First stab at autogenerating replication ips for pg_hba

inventory/inventory

@@ -273,6 +273,12 @@ db-qastg01.qa.fedoraproject.org
 db-fas01.stg.phx2.fedoraproject.org
 db01.stg.phx2.fedoraproject.org
 db03.stg.phx2.fedoraproject.org
+
+# postgresql bidirectional replication servers
+[pgbdr]
+
+# postgresql bidirectional replication servers (stg)
+[pgbdr-stg]
 db-koji01.stg.phx2.fedoraproject.org
 db-koji02.stg.phx2.fedoraproject.org
 pgbdr01.stg.phx2.fedoraproject.org

roles/postgresql_server_bdr/tasks/main.yml

@@ -51,7 +51,7 @@
   - postgresql
 
 - name: Add our postgres config file.
-  copy: >
+  template: >
     src={{ item }}
     dest=/var/lib/pgsql/9.4-bdr/data/{{ item }}
     owner=postgres

roles/postgresql_server_bdr/templates/pg_hba.conf

@@ -76,6 +76,20 @@ host all all 0.0.0.0 0.0.0.0 md5
 # Note, I can't think of a reason to make this more restrictive than ipv4 but
 # only fakefas needs it so far
 host all all ::1/128 md5
+{% for host in groups['pgbdr-stg']|sort %}
+# staging replication hosts
+{% if 'eth0_ip' in hostvars[host] %}# {{ host }}
+host     replication    all             {{ hostvars[host]['eth0_ip'] }} md5
+{% else %}# {{ host }} has no 'eth0_ip' listed
+{% endif %}
+{% endfor %}
+{% for host in groups['pgbdr']|sort %}
+# production replication hosts
+{% if 'eth0_ip' in hostvars[host] %}# {{ host }}
+host     replication    all             {{ hostvars[host]['eth0_ip'] }} md5
+{% else %}# {{ host }} has no 'eth0_ip' listed
+{% endif %}
+{% endfor %}
 host     all             all             10.5.126.188/32      trust
 host     all             all             10.5.126.189/32      trust
 host     replication     all             10.5.126.188/32      trust