Assiging first user system_admin role

api/user.go

@@ -167,6 +167,19 @@ func CreateUser(c *Context, team *model.Team, user *model.User) *model.User {
 	if team.Email == user.Email {
 		user.Roles = model.ROLE_TEAM_ADMIN
 		channelRole = model.CHANNEL_ROLE_ADMIN
+
+		// Below is a speical case where the first user in the entire
+		// system is granted the system_admin role instead of admin
+		if result := <-Srv.Store.User().GetTotalUsersCount(); result.Err != nil {
+			c.Err = result.Err
+			return nil
+		} else {
+			count := result.Data.(int64)
+			if count <= 0 {
+				user.Roles = model.ROLE_SYSTEM_ADMIN
+			}
+		}
+
 	} else {
 		user.Roles = ""
 	}

store/sql_user_store.go

@@ -481,3 +481,22 @@ func (us SqlUserStore) GetForExport(teamId string) StoreChannel {
 
 	return storeChannel
 }
+
+func (us SqlUserStore) GetTotalUsersCount() StoreChannel {
+	storeChannel := make(StoreChannel)
+
+	go func() {
+		result := StoreResult{}
+
+		if count, err := us.GetReplica().SelectInt("SELECT COUNT(Id) FROM Users"); err != nil {
+			result.Err = model.NewAppError("SqlUserStore.GetTotalUsersCount", "We could not count the users", err.Error())
+		} else {
+			result.Data = count
+		}
+
+		storeChannel <- result
+		close(storeChannel)
+	}()
+
+	return storeChannel
+}

store/sql_user_store_test.go

@@ -206,6 +206,24 @@ func TestUserStoreGet(t *testing.T) {
 	}
 }
 
+func TestUserCountt(t *testing.T) {
+	Setup()
+
+	u1 := model.User{}
+	u1.TeamId = model.NewId()
+	u1.Email = model.NewId()
+	Must(store.User().Save(&u1))
+
+	if result := <-store.User().GetTotalUsersCount(); result.Err != nil {
+		t.Fatal(result.Err)
+	} else {
+		count := result.Data.(int64)
+		if count <= 0 {
+			t.Fatal()
+		}
+	}
+}
+
 func TestUserStoreGetProfiles(t *testing.T) {
 	Setup()
 

store/store.go

@@ -103,6 +103,7 @@ type UserStore interface {
 	GetEtagForProfiles(teamId string) StoreChannel
 	UpdateFailedPasswordAttempts(userId string, attempts int) StoreChannel
 	GetForExport(teamId string) StoreChannel
+	GetTotalUsersCount() StoreChannel
 }
 
 type SessionStore interface {