Create default flavors in nova

This makes devstack create default flavors in nova, like cinder, now
that nova no longer hard-codes them into its database.

The flavors created here match the legacy default flavors that nova
kept for so long, and also creates a new devstack-namespaces set of
flavors which are likely more useful for people.

Change-Id: Ic275887e97221d9ce5ce6f12cdcfb5ac94e300b0

Author: kk7ds

lib/nova

@@ -932,6 +932,25 @@ function stop_nova {
     stop_nova_compute
 }
 
+# create_instance_types(): Create default flavors
+function create_flavors {
+    if ! openstack flavor list | grep -q ds512M; then
+    # Note that danms hates these flavors and apologizes for sdague
+        openstack flavor create --id c1 --ram 256 --disk 0 --vcpus 1 cirros256
+        openstack flavor create --id d1 --ram 512 --disk 5 --vcpus 1 ds512M
+        openstack flavor create --id d2 --ram 1024 --disk 10 --vcpus 1 ds1G
+        openstack flavor create --id d3 --ram 2048 --disk 10 --vcpus 2 ds2G
+        openstack flavor create --id d4 --ram 4096 --disk 20 --vcpus 4 ds4G
+    fi
+
+    if ! openstack flavor list | grep -q m1.tiny; then
+        openstack flavor create --id 1 --ram 512 --disk 1 --vcpus 1 m1.tiny
+        openstack flavor create --id 2 --ram 2048 --disk 20 --vcpus 1 m1.small
+        openstack flavor create --id 3 --ram 4096 --disk 40 --vcpus 2 m1.medium
+        openstack flavor create --id 4 --ram 8192 --disk 80 --vcpus 4 m1.large
+        openstack flavor create --id 5 --ram 16384 --disk 160 --vcpus 8 m1.xlarge
+    fi
+}
 
 # Restore xtrace
 $_XTRACE_LIB_NOVA

stack.sh

@@ -1251,6 +1251,7 @@ fi
 if is_service_enabled nova; then
     echo_summary "Starting Nova"
     start_nova
+    create_flavors
 fi
 if is_service_enabled cinder; then
     echo_summary "Starting Cinder"