ipatests: TestMultipleExternalCA: Create tempfiles on remote host

Previously, `test_master_install_ca1` and `test_master_install_ca2`
attempt to create tempdirs on local host and later write some
content into the returned paths on remote host. This fails if
a remote host is a local one.

The existent `create_temp_file` function has been extended to
support `suffix` option of `mktemp`.

Fixes: https://pagure.io/freeipa/issue/9013
Signed-off-by: Stanislav Levin <slev@altlinux.org>
Reviewed-By: Mohammad Rizwan <myusuf@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>

ipatests/pytest_ipa/integration/tasks.py

@@ -2099,13 +2099,15 @@ def ldapsearch_dm(host, base, ldap_args, scope='sub', **kwargs):
     return host.run_command(args, **kwargs)
 
 
-def create_temp_file(host, directory=None, create_file=True):
-    """Creates temporary file using mktemp."""
+def create_temp_file(host, directory=None, suffix=None, create_file=True):
+    """Creates temporary file using mktemp. See `man 1 mktemp`."""
     cmd = ['mktemp']
     if create_file is False:
         cmd += ['--dry-run']
     if directory is not None:
         cmd += ['-p', directory]
+    if suffix is not None:
+        cmd.extend(["--suffix", suffix])
     return host.run_command(cmd).stdout_text.strip()