feat: add OSA migration toolkit (#324)

* wip: add osa migration toolkit

* wip: added nova config extraction

* wip: added nova atmosphere config gen

* wip: clean-up nova configs

* wip: clean-up heat configs

* wip: add heat migration

* chore: refactor to migrate_db_from_osa

* chore: remove extra task

* chore: add magnum migrate

* chore: added haproxy migrate

* chore: misc fixes for osa_config_diff

* chore: misc fixes for osa_config_diff

* chore: add more services to osa migration

* chore: add pubkey generation to nova

* chore: add nova migration for computes

* chore: add multi-config file migration

* fix: multi-config file

* chore: add neutron migration

* chore: add neutron migration

* chore: add horizon migration

* chore: fix horizon migration

* chore: add cinder migration

* chore: add cinder migration for backends

* fix: enable cinder to do online volume resizes

* chore: turn off cinder services

* fix: allow uppercase backends

* fix: allow storage init with uppercase

* fix: allow for octavia migration from OSA

* move resource generation out

* chore: auto-detect health manager ips

* fix: discover facts for other controllers

* chore(octavia): migrate ca for amphora

* fix: use int for private key size

* chore: add designate migration

* fix: use yaml for designate_pools

* chore: add managed_resource_tenant_id
diff --git a/charts/nova/values.yaml b/charts/nova/values.yaml
index 8609d41..1a0da3e 100644
--- a/charts/nova/values.yaml
+++ b/charts/nova/values.yaml
@@ -1356,14 +1356,10 @@
       osapi_compute_listen_port: null
       osapi_compute_workers: 1
       metadata_workers: 1
-      use_neutron: true
-      firewall_driver: nova.virt.firewall.NoopFirewallDriver
-      linuxnet_interface_driver: openvswitch
       compute_driver: libvirt.LibvirtDriver
       my_ip: 0.0.0.0
       instance_usage_audit: True
       instance_usage_audit_period: hour
-      notify_on_state_change: vm_and_task_state
       resume_guests_state_on_host_boot: True
     vnc:
       novncproxy_host: 0.0.0.0
@@ -1403,6 +1399,8 @@
       auth_type: password
       auth_version: v3
       memcache_security_strategy: ENCRYPT
+    notifications:
+      notify_on_state_change: vm_and_task_state
     service_user:
       auth_type: password
       send_service_user_token: false