Add support for EL9 and python3.9

Following is done:-
- Using distro module to get distribution as platform
  module no longer provide that with python3.8+[1].
- Use mariadb-server-galera as mariadb don't provide
  mariadb-galera-server in EL9[2].
- Ensure 'cronie' package is installed before attempting
  start of crond service.

[1] https://bugs.python.org/issue28167
[2] https://src.fedoraproject.org/rpms/mariadb/c/b1bc71c1a

Change-Id: I744de28a25739c00f585b7d9c12627ce0ed902f2
(cherry picked from commit e11f86aeca)

packstack/plugins/nova_300.py

@@ -16,8 +16,8 @@
 Installs and configures Nova
 """
 
+import distro
 import os
-import platform
 import socket
 
 from packstack.installer import basedefs
@@ -38,7 +38,7 @@ PLUGIN_NAME_COLORED = utils.color_text(PLUGIN_NAME, 'blue')
 
 
 def initConfig(controller):
-    if platform.linux_distribution()[0] == "Fedora":
+    if distro.linux_distribution()[0] == "Fedora":
         primary_netif = "em1"
         secondary_netif = "em2"
     else:

packstack/plugins/prescript_000.py

@@ -16,10 +16,10 @@
 Plugin responsible for setting OpenStack global options
 """
 
+import distro
 import os
 import re
 import logging
-import platform
 import glob
 import os
 import uuid
@@ -949,16 +949,16 @@ def initSequences(controller):
 
 
 def is_rhel():
-    return 'Red Hat Enterprise Linux' in platform.linux_distribution()[0]
+    return 'Red Hat Enterprise Linux' in distro.linux_distribution()[0]
 
 
 def detect_os_and_version(host):
     server = utils.ScriptRunner(host)
     server.append(
-        'python -c "import platform; '
-        'print platform.linux_distribution(full_distribution_name=0)[0]'
+        'python -c "import distro; '
+        'print distro.linux_distribution(full_distribution_name=0)[0]'
         '+\',\'+'
-        'platform.linux_distribution()[1]"'
+        'distro.linux_distribution()[1]"'
     )
     try:
         rc, out = server.execute()

packstack/puppet/modules/packstack/lib/facter/mariadb.rb

@@ -4,9 +4,9 @@
 Facter.add(:mariadb_provides_galera) do
   setcode do
     if Facter.value(:operatingsystem) == 'Fedora' and Facter.value(:operatingsystemmajrelease).to_i > 22
-      command = 'dnf repoquery --whatprovides mariadb-galera-server'
+      command = 'dnf repoquery --whatprovides mariadb-server-galera'
     else
-      command = 'repoquery --whatprovides mariadb-galera-server'
+      command = 'repoquery --whatprovides mariadb-server-galera'
     end
     output = Facter::Util::Resolution.exec(command)
     (output =~ /mariadb-server-galera.*/) != nil

packstack/puppet/modules/packstack/manifests/keystone.pp

@@ -15,9 +15,14 @@ class packstack::keystone ()
       class { '::keystone::cron::fernet_rotate':
         require     => Service['crond'],
       }
+      package { 'cronie':
+        ensure => 'installed',
+        name   => 'cronie',
+      }
       service { 'crond':
-        ensure => 'running',
-        enable => true,
+        ensure  => 'running',
+        enable  => true,
+        require => Package['cronie'],
       }
     }
 

packstack/puppet/modules/packstack/manifests/mariadb.pp

@@ -9,8 +9,8 @@ class packstack::mariadb ()
       $mariadb_package_name = 'mariadb-server-galera'
       $mariadb_present      = 'present'
     } else  {
-      # Package mariadb-server conflicts with mariadb-galera-server
-      $mariadb_package_name = 'mariadb-galera-server'
+      # Package mariadb-server conflicts with mariadb-server-galera
+      $mariadb_package_name = 'mariadb-server-galera'
       $mariadb_present      = 'absent'
     }
     ensure_packages(['mariadb-server'], {'ensure' => $mariadb_present})

requirements.txt

@@ -4,3 +4,4 @@ PyYAML>=3.10
 docutils>=0.11
 pyOpenSSL>=16.2.0
 netifaces
+distro

tests/installer/test_run_setup.py

@@ -26,6 +26,7 @@ from packstack.modules import puppet
 from packstack.installer import basedefs
 from packstack.installer import run_setup
 from packstack.installer import validators
+from packstack.plugins.nova_300 import distro
 
 from ..test_base import FakePopen
 from ..test_base import PackstackTestCaseMixin
@@ -110,6 +111,10 @@ class CommandLineTestCase(PackstackTestCaseMixin, TestCase):
         puppet.validate_logfile = lambda a: None
         puppet.scan_logfile = lambda a: []
 
+        # mock distro.linux_distribution, it's does subprocess.check_output
+        # lsb_release -a
+        distro.linux_distribution = lambda: "CentOS"
+
         # If there is a error in a plugin sys.exit() gets called, this masks
         # the actual error that should be reported, so we replace it to
         # raise Exception, packstack logging gives a more infomrative error