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Limit access to sshd used for nova migration

Previously access to the sshd running by the nova-migration-target
container is only limited via the sshd_config. While login is
not possible from other networks, the service is reachable via
all networks. This change limits the access to the NovaLibvirt
and NovaApi networks which are used for cold and live-migration.

Change-Id: Ie868463143af66c7004dbcacefde76ca0977880e
changes/31/784031/5
Martin Schuppert 1 year ago
parent
commit
c04c9b0d70
  1. 30
      deployment/nova/nova-migration-target-container-puppet.yaml
  2. 8
      releasenotes/notes/nova_migration_limit_access-20be8d69686ca95c.yaml

30
deployment/nova/nova-migration-target-container-puppet.yaml

@ -85,9 +85,33 @@ outputs:
value:
service_name: nova_migration_target
firewall_rules:
'113 nova_migration_target':
dport:
- {get_param: MigrationSshPort}
map_merge:
- map_merge:
repeat:
for_each:
<%net_cidr%>:
get_param:
- ServiceData
- net_cidr_map
- {get_param: [ServiceNetMap, NovaLibvirtNetwork]}
template:
'113 nova_migration_target accept libvirt subnet <%net_cidr%>':
source: <%net_cidr%>
proto: 'tcp'
dport: {get_param: MigrationSshPort}
- map_merge:
repeat:
for_each:
<%net_cidr%>:
get_param:
- ServiceData
- net_cidr_map
- {get_param: [ServiceNetMap, NovaApiNetwork]}
template:
'113 nova_migration_target accept api subnet <%net_cidr%>':
source: <%net_cidr%>
proto: 'tcp'
dport: {get_param: MigrationSshPort}
config_settings:
map_merge:
- get_attr: [SshdBase, role_data, config_settings]

8
releasenotes/notes/nova_migration_limit_access-20be8d69686ca95c.yaml

@ -0,0 +1,8 @@
---
fixes:
- |
Previously access to the sshd running by the nova-migration-target
container is only limited via the sshd_config. While login is
not possible from other networks, the service is reachable via
all networks. This change limits the access to the NovaLibvirt
and NovaApi networks which are used for cold and live-migration.
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