Runners are removed from manager when alloacted

This removes an existing unlocked shared access to runner.running.
This also sets us up for better management of the runners.

runnermanager/runner.go

@@ -22,17 +22,27 @@ type Runner struct {
 	tags        []string
 	conn        *websocket.Conn
 	receiveChan chan []byte
-	running     bool
+}
+
+func (r *Runner) HasTags(requestedTags []string) bool {
+tagIter:
+	for _, requestedTag := range requestedTags {
+		for _, posessedTag := range r.tags {
+			// if we find the tag, move on to search for the next one
+			if posessedTag == requestedTag {
+				continue tagIter
+			}
+		}
+		// if we don't find the tag
+		return false
+	}
+	return true
 }
 
 func (r *Runner) Id() uuid.UUID {
 	return r.id
 }
 
-func (r *Runner) Release() {
-	r.running = false
-}
-
 func (r *Runner) RunCommand(cmd string, args []string) (returnCode int64, stdout string, stderr string, err error) {
 
 	// Write RunCommand message to client