
defer gsd.Mutex.Unlock()
gsd.ConnectedPlayersCount = len(hb.CurrentPlayers)
gsd.ConnectedPlayersCount = connectedPlayersCount

return nil
}
Expand Down