Add support for CentOS 8 amphora images

Change-Id: Ic3b1dab418cfd95fe261ca19528ec969ee57610e

elements/amphora-agent/pkg-map

@@ -8,6 +8,15 @@
         "screen": "",
         "dkms": ""
       }
+    },
+    "centos": {
+      "8": {
+        "isc-dhcp-client": "dhcp-client",
+        "python-dev": "platform-python-devel",
+        "vlan": "",
+        "screen": "",
+        "dkms": ""
+      }
     }
   },
   "family": {

elements/amphora-agent/post-install.d/10-enable-network-scripts

@@ -7,6 +7,6 @@ fi
 set -eu
 set -o pipefail
 
-if [ "$DISTRO_NAME" == "rhel" ] && [ "$DIB_RELEASE" == "8" ]; then
+if [[ "$DISTRO_NAME" =~ (rhel|centos) ]] && [ "$DIB_RELEASE" == "8" ]; then
     chkconfig network on
 fi

octavia/amphorae/backends/agent/api_server/osutils.py

@@ -41,10 +41,9 @@ j2_env = jinja2.Environment(autoescape=True, loader=jinja2.FileSystemLoader(
 
 class BaseOS(object):
 
-    PACKAGE_NAME_MAP = {}
-
     def __init__(self, os_name):
         self.os_name = os_name
+        self.package_name_map = {}
 
     @classmethod
     def _get_subclasses(cls):
@@ -61,9 +60,8 @@ class BaseOS(object):
                 return subclass(os_name)
         raise octavia_exceptions.InvalidAmphoraOperatingSystem(os_name=os_name)
 
-    @classmethod
-    def _map_package_name(cls, package_name):
-        return cls.PACKAGE_NAME_MAP.get(package_name, package_name)
+    def _map_package_name(self, package_name):
+        return self.package_name_map.get(package_name, package_name)
 
     def get_network_interface_file(self, interface):
         if CONF.amphora_agent.agent_server_network_file:
@@ -558,7 +556,10 @@ class RH(BaseOS):
 
 class CentOS(RH):
 
-    PACKAGE_NAME_MAP = {'haproxy': 'haproxy18'}
+    def __init__(self, os_name):
+        super(CentOS, self).__init__(os_name)
+        if distro.version() == '7':
+            self.package_name_map.update({'haproxy': 'haproxy18'})
 
     @classmethod
     def is_os_name(cls, os_name):

octavia/tests/unit/amphorae/backends/agent/api_server/test_osutils.py

@@ -43,10 +43,13 @@ class TestOSUtils(base.TestCase):
                         return_value='rhel'):
             self.rh_os_util = osutils.BaseOS.get_os_util()
 
-        with mock.patch('distro.id',
-                        return_value='centos'):
+        with mock.patch('distro.id', return_value='centos'):
             self.centos_os_util = osutils.BaseOS.get_os_util()
 
+        with mock.patch('distro.id', return_value='centos'):
+            with mock.patch('distro.version', return_value='7'):
+                self.centos7_os_util = osutils.BaseOS.get_os_util()
+
     def test_get_os_util(self):
         with mock.patch('distro.id',
                         return_value='ubuntu'):
@@ -178,8 +181,14 @@ class TestOSUtils(base.TestCase):
 
     def test_cmd_get_version_of_installed_package_mapped(self):
         package_name = 'haproxy'
-        centos_cmd = "rpm -q --queryformat %{VERSION} haproxy18"
+        centos7_cmd = "rpm -q --queryformat %{VERSION} haproxy18"
 
+        returned_centos7_cmd = (
+            self.centos7_os_util.cmd_get_version_of_installed_package(
+                package_name))
+        self.assertEqual(centos7_cmd, returned_centos7_cmd)
+
+        centos_cmd = "rpm -q --queryformat %{VERSION} haproxy"
         returned_centos_cmd = (
             self.centos_os_util.cmd_get_version_of_installed_package(
                 package_name))

releasenotes/notes/add-support-for-centos-8-e0730de5d20a48be.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Added support for CentOS 8 amphora images.

zuul.d/jobs.yaml

@@ -60,6 +60,16 @@
         amphora_image_size: 3
         amphora_os_release: 7
 
+- job:
+    name: publish-openstack-octavia-amphora-image-centos8
+    parent: publish-openstack-octavia-amphora-image
+    description: |
+      Publish CentOS 8 based amphora image to tarballs.o.o.
+    vars:
+        amphora_os: centos
+        amphora_image_size: 3
+        amphora_os_release: 8
+
 - job:
     name: octavia-grenade
     parent: octavia-legacy-dsvm-base

zuul.d/projects.yaml

@@ -75,3 +75,5 @@
             branches: ^(?!stable/.*).*$
         - publish-openstack-octavia-amphora-image-centos7:
             branches: ^(?!stable/.*).*$
+        - publish-openstack-octavia-amphora-image-centos8:
+            branches: ^(?!stable/.*).*$