Completely re-work the server configuration to be separated out better

server/allocations.go

@@ -0,0 +1,17 @@
+package server
+
+// Defines the allocations available for a given server. When using the Docker environment
+// driver these correspond to mappings for the container that allow external connections.
+type Allocations struct {
+	// Defines the default allocation that should be used for this server. This is
+	// what will be used for {SERVER_IP} and {SERVER_PORT} when modifying configuration
+	// files or the startup arguments for a server.
+	DefaultMapping struct {
+		Ip   string `json:"ip"`
+		Port int    `json:"port"`
+	} `json:"default"`
+
+	// Mappings contains all of the ports that should be assigned to a given server
+	// attached to the IP they correspond to.
+	Mappings map[string][]int `json:"mappings"`
+}