Introduce support for Ironic chart overrides

Add plugin with override support for:
 - docker image source

Change-Id: Ia727768142c7b33d6cc4fb0e8d489126ca348743
Story: 2003909
Task: 27087
Signed-off-by: Robert Church <robert.church@windriver.com>

sysinv/sysinv/sysinv/sysinv/common/constants.py

@@ -1320,6 +1320,7 @@ HELM_CHART_GLANCE = 'glance'
 HELM_CHART_HEAT = 'heat'
 HELM_CHART_HORIZON = 'horizon'
 HELM_CHART_INGRESS = 'ingress'
+HELM_CHART_IRONIC = 'ironic'
 HELM_CHART_KEYSTONE = 'keystone'
 HELM_CHART_LIBVIRT = 'libvirt'
 HELM_CHART_MARIADB = 'mariadb'
@@ -1337,6 +1338,7 @@ SUPPORTED_HELM_CHARTS = [
     HELM_CHART_HEAT,
     HELM_CHART_HORIZON,
     HELM_CHART_INGRESS,
+    HELM_CHART_IRONIC,
     HELM_CHART_KEYSTONE,
     HELM_CHART_LIBVIRT,
     HELM_CHART_MARIADB,

sysinv/sysinv/sysinv/sysinv/helm/helm.py

@@ -25,6 +25,7 @@ from . import barbican
 from . import glance
 from . import heat
 from . import horizon
+from . import ironic
 from . import keystone
 from . import neutron
 from . import nova
@@ -83,6 +84,7 @@ class HelmOperator(object):
             constants.HELM_CHART_HEAT: heat.HeatHelm(self),
             constants.HELM_CHART_HORIZON: horizon.HorizonHelm(self),
             constants.HELM_CHART_INGRESS: ingress.IngressHelm(self),
+            constants.HELM_CHART_IRONIC: ironic.IronicHelm(self),
             constants.HELM_CHART_KEYSTONE: keystone.KeystoneHelm(self),
             constants.HELM_CHART_LIBVIRT: libvirt.LibvirtHelm(self),
             constants.HELM_CHART_MARIADB: mariadb.MariadbHelm(self),

sysinv/sysinv/sysinv/sysinv/helm/ironic.py

@@ -0,0 +1,61 @@
+#
+# Copyright (c) 2018 Wind River Systems, Inc.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+from sysinv.common import constants
+from sysinv.common import exception
+
+from . import common
+from . import openstack
+
+
+class IronicHelm(openstack.OpenstackBaseHelm):
+    """Class to encapsulate helm operations for the ironic chart"""
+
+    CHART = constants.HELM_CHART_IRONIC
+    SUPPORTED_NAMESPACES = [
+        common.HELM_NS_OPENSTACK
+    ]
+
+    SERVICE_NAME = constants.HELM_CHART_IRONIC
+
+    def get_namespaces(self):
+        return self.SUPPORTED_NAMESPACES
+
+    def get_overrides(self, namespace=None):
+        overrides = {
+            common.HELM_NS_OPENSTACK: {
+                'images': self._get_images_overrides(),
+            }
+        }
+
+        if namespace in self.SUPPORTED_NAMESPACES:
+            return overrides[namespace]
+        elif namespace:
+            raise exception.InvalidHelmNamespace(chart=self.CHART,
+                                                 namespace=namespace)
+        else:
+            return overrides
+
+    def _get_images_overrides(self):
+        heat_image = self._operator.chart_operators[
+            constants.HELM_CHART_HEAT].docker_image
+        return {
+            'tags': {
+                'bootstrap': heat_image,
+                'db_init': heat_image,
+                'ironic_api': self.docker_image,
+                'ironic_conductor': self.docker_image,
+                'ironic_db_sync': self.docker_image,
+                'ironic_manage_cleaning_network': heat_image,
+                'ironic_pxe': self.docker_image,
+                'ironic_pxe_init': self.docker_image,
+                'ironic_retrive_cleaning_network': heat_image,
+                'ironic_retrive_swift_config': heat_image,
+                'ks_endpoints': heat_image,
+                'ks_service': heat_image,
+                'ks_user': heat_image,
+            }
+        }