Restore native dba.reboot_cluster_from_complete_outage() (#155)

Signed-off-by: Gianluca Borello <g.borello@gmail.com>

Author: gianlucaborello

pkg/util/mysqlsh/mysqlsh.go

@@ -197,36 +197,8 @@ func (r *runner) run(ctx context.Context, python string) ([]byte, error) {
 }
 
 func (r *runner) RebootClusterFromCompleteOutage(ctx context.Context) error {
-	r.mu.Lock()
-	defer r.mu.Unlock()
-
-	stdout := &bytes.Buffer{}
-	stderr := &bytes.Buffer{}
-
-	// NOTE(apryde): This is implemented in SQL rather than as a call to
-	// dba.reboot_cluster_from_complete_outage() due to https://bugs.mysql.com/90793.
-	sql := strings.Join([]string{
-		"RESET PERSIST group_replication_bootstrap_group;",
-		"SET GLOBAL group_replication_bootstrap_group=ON;",
-		"start group_replication;",
-	}, " ")
-
-	args := []string{"--no-wizard", "--uri", r.uri, "--sql", "-e", sql}
-
-	cmd := r.exec.CommandContext(ctx, "mysqlsh", args...)
-
-	cmd.SetStdout(stdout)
-	cmd.SetStderr(stderr)
-
-	glog.V(6).Infof("Running command: mysqlsh %v", args)
-	err := cmd.Run()
-	glog.V(6).Infof("    stdout: %s\n    stderr: %s\n    err: %s", stdout, stderr, err)
-	if err != nil {
-		underlying := NewErrorFromStderr(stderr.String())
-		if underlying != nil {
-			return errors.WithStack(underlying)
-		}
-	}
+	python := fmt.Sprintf("dba.reboot_cluster_from_complete_outage('%s')", innodb.DefaultClusterName)
+	_, err := r.run(ctx, python)
 	return err
 }