py3: Switch to Python 3 at Rocky

Misc updates to support the switch to Python 3 for Rocky:

  - Change default smoke test target to bionic-rocky
  - Resync charm helpers

Charm does not directly install any python packages, so
cinder charm will deal with upgrade and switch to py3.

Change-Id: I77d412a62f4a5362c7221b869f4f9c03d5d87737

hooks/charmhelpers/contrib/openstack/context.py

@@ -1519,6 +1519,14 @@ class NeutronAPIContext(OSContextGenerator):
                 'rel_key': 'enable-qos',
                 'default': False,
             },
+            'enable_nsg_logging': {
+                'rel_key': 'enable-nsg-logging',
+                'default': False,
+            },
+            'nsg_log_output_base': {
+                'rel_key': 'nsg-log-output-base',
+                'default': None,
+            },
         }
         ctxt = self.get_neutron_options({})
         for rid in relation_ids('neutron-plugin-api'):

hooks/charmhelpers/contrib/openstack/utils.py

@@ -186,7 +186,7 @@ SWIFT_CODENAMES = OrderedDict([
     ('queens',
         ['2.16.0', '2.17.0']),
     ('rocky',
-        ['2.18.0']),
+        ['2.18.0', '2.19.0']),
 ])
 
 # >= Liberty version->codename mapping
@@ -1733,3 +1733,31 @@ def is_unit_upgrading_set():
             return not(not(kv.get('unit-upgrading')))
     except Exception:
         return False
+
+
+def series_upgrade_prepare(pause_unit_helper=None, configs=None):
+    """ Run common series upgrade prepare tasks.
+
+    :param pause_unit_helper: function: Function to pause unit
+    :param configs: OSConfigRenderer object: Configurations
+    :returns None:
+    """
+    set_unit_upgrading()
+    if pause_unit_helper and configs:
+        if not is_unit_paused_set():
+            pause_unit_helper(configs)
+
+
+def series_upgrade_complete(resume_unit_helper=None, configs=None):
+    """ Run common series upgrade complete tasks.
+
+    :param resume_unit_helper: function: Function to resume unit
+    :param configs: OSConfigRenderer object: Configurations
+    :returns None:
+    """
+    clear_unit_paused()
+    clear_unit_upgrading()
+    if configs:
+        configs.write_all()
+        if resume_unit_helper:
+            resume_unit_helper(configs)

hooks/charmhelpers/core/hookenv.py

@@ -48,6 +48,7 @@ INFO = "INFO"
 DEBUG = "DEBUG"
 TRACE = "TRACE"
 MARKER = object()
+SH_MAX_ARG = 131071
 
 cache = {}
 
@@ -98,7 +99,7 @@ def log(message, level=None):
         command += ['-l', level]
     if not isinstance(message, six.string_types):
         message = repr(message)
-    command += [message]
+    command += [message[:SH_MAX_ARG]]
     # Missing juju-log should not cause failures in unit tests
     # Send log output to stderr
     try:

hooks/charmhelpers/fetch/__init__.py

@@ -84,6 +84,7 @@ module = "charmhelpers.fetch.%s" % __platform__
 fetch = importlib.import_module(module)
 
 filter_installed_packages = fetch.filter_installed_packages
+filter_missing_packages = fetch.filter_missing_packages
 install = fetch.apt_install
 upgrade = fetch.apt_upgrade
 update = _fetch_update = fetch.apt_update
@@ -96,6 +97,7 @@ if __platform__ == "ubuntu":
     apt_update = fetch.apt_update
     apt_upgrade = fetch.apt_upgrade
     apt_purge = fetch.apt_purge
+    apt_autoremove = fetch.apt_autoremove
     apt_mark = fetch.apt_mark
     apt_hold = fetch.apt_hold
     apt_unhold = fetch.apt_unhold

hooks/charmhelpers/fetch/bzrurl.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 import os
-from subprocess import check_call
+from subprocess import STDOUT, check_output
 from charmhelpers.fetch import (
     BaseFetchHandler,
     UnhandledSource,
@@ -55,7 +55,7 @@ class BzrUrlFetchHandler(BaseFetchHandler):
             cmd = ['bzr', 'branch']
             cmd += cmd_opts
             cmd += [source, dest]
-        check_call(cmd)
+        check_output(cmd, stderr=STDOUT)
 
     def install(self, source, dest=None, revno=None):
         url_parts = self.parse_url(source)

hooks/charmhelpers/fetch/giturl.py

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 import os
-from subprocess import check_call, CalledProcessError
+from subprocess import check_output, CalledProcessError, STDOUT
 from charmhelpers.fetch import (
     BaseFetchHandler,
     UnhandledSource,
@@ -50,7 +50,7 @@ class GitUrlFetchHandler(BaseFetchHandler):
             cmd = ['git', 'clone', source, dest, '--branch', branch]
             if depth:
                 cmd.extend(['--depth', depth])
-        check_call(cmd)
+        check_output(cmd, stderr=STDOUT)
 
     def install(self, source, branch="master", dest=None, depth=None):
         url_parts = self.parse_url(source)

hooks/charmhelpers/fetch/ubuntu.py

@@ -189,6 +189,18 @@ def filter_installed_packages(packages):
     return _pkgs
 
 
+def filter_missing_packages(packages):
+    """Return a list of packages that are installed.
+
+    :param packages: list of packages to evaluate.
+    :returns list: Packages that are installed.
+    """
+    return list(
+        set(packages) -
+        set(filter_installed_packages(packages))
+    )
+
+
 def apt_cache(in_memory=True, progress=None):
     """Build and return an apt cache."""
     from apt import apt_pkg
@@ -248,6 +260,14 @@ def apt_purge(packages, fatal=False):
     _run_apt_command(cmd, fatal)
 
 
+def apt_autoremove(purge=True, fatal=False):
+    """Purge one or more packages."""
+    cmd = ['apt-get', '--assume-yes', 'autoremove']
+    if purge:
+        cmd.append('--purge')
+    _run_apt_command(cmd, fatal)
+
+
 def apt_mark(packages, mark, fatal=False):
     """Flag one or more packages using apt-mark."""
     log("Marking {} as {}".format(packages, mark))

tests/charmhelpers/core/hookenv.py

@@ -48,6 +48,7 @@ INFO = "INFO"
 DEBUG = "DEBUG"
 TRACE = "TRACE"
 MARKER = object()
+SH_MAX_ARG = 131071
 
 cache = {}
 
@@ -98,7 +99,7 @@ def log(message, level=None):
         command += ['-l', level]
     if not isinstance(message, six.string_types):
         message = repr(message)
-    command += [message]
+    command += [message[:SH_MAX_ARG]]
     # Missing juju-log should not cause failures in unit tests
     # Send log output to stderr
     try:

tox.ini

@@ -65,7 +65,7 @@ basepython = python2.7
 deps = -r{toxinidir}/requirements.txt
        -r{toxinidir}/test-requirements.txt
 commands =
-    bundletester -vl DEBUG -r json -o func-results.json gate-basic-bionic-queens --no-destroy
+    bundletester -vl DEBUG -r json -o func-results.json gate-basic-bionic-rocky --no-destroy
 
 [testenv:func27-dfs]
 # Charm Functional Test