[Integ-tests] Use right permission to operate on log files

In many of the operating systems ParallelCluster supported, `root` user could bypass any files permissions. However, with RHEL9 and Rocky9, `root` user could not bypass files permissions by default. Therefore, this commit improves integration tests to operate on files with the owner users of the files

Signed-off-by: Hanwen <[email protected]>

tests/integration-tests/remote_command_executor.py

@@ -233,7 +233,13 @@ def get_remote_files(self, *args, **kwargs):
     def clear_log_file(self, path: str):
         """Clear a log file in a specific path."""
 
-        self.run_remote_command(f"sudo truncate -s 0 {path}")
+        log_file_owner_result = self.run_remote_command(f"stat -c '%U' {path}", raise_on_error=False)
+        if log_file_owner_result.failed:
+            # If failed, it means the `log_path` does not contain files/directories. Use root as the default owner.
+            log_file_owner = "root"
+        else:
+            log_file_owner = log_file_owner_result.stdout.strip()
+        self.run_remote_command(f"sudo -u {log_file_owner} truncate -s 0 {path}")
 
     def clear_clustermgtd_log(self):
         """Clear clustermgtd log file."""

tests/integration-tests/tests/cloudwatch_logging/test_cloudwatch_logging.py

@@ -356,7 +356,15 @@ def _write_dummy_message_to_log(self, log_path, node_type):
         dummy_log_entry = "CloudWatch logs integ test - ensuring critical log file is not empty"
         self._run_command_on_head_node(f"echo '{dummy_log_entry}' > {dummy_log_message_path}")
         # Append the dummy entry to the log
-        cmd = f"sudo tee -a {log_path} < {dummy_log_message_path}"
+        log_file_owner_result = self.remote_command_executor.run_remote_command(
+            f"stat -c '%U' {log_path}", raise_on_error=False
+        )
+        if log_file_owner_result.failed:
+            # If failed, it means the `log_path` does not contain files/directories. Use root as the default owner.
+            log_file_owner = "root"
+        else:
+            log_file_owner = log_file_owner_result.stdout.strip()
+        cmd = f"sudo -u {log_file_owner} tee -a {log_path} < {dummy_log_message_path}"
         if node_type == HEAD_NODE_ROLE_NAME:
             self._run_command_on_head_node(cmd)
         elif node_type == COMPUTE_NODE_ROLE_NAME: