tools/run-centos: cleanups and move to using read-dependencies

These changes are all in an effort to get tools/run-centos using
read-dependencies rather than the 'setup-centos' script with a separate
set of dependencies listed.

 - tools/read-dependencies: support taking multiple --requirements
   options.  This allows run-centos to get both test and build
   dependencies.  Ultimately, I think it might be nicer for
   read-dependencies to take a list of "goals" (build, test, run or
   test-tox) rather than having the caller need to know to provide
   multiple --requirements.

 - packages/pkg-deps.json: drop the version on the sudo package.
   centos 6 has newer (1.8.6p3) version than listed, so its not a problem.

 - test_handler_disk_setup.py: a test case here was using assertLogs
   which is not present in the version of unittest2 that is available in
   centos 6 epel. We just adjust it to use with_logs = True.

 - tools/run-cents:
   - improve usage with example
   - add 'inside_as_cd' to provide the dir you want to cd first to.
   - avoid the intermediate tarball on disk in the container.
   - add 'prep' subcommand and use it to install pre-dependencies.
   - use read-dependencies.

1 files changed, 16 insertions, 16 deletions

diff --git a/tests/unittests/test_handler/test_handler_disk_setup.py b/tests/unittests/test_handler/test_handler_disk_setup.py
index 916a0d7a..8a6d49ed 100644
--- a/tests/unittests/test_handler/test_handler_disk_setup.py
+++ b/tests/unittests/test_handler/test_handler_disk_setup.py
@@ -3,7 +3,7 @@
 import random
 
 from cloudinit.config import cc_disk_setup
-from ..helpers import ExitStack, mock, TestCase
+from ..helpers import CiTestCase, ExitStack, mock, TestCase
 
 
 class TestIsDiskUsed(TestCase):
@@ -174,32 +174,32 @@ class TestUpdateFsSetupDevices(TestCase):
             return_value=('/dev/xdb1', False))
 @mock.patch('cloudinit.config.cc_disk_setup.device_type', return_value=None)
 @mock.patch('cloudinit.config.cc_disk_setup.util.subp', return_value=('', ''))
-class TestMkfsCommandHandling(TestCase):
+class TestMkfsCommandHandling(CiTestCase):
+
+    with_logs = True
 
     def test_with_cmd(self, subp, *args):
         """mkfs honors cmd and logs warnings when extra_opts or overwrite are
         provided."""
-        with self.assertLogs(
-                'cloudinit.config.cc_disk_setup') as logs:
-            cc_disk_setup.mkfs({
-                'cmd': 'mkfs -t %(filesystem)s -L %(label)s %(device)s',
-                'filesystem': 'ext4',
-                'device': '/dev/xdb1',
-                'label': 'with_cmd',
-                'extra_opts': ['should', 'generate', 'warning'],
-                'overwrite': 'should generate warning too'
-            })
+        cc_disk_setup.mkfs({
+            'cmd': 'mkfs -t %(filesystem)s -L %(label)s %(device)s',
+            'filesystem': 'ext4',
+            'device': '/dev/xdb1',
+            'label': 'with_cmd',
+            'extra_opts': ['should', 'generate', 'warning'],
+            'overwrite': 'should generate warning too'
+        })
 
         self.assertIn(
-            'WARNING:cloudinit.config.cc_disk_setup:fs_setup:extra_opts ' +
+            'extra_opts ' +
             'ignored because cmd was specified: mkfs -t ext4 -L with_cmd ' +
             '/dev/xdb1',
-            logs.output)
+            self.logs.getvalue())
         self.assertIn(
-            'WARNING:cloudinit.config.cc_disk_setup:fs_setup:overwrite ' +
+            'overwrite ' +
             'ignored because cmd was specified: mkfs -t ext4 -L with_cmd ' +
             '/dev/xdb1',
-            logs.output)
+            self.logs.getvalue())
 
         subp.assert_called_once_with(
             'mkfs -t ext4 -L with_cmd /dev/xdb1', shell=True)