diff --git a/bin/pungi-config-validate b/bin/pungi-config-validate
index 20f8094b..3d61f113 100755
--- a/bin/pungi-config-validate
+++ b/bin/pungi-config-validate
@@ -54,7 +54,7 @@ def run(config, topdir, has_old):
         pungi.phases.GatherPhase(compose, pkgset_phase),
         pungi.phases.ExtraFilesPhase(compose, pkgset_phase),
         pungi.phases.CreaterepoPhase(compose),
-        pungi.phases.AtomicInstallerPhase(compose),
+        pungi.phases.OstreeInstallerPhase(compose),
         pungi.phases.OSTreePhase(compose),
         pungi.phases.ProductimgPhase(compose, pkgset_phase),
         pungi.phases.CreateisoPhase(compose),
diff --git a/bin/pungi-koji b/bin/pungi-koji
index a0eba0e1..de596213 100755
--- a/bin/pungi-koji
+++ b/bin/pungi-koji
@@ -227,7 +227,7 @@ def run_compose(compose):
     gather_phase = pungi.phases.GatherPhase(compose, pkgset_phase)
     extrafiles_phase = pungi.phases.ExtraFilesPhase(compose, pkgset_phase)
     createrepo_phase = pungi.phases.CreaterepoPhase(compose)
-    atomic_installer_phase = pungi.phases.AtomicInstallerPhase(compose)
+    ostree_installer_phase = pungi.phases.OstreeInstallerPhase(compose)
     ostree_phase = pungi.phases.OSTreePhase(compose)
     productimg_phase = pungi.phases.ProductimgPhase(compose, pkgset_phase)
     createiso_phase = pungi.phases.CreateisoPhase(compose)
@@ -242,7 +242,7 @@ def run_compose(compose):
                   buildinstall_phase, productimg_phase, gather_phase,
                   extrafiles_phase, createiso_phase, liveimages_phase,
                   livemedia_phase, image_build_phase, image_checksum_phase,
-                  test_phase, ostree_phase, atomic_installer_phase):
+                  test_phase, ostree_phase, ostree_installer_phase):
         if phase.skip():
             continue
         try:
@@ -348,13 +348,13 @@ def run_compose(compose):
     liveimages_phase.start()
     image_build_phase.start()
     livemedia_phase.start()
-    atomic_installer_phase.start()
+    ostree_installer_phase.start()
 
     createiso_phase.stop()
     liveimages_phase.stop()
     image_build_phase.stop()
     livemedia_phase.stop()
-    atomic_installer_phase.stop()
+    ostree_installer_phase.stop()
 
     image_checksum_phase.start()
     image_checksum_phase.stop()
diff --git a/bin/pungi-make-ostree b/bin/pungi-make-ostree
index 4066bdc6..28005884 100755
--- a/bin/pungi-make-ostree
+++ b/bin/pungi-make-ostree
@@ -8,8 +8,8 @@ here = sys.path[0]
 if here != '/usr/bin':
     sys.path.insert(0, os.path.dirname(here))
 
-from pungi import atomic
+from pungi import ostree
 
 
 if __name__ == '__main__':
-    atomic.main()
+    ostree.main()
diff --git a/doc/configuration.rst b/doc/configuration.rst
index 7d4b91ea..36b332a7 100644
--- a/doc/configuration.rst
+++ b/doc/configuration.rst
@@ -142,7 +142,7 @@ Options
      * live
      * image-build
      * live-media
-     * atomic_installer
+     * ostree-installer
 
        .. note::
 
@@ -950,7 +950,7 @@ runroot environment.
     * ``treefile`` -- (*str*) Filename of configuration for ``rpm-ostree``.
     * ``config_url`` -- (*str*) URL for Git repository with the ``treefile``.
     * ``source_repo_from`` -- (*str*) Name of variant serving as source repository.
-    * ``atomic_repo`` -- (*str*) Where to put the atomic repository
+    * ``ostree_repo`` -- (*str*) Where to put the ostree repository
 
     These keys are optional:
 
@@ -968,19 +968,19 @@ Example config
                 "treefile": "fedora-atomic-docker-host.json",
                 "config_url": "https://git.fedorahosted.org/git/fedora-atomic.git",
                 "source_repo_from": "Everything",
-                "atomic_repo": "/mnt/koji/compose/atomic/Rawhide/"
+                "ostree_repo": "/mnt/koji/compose/atomic/Rawhide/"
             }
         })
     ]
 
 
-Atomic Installer Settings
+Ostree Installer Settings
 =========================
 
-The ``atomic_installer`` phase of *Pungi* can produce installer image bundling
+The ``ostree_installer`` phase of *Pungi* can produce installer image bundling
 an OSTree repository. This always runs in Koji as a ``runroot`` task.
 
-**atomic**
+**ostree_installer**
     (*dict*) -- a variant/arch mapping of configuration. The format should be
     ``[(variant_uid_regex, {arch|*: config_dict})]``.
 
@@ -1010,7 +1010,7 @@ Example config
 --------------
 ::
 
-    atomic = [
+    ostree_installer = [
         ("^Atomic$", {
             "x86_64": {
                 "source_repo_from": "Everything",
diff --git a/pungi/atomic.py b/pungi/ostree.py
similarity index 82%
rename from pungi/atomic.py
rename to pungi/ostree.py
index 627ce34d..de2cfcd1 100644
--- a/pungi/atomic.py
+++ b/pungi/ostree.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 """
-This module contains functions required by pungi-make-atomic.
+This module contains functions required by pungi-make-ostree.
 It is expected to be runnable in Koji runroot.
 """
 
@@ -22,16 +22,16 @@ def make_log_file(log_dir, filename):
     return os.path.join(log_dir, '{}.log'.format(filename))
 
 
-def init_atomic_repo(repo, log_dir=None):
-    """If the atomic repo does not exist, initialize it."""
-    log_file = make_log_file(log_dir, 'init-atomic-repo')
+def init_ostree_repo(repo, log_dir=None):
+    """If the ostree repo does not exist, initialize it."""
+    log_file = make_log_file(log_dir, 'init-ostree-repo')
     if not os.path.isdir(repo):
         shortcuts.run(['ostree', 'init', '--repo={}'.format(repo), '--mode=archive-z2'],
                       logfile=log_file)
 
 
 def make_ostree_repo(repo, config, log_dir=None):
-    log_file = make_log_file(log_dir, 'create-atomic-repo')
+    log_file = make_log_file(log_dir, 'create-ostree-repo')
     shortcuts.run(['rpm-ostree', 'compose', 'tree', '--repo={}'.format(repo), config],
                   logfile=log_file)
 
@@ -68,9 +68,9 @@ def run(opts):
     workdir = tempfile.mkdtemp()
     repodir = prepare_config(workdir, opts.config_url, opts.config_branch,
                              opts.source_repo)
-    init_atomic_repo(opts.atomic_repo, log_dir=opts.log_dir)
+    init_ostree_repo(opts.ostree_repo, log_dir=opts.log_dir)
     treefile = os.path.join(repodir, opts.treefile)
-    make_ostree_repo(opts.atomic_repo, treefile, log_dir=opts.log_dir)
+    make_ostree_repo(opts.ostree_repo, treefile, log_dir=opts.log_dir)
     shutil.rmtree(workdir)
 
 
@@ -79,8 +79,8 @@ def main(args=None):
     parser.add_argument('--log-dir',
                         help='where to log output')
 
-    parser.add_argument('atomic_repo', metavar='ATOMIC_REPO',
-                        help='where to put the atomic repo')
+    parser.add_argument('ostree_repo', metavar='OSTREE_REPO',
+                        help='where to put the ostree repo')
     parser.add_argument('--treefile', required=True,
                         help='treefile for rpm-ostree')
     parser.add_argument('--config-url', required=True,
diff --git a/pungi/phases/__init__.py b/pungi/phases/__init__.py
index 343266ae..1dff888d 100644
--- a/pungi/phases/__init__.py
+++ b/pungi/phases/__init__.py
@@ -30,4 +30,4 @@ from test import TestPhase  # noqa
 from image_checksum import ImageChecksumPhase    # noqa
 from livemedia_phase import LiveMediaPhase  # noqa
 from ostree import OSTreePhase  # noqa
-from atomic_installer import AtomicInstallerPhase  # noqa
+from ostree_installer import OstreeInstallerPhase  # noqa
diff --git a/pungi/phases/ostree.py b/pungi/phases/ostree.py
index 79e58d4a..810716e2 100644
--- a/pungi/phases/ostree.py
+++ b/pungi/phases/ostree.py
@@ -41,16 +41,16 @@ class OSTreeThread(WorkerThread):
 
         msg = 'OSTree phase for variant %s, arch %s' % (variant.uid, arch)
         self.pool.log_info('[BEGIN] %s' % msg)
-        self.logdir = compose.paths.log.topdir('{}/atomic'.format(arch))
+        self.logdir = compose.paths.log.topdir('{}/ostree'.format(arch))
 
         source_variant = compose.variants[config['source_repo_from']]
         source_repo = translate_path(compose, compose.paths.compose.repository(arch, source_variant))
 
-        self._run_atomic_cmd(compose, variant, arch, config, source_repo)
+        self._run_ostree_cmd(compose, variant, arch, config, source_repo)
 
         self.pool.log_info('[DONE ] %s' % msg)
 
-    def _run_atomic_cmd(self, compose, variant, arch, config, source_repo):
+    def _run_ostree_cmd(self, compose, variant, arch, config, source_repo):
         cmd = [
             'pungi-make-ostree',
             '--log-dir={}'.format(self.logdir),
@@ -58,7 +58,7 @@ class OSTreeThread(WorkerThread):
             '--config-url={}'.format(config['config_url']),
             '--config-branch={}'.format(config.get('config_branch', 'master')),
             '--source-repo={}'.format(source_repo),
-            config['atomic_repo']
+            config['ostree_repo']
         ]
 
         runroot_channel = compose.conf.get("runroot_channel", None)
diff --git a/pungi/phases/atomic_installer.py b/pungi/phases/ostree_installer.py
similarity index 88%
rename from pungi/phases/atomic_installer.py
rename to pungi/phases/ostree_installer.py
index 3390a740..a781c4f9 100644
--- a/pungi/phases/atomic_installer.py
+++ b/pungi/phases/ostree_installer.py
@@ -11,48 +11,48 @@ from ..paths import translate_path
 from ..wrappers import kojiwrapper, iso, lorax
 
 
-class AtomicInstallerPhase(ConfigGuardedPhase):
-    name = 'atomic'
+class OstreeInstallerPhase(ConfigGuardedPhase):
+    name = 'ostree_installer'
 
     config_options = [
         {
-            "name": "atomic",
+            "name": "ostree_installer",
             "expected_types": [list],
             "optional": True,
         }
     ]
 
     def __init__(self, compose):
-        super(AtomicInstallerPhase, self).__init__(compose)
+        super(OstreeInstallerPhase, self).__init__(compose)
         self.pool = ThreadPool(logger=self.compose._logger)
 
     def run(self):
         for variant in self.compose.get_variants():
             for arch in variant.arches:
                 for conf in util.get_arch_variant_data(self.compose.conf, self.name, arch, variant):
-                    self.pool.add(AtomicInstallerThread(self.pool))
+                    self.pool.add(OstreeInstallerThread(self.pool))
                     self.pool.queue_put((self.compose, variant, arch, conf))
 
         self.pool.start()
 
 
-class AtomicInstallerThread(WorkerThread):
+class OstreeInstallerThread(WorkerThread):
     def process(self, item, num):
         compose, variant, arch, config = item
         self.num = num
-        with util.failable(compose, variant, arch, 'atomic_installer', 'Atomic'):
+        with util.failable(compose, variant, arch, 'ostree-installer', 'Ostree installer'):
             self.worker(compose, variant, arch, config)
 
     def worker(self, compose, variant, arch, config):
-        msg = 'Atomic phase for variant %s, arch %s' % (variant.uid, arch)
+        msg = 'Ostree phase for variant %s, arch %s' % (variant.uid, arch)
         self.pool.log_info('[BEGIN] %s' % msg)
-        self.logdir = compose.paths.log.topdir('{}/atomic'.format(arch))
+        self.logdir = compose.paths.log.topdir('{}/ostree'.format(arch))
 
         source_variant = compose.variants[config['source_repo_from']]
         source_repo = translate_path(
             compose, compose.paths.compose.repository(arch, source_variant, create_dir=False))
 
-        self._run_atomic_cmd(compose, variant, arch, config, source_repo)
+        self._run_ostree_cmd(compose, variant, arch, config, source_repo)
 
         disc_type = compose.conf.get('disc_types', {}).get('dvd', 'dvd')
         filename = compose.get_image_name(arch, variant, disc_type=disc_type,
@@ -100,7 +100,7 @@ class AtomicInstallerThread(WorkerThread):
             pass
         compose.im.add(variant.uid, arch, img)
 
-    def _run_atomic_cmd(self, compose, variant, arch, config, source_repo):
+    def _run_ostree_cmd(self, compose, variant, arch, config, source_repo):
         image_dir = compose.paths.compose.os_tree(arch, variant, create_dir=False)
         lorax_wrapper = lorax.LoraxWrapper()
         cmd = lorax_wrapper.get_lorax_cmd(
diff --git a/tests/test_atomic_installer_phase.py b/tests/test_ostree_installer_phase.py
similarity index 91%
rename from tests/test_atomic_installer_phase.py
rename to tests/test_ostree_installer_phase.py
index 33f49611..add45280 100644
--- a/tests/test_atomic_installer_phase.py
+++ b/tests/test_ostree_installer_phase.py
@@ -11,14 +11,14 @@ import sys
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
 
 from tests import helpers
-from pungi.phases import atomic_installer as atomic
+from pungi.phases import ostree_installer as ostree
 
 
-class AtomicInstallerPhaseTest(helpers.PungiTestCase):
+class OstreeInstallerPhaseTest(helpers.PungiTestCase):
 
     def test_validate(self):
         compose = helpers.DummyCompose(self.topdir, {
-            'atomic': [
+            'ostree_installer': [
                 ("^Atomic$", {
                     "x86_64": {
                         "source_repo_from": "Everything",
@@ -41,7 +41,7 @@ class AtomicInstallerPhaseTest(helpers.PungiTestCase):
             ]
         })
 
-        phase = atomic.AtomicInstallerPhase(compose)
+        phase = ostree.OstreeInstallerPhase(compose)
         try:
             phase.validate()
         except:
@@ -49,41 +49,41 @@ class AtomicInstallerPhaseTest(helpers.PungiTestCase):
 
     def test_validate_bad_conf(self):
         compose = helpers.DummyCompose(self.topdir, {
-            'atomic': 'yes please'
+            'ostree_installer': 'yes please'
         })
 
-        phase = atomic.AtomicInstallerPhase(compose)
+        phase = ostree.OstreeInstallerPhase(compose)
         with self.assertRaises(ValueError):
             phase.validate()
 
-    @mock.patch('pungi.phases.atomic_installer.ThreadPool')
+    @mock.patch('pungi.phases.ostree_installer.ThreadPool')
     def test_run(self, ThreadPool):
         cfg = mock.Mock()
         compose = helpers.DummyCompose(self.topdir, {
-            'atomic': [
+            'ostree_installer': [
                 ('^Everything$', {'x86_64': cfg})
             ]
         })
 
         pool = ThreadPool.return_value
 
-        phase = atomic.AtomicInstallerPhase(compose)
+        phase = ostree.OstreeInstallerPhase(compose)
         phase.run()
 
         self.assertEqual(len(pool.add.call_args_list), 1)
         self.assertEqual(pool.queue_put.call_args_list,
                          [mock.call((compose, compose.variants['Everything'], 'x86_64', cfg))])
 
-    @mock.patch('pungi.phases.atomic_installer.ThreadPool')
+    @mock.patch('pungi.phases.ostree_installer.ThreadPool')
     def test_skip_without_config(self, ThreadPool):
         compose = helpers.DummyCompose(self.topdir, {})
         compose.just_phases = None
         compose.skip_phases = []
-        phase = atomic.AtomicInstallerPhase(compose)
+        phase = ostree.OstreeInstallerPhase(compose)
         self.assertTrue(phase.skip())
 
 
-class AtomicThreadTest(helpers.PungiTestCase):
+class OstreeThreadTest(helpers.PungiTestCase):
 
     def assertImageAdded(self, compose, ImageCls, IsoWrapper):
         image = ImageCls.return_value
@@ -130,7 +130,7 @@ class AtomicThreadTest(helpers.PungiTestCase):
         get_mtime.return_value = 13579
         final_iso_path = self.topdir + '/compose/Everything/x86_64/iso/image-name'
 
-        t = atomic.AtomicInstallerThread(pool)
+        t = ostree.OstreeInstallerThread(pool)
 
         t.process((compose, compose.variants['Everything'], 'x86_64', cfg), 1)
 
@@ -149,7 +149,7 @@ class AtomicThreadTest(helpers.PungiTestCase):
                                     task_id=True, use_shell=True)])
         self.assertEqual(koji.run_runroot_cmd.call_args_list,
                          [mock.call(koji.get_runroot_cmd.return_value,
-                                    log_file=self.topdir + '/logs/x86_64/atomic/runroot.log')])
+                                    log_file=self.topdir + '/logs/x86_64/ostree/runroot.log')])
         self.assertEqual(link.call_args_list,
                          [mock.call(self.topdir + '/compose/Everything/x86_64/os/images/boot.iso',
                                     final_iso_path)])
@@ -201,7 +201,7 @@ class AtomicThreadTest(helpers.PungiTestCase):
         get_mtime.return_value = 13579
         final_iso_path = self.topdir + '/compose/Everything/x86_64/iso/image-name'
 
-        t = atomic.AtomicInstallerThread(pool)
+        t = ostree.OstreeInstallerThread(pool)
 
         t.process((compose, compose.variants['Everything'], 'x86_64', cfg), 1)
 
@@ -228,7 +228,7 @@ class AtomicThreadTest(helpers.PungiTestCase):
                        task_id=True, use_shell=True)])
         self.assertEqual(koji.run_runroot_cmd.call_args_list,
                          [mock.call(koji.get_runroot_cmd.return_value,
-                                    log_file=self.topdir + '/logs/x86_64/atomic/runroot.log')])
+                                    log_file=self.topdir + '/logs/x86_64/ostree/runroot.log')])
         self.assertEqual(link.call_args_list,
                          [mock.call(self.topdir + '/compose/Everything/x86_64/os/images/boot.iso',
                                     final_iso_path)])
@@ -253,7 +253,7 @@ class AtomicThreadTest(helpers.PungiTestCase):
             'koji_profile': 'koji',
             'runroot_tag': 'rrt',
             'failable_deliverables': [
-                ('^.+$', {'*': ['atomic_installer']})
+                ('^.+$', {'*': ['ostree-installer']})
             ],
         })
         pool = mock.Mock()
@@ -265,11 +265,11 @@ class AtomicThreadTest(helpers.PungiTestCase):
         koji = KojiWrapper.return_value
         koji.run_runroot_cmd.side_effect = helpers.boom
 
-        t = atomic.AtomicInstallerThread(pool)
+        t = ostree.OstreeInstallerThread(pool)
 
         t.process((compose, compose.variants['Everything'], 'x86_64', cfg), 1)
         compose.log_info.assert_has_calls([
-            mock.call('[FAIL] Atomic (variant Everything, arch x86_64) failed, but going on anyway.'),
+            mock.call('[FAIL] Ostree installer (variant Everything, arch x86_64) failed, but going on anyway.'),
             mock.call('BOOM')
         ])
 
@@ -287,7 +287,7 @@ class AtomicThreadTest(helpers.PungiTestCase):
             'koji_profile': 'koji',
             'runroot_tag': 'rrt',
             'failable_deliverables': [
-                ('^.+$', {'*': ['atomic_installer']})
+                ('^.+$', {'*': ['ostree-installer']})
             ],
         })
         pool = mock.Mock()
@@ -303,12 +303,12 @@ class AtomicThreadTest(helpers.PungiTestCase):
             'retcode': 1,
         }
 
-        t = atomic.AtomicInstallerThread(pool)
+        t = ostree.OstreeInstallerThread(pool)
 
         t.process((compose, compose.variants['Everything'], 'x86_64', cfg), 1)
         compose.log_info.assert_has_calls([
-            mock.call('[FAIL] Atomic (variant Everything, arch x86_64) failed, but going on anyway.'),
-            mock.call('Runroot task failed: 1234. See %s/logs/x86_64/atomic/runroot.log for more details.'
+            mock.call('[FAIL] Ostree installer (variant Everything, arch x86_64) failed, but going on anyway.'),
+            mock.call('Runroot task failed: 1234. See %s/logs/x86_64/ostree/runroot.log for more details.'
                       % self.topdir)
         ])
 
diff --git a/tests/test_ostree_phase.py b/tests/test_ostree_phase.py
index fe0036c8..9f8fdf11 100755
--- a/tests/test_ostree_phase.py
+++ b/tests/test_ostree_phase.py
@@ -24,7 +24,7 @@ class OSTreePhaseTest(helpers.PungiTestCase):
                         "treefile": "fedora-atomic-docker-host.json",
                         "config_url": "https://git.fedorahosted.org/git/fedora-atomic.git",
                         "source_repo_from": "Everything",
-                        "atomic_repo": "/mnt/koji/compose/atomic/Rawhide/"
+                        "ostree_repo": "/mnt/koji/compose/atomic/Rawhide/"
                     }
                 })
             ]
@@ -86,7 +86,7 @@ class OSTreeThreadTest(helpers.PungiTestCase):
             'config_url': 'https://git.fedorahosted.org/git/fedora-atomic.git',
             'config_branch': 'f24',
             'treefile': 'fedora-atomic-docker-host.json',
-            'atomic_repo': '/other/place/for/atomic'
+            'ostree_repo': '/other/place/for/atomic'
         }
         koji = KojiWrapper.return_value
         koji.run_runroot_cmd.return_value = {
@@ -102,7 +102,7 @@ class OSTreeThreadTest(helpers.PungiTestCase):
         self.assertEqual(koji.get_runroot_cmd.call_args_list,
                          [mock.call('rrt', 'x86_64',
                                     ['pungi-make-ostree',
-                                     '--log-dir={}/logs/x86_64/atomic'.format(self.topdir),
+                                     '--log-dir={}/logs/x86_64/ostree'.format(self.topdir),
                                      '--treefile=fedora-atomic-docker-host.json',
                                      '--config-url=https://git.fedorahosted.org/git/fedora-atomic.git',
                                      '--config-branch=f24',
@@ -113,7 +113,7 @@ class OSTreeThreadTest(helpers.PungiTestCase):
                                     task_id=True, use_shell=True)])
         self.assertEqual(koji.run_runroot_cmd.call_args_list,
                          [mock.call(koji.get_runroot_cmd.return_value,
-                                    log_file=self.topdir + '/logs/x86_64/atomic/runroot.log')])
+                                    log_file=self.topdir + '/logs/x86_64/ostree/runroot.log')])
 
 
 if __name__ == '__main__':
diff --git a/tests/test_atomic_script.py b/tests/test_ostree_script.py
similarity index 87%
rename from tests/test_atomic_script.py
rename to tests/test_ostree_script.py
index 4b0b3966..744af4de 100755
--- a/tests/test_atomic_script.py
+++ b/tests/test_ostree_script.py
@@ -12,7 +12,7 @@ sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
 sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'bin'))
 
 from tests import helpers
-from pungi import atomic
+from pungi import ostree
 
 
 class OstreeScriptTest(helpers.PungiTestCase):
@@ -28,13 +28,15 @@ class OstreeScriptTest(helpers.PungiTestCase):
         tempfile.return_value = self.topdir
         get_dir_from_scm.side_effect = self._dummy_config_repo
 
-        atomic.main([
+        repo = os.path.join(self.topdir, 'atomic')
+
+        ostree.main([
             '--log-dir={}'.format(os.path.join(self.topdir, 'logs', 'Atomic')),
             '--treefile={}'.format('fedora-atomic-docker-host.json'),
             '--config-url=https://git.fedorahosted.org/git/fedora-atomic.git',
             '--config-branch=f24',
             '--source-repo=https://kojipkgs.fedoraproject.org/repo',
-            os.path.join(self.topdir, 'atomic'),
+            repo,
         ])
 
         self.maxDiff = None
@@ -44,11 +46,11 @@ class OstreeScriptTest(helpers.PungiTestCase):
                                     self.topdir + '/config_repo')])
         self.assertItemsEqual(
             run.call_args_list,
-            [mock.call(['ostree', 'init', '--repo={}/atomic'.format(self.topdir), '--mode=archive-z2'],
-                       logfile=self.topdir + '/logs/Atomic/init-atomic-repo.log'),
-             mock.call(['rpm-ostree', 'compose', 'tree', '--repo={}/atomic'.format(self.topdir),
+            [mock.call(['ostree', 'init', '--repo={}'.format(repo), '--mode=archive-z2'],
+                       logfile=self.topdir + '/logs/Atomic/init-ostree-repo.log'),
+             mock.call(['rpm-ostree', 'compose', 'tree', '--repo={}'.format(repo),
                         self.topdir + '/config_repo/fedora-atomic-docker-host.json'],
-                       logfile=self.topdir + '/logs/Atomic/create-atomic-repo.log')])
+                       logfile=self.topdir + '/logs/Atomic/create-ostree-repo.log')])
 
 
 if __name__ == '__main__':