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Redis player count for clustering

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This commit is contained in:
Vincent Schweiger
2022-08-05 14:26:35 +02:00
parent 4985420f5c
commit 03d1a42d4f
3 changed files with 53 additions and 9 deletions
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go.mod
+5 -2
View File
@@ -12,7 +12,9 @@ require (
require (
github.com/agext/levenshtein v1.2.3 // indirect
github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da // indirect
github.com/cespare/xxhash/v2 v2.1.2 // indirect
github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
github.com/emirpasic/gods v1.12.0 // indirect
github.com/fatih/color v1.9.0 // indirect
github.com/francoispqt/gojay v1.2.13 // indirect
@@ -21,6 +23,7 @@ require (
github.com/go-gl/mathgl v1.0.0 // indirect
github.com/go-logr/logr v1.2.3 // indirect
github.com/go-logr/zapr v1.2.3 // indirect
github.com/go-redis/redis/v9 v9.0.0-beta.2 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/protobuf v1.5.2 // indirect
github.com/google/uuid v1.3.0 // indirect
@@ -57,8 +60,8 @@ require (
go.uber.org/multierr v1.6.0 // indirect
go.uber.org/zap v1.19.1 // indirect
golang.org/x/image v0.0.0-20190802002840-cff245a6509b // indirect
golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad // indirect
golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 // indirect
golang.org/x/text v0.3.7 // indirect
golang.org/x/time v0.0.0-20220224211638-0e9765cccd65 // indirect
google.golang.org/genproto v0.0.0-20220222154240-daf995802d7b // indirect
go.sum
+11
View File
@@ -65,6 +65,8 @@ github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7
github.com/bxcodec/faker/v3 v3.6.0 h1:Meuh+M6pQJsQJwxVALq6H5wpDzkZ4pStV9pmH7gbKKs=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
@@ -84,6 +86,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/emirpasic/gods v1.12.0 h1:QAUIPSaCu4G+POclxeqb3F+WPpdKqFGlw36+yOzGlrg=
github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
@@ -131,6 +135,8 @@ github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD87
github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
github.com/go-playground/validator/v10 v10.2.0 h1:KgJ0snyC2R9VXYN2rneOtQcw5aHQB1Vv0sFl1UcHBOY=
github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI=
github.com/go-redis/redis/v9 v9.0.0-beta.2 h1:ZSr84TsnQyKMAg8gnV+oawuQezeJR11/09THcWCQzr4=
github.com/go-redis/redis/v9 v9.0.0-beta.2/go.mod h1:Bldcd/M/bm9HbnNPi/LUtYBSD8ttcZYBMupwMXhdU0o=
github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
github.com/gobwas/httphead v0.1.0 h1:exrUm0f4YX0L7EBwZHuCF4GDp8aJfVeBrlLQrs6NqWU=
github.com/gobwas/pool v0.2.0/go.mod h1:q8bcK0KcYlCgd9e7WYLm9LpyS+YeLd8JVDW6WezmKEw=
@@ -189,6 +195,7 @@ github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=
github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
github.com/google/go-cmp v0.5.8 h1:e6P7q2lk1O+qJJb4BtCQXlK8vWEO8V1ZeuEdJNOqZyg=
github.com/google/go-github v17.0.0+incompatible/go.mod h1:zLgOLi98H3fifZn+44m+umXrS52loVEgC2AApnigrVQ=
github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@@ -562,6 +569,8 @@ golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96b
golang.org/x/net v0.0.0-20210410081132-afb366fc7cd1/go.mod h1:9tjilg8BloeKEkVJvy7fQ90B1CfIiPueXVOjqfkSzI8=
golang.org/x/net v0.0.0-20220225172249-27dd8689420f h1:oA4XRj0qtSt8Yo1Zms0CUlsT3KG69V2UGQWPBxujDmc=
golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 h1:HVyaeDAYux4pnY+D/SiwmLOR36ewZ4iGQIIrtnuCjFA=
golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20181017192945-9dcd33a902f4/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20181203162652-d668ce993890/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -642,6 +651,8 @@ golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad h1:ntjMns5wyP/fN65tdBD4g8J5w8n015+iIIs9rtjXkY0=
golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150 h1:xHms4gcpe1YE7A3yIllJXP16CMAGuqwO2lX1mTyyRRc=
golang.org/x/sys v0.0.0-20220422013727-9388b58f7150/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
main.go
+37 -7
View File
@@ -1,11 +1,15 @@
package main
import (
"context"
"fmt"
"log"
"net"
"os"
"strconv"
"time"
"github.com/go-redis/redis/v9"
"github.com/hashicorp/consul/api"
"go.minekube.com/brigodier"
. "go.minekube.com/common/minecraft/component"
@@ -53,7 +57,7 @@ func (p *FenceProxy) init() error {
func (p *FenceProxy) registerServers() {
// Get a new client
config := api.DefaultConfig()
config.Address = "consul1.pawott.de:8500"
config.Address = getEnv("CONSUL_ADDR", "127.0.0.1:8500")
client, err := api.NewClient(config)
if err != nil {
panic(err)
@@ -164,11 +168,28 @@ func (p *FenceProxy) registerCommands() {
))
}
var ctx = context.Background()
var localPlayers int64 = 0
// Register event subscribers
func (p *FenceProxy) registerSubscribers() error {
rdb := redis.NewClient(&redis.Options{
Addr: getEnv("REDIS_ADDR", "localhost:6379"),
Password: "", // no password set
DB: 0, // use default DB
})
p.Event().Subscribe(&proxy.PingEvent{}, 0, func(ev event.Event) {
e := ev.(*proxy.PingEvent)
p := e.Ping()
val, err := rdb.Get(ctx, "players").Result()
if err == redis.Nil {
// does not exist yet
rdb.Set(ctx, "players", 0, 0)
} else if err != nil {
panic(err)
}
p.Players.Online, _ = strconv.Atoi(val)
p.Players.Max = p.Players.Online + 1
})
p.Event().Subscribe(&proxy.LoginEvent{}, 0, func(ev event.Event) {
@@ -178,16 +199,25 @@ func (p *FenceProxy) registerSubscribers() error {
p.Event().Subscribe(&proxy.PlayerChooseInitialServerEvent{}, 0, func(ev event.Event) {
e := ev.(*proxy.PlayerChooseInitialServerEvent)
e.SetInitialServer(p.Servers()[0])
localPlayers += 1
rdb.Incr(ctx, "players")
})
p.Event().Subscribe(&proxy.DisconnectEvent{}, 0, func(ev event.Event) {
localPlayers -= 1
rdb.Decr(ctx, "players")
})
p.Event().Subscribe(&proxy.ShutdownEvent{}, 0, func(ev event.Event) {
rdb.DecrBy(ctx, "players", localPlayers)
})
return nil
}
func contains(list []proxy.ServerInfo, b proxy.ServerInfo) bool {
for _, as := range list {
if as == b {
return true
func getEnv(key, fallback string) string {
if value, ok := os.LookupEnv(key); ok {
return value
}
}
return false
return fallback
}