fix: add current timestamp for file upload to container (#259)

internal/provider/resource_docker_container_funcs.go

@@ -458,6 +458,7 @@ func resourceDockerContainerCreate(ctx context.Context, d *schema.ResourceData,
 				Name:    file,
 				Mode:    mode,
 				Size:    int64(len(contentToUpload)),
+				ModTime: time.Now(),
 			}
 			if err := tw.WriteHeader(hdr); err != nil {
 				return diag.Errorf("Error creating tar archive: %s", err)

internal/provider/resource_docker_container_test.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"reflect"
 	"regexp"
@@ -776,6 +777,22 @@ func TestAccDockerContainer_uploadSource(t *testing.T) {
 			return fmt.Errorf("file content is invalid")
 		}
 
+		// we directly exec the container and print the creation timestamp
+		// which is easier to use the native docker sdk, by creating, running and attaching a reader to the command.
+		execReponse, err := exec.Command("docker", "exec", "-t", "tf-test", "find", "/terraform", "-maxdepth", "1", "-name", "test.txt", "-printf", "%CY-%Cm-%Cd").Output()
+		if err != nil {
+			return fmt.Errorf("Unable to exec command: %s", err)
+		}
+
+		fileCreationTime, err := time.Parse("2006-01-02", string(execReponse))
+		if err != nil {
+			return fmt.Errorf("Unable to parse file creation time into format: %s", err)
+		}
+
+		if fileCreationTime.IsZero() {
+			return fmt.Errorf("file creation time is zero: %s", err)
+		}
+
 		return nil
 	}