Merge ~chad.smith/cloud-init:ubuntu/bionic into cloud-init:ubuntu/bionic

[Chad Smith]

new upstream snapshot to pull in SRU blocker bug LP: #1780481 into bionic for release.

[Server Team CI bot (server-team-bot)]

PASSED: Continuous integration, rev:de0488f976acb3430b01b03b95a052dfd343a632
https://jenkins.ubuntu.com/server/job/cloud-init-ci/148/
Executed test runs:
    SUCCESS: Checkout
    SUCCESS: Unit & Style Tests
    SUCCESS: Ubuntu LTS: Build
    SUCCESS: Ubuntu LTS: Integration
    SUCCESS: MAAS Compatability Testing
    IN_PROGRESS: Declarative: Post Actions

Click here to trigger a rebuild:
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review: Approve (continuous-integration)

[Scott Moser (smoser)]

I think what we need to do here is new-upstream-snapshot, as I think you did.
but that should result in a new debian/changelog entry.
It seems that you just removed the entry that got uploaded to -proposed.

I think it makes sense to have one like below..
The point of interest being that we mark bug 1780481 fixed.
I just ran 'new-upstream-snapshot' and edited.

cloud-init (18.3-9-g2e62cb8a-0ubuntu1~18.04.1) bionic-proposed; urgency=medium

  * New upstream snapshot.
    - docs: note in rtd about avoiding /tmp when writing files
    - ubuntu,centos,debian: get_linux_distro to align with platform.dist
      (LP: #1780481)
    - Fix boothook docs on environment variable name (INSTANCE_I ->
      INSTANCE_ID) [Marc Tamsky]
    - update_metadata: a datasource can support network re-config every boot
    - tests: drop salt-minion integration test
    - Retry on failed import of gpg receive keys.
    - tools: Fix run-container when neither source or binary package requested.
    - docs: Fix a small spelling error. [Oz N Tiram]
    - tox: use simplestreams from git repository rather than bzr.

[Chad Smith (chad.smith)]

I mistakenly thought we consolidated all unreleased content, but since we've already published to -proposed, I guess this counts as 'released' and should be a different changelog entry.

[Server Team CI bot (server-team-bot)]

PASSED: Continuous integration, rev:fef8e403ba0712d9cbdc2b372e639868cdc38063
https://jenkins.ubuntu.com/server/job/cloud-init-ci/150/
Executed test runs:
    SUCCESS: Checkout
    SUCCESS: Unit & Style Tests
    SUCCESS: Ubuntu LTS: Build
    SUCCESS: Ubuntu LTS: Integration
    SUCCESS: MAAS Compatability Testing
    IN_PROGRESS: Declarative: Post Actions

Click here to trigger a rebuild:
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review: Approve (continuous-integration)

[Server Team CI bot (server-team-bot)]

PASSED: Continuous integration, rev:faacc49dce6ffbdab7f924c5fa3d61288c19bf90
https://jenkins.ubuntu.com/server/job/cloud-init-ci/153/
Executed test runs:
    SUCCESS: Checkout
    SUCCESS: Unit & Style Tests
    SUCCESS: Ubuntu LTS: Build
    SUCCESS: Ubuntu LTS: Integration
    SUCCESS: MAAS Compatability Testing
    IN_PROGRESS: Declarative: Post Actions

Click here to trigger a rebuild:
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review: Approve (continuous-integration)

[Server Team CI bot (server-team-bot)]

PASSED: Continuous integration, rev:d17cef57054aa76f14c3f1d63cd16b4e702939eb
https://jenkins.ubuntu.com/server/job/cloud-init-ci/155/
Executed test runs:
    SUCCESS: Checkout
    SUCCESS: Unit & Style Tests
    SUCCESS: Ubuntu LTS: Build
    SUCCESS: Ubuntu LTS: Integration
    SUCCESS: MAAS Compatability Testing
    IN_PROGRESS: Declarative: Post Actions

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review: Approve (continuous-integration)

diff --git a/cloudinit/config/cc_bootcmd.py b/cloudinit/config/cc_bootcmd.py
index db64f0a..6813f53 100644
--- a/cloudinit/config/cc_bootcmd.py
+++ b/cloudinit/config/cc_bootcmd.py
@@ -42,7 +42,13 @@ schema = {
 
         .. note::
             bootcmd should only be used for things that could not be done later
-            in the boot process."""),
+            in the boot process.
+
+        .. note::
+
+          when writing files, do not use /tmp dir as it races with
+          systemd-tmpfiles-clean LP: #1707222. Use /run/somedir instead.
+    """),
     'distros': distros,
     'examples': [dedent("""\
         bootcmd:
diff --git a/cloudinit/config/cc_runcmd.py b/cloudinit/config/cc_runcmd.py
index b6f6c80..1f75d6c 100644
--- a/cloudinit/config/cc_runcmd.py
+++ b/cloudinit/config/cc_runcmd.py
@@ -42,6 +42,11 @@ schema = {
 
           all commands must be proper yaml, so you have to quote any characters
           yaml would eat (':' can be problematic)
+
+        .. note::
+
+          when writing files, do not use /tmp dir as it races with
+          systemd-tmpfiles-clean LP: #1707222. Use /run/somedir instead.
     """),
     'distros': distros,
     'examples': [dedent("""\
diff --git a/cloudinit/config/cc_write_files.py b/cloudinit/config/cc_write_files.py
index 54ae3a6..31d1db6 100644
--- a/cloudinit/config/cc_write_files.py
+++ b/cloudinit/config/cc_write_files.py
@@ -15,9 +15,14 @@ binary gzip data can be specified and will be decoded before being written.
 
 .. note::
     if multiline data is provided, care should be taken to ensure that it
-    follows yaml formatting standargs. to specify binary data, use the yaml
+    follows yaml formatting standards. to specify binary data, use the yaml
     option ``!!binary``
 
+.. note::
+    Do not write files under /tmp during boot because of a race with
+    systemd-tmpfiles-clean that can cause temp files to get cleaned during
+    the early boot process. Use /run/somedir instead to avoid race LP:1707222.
+
 **Internal name:** ``cc_write_files``
 
 **Module frequency:** per instance
diff --git a/cloudinit/event.py b/cloudinit/event.py
new file mode 100644
index 0000000..f7b311f
--- /dev/null
+++ b/cloudinit/event.py
@@ -0,0 +1,17 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+
+"""Classes and functions related to event handling."""
+
+
+# Event types which can generate maintenance requests for cloud-init.
+class EventType(object):
+    BOOT = "System boot"
+    BOOT_NEW_INSTANCE = "New instance first boot"
+
+    # TODO: Cloud-init will grow support for the follow event types:
+    # UDEV
+    # METADATA_CHANGE
+    # USER_REQUEST
+
+
+# vi: ts=4 expandtab
diff --git a/cloudinit/gpg.py b/cloudinit/gpg.py
index d58d73e..7fe17a2 100644
--- a/cloudinit/gpg.py
+++ b/cloudinit/gpg.py
@@ -10,6 +10,8 @@
 from cloudinit import log as logging
 from cloudinit import util
 
+import time
+
 LOG = logging.getLogger(__name__)
 
 
@@ -25,16 +27,46 @@ def export_armour(key):
     return armour
 
 
-def recv_key(key, keyserver):
-    """Receive gpg key from the specified keyserver"""
-    LOG.debug('Receive gpg key "%s"', key)
-    try:
-        util.subp(["gpg", "--keyserver", keyserver, "--recv", key],
-                  capture=True)
-    except util.ProcessExecutionError as error:
-        raise ValueError(('Failed to import key "%s" '
-                          'from server "%s" - error %s') %
-                         (key, keyserver, error))
+def recv_key(key, keyserver, retries=(1, 1)):
+    """Receive gpg key from the specified keyserver.
+
+    Retries are done by default because keyservers can be unreliable.
+    Additionally, there is no way to determine the difference between
+    a non-existant key and a failure.  In both cases gpg (at least 2.2.4)
+    exits with status 2 and stderr: "keyserver receive failed: No data"
+    It is assumed that a key provided to cloud-init exists on the keyserver
+    so re-trying makes better sense than failing.
+
+    @param key: a string key fingerprint (as passed to gpg --recv-keys).
+    @param keyserver: the keyserver to request keys from.
+    @param retries: an iterable of sleep lengths for retries.
+                    Use None to indicate no retries."""
+    LOG.debug("Importing key '%s' from keyserver '%s'", key, keyserver)
+    cmd = ["gpg", "--keyserver=%s" % keyserver, "--recv-keys", key]
+    if retries is None:
+        retries = []
+    trynum = 0
+    error = None
+    sleeps = iter(retries)
+    while True:
+        trynum += 1
+        try:
+            util.subp(cmd, capture=True)
+            LOG.debug("Imported key '%s' from keyserver '%s' on try %d",
+                      key, keyserver, trynum)
+            return
+        except util.ProcessExecutionError as e:
+            error = e
+        try:
+            naplen = next(sleeps)
+            LOG.debug(
+                "Import failed with exit code %d, will try again in %ss",
+                error.exit_code, naplen)
+            time.sleep(naplen)
+        except StopIteration:
+            raise ValueError(
+                ("Failed to import key '%s' from keyserver '%s' "
+                 "after %d tries: %s") % (key, keyserver, trynum, error))
 
 
 def delete_key(key):
diff --git a/cloudinit/sources/__init__.py b/cloudinit/sources/__init__.py
index 90d7457..f424316 100644
--- a/cloudinit/sources/__init__.py
+++ b/cloudinit/sources/__init__.py
@@ -19,6 +19,7 @@ from cloudinit.atomic_helper import write_json
 from cloudinit import importer
 from cloudinit import log as logging
 from cloudinit import net
+from cloudinit.event import EventType
 from cloudinit import type_utils
 from cloudinit import user_data as ud
 from cloudinit import util
@@ -102,6 +103,25 @@ class DataSource(object):
     url_timeout = 10    # timeout for each metadata url read attempt
     url_retries = 5     # number of times to retry url upon 404
 
+    # The datasource defines a list of supported EventTypes during which
+    # the datasource can react to changes in metadata and regenerate
+    # network configuration on metadata changes.
+    # A datasource which supports writing network config on each system boot
+    # would set update_events = {'network': [EventType.BOOT]}
+
+    # Default: generate network config on new instance id (first boot).
+    update_events = {'network': [EventType.BOOT_NEW_INSTANCE]}
+
+    # N-tuple listing default values for any metadata-related class
+    # attributes cached on an instance by a process_data runs. These attribute
+    # values are reset via clear_cached_attrs during any update_metadata call.
+    cached_attr_defaults = (
+        ('ec2_metadata', UNSET), ('network_json', UNSET),
+        ('metadata', {}), ('userdata', None), ('userdata_raw', None),
+        ('vendordata', None), ('vendordata_raw', None))
+
+    _dirty_cache = False
+
     def __init__(self, sys_cfg, distro, paths, ud_proc=None):
         self.sys_cfg = sys_cfg
         self.distro = distro
@@ -134,11 +154,31 @@ class DataSource(object):
             'region': self.region,
             'availability-zone': self.availability_zone}}
 
+    def clear_cached_attrs(self, attr_defaults=()):
+        """Reset any cached metadata attributes to datasource defaults.
+
+        @param attr_defaults: Optional tuple of (attr, value) pairs to
+           set instead of cached_attr_defaults.
+        """
+        if not self._dirty_cache:
+            return
+        if attr_defaults:
+            attr_values = attr_defaults
+        else:
+            attr_values = self.cached_attr_defaults
+
+        for attribute, value in attr_values:
+            if hasattr(self, attribute):
+                setattr(self, attribute, value)
+        if not attr_defaults:
+            self._dirty_cache = False
+
     def get_data(self):
         """Datasources implement _get_data to setup metadata and userdata_raw.
 
         Minimally, the datasource should return a boolean True on success.
         """
+        self._dirty_cache = True
         return_value = self._get_data()
         json_file = os.path.join(self.paths.run_dir, INSTANCE_JSON_FILE)
         if not return_value:
@@ -174,6 +214,7 @@ class DataSource(object):
         return return_value
 
     def _get_data(self):
+        """Walk metadata sources, process crawled data and save attributes."""
         raise NotImplementedError(
             'Subclasses of DataSource must implement _get_data which'
             ' sets self.metadata, vendordata_raw and userdata_raw.')
@@ -416,6 +457,41 @@ class DataSource(object):
     def get_package_mirror_info(self):
         return self.distro.get_package_mirror_info(data_source=self)
 
+    def update_metadata(self, source_event_types):
+        """Refresh cached metadata if the datasource supports this event.
+
+        The datasource has a list of update_events which
+        trigger refreshing all cached metadata as well as refreshing the
+        network configuration.
+
+        @param source_event_types: List of EventTypes which may trigger a
+            metadata update.
+
+        @return True if the datasource did successfully update cached metadata
+            due to source_event_type.
+        """
+        supported_events = {}
+        for event in source_event_types:
+            for update_scope, update_events in self.update_events.items():
+                if event in update_events:
+                    if not supported_events.get(update_scope):
+                        supported_events[update_scope] = []
+                    supported_events[update_scope].append(event)
+        for scope, matched_events in supported_events.items():
+            LOG.debug(
+                "Update datasource metadata and %s config due to events: %s",
+                scope, ', '.join(matched_events))
+            # Each datasource has a cached config property which needs clearing
+            # Once cleared that config property will be regenerated from
+            # current metadata.
+            self.clear_cached_attrs((('_%s_config' % scope, UNSET),))
+        if supported_events:
+            self.clear_cached_attrs()
+            result = self.get_data()
+            if result:
+                return True
+        return False
+
     def check_instance_id(self, sys_cfg):
         # quickly (local check only) if self.instance_id is still
         return False
@@ -520,7 +596,7 @@ def find_source(sys_cfg, distro, paths, ds_deps, cfg_list, pkg_list, reporter):
             with myrep:
                 LOG.debug("Seeing if we can get any data from %s", cls)
                 s = cls(sys_cfg, distro, paths)
-                if s.get_data():
+                if s.update_metadata([EventType.BOOT_NEW_INSTANCE]):
                     myrep.message = "found %s data from %s" % (mode, name)
                     return (s, type_utils.obj_name(cls))
         except Exception:
diff --git a/cloudinit/sources/tests/test_init.py b/cloudinit/sources/tests/test_init.py
index d5bc98a..dcd221b 100644
--- a/cloudinit/sources/tests/test_init.py
+++ b/cloudinit/sources/tests/test_init.py
@@ -5,10 +5,11 @@ import os
 import six
 import stat
 
+from cloudinit.event import EventType
 from cloudinit.helpers import Paths
 from cloudinit import importer
 from cloudinit.sources import (
-    INSTANCE_JSON_FILE, DataSource)
+    INSTANCE_JSON_FILE, DataSource, UNSET)
 from cloudinit.tests.helpers import CiTestCase, skipIf, mock
 from cloudinit.user_data import UserDataProcessor
 from cloudinit import util
@@ -381,3 +382,83 @@ class TestDataSource(CiTestCase):
                     get_args(grandchild.get_hostname),  # pylint: disable=W1505
                     '%s does not implement DataSource.get_hostname params'
                     % grandchild)
+
+    def test_clear_cached_attrs_resets_cached_attr_class_attributes(self):
+        """Class attributes listed in cached_attr_defaults are reset."""
+        count = 0
+        # Setup values for all cached class attributes
+        for attr, value in self.datasource.cached_attr_defaults:
+            setattr(self.datasource, attr, count)
+            count += 1
+        self.datasource._dirty_cache = True
+        self.datasource.clear_cached_attrs()
+        for attr, value in self.datasource.cached_attr_defaults:
+            self.assertEqual(value, getattr(self.datasource, attr))
+
+    def test_clear_cached_attrs_noops_on_clean_cache(self):
+        """Class attributes listed in cached_attr_defaults are reset."""
+        count = 0
+        # Setup values for all cached class attributes
+        for attr, _ in self.datasource.cached_attr_defaults:
+            setattr(self.datasource, attr, count)
+            count += 1
+        self.datasource._dirty_cache = False   # Fake clean cache
+        self.datasource.clear_cached_attrs()
+        count = 0
+        for attr, _ in self.datasource.cached_attr_defaults:
+            self.assertEqual(count, getattr(self.datasource, attr))
+            count += 1
+
+    def test_clear_cached_attrs_skips_non_attr_class_attributes(self):
+        """Skip any cached_attr_defaults which aren't class attributes."""
+        self.datasource._dirty_cache = True
+        self.datasource.clear_cached_attrs()
+        for attr in ('ec2_metadata', 'network_json'):
+            self.assertFalse(hasattr(self.datasource, attr))
+
+    def test_clear_cached_attrs_of_custom_attrs(self):
+        """Custom attr_values can be passed to clear_cached_attrs."""
+        self.datasource._dirty_cache = True
+        cached_attr_name = self.datasource.cached_attr_defaults[0][0]
+        setattr(self.datasource, cached_attr_name, 'himom')
+        self.datasource.myattr = 'orig'
+        self.datasource.clear_cached_attrs(
+            attr_defaults=(('myattr', 'updated'),))
+        self.assertEqual('himom', getattr(self.datasource, cached_attr_name))
+        self.assertEqual('updated', self.datasource.myattr)
+
+    def test_update_metadata_only_acts_on_supported_update_events(self):
+        """update_metadata won't get_data on unsupported update events."""
+        self.assertEqual(
+            {'network': [EventType.BOOT_NEW_INSTANCE]},
+            self.datasource.update_events)
+
+        def fake_get_data():
+            raise Exception('get_data should not be called')
+
+        self.datasource.get_data = fake_get_data
+        self.assertFalse(
+            self.datasource.update_metadata(
+                source_event_types=[EventType.BOOT]))
+
+    def test_update_metadata_returns_true_on_supported_update_event(self):
+        """update_metadata returns get_data response on supported events."""
+
+        def fake_get_data():
+            return True
+
+        self.datasource.get_data = fake_get_data
+        self.datasource._network_config = 'something'
+        self.datasource._dirty_cache = True
+        self.assertTrue(
+            self.datasource.update_metadata(
+                source_event_types=[
+                    EventType.BOOT, EventType.BOOT_NEW_INSTANCE]))
+        self.assertEqual(UNSET, self.datasource._network_config)
+        self.assertIn(
+            "DEBUG: Update datasource metadata and network config due to"
+            " events: New instance first boot",
+            self.logs.getvalue())
+
+
+# vi: ts=4 expandtab
diff --git a/cloudinit/stages.py b/cloudinit/stages.py
index 286607b..c132b57 100644
--- a/cloudinit/stages.py
+++ b/cloudinit/stages.py
@@ -22,6 +22,8 @@ from cloudinit.handlers import cloud_config as cc_part
 from cloudinit.handlers import shell_script as ss_part
 from cloudinit.handlers import upstart_job as up_part
 
+from cloudinit.event import EventType
+
 from cloudinit import cloud
 from cloudinit import config
 from cloudinit import distros
@@ -648,10 +650,14 @@ class Init(object):
         except Exception as e:
             LOG.warning("Failed to rename devices: %s", e)
 
-        if (self.datasource is not NULL_DATA_SOURCE and
-                not self.is_new_instance()):
-            LOG.debug("not a new instance. network config is not applied.")
-            return
+        if self.datasource is not NULL_DATA_SOURCE:
+            if not self.is_new_instance():
+                if not self.datasource.update_metadata([EventType.BOOT]):
+                    LOG.debug(
+                        "No network config applied. Neither a new instance"
+                        " nor datasource network update on '%s' event",
+                        EventType.BOOT)
+                    return
 
         LOG.info("Applying network configuration from %s bringup=%s: %s",
                  src, bring_up, netcfg)
diff --git a/cloudinit/tests/test_gpg.py b/cloudinit/tests/test_gpg.py
new file mode 100644
index 0000000..0562b96
--- /dev/null
+++ b/cloudinit/tests/test_gpg.py
@@ -0,0 +1,54 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+"""Test gpg module."""
+
+from cloudinit import gpg
+from cloudinit import util
+from cloudinit.tests.helpers import CiTestCase
+
+import mock
+
+
[e-mail]("cloudinit.gpg.time.sleep")
[e-mail]("cloudinit.gpg.util.subp")
+class TestReceiveKeys(CiTestCase):
+    """Test the recv_key method."""
+
+    def test_retries_on_subp_exc(self, m_subp, m_sleep):
+        """retry should be done on gpg receive keys failure."""
+        retries = (1, 2, 4)
+        my_exc = util.ProcessExecutionError(
+            stdout='', stderr='', exit_code=2, cmd=['mycmd'])
+        m_subp.side_effect = (my_exc, my_exc, ('', ''))
+        gpg.recv_key("ABCD", "keyserver.example.com", retries=retries)
+        self.assertEqual([mock.call(1), mock.call(2)], m_sleep.call_args_list)
+
+    def test_raises_error_after_retries(self, m_subp, m_sleep):
+        """If the final run fails, error should be raised."""
+        naplen = 1
+        keyid, keyserver = ("ABCD", "keyserver.example.com")
+        m_subp.side_effect = util.ProcessExecutionError(
+            stdout='', stderr='', exit_code=2, cmd=['mycmd'])
+        with self.assertRaises(ValueError) as rcm:
+            gpg.recv_key(keyid, keyserver, retries=(naplen,))
+        self.assertIn(keyid, str(rcm.exception))
+        self.assertIn(keyserver, str(rcm.exception))
+        m_sleep.assert_called_with(naplen)
+
+    def test_no_retries_on_none(self, m_subp, m_sleep):
+        """retry should not be done if retries is None."""
+        m_subp.side_effect = util.ProcessExecutionError(
+            stdout='', stderr='', exit_code=2, cmd=['mycmd'])
+        with self.assertRaises(ValueError):
+            gpg.recv_key("ABCD", "keyserver.example.com", retries=None)
+        m_sleep.assert_not_called()
+
+    def test_expected_gpg_command(self, m_subp, m_sleep):
+        """Verify gpg is called with expected args."""
+        key, keyserver = ("DEADBEEF", "keyserver.example.com")
+        retries = (1, 2, 4)
+        m_subp.return_value = ('', '')
+        gpg.recv_key(key, keyserver, retries=retries)
+        m_subp.assert_called_once_with(
+            ['gpg', '--keyserver=%s' % keyserver, '--recv-keys', key],
+            capture=True)
+        m_sleep.assert_not_called()
diff --git a/cloudinit/tests/test_stages.py b/cloudinit/tests/test_stages.py
new file mode 100644
index 0000000..94b6b25
--- /dev/null
+++ b/cloudinit/tests/test_stages.py
@@ -0,0 +1,231 @@
+# This file is part of cloud-init. See LICENSE file for license information.
+
+"""Tests related to cloudinit.stages module."""
+
+import os
+
+from cloudinit import stages
+from cloudinit import sources
+
+from cloudinit.event import EventType
+from cloudinit.util import write_file
+
+from cloudinit.tests.helpers import CiTestCase, mock
+
+TEST_INSTANCE_ID = 'i-testing'
+
+
+class FakeDataSource(sources.DataSource):
+
+    def __init__(self, paths=None, userdata=None, vendordata=None,
+                 network_config=''):
+        super(FakeDataSource, self).__init__({}, None, paths=paths)
+        self.metadata = {'instance-id': TEST_INSTANCE_ID}
+        self.userdata_raw = userdata
+        self.vendordata_raw = vendordata
+        self._network_config = None
+        if network_config:   # Permit for None value to setup attribute
+            self._network_config = network_config
+
+    @property
+    def network_config(self):
+        return self._network_config
+
+    def _get_data(self):
+        return True
+
+
+class TestInit(CiTestCase):
+    with_logs = True
+
+    def setUp(self):
+        super(TestInit, self).setUp()
+        self.tmpdir = self.tmp_dir()
+        self.init = stages.Init()
+        # Setup fake Paths for Init to reference
+        self.init._cfg = {'system_info': {
+            'distro': 'ubuntu', 'paths': {'cloud_dir': self.tmpdir,
+                                          'run_dir': self.tmpdir}}}
+        self.init.datasource = FakeDataSource(paths=self.init.paths)
+
+    def test_wb__find_networking_config_disabled(self):
+        """find_networking_config returns no config when disabled."""
+        disable_file = os.path.join(
+            self.init.paths.get_cpath('data'), 'upgraded-network')
+        write_file(disable_file, '')
+        self.assertEqual(
+            (None, disable_file),
+            self.init._find_networking_config())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_disabled_by_kernel(self, m_cmdline):
+        """find_networking_config returns when disabled by kernel cmdline."""
+        m_cmdline.return_value = {'config': 'disabled'}
+        self.assertEqual(
+            (None, 'cmdline'),
+            self.init._find_networking_config())
+        self.assertEqual('DEBUG: network config disabled by cmdline\n',
+                         self.logs.getvalue())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_disabled_by_datasrc(self, m_cmdline):
+        """find_networking_config returns when disabled by datasource cfg."""
+        m_cmdline.return_value = {}  # Kernel doesn't disable networking
+        self.init._cfg = {'system_info': {'paths': {'cloud_dir': self.tmpdir}},
+                          'network': {}}  # system config doesn't disable
+
+        self.init.datasource = FakeDataSource(
+            network_config={'config': 'disabled'})
+        self.assertEqual(
+            (None, 'ds'),
+            self.init._find_networking_config())
+        self.assertEqual('DEBUG: network config disabled by ds\n',
+                         self.logs.getvalue())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_disabled_by_sysconfig(self, m_cmdline):
+        """find_networking_config returns when disabled by system config."""
+        m_cmdline.return_value = {}  # Kernel doesn't disable networking
+        self.init._cfg = {'system_info': {'paths': {'cloud_dir': self.tmpdir}},
+                          'network': {'config': 'disabled'}}
+        self.assertEqual(
+            (None, 'system_cfg'),
+            self.init._find_networking_config())
+        self.assertEqual('DEBUG: network config disabled by system_cfg\n',
+                         self.logs.getvalue())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_returns_kernel(self, m_cmdline):
+        """find_networking_config returns kernel cmdline config if present."""
+        expected_cfg = {'config': ['fakekernel']}
+        m_cmdline.return_value = expected_cfg
+        self.init._cfg = {'system_info': {'paths': {'cloud_dir': self.tmpdir}},
+                          'network': {'config': ['fakesys_config']}}
+        self.init.datasource = FakeDataSource(
+            network_config={'config': ['fakedatasource']})
+        self.assertEqual(
+            (expected_cfg, 'cmdline'),
+            self.init._find_networking_config())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_returns_system_cfg(self, m_cmdline):
+        """find_networking_config returns system config when present."""
+        m_cmdline.return_value = {}  # No kernel network config
+        expected_cfg = {'config': ['fakesys_config']}
+        self.init._cfg = {'system_info': {'paths': {'cloud_dir': self.tmpdir}},
+                          'network': expected_cfg}
+        self.init.datasource = FakeDataSource(
+            network_config={'config': ['fakedatasource']})
+        self.assertEqual(
+            (expected_cfg, 'system_cfg'),
+            self.init._find_networking_config())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_returns_datasrc_cfg(self, m_cmdline):
+        """find_networking_config returns datasource net config if present."""
+        m_cmdline.return_value = {}  # No kernel network config
+        # No system config for network in setUp
+        expected_cfg = {'config': ['fakedatasource']}
+        self.init.datasource = FakeDataSource(network_config=expected_cfg)
+        self.assertEqual(
+            (expected_cfg, 'ds'),
+            self.init._find_networking_config())
+
+    @mock.patch('cloudinit.stages.cmdline.read_kernel_cmdline_config')
+    def test_wb__find_networking_config_returns_fallback(self, m_cmdline):
+        """find_networking_config returns fallback config if not defined."""
+        m_cmdline.return_value = {}  # Kernel doesn't disable networking
+        # Neither datasource nor system_info disable or provide network
+
+        fake_cfg = {'config': [{'type': 'physical', 'name': 'eth9'}],
+                    'version': 1}
+
+        def fake_generate_fallback():
+            return fake_cfg
+
+        # Monkey patch distro which gets cached on self.init
+        distro = self.init.distro
+        distro.generate_fallback_config = fake_generate_fallback
+        self.assertEqual(
+            (fake_cfg, 'fallback'),
+            self.init._find_networking_config())
+        self.assertNotIn('network config disabled', self.logs.getvalue())
+
+    def test_apply_network_config_disabled(self):
+        """Log when network is disabled by upgraded-network."""
+        disable_file = os.path.join(
+            self.init.paths.get_cpath('data'), 'upgraded-network')
+
+        def fake_network_config():
+            return (None, disable_file)
+
+        self.init._find_networking_config = fake_network_config
+
+        self.init.apply_network_config(True)
+        self.assertIn(
+            'INFO: network config is disabled by %s' % disable_file,
+            self.logs.getvalue())
+
+    @mock.patch('cloudinit.distros.ubuntu.Distro')
+    def test_apply_network_on_new_instance(self, m_ubuntu):
+        """Call distro apply_network_config methods on is_new_instance."""
+        net_cfg = {
+            'version': 1, 'config': [
+                {'subnets': [{'type': 'dhcp'}], 'type': 'physical',
+                 'name': 'eth9', 'mac_address': '42:42:42:42:42:42'}]}
+
+        def fake_network_config():
+            return net_cfg, 'fallback'
+
+        self.init._find_networking_config = fake_network_config
+        self.init.apply_network_config(True)
+        self.init.distro.apply_network_config_names.assert_called_with(net_cfg)
+        self.init.distro.apply_network_config.assert_called_with(
+            net_cfg, bring_up=True)
+
+    @mock.patch('cloudinit.distros.ubuntu.Distro')
+    def test_apply_network_on_same_instance_id(self, m_ubuntu):
+        """Only call distro.apply_network_config_names on same instance id."""
+        old_instance_id = os.path.join(
+            self.init.paths.get_cpath('data'), 'instance-id')
+        write_file(old_instance_id, TEST_INSTANCE_ID)
+        net_cfg = {
+            'version': 1, 'config': [
+                {'subnets': [{'type': 'dhcp'}], 'type': 'physical',
+                 'name': 'eth9', 'mac_address': '42:42:42:42:42:42'}]}
+
+        def fake_network_config():
+            return net_cfg, 'fallback'
+
+        self.init._find_networking_config = fake_network_config
+        self.init.apply_network_config(True)
+        self.init.distro.apply_network_config_names.assert_called_with(net_cfg)
+        self.init.distro.apply_network_config.assert_not_called()
+        self.assertIn(
+            'No network config applied. Neither a new instance'
+            " nor datasource network update on '%s' event" % EventType.BOOT,
+            self.logs.getvalue())
+
+    @mock.patch('cloudinit.distros.ubuntu.Distro')
+    def test_apply_network_on_datasource_allowed_event(self, m_ubuntu):
+        """Apply network if datasource.update_metadata permits BOOT event."""
+        old_instance_id = os.path.join(
+            self.init.paths.get_cpath('data'), 'instance-id')
+        write_file(old_instance_id, TEST_INSTANCE_ID)
+        net_cfg = {
+            'version': 1, 'config': [
+                {'subnets': [{'type': 'dhcp'}], 'type': 'physical',
+                 'name': 'eth9', 'mac_address': '42:42:42:42:42:42'}]}
+
+        def fake_network_config():
+            return net_cfg, 'fallback'
+
+        self.init._find_networking_config = fake_network_config
+        self.init.datasource = FakeDataSource(paths=self.init.paths)
+        self.init.datasource.update_events = {'network': [EventType.BOOT]}
+        self.init.apply_network_config(True)
+        self.init.distro.apply_network_config_names.assert_called_with(net_cfg)
+        self.init.distro.apply_network_config.assert_called_with(
+            net_cfg, bring_up=True)
+
+# vi: ts=4 expandtab
diff --git a/cloudinit/tests/test_util.py b/cloudinit/tests/test_util.py
index 17853fc..6a31e50 100644
--- a/cloudinit/tests/test_util.py
+++ b/cloudinit/tests/test_util.py
@@ -26,8 +26,51 @@ OS_RELEASE_SLES = dedent("""\
     CPE_NAME="cpe:/o:suse:sles:12:sp3"\n
 """)
 
+OS_RELEASE_OPENSUSE = dedent("""\
+NAME="openSUSE Leap"
+VERSION="42.3"
+ID=opensuse
+ID_LIKE="suse"
+VERSION_ID="42.3"
+PRETTY_NAME="openSUSE Leap 42.3"
+ANSI_COLOR="0;32"
+CPE_NAME="cpe:/o:opensuse:leap:42.3"
+BUG_REPORT_URL="https://bugs.opensuse.org"
+HOME_URL="https://www.opensuse.org/"
+""")
+
+OS_RELEASE_CENTOS = dedent("""\
+    NAME="CentOS Linux"
+    VERSION="7 (Core)"
+    ID="centos"
+    ID_LIKE="rhel fedora"
+    VERSION_ID="7"
+    PRETTY_NAME="CentOS Linux 7 (Core)"
+    ANSI_COLOR="0;31"
+    CPE_NAME="cpe:/o:centos:centos:7"
+    HOME_URL="https://www.centos.org/"
+    BUG_REPORT_URL="https://bugs.centos.org/"
+
+    CENTOS_MANTISBT_PROJECT="CentOS-7"
+    CENTOS_MANTISBT_PROJECT_VERSION="7"
+    REDHAT_SUPPORT_PRODUCT="centos"
+    REDHAT_SUPPORT_PRODUCT_VERSION="7"
+""")
+
+OS_RELEASE_DEBIAN = dedent("""\
+    PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
+    NAME="Debian GNU/Linux"
+    VERSION_ID="9"
+    VERSION="9 (stretch)"
+    ID=debian
+    HOME_URL="https://www.debian.org/"
+    SUPPORT_URL="https://www.debian.org/support"
+    BUG_REPORT_URL="https://bugs.debian.org/"
+""")
+
 OS_RELEASE_UBUNTU = dedent("""\
     NAME="Ubuntu"\n
+    # comment test
     VERSION="16.04.3 LTS (Xenial Xerus)"\n
     ID=ubuntu\n
     ID_LIKE=debian\n
@@ -310,7 +353,31 @@ class TestGetLinuxDistro(CiTestCase):
         m_os_release.return_value = OS_RELEASE_UBUNTU
         m_path_exists.side_effect = TestGetLinuxDistro.os_release_exists
         dist = util.get_linux_distro()
-        self.assertEqual(('ubuntu', '16.04', platform.machine()), dist)
+        self.assertEqual(('ubuntu', '16.04', 'xenial'), dist)
+
+    @mock.patch('cloudinit.util.load_file')
+    def test_get_linux_centos(self, m_os_release, m_path_exists):
+        """Verify we get the correct name and release name on CentOS."""
+        m_os_release.return_value = OS_RELEASE_CENTOS
+        m_path_exists.side_effect = TestGetLinuxDistro.os_release_exists
+        dist = util.get_linux_distro()
+        self.assertEqual(('centos', '7', 'Core'), dist)
+
+    @mock.patch('cloudinit.util.load_file')
+    def test_get_linux_debian(self, m_os_release, m_path_exists):
+        """Verify we get the correct name and release name on Debian."""
+        m_os_release.return_value = OS_RELEASE_DEBIAN
+        m_path_exists.side_effect = TestGetLinuxDistro.os_release_exists
+        dist = util.get_linux_distro()
+        self.assertEqual(('debian', '9', 'stretch'), dist)
+
+    @mock.patch('cloudinit.util.load_file')
+    def test_get_linux_opensuse(self, m_os_release, m_path_exists):
+        """Verify we get the correct name and machine arch on OpenSUSE."""
+        m_os_release.return_value = OS_RELEASE_OPENSUSE
+        m_path_exists.side_effect = TestGetLinuxDistro.os_release_exists
+        dist = util.get_linux_distro()
+        self.assertEqual(('opensuse', '42.3', platform.machine()), dist)
 
     @mock.patch('platform.dist')
     def test_get_linux_distro_no_data(self, m_platform_dist, m_path_exists):
diff --git a/cloudinit/util.py b/cloudinit/util.py
index 6da9511..d0b0e90 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -579,16 +579,24 @@ def get_cfg_option_int(yobj, key, default=0):
 def get_linux_distro():
     distro_name = ''
     distro_version = ''
+    flavor = ''
     if os.path.exists('/etc/os-release'):
-        os_release = load_file('/etc/os-release')
-        for line in os_release.splitlines():
-            if line.strip().startswith('ID='):
-                distro_name = line.split('=')[-1]
-                distro_name = distro_name.replace('"', '')
-            if line.strip().startswith('VERSION_ID='):
-                # Lets hope for the best that distros stay consistent ;)
-                distro_version = line.split('=')[-1]
-                distro_version = distro_version.replace('"', '')
+        os_release = load_shell_content(load_file('/etc/os-release'))
+        distro_name = os_release.get('ID', '')
+        distro_version = os_release.get('VERSION_ID', '')
+        if 'sles' in distro_name or 'suse' in distro_name:
+            # RELEASE_BLOCKER: We will drop this sles ivergent behavior in
+            # before 18.4 so that get_linux_distro returns a named tuple
+            # which will include both version codename and architecture
+            # on all distributions.
+            flavor = platform.machine()
+        else:
+            flavor = os_release.get('VERSION_CODENAME', '')
+            if not flavor:
+                match = re.match(r'[^ ]+ \((?P<codename>[^)]+)\)',
+                                 os_release.get('VERSION'))
+                if match:
+                    flavor = match.groupdict()['codename']
     else:
         dist = ('', '', '')
         try:
@@ -606,7 +614,7 @@ def get_linux_distro():
                             'expansion may have unexpected results')
         return dist
 
-    return (distro_name, distro_version, platform.machine())
+    return (distro_name, distro_version, flavor)
 
 
 def system_info():
diff --git a/debian/changelog b/debian/changelog
index bc83f51..726e06f 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,20 @@
+cloud-init (18.3-9-g2e62cb8a-0ubuntu1~18.04.1) bionic-proposed; urgency=medium
+
+  * New upstream snapshot.
+    - docs: note in rtd about avoiding /tmp when writing files
+    - ubuntu,centos,debian: get_linux_distro to align with platform.dist
+      (LP: #1780481)
+    - Fix boothook docs on environment variable name (INSTANCE_I ->
+      INSTANCE_ID) [Marc Tamsky]
+    - update_metadata: a datasource can support network re-config every boot
+    - tests: drop salt-minion integration test
+    - Retry on failed import of gpg receive keys.
+    - tools: Fix run-container when neither source or binary package requested.
+    - docs: Fix a small spelling error. [Oz N Tiram]
+    - tox: use simplestreams from git repository rather than bzr.
+
+ -- Chad Smith <[e-mail]>  Mon, 09 Jul 2018 15:31:12 -0600
+
 cloud-init (18.3-0ubuntu1~18.04.1) bionic-proposed; urgency=medium
 
   * debian/rules: update version.version_string to contain packaged version.
diff --git a/doc/examples/cloud-config-run-cmds.txt b/doc/examples/cloud-config-run-cmds.txt
index 3bb0686..002398f 100644
--- a/doc/examples/cloud-config-run-cmds.txt
+++ b/doc/examples/cloud-config-run-cmds.txt
@@ -18,5 +18,8 @@ runcmd:
  - [ sh, -xc, "echo $(date) ': hello world!'" ]
  - [ sh, -c, echo "=========hello world'=========" ]
  - ls -l /root
- - [ wget, "http://slashdot.org", -O, /tmp/index.html ]
+ # Note: Don't write files to /tmp from cloud-init use /run/somedir instead.
+ # Early boot environments can race systemd-tmpfiles-clean LP: #1707222.
+ - mkdir /run/mydir
+ - [ wget, "http://slashdot.org", -O, /run/mydir/index.html ]
 
diff --git a/doc/examples/cloud-config.txt b/doc/examples/cloud-config.txt
index bd84c64..774f66b 100644
--- a/doc/examples/cloud-config.txt
+++ b/doc/examples/cloud-config.txt
@@ -127,7 +127,10 @@ runcmd:
  - [ sh, -xc, "echo $(date) ': hello world!'" ]
  - [ sh, -c, echo "=========hello world'=========" ]
  - ls -l /root
- - [ wget, "http://slashdot.org", -O, /tmp/index.html ]
+ # Note: Don't write files to /tmp from cloud-init use /run/somedir instead.
+ # Early boot environments can race systemd-tmpfiles-clean LP: #1707222.
+ - mkdir /run/mydir
+ - [ wget, "http://slashdot.org", -O, /run/mydir/index.html ]
 
 
 # boot commands
diff --git a/doc/rtd/topics/format.rst b/doc/rtd/topics/format.rst
index e25289a..1b0ff36 100644
--- a/doc/rtd/topics/format.rst
+++ b/doc/rtd/topics/format.rst
@@ -121,7 +121,7 @@ Cloud Boothook
 
 This content is ``boothook`` data. It is stored in a file under ``/var/lib/cloud`` and then executed immediately.
 This is the earliest ``hook`` available. Note, that there is no mechanism provided for running only once. The boothook must take care of this itself.
-It is provided with the instance id in the environment variable ``INSTANCE_I``. This could be made use of to provide a 'once-per-instance' type of functionality.
+It is provided with the instance id in the environment variable ``INSTANCE_ID``. This could be made use of to provide a 'once-per-instance' type of functionality.
 
 Begins with: ``#cloud-boothook`` or ``Content-Type: text/cloud-boothook`` when using a MIME archive.
 
diff --git a/integration-requirements.txt b/integration-requirements.txt
index e5bb5b2..01baebd 100644
--- a/integration-requirements.txt
+++ b/integration-requirements.txt
@@ -17,4 +17,4 @@ git+https://github.com/lxc/pylxd.git@4b8ab1802f9aee4eb29cf7b119dae0aa47150779
 
 
 # finds latest image information
-bzr+lp:simplestreams
+git+https://git.launchpad.net/simplestreams
diff --git a/tests/cloud_tests/testcases/modules/salt_minion.py b/tests/cloud_tests/testcases/modules/salt_minion.py
deleted file mode 100644
index fc9688e..0000000
--- a/tests/cloud_tests/testcases/modules/salt_minion.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# This file is part of cloud-init. See LICENSE file for license information.
-
-"""cloud-init Integration Test Verify Script."""
-from tests.cloud_tests.testcases import base
-
-
-class Test(base.CloudTestCase):
-    """Test salt minion module."""
-
-    def test_minon_master(self):
-        """Test master value in config."""
-        out = self.get_data_file('minion')
-        self.assertIn('master: salt.mydomain.com', out)
-
-    def test_minion_pem(self):
-        """Test private key."""
-        out = self.get_data_file('minion.pem')
-        self.assertIn('------BEGIN PRIVATE KEY------', out)
-        self.assertIn('<key data>', out)
-        self.assertIn('------END PRIVATE KEY-------', out)
-
-    def test_minion_pub(self):
-        """Test public key."""
-        out = self.get_data_file('minion.pub')
-        self.assertIn('------BEGIN PUBLIC KEY-------', out)
-        self.assertIn('<key data>', out)
-        self.assertIn('------END PUBLIC KEY-------', out)
-
-    def test_grains(self):
-        """Test master value in config."""
-        out = self.get_data_file('grains')
-        self.assertIn('role: web', out)
-
-    def test_minion_installed(self):
-        """Test if the salt-minion package is installed"""
-        self.assertPackageInstalled('salt-minion')
-
-# vi: ts=4 expandtab
diff --git a/tests/cloud_tests/testcases/modules/salt_minion.yaml b/tests/cloud_tests/testcases/modules/salt_minion.yaml
deleted file mode 100644
index 9227147..0000000
--- a/tests/cloud_tests/testcases/modules/salt_minion.yaml
+++ /dev/null
@@ -1,49 +0,0 @@
-#
-# Create config for a salt minion
-#
-# 2016-11-17: Currently takes >60 seconds results in test failure
-#
-enabled: True
-cloud_config: |
-  #cloud-config
-  salt_minion:
-      conf:
-          master: salt.mydomain.com
-      public_key: |
-          ------BEGIN PUBLIC KEY-------
-          <key data>
-          ------END PUBLIC KEY-------
-      private_key: |
-          ------BEGIN PRIVATE KEY------
-          <key data>
-          ------END PRIVATE KEY-------
-      grains:
-          role: web
-collect_scripts:
-  minion: |
-    #!/bin/bash
-    cat /etc/salt/minion
-  minion_id: |
-    #!/bin/bash
-    cat /etc/salt/minion_id
-  minion.pem: |
-    #!/bin/bash
-    PRIV_KEYFILE=/etc/salt/pki/minion/minion.pem
-    if [ ! -f $PRIV_KEYFILE ]; then
-        # Bionic and later automatically moves /etc/salt/pki/minion/*
-        PRIV_KEYFILE=/var/lib/salt/pki/minion/minion.pem
-    fi
-    cat $PRIV_KEYFILE
-  minion.pub: |
-    #!/bin/bash
-    PUB_KEYFILE=/etc/salt/pki/minion/minion.pub
-    if [ ! -f $PUB_KEYFILE ]; then
-        # Bionic and later automatically moves /etc/salt/pki/minion/*
-        PUB_KEYFILE=/var/lib/salt/pki/minion/minion.pub
-    fi
-    cat $PUB_KEYFILE
-  grains: |
-    #!/bin/bash
-    cat /etc/salt/grains
-
-# vi: ts=4 expandtab
diff --git a/tests/unittests/test_datasource/test_azure_helper.py b/tests/unittests/test_datasource/test_azure_helper.py
index af9d3e1..26b2b93 100644
--- a/tests/unittests/test_datasource/test_azure_helper.py
+++ b/tests/unittests/test_datasource/test_azure_helper.py
@@ -85,7 +85,9 @@ class TestFindEndpoint(CiTestCase):
         self.dhcp_options.return_value = {"eth0": {"unknown_245": "5:4:3:2"}}
         self.assertEqual('5.4.3.2', wa_shim.find_endpoint(None))
 
-    def test_latest_lease_used(self):
+    @mock.patch('cloudinit.sources.helpers.azure.util.is_FreeBSD')
+    def test_latest_lease_used(self, m_is_freebsd):
+        m_is_freebsd.return_value = False  # To avoid hitting load_file
         encoded_addresses = ['5:4:3:2', '4:3:2:1']
         file_content = '\n'.join([self._build_lease_content(encoded_address)
                                   for encoded_address in encoded_addresses])
diff --git a/tools/run-container b/tools/run-container
index 499e85b..6dedb75 100755
--- a/tools/run-container
+++ b/tools/run-container
@@ -418,7 +418,7 @@ main() {
         { bad_Usage; return; }
 
     local cur="" next=""
-    local package="" source_package="" unittest="" name=""
+    local package=false srcpackage=false unittest="" name=""
     local dirty=false pyexe="auto" artifact_d="."
 
     while [ $# -ne 0 ]; do
@@ -430,8 +430,8 @@ main() {
             -k|--keep) KEEP=true;;
             -n|--name) name="$next"; shift;;
                --pyexe) pyexe=$next; shift;;
-            -p|--package) package=1;;
-            -s|--source-package) source_package=1;;
+            -p|--package) package=true;;
+            -s|--source-package) srcpackage=true;;
             -u|--unittest) unittest=1;;
             -v|--verbose) VERBOSITY=$((VERBOSITY+1));;
             --) shift; break;;
@@ -529,8 +529,8 @@ main() {
             build_srcpkg="./packages/brpm $distflag --srpm"
             pkg_ext=".rpm";;
     esac
-    if [ -n "$source_package" ]; then
-        [ -n "$build_pkg" ] || {
+    if [ "$srcpackage" = "true" ]; then
+        [ -n "$build_srcpkg" ] || {
             error "Unknown package command for $OS_NAME"
             return 1
         }
@@ -542,19 +542,21 @@ main() {
         }
     fi
 
-    if [ -n "$package" ]; then
-        [ -n "$build_srcpkg" ] || {
+    if [ "$package" = "true" ]; then
+        [ -n "$build_pkg" ] || {
             error "Unknown build source command for $OS_NAME"
             return 1
         }
         debug 1 "building binary package with $build_pkg."
+        # shellcheck disable=SC2086
         inside_as_cd "$name" "$user" "$cdir" $pyexe $build_pkg || {
             errorrc "failed: $build_pkg";
             errors[${#errors[@]}]="binary package"
         }
     fi
 
-    if [ -n "$artifact_d" ]; then
+    if [ -n "$artifact_d" ] &&
+        [ "$package" = "true" -o "$srcpackage" = "true" ]; then
         local art=""
         artifact_d="${artifact_d%/}/"
         [ -d "${artifact_d}" ] || mkdir -p "$artifact_d" || {