Add postgres adminPassword to SOC module config

Injects the postgres superuser password from secrets pillar so
SOC can run schema migrations as admin before switching to the
app user for normal operations.

salt/soc/defaults.map.jinja

@@ -25,7 +25,8 @@
 {% do SOCDEFAULTS.soc.config.server.modules.elastic.update({'username': GLOBALS.elasticsearch.auth.users.so_elastic_user.user, 'password': GLOBALS.elasticsearch.auth.users.so_elastic_user.pass}) %}
 
 {% if GLOBALS.postgres is defined and GLOBALS.postgres.auth is defined %}
-{% do SOCDEFAULTS.soc.config.server.modules.update({'postgres': {'hostUrl': GLOBALS.manager_ip, 'port': 5432, 'username': GLOBALS.postgres.auth.users.so_postgres_user.user, 'password': GLOBALS.postgres.auth.users.so_postgres_user.pass, 'dbname': 'securityonion', 'sslMode': 'require', 'assistantEnabled': true}}) %}
+{%   set PG_ADMIN_PASS = salt['pillar.get']('secrets:postgres_pass', '') %}
+{% do SOCDEFAULTS.soc.config.server.modules.update({'postgres': {'hostUrl': GLOBALS.manager_ip, 'port': 5432, 'username': GLOBALS.postgres.auth.users.so_postgres_user.user, 'password': GLOBALS.postgres.auth.users.so_postgres_user.pass, 'adminUser': 'postgres', 'adminPassword': PG_ADMIN_PASS, 'dbname': 'securityonion', 'sslMode': 'require', 'assistantEnabled': true}}) %}
 {% endif %}
 
 {% do SOCDEFAULTS.soc.config.server.modules.influxdb.update({'hostUrl': 'https://' ~ GLOBALS.influxdb_host ~ ':8086'}) %}