diff options
Diffstat (limited to 'pkg/api')
| -rw-r--r-- | pkg/api/api0/serverlist.go | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/pkg/api/api0/serverlist.go b/pkg/api/api0/serverlist.go index 35be9f6..561acbe 100644 --- a/pkg/api/api0/serverlist.go +++ b/pkg/api/api0/serverlist.go @@ -12,6 +12,8 @@ import ( "sync/atomic" "time" "unicode/utf8" + + "github.com/pg9182/atlas/pkg/nstypes" ) // ServerList stores information about registered game servers. It does not do @@ -359,6 +361,217 @@ func (s *ServerList) csForceUpdate() { s.csForce.Store(true) } +// GetMetrics gets Prometheus text format metrics about live servers in the +// server list. All metrics begin with atlas_api0sl_. +// +// Note: Playlist/map metric labels are limited to known values, or "other". +func (s *ServerList) GetMetrics() []byte { + t := s.now() + + // take a read lock on the server list + s.mu.RLock() + defer s.mu.RUnlock() + + // init metric counters + type mod struct { + Name string + Version string + RequiredOnClient bool + } + + type mpl struct { + Map nstypes.Map + Playlist nstypes.Playlist + } + mpls := make([]mpl, 0, (len(nstypes.Maps())+1)*(len(nstypes.Playlists())+1)) + for _, pl := range nstypes.Playlists() { + mpls = append(mpls, mpl{nstypes.Map(""), pl}) + } + for _, m := range nstypes.Maps() { + for _, pl := range nstypes.Playlists() { + mpls = append(mpls, mpl{m, pl}) + } + mpls = append(mpls, mpl{m, nstypes.Playlist("")}) + } + + var players, maxPlayers, servers int + mplPlayers := make(map[mpl]int, len(mpls)) + mplMaxPlayers := make(map[mpl]int, len(mpls)) + mplServers := make(map[mpl]int, len(mpls)) + verServers := map[string]int{} + modServers := map[mod]int{} + + // populate values + if s.servers1 != nil { + for _, srv := range s.servers1 { + if s.serverState(srv, t) == serverListStateAlive { + var mplv mpl + if m := nstypes.Map(srv.Map); m.Known() { + mplv.Map = m + } + if pl := nstypes.Playlist(srv.Playlist); pl.Known() { + mplv.Playlist = pl + } + players += srv.PlayerCount + maxPlayers += srv.MaxPlayers + servers++ + mplPlayers[mplv] += srv.PlayerCount + mplMaxPlayers[mplv] += srv.MaxPlayers + mplServers[mplv]++ + verServers[srv.LauncherVersion]++ + for _, mi := range srv.ModInfo { + modServers[mod(mi)]++ + } + } + } + } + + // write metrics + var b bytes.Buffer + + b.WriteString(`atlas_api0sl_map_info{map="_other",map_title="Other"}`) + b.WriteByte('\n') + for _, m := range nstypes.Maps() { + b.WriteString(`atlas_api0sl_map_info{map="`) + b.WriteString(string(m)) + b.WriteString(`",map_title="`) + t, _ := m.Title() + b.WriteString(t) + b.WriteString(`"} 1`) + b.WriteByte('\n') + } + b.WriteByte('\n') + + b.WriteString(`atlas_api0sl_playlist_info{playlist="_other",playlist_title="Other"}`) + b.WriteByte('\n') + for _, pl := range nstypes.Playlists() { + b.WriteString(`atlas_api0sl_playlist_info{playlist="`) + b.WriteString(string(pl)) + b.WriteString(`",playlist_title="`) + t, _ := pl.Title() + b.WriteString(t) + b.WriteString(`"} 1`) + b.WriteByte('\n') + } + b.WriteByte('\n') + + for _, mplv := range mpls { + if n := mplPlayers[mplv]; n != 0 { + b.WriteString(`atlas_api0sl_mpl_players{map="`) + if mplv.Map != "" { + b.WriteString(string(mplv.Map)) + } else { + b.WriteString("_other") + } + b.WriteString(`",playlist="`) + if mplv.Playlist != "" { + b.WriteString(string(mplv.Playlist)) + } else { + b.WriteString("_other") + } + b.WriteString(`"} `) + b.WriteString(strconv.Itoa(n)) + b.WriteByte('\n') + } + } + b.WriteByte('\n') + + for _, mplv := range mpls { + if n := mplMaxPlayers[mplv]; n != 0 { + b.WriteString(`atlas_api0sl_mpl_maxplayers{map="`) + if mplv.Map != "" { + b.WriteString(string(mplv.Map)) + } else { + b.WriteString("_other") + } + b.WriteString(`",playlist="`) + if mplv.Playlist != "" { + b.WriteString(string(mplv.Playlist)) + } else { + b.WriteString("_other") + } + b.WriteString(`"} `) + b.WriteString(strconv.Itoa(n)) + b.WriteByte('\n') + } + } + b.WriteByte('\n') + + for _, mplv := range mpls { + if n := mplServers[mplv]; n != 0 { + b.WriteString(`atlas_api0sl_mpl_servers{map="`) + if mplv.Map != "" { + b.WriteString(string(mplv.Map)) + } else { + b.WriteString("_other") + } + b.WriteString(`",playlist="`) + if mplv.Playlist != "" { + b.WriteString(string(mplv.Playlist)) + } else { + b.WriteString("_other") + } + b.WriteString(`"} `) + b.WriteString(strconv.Itoa(n)) + b.WriteByte('\n') + } + } + b.WriteByte('\n') + + var vers []string + for ver := range verServers { + vers = append(vers, ver) + } + sort.Strings(vers) + + for _, ver := range vers { + b.WriteString(`atlas_api0sl_ver_servers{launcher_version=`) + b.WriteString(strconv.Quote(ver)) + b.WriteString("} ") + b.WriteString(strconv.Itoa(verServers[ver])) + b.WriteByte('\n') + } + b.WriteByte('\n') + + var mods []mod + for modv := range modServers { + mods = append(mods, modv) + } + sort.Slice(mods, func(i, j int) bool { + a, b := mods[i], mods[j] + return a.Name < b.Name || + (a.Name == b.Name && (a.Version < b.Version || + (a.Version == b.Version && !a.RequiredOnClient && b.RequiredOnClient))) + }) + + for _, modv := range mods { + b.WriteString(`atlas_api0sl_mod_servers{mod_name=`) + b.WriteString(strconv.Quote(modv.Name)) + b.WriteString(`,mod_version=`) + b.WriteString(strconv.Quote(modv.Version)) + if modv.RequiredOnClient { + b.WriteString(`,mod_required_on_client="true"} `) + } else { + b.WriteString(`,mod_required_on_client="false"} `) + } + b.WriteString(strconv.Itoa(modServers[modv])) + b.WriteByte('\n') + } + b.WriteByte('\n') + + b.WriteString(`atlas_api0sl_players `) + b.WriteString(strconv.Itoa(players)) + b.WriteByte('\n') + b.WriteString(`atlas_api0sl_maxplayers `) + b.WriteString(strconv.Itoa(maxPlayers)) + b.WriteByte('\n') + b.WriteString(`atlas_api0sl_servers `) + b.WriteString(strconv.Itoa(servers)) + b.WriteByte('\n') + + return b.Bytes() +} + // GetLiveServers loops over live (i.e., not dead/ghost) servers until fn // returns false. The order of the servers is non-deterministic. func (s *ServerList) GetLiveServers(fn func(*Server) bool) { |