db replica base

server/database/db_balancer/master.yaml

@@ -0,0 +1,12 @@
+services:
+  postgres-master:
+    image: bitnami/postgresql:16
+    environment:
+      - POSTGRESQL_REPLICATION_MODE=master
+      - POSTGRESQL_REPLICATION_USER=repl_user
+      - POSTGRESQL_REPLICATION_PASSWORD=repl_pass
+      - POSTGRESQL_USERNAME=admin
+      - POSTGRESQL_PASSWORD=admin
+      - POSTGRESQL_DATABASE=mydb
+    ports:
+      - '5432:5432'

server/database/db_balancer/pgpool.conf

@@ -0,0 +1,20 @@
+#Это если вдруг мне когда нибудь приспичит сделать sql balancer с распределенными бд через pgpool-II
+
+backend_hostname0 = 'pg-master'
+backend_port0 = 5432
+backend_weight0 = 1
+backend_flag0 = 'ALWAYS_PRIMARY'
+
+backend_hostname1 = 'pg-replica1'
+backend_port1 = 5432
+backend_weight1 = 1
+backend_flag1 = 'ALLOW_TO_FAILOVER' 
+
+backend_hostname2 = 'pg-replica2'
+backend_port2 = 5432
+backend_weight2 = 1 #сколько запросов куда отправлять 1/1 например = 50/50
+backend_flag2 = 'ALLOW_TO_FAILOVER'
+
+load_balance_mode = on
+replication_mode = off #не юзают, тк устарело и глючно
+master_slave_mode = on

server/database/db_balancer/replica.yaml

@@ -0,0 +1,11 @@
+services:
+  postgres-replica:
+    image: bitnami/postgresql:16
+    environment:
+      - POSTGRESQL_REPLICATION_MODE=slave
+      - POSTGRESQL_REPLICATION_USER=repl_user
+      - POSTGRESQL_REPLICATION_PASSWORD=repl_pass
+      - POSTGRESQL_MASTER_HOST=MASTER_IP_ИЛИ_DNS
+      - POSTGRESQL_PASSWORD=admin
+    ports:
+      - "5432:5432"