[#3896bk] Configure base support for properties file parsing

server/config_parser.go

@@ -0,0 +1,33 @@
+package server
+
+import (
+	"go.uber.org/zap"
+	"sync"
+)
+
+// Parent function that will update all of the defined configuration files for a server
+// automatically to ensure that they always use the specified values.
+func (s *Server) UpdateConfigurationFiles() {
+	wg := new(sync.WaitGroup)
+
+	for _, v := range s.processConfiguration.ConfigurationFiles {
+		wg.Add(1)
+
+		go func(server *Server) {
+			defer wg.Done()
+
+			p, err := s.Filesystem.SafePath(v.FileName)
+			if err != nil {
+				zap.S().Errorw("failed to generate safe path for configuration file", zap.String("server", server.Uuid), zap.Error(err))
+
+				return
+			}
+
+			if err := v.Parse(p); err != nil {
+				zap.S().Errorw("failed to parse and update server configuration file", zap.String("server", server.Uuid), zap.Error(err))
+			}
+		}(s)
+	}
+
+	wg.Wait()
+}

server/environment_docker.go

@@ -261,6 +261,13 @@ func (d *DockerEnvironment) Start() error {
 		}
 	}
 
+	// Update the configuration files defined for the server before beginning the boot process.
+	// This process executes a bunch of parallel updates, so we just block until that process
+	// is completed. Any errors as a result of this will just be bubbled out in the logger,
+	// we don't need to actively do anything about it at this point, worst comes to worst the
+	// server starts in a weird state and the user can manually adjust.
+	d.Server.UpdateConfigurationFiles()
+
 	// Reset the permissions on files for the server before actually trying
 	// to start it.
 	if err := d.Server.Filesystem.Chown("/"); err != nil {