Add custom postgres config and set max_locks_per_transaction/max_pred…

…_locks_per_transaction

compose/pgsql.yml

@@ -5,57 +5,69 @@ services:
     image: postgres:9.3
     container_name: totara_pgsql93
     ports:
-    - "5493:5432"
+      - "5493:5432"
     environment:
       PGDATA: /var/lib/postgresql/data/pgdata
+    command:
+      postgres -c 'config_file=/etc/postgresql/postgresql.conf'
     volumes:
-    - pgsql93-data:/var/lib/postgresql/data
+      - ./pgsql/my-postgres.conf:/etc/postgresql/postgresql.conf
+      - pgsql93-data:/var/lib/postgresql/data
     depends_on:
-    - nginx
+      - nginx
     networks:
-    - totara
+      - totara
 
   pgsql96:
     image: postgres:9.6
     container_name: totara_pgsql96
     ports:
-    - "5496:5432"
+      - "5496:5432"
     environment:
       PGDATA: /var/lib/postgresql/data/pgdata
+    command:
+      postgres -c 'config_file=/etc/postgresql/postgresql.conf'
     volumes:
-    - pgsql96-data:/var/lib/postgresql/data
+      - ./pgsql/my-postgres.conf:/etc/postgresql/postgresql.conf
+      - pgsql96-data:/var/lib/postgresql/data
     depends_on:
-    - nginx
+      - nginx
     networks:
-    - totara
+      - totara
 
   pgsql10:
     image: postgres:10.6
     container_name: totara_pgsql10
     ports:
-    - "5410:5432"
+      - "5410:5432"
     environment:
       PGDATA: /var/lib/postgresql/data/pgdata
+    command:
+      postgres -c 'config_file=/etc/postgresql/postgresql.conf'
     volumes:
-    - pgsql10-data:/var/lib/postgresql/data
+      - ./pgsql/my-postgres.conf:/etc/postgresql/postgresql.conf
+      - pgsql10-data:/var/lib/postgresql/data
     depends_on:
-    - nginx
+      - nginx
     networks:
-    - totara
+      - totara
 
   pgsql:
     image: postgres:11.1
     container_name: totara_pgsql11
     ports:
-    - "5432:5432"
+      - "5432:5432"
     environment:
       PGDATA: /var/lib/postgresql/data/pgdata
+    command:
+      postgres -c 'config_file=/etc/postgresql/postgresql.conf'
     volumes:
-    - pgsql11-data:/var/lib/postgresql/data
+      - ./pgsql/my-postgres.conf:/etc/postgresql/postgresql.conf
+      - pgsql11-data:/var/lib/postgresql/data
     depends_on:
-    - nginx
+      - nginx
     networks:
-    - totara
+      - totara
 
 volumes:
   pgsql93-data:

pgsql/my-postgres.conf

@@ -0,0 +1,16 @@
+# -----------------------------
+# PostgreSQL configuration file
+# -----------------------------
+#
+# How to get an example pgsql config file:
+# docker run -i --rm postgres cat /usr/share/postgresql/postgresql.conf.sample > my-postgres.conf
+#
+# Memory units:  kB = kilobytes        Time units:  ms  = milliseconds
+#                MB = megabytes                     s   = seconds
+#                GB = gigabytes                     min = minutes
+#                TB = terabytes                     h   = hours
+#                                                   d   = days
+
+listen_addresses = '*'
+max_locks_per_transaction      = 1024
+max_pred_locks_per_transaction = 1024