Chrooted executor (#711)

Signed-off-by: Mikhail Scherba <[email protected]>

Author: miklezzzz

pkg/executor/executor.go

@@ -55,6 +55,18 @@ func (e *Executor) WithLogger(logger *log.Logger) *Executor {
 	return e
 }
 
+func (e *Executor) WithChroot(path string) *Executor {
+	if len(path) > 0 {
+		e.cmd.SysProcAttr = &syscall.SysProcAttr{
+			Chroot: path,
+		}
+		e.cmd.Path = strings.TrimPrefix(e.cmd.Path, path)
+		e.cmd.Dir = "/"
+	}
+
+	return e
+}
+
 func (e *Executor) WithCMDStdout(w io.Writer) *Executor {
 	e.cmd.Stdout = w
 

pkg/executor/executor_test.go

@@ -107,9 +107,8 @@ func TestRunAndLogLines(t *testing.T) {
 		_, err := ex.RunAndLogLines(map[string]string{"a": "b"})
 		assert.NoError(t, err)
 
-		assert.Equal(t, buf.String(), `{"level":"debug","msg":"json log line not map[string]interface{}","source":"executor/executor.go:177","a":"b","line":["a","b","c"],"output":"stdout","time":"2006-01-02T15:04:05Z"}`+"\n"+
-			`{"level":"info","msg":"[\"a\",\"b\",\"c\"]\n","source":"executor/executor.go:180","a":"b","output":"stdout","time":"2006-01-02T15:04:05Z"}`+"\n")
-
+		assert.Equal(t, buf.String(), `{"level":"debug","msg":"json log line not map[string]interface{}","source":"executor/executor.go:189","a":"b","line":["a","b","c"],"output":"stdout","time":"2006-01-02T15:04:05Z"}`+"\n"+
+			`{"level":"info","msg":"[\"a\",\"b\",\"c\"]\n","source":"executor/executor.go:192","a":"b","output":"stdout","time":"2006-01-02T15:04:05Z"}`+"\n")
 		buf.Reset()
 	})