fixed some replica config settings

files/mattermost/replicaConfig.json

@@ -0,0 +1,8 @@
+{
+  "SqlSettings": {
+    "DataSourceReplicas": [
+      "postgres://mmuser:mmuser_password@cs-repro-postgres-replica-1:5432/mattermost?sslmode=disable&connect_timeout=10&binary_parameters=yes",
+      "postgres://mmuser:mmuser_password@cs-repro-postgres-replica-2:5432/mattermost?sslmode=disable&connect_timeout=10&binary_parameters=yes"
+    ]
+  }
+}

files/postgres/replica/base_replica_config.conf

@@ -59,6 +59,10 @@ hot_standby_feedback = on
 # host - replace "x.x.x.x" with your IP or URL string.
 primary_conninfo = 'host=cs-repro-postgres port=5432 user=replicauser password=replicauser_password'
 
+# replication slot on sending server
+# This needs to be configured using the docs below for "Keeping the replica and primary in sync."
+primary_slot_name = ''
+
 log_connections = on
 log_disconnections = on
 log_replication_commands = on

files/postgres/replica/init.sh

@@ -2,16 +2,23 @@
 
 set -e
 
-echo "include '/files/postgres/replica/replica_config.conf'" >> /var/lib/postgresql/data/postgresql.conf
-cp /var/lib/postgresql/data/postgresql.conf /files/postgres/replica/baseconfig.conf
+## copying the base replica configuration and updating the primary slot name
+cp /files/postgres/replica/base_replica_config.conf /files/postgres/replica/${REPLICA_NAME}.conf
+sed -i "s/primary_slot_name = ''/primary_slot_name = '${REPLICA_NAME}_slot'/" /files/postgres/replica/${REPLICA_NAME}.conf
 
+## copying the default postgres config and adding the replica specific configuration
+echo "include '/files/postgres/replica/${REPLICA_NAME}.conf'" >> /var/lib/postgresql/data/postgresql.conf
+cp /var/lib/postgresql/data/postgresql.conf /files/postgres/replica/${REPLICA_NAME}_postgres.conf
 
+## Removing the pg data information to make way for the backup
 rm -rf /var/lib/postgresql/data/*
 export PGPASSWORD='replicauser_password'
 pg_basebackup -h cs-repro-postgres -p 5432 -U replicauser -D /var/lib/postgresql/data -Fp -Xs -R
 
+## Backup brings over the primary config, so we do not need it anymore.
 rm -rf /var/lib/postgresql/data/postgresql.conf
 
-cp /files/postgres/replica/baseconfig.conf /var/lib/postgresql/data/postgresql.conf
+## Bringing back in the replica specific config.
+cp /files/postgres/replica/${REPLICA_NAME}_postgres.conf /var/lib/postgresql/data/postgresql.conf
 
 exec pg_ctl -D /var/lib/postgresql/data start

files/postgres/replica/replica_1/init.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-
-set -e
-
-echo "include '/files/postgres/replica/replica_config.conf'" >> /var/lib/postgresql/data/postgresql.conf
-echo "include '/files/postgres/replica/replica_1/replica_1_config.conf'" >> /var/lib/postgresql/data/postgresql.conf
-
-cp /var/lib/postgresql/data/postgresql.conf /files/postgres/replica/replica_1/baseconfig.conf
-
-
-rm -rf /var/lib/postgresql/data/*
-export PGPASSWORD='replicauser_password'
-pg_basebackup -h cs-repro-postgres -p 5432 -U replicauser -D /var/lib/postgresql/data -Fp -Xs -R
-
-rm -rf /var/lib/postgresql/data/postgresql.conf
-
-cp /files/postgres/replica/replica_1/baseconfig.conf /var/lib/postgresql/data/postgresql.conf
-
-exec pg_ctl -D /var/lib/postgresql/data start

files/postgres/replica/replica_1/replica_1_config.conf

@@ -1,3 +0,0 @@
-# replication slot on sending server
-# This needs to be configured using the docs below for "Keeping the replica and primary in sync."
-primary_slot_name = 'replica_1_slot'

files/postgres/replica/replica_2/init.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-
-set -e
-
-echo "include '/files/postgres/replica/replica_config.conf'" >> /var/lib/postgresql/data/postgresql.conf
-echo "include '/files/postgres/replica/replica_2/replica_2_config.conf'" >> /var/lib/postgresql/data/postgresql.conf
-
-cp /var/lib/postgresql/data/postgresql.conf /files/postgres/replica/replica_2/baseconfig.conf
-
-
-rm -rf /var/lib/postgresql/data/*
-export PGPASSWORD='replicauser_password'
-pg_basebackup -h cs-repro-postgres -p 5432 -U replicauser -D /var/lib/postgresql/data -Fp -Xs -R
-
-rm -rf /var/lib/postgresql/data/postgresql.conf
-
-cp /files/postgres/replica/replica_2/baseconfig.conf /var/lib/postgresql/data/postgresql.conf
-
-exec pg_ctl -D /var/lib/postgresql/data start

files/postgres/replica/replica_2/replica_2_config.conf

@@ -1,3 +0,0 @@
-# replication slot on sending server
-# This needs to be configured using the docs below for "Keeping the replica and primary in sync."
-primary_slot_name = 'replica_2_slot'