Cache Gameservers in Redis

[klokailo]

Goal

Our redis cache already included session:CLIENT_ID mapped to GAME_SERVER_NAME for each player's session.

Now we also include gameserver:GAME_SERVER_NAME to GAME_SERVER_MODEL. Said model has these attributes:

• IP address: This is outside the cluster! NodePort equivalent)
• Port: assigned dynamically by agones, NOT static 7654)
• GameServerName: The name of the gameserver's kubernetes resource (like spydle-fleet-12345-abcde)
• roomId: Unique ID for the room
• publicRoom: Bool, is this room open to everyone?
• GameServerState: Enum with WAITING, PLAYING, or FINISHING
  • WAITING: game hasn't started yet, but server is allocated and players can join
  • PLAYING: players are mid-game
  • FINISHING: Agones is in the process of destroying this instance post-game

Note that this model is generated via openapi/swagger and is consistent across GS and MM.

Future TODO

• We should also store roomid:ROOM_ID to GAME_SERVER_NAME in redis for quick lookup and room ID assignment.