moved postgres primary setup

files/postgres/primary/primary_config.conf

@@ -0,0 +1,25 @@
+# This value should match the "SqlSettings.MaxConnections" value within your config.json for Mattermost
+# This is a suggestion and can be set lower / higher based on the size of your server.
+max_connections = 1020
+tcp_keepalives_idle = 5
+tcp_keepalives_interval = 1
+tcp_keepalives_count = 5
+
+# Set both of the below settings to 65% of total memory. For a 32 GB instance, it should be 21 GB.
+# If on a smaller server, set this to 20% or less total RAM.
+# ex: 512MB would work for a 4GB RAM server
+shared_buffers = 512MB
+effective_cache_size = 512MB
+
+# Set it to 16 MB for readers and 32 MB for writers. If it's a single instance, 16 MB should be sufficient. If the instance is of a lower capacity than r5.xlarge, then set it to a lower number.
+work_mem = 16MB
+
+# 1GB (reduce this to 512MB if your server has less than 32GB of RAM)
+autovacuum_work_mem = 512MB
+autovacuum_max_workers = 4
+autovacuum_vacuum_cost_limit = 500
+
+#Set it to 1.1 unless the DB is using spinning disks.
+random_page_cost = 1.1
+
+restart_after_crash = on