tests: add rpk cloud login test

Simple rpk cloud login and logout using credentials
and checking that it writes the token to the
rpk.yaml.

tests/rptest/clients/rpk.py

@@ -1186,7 +1186,7 @@ def cloud_login_cc(self, id, secret):
 
         cmd = [
             self._rpk_binary(), "cloud", "login", "--client-id", id,
-            "--client-secret", secret
+            "--client-secret", secret, "--save"
         ]
 
         self._redpanda.logger.debug(

tests/rptest/clients/rpk_remote.py

@@ -75,7 +75,8 @@ def create_profile(self, name):
         return self._run_profile(cmd)
 
     def create_profile_simple(self, name, cfg_location):
-        return self._execute(['create', name, "--from-simple", cfg_location])
+        return self._run_profile(
+            ['create', name, "--from-simple", cfg_location])
 
     def use_profile(self, name):
         cmd = ["use", name]

tests/rptest/tests/rpk_cloud_test.py

@@ -0,0 +1,66 @@
+# Copyright 2023 Redpanda Data, Inc.
+#
+# Use of this software is governed by the Business Source License
+# included in the file licenses/BSL.md
+#
+# As of the Change Date specified in that file, in accordance with
+# the Business Source License, use of this software will be governed
+# by the Apache License, Version 2.0
+
+import os
+import tempfile
+import yaml
+
+from rptest.services.cluster import cluster
+
+from rptest.utils.rpk_config import read_rpk_cfg, clean_runner_rpk_cfg
+from rptest.tests.redpanda_test import RedpandaTest
+from rptest.services.redpanda import RedpandaService
+from rptest.clients.rpk import RpkTool
+
+
+def get_ci_env_var(env_var):
+    out = os.environ.get(env_var, None)
+    if out is None:
+        is_ci = os.environ.get("CI", "false")
+        if is_ci == "true":
+            raise RuntimeError(
+                f"Expected {env_var} variable to be set in this environment")
+
+    return out
+
+
+class RpkCloudTest(RedpandaTest):
+    def __init__(self, ctx):
+        super(RpkCloudTest, self).__init__(test_context=ctx)
+        self._ctx = ctx
+        self._rpk = RpkTool(self.redpanda)
+        clean_runner_rpk_cfg()
+
+    @cluster(num_nodes=1)
+    def test_cloud_login_logout_cc(self):
+        """
+        Test login to cloud via rpk using client
+        credentials, make sure we store the token and
+        then delete it when we logout.
+        """
+        id = get_ci_env_var("RPK_TEST_CLIENT_ID")
+        secret = get_ci_env_var("RPK_TEST_CLIENT_SECRET")
+        if id is None or secret is None:
+            self.logger.warn(
+                "Skipping test, client credentials env vars not found")
+            return
+
+        output = self._rpk.cloud_login_cc(id, secret)
+        assert "Successfully logged in" in output
+
+        # Check for a token present in file.
+        rpk_yaml = read_rpk_cfg()
+        assert rpk_yaml["cloud_auth"][0]["auth_token"] is not None
+
+        # Check that the token is not there anymore.
+        output = self._rpk.cloud_logout()
+        assert "You are now logged out" in output
+        rpk_yaml = read_rpk_cfg()
+
+        assert "auth_token" not in rpk_yaml["cloud_auth"][0]