Add ability to build ironic-python-agent ramdisk from packages

Splits the install.d into source-install and package-install in
order to allow building from a distro packaged version of
ironic-python-agent.

Change-Id: I17513c29efd8c199e07ac1ef20ea5d7456585413

elements/ironic-agent/install.d/ironic-agent-package-install/package-installs-ironic-agent

@@ -0,0 +1 @@
+ironic-python-agent

elements/ironic-agent/pkg-map

@@ -2,14 +2,17 @@
   "distro": {
     "rhel": {
       "tgt": "targetcli"
+      "ironic-python-agent": "openstack-ironic-python-agent"
     },
     "centos":{
       "tgt": "scsi-target-utils"
+      "ironic-python-agent": "openstack-ironic-python-agent"
     }
   },
   "family": {
     "redhat": {
       "tgt": "scsi-target-utils"
+      "ironic-python-agent": "openstack-ironic-python-agent"
     },
     "debian": {
       "tgt": "tgt"
@@ -17,5 +20,6 @@
   },
   "default": {
     "tgt": "tgt"
+    "ironic-python-agent": "openstack-ironic-python-agent"
   }
 }

elements/ironic-agent/post-install.d/80-ironic-agent

@@ -17,9 +17,11 @@ case "$DIB_INIT_SYSTEM" in
         ;;
     systemd)
         systemctl disable iptables.service
+        systemctl enable openstack-ironic-python-agent.service
         ;;
     sysv)
         update-rc.d iptables disable
+        update-rc.d openstack-ironic-python-agent enable
         ;;
     *)
         echo "Unsupported init system"