From 492130d84648355123ac11a5f7b16bd2c1678ae6 Mon Sep 17 00:00:00 2001
From: coltoneshaw <colton@theshaw.group>
Date: Fri, 29 Mar 2024 12:50:57 -0400
Subject: [PATCH] moved postgres primary setup

---
 docker-compose.yml                         | 57 +++-------------------
 files/postgres/primary/init.sh             |  3 ++
 files/postgres/primary/primary_config.conf | 25 ++++++++++
 3 files changed, 36 insertions(+), 49 deletions(-)
 create mode 100755 files/postgres/primary/init.sh
 create mode 100644 files/postgres/primary/primary_config.conf

diff --git a/docker-compose.yml b/docker-compose.yml
index 3bae22a..a6862c3 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,11 +1,6 @@
 services:
   postgres:
     container_name: cs-repro-postgres
-    environment:
-      - POSTGRES_USER=mmuser
-      - POSTGRES_PASSWORD=mmuser_password
-      - POSTGRES_DB=mattermost
-      - LISTEN_ADDRESS="*"
     image: postgres:14-alpine
     restart: unless-stopped
     ports:
@@ -19,11 +14,18 @@ services:
       - /var/run/postgresql
     volumes:
       - ./volumes/db/var/lib/postgresql/data:/var/lib/postgresql/data
+      - ./files/postgres/primary/init.sh:/docker-entrypoint-initdb.d/init.sh
+      - ./files/postgres/primary/primary_config.conf:/files/postgres/primary/primary_config.conf
     healthcheck:
       test: pg_isready -U mmuser -d mattermost
       interval: 10s
       timeout: 3s
       retries: 3
+    environment:
+      - POSTGRES_USER=mmuser
+      - POSTGRES_PASSWORD=mmuser_password
+      - POSTGRES_DB=mattermost
+      - LISTEN_ADDRESS="*"
   openldap:
     platform: linux/amd64
     container_name: cs-repro-openldap
@@ -160,47 +162,4 @@ services:
   #     - "3306"
   #     # Where our data will be persisted
   #   volumes:
-  #     - ./volumes/db/mysql:/var/lib/mysql
-
- # postgres-replica:
-  #   container_name: cs-repro-postgres-replica
-  #   environment:
-  #     - POSTGRES_USER=mmuser
-  #     - POSTGRES_PASSWORD=mmuser_password
-  #     # - POSTGRES_DB=mattermost
-  #     - LISTEN_ADDRESS="*"
-  #   image: postgres:13-alpine
-  #   restart: unless-stopped
-  #   ports:
-  #     - "5433:5432"
-  #   security_opt:
-  #     - no-new-privileges:true
-  #   pids_limit: 100
-  #   read_only: false
-  #   tmpfs:
-  #     - /tmp
-  #     - /var/run/postgresql
-  #   volumes:
-  #     # - ./volumes/db-replica/var/lib/postgresql/data:/var/lib/postgresql/data
-  #     - ./volumes/db-replica/data2:/var/lib/postgresql/data
-  # postgres-replica2:
-  #   container_name: cs-repro-postgres-replica2
-  #   environment:
-  #     - POSTGRES_USER=mmuser
-  #     - POSTGRES_PASSWORD=mmuser_password
-  #     # - POSTGRES_DB=mattermost
-  #     - LISTEN_ADDRESS="*"
-  #   image: postgres:13-alpine
-  #   restart: unless-stopped
-  #   ports:
-  #     - "5434:5432"
-  #   security_opt:
-  #     - no-new-privileges:true
-  #   pids_limit: 100
-  #   read_only: false
-  #   tmpfs:
-  #     - /tmp
-  #     - /var/run/postgresql
-  #   volumes:
-  #     # - ./volumes/db-replica2/var/lib/postgresql/data:/var/lib/postgresql/data
-  #     - ./volumes/db-replica2/data2:/var/lib/postgresql/data
\ No newline at end of file
+  #     - ./volumes/db/mysql:/var/lib/mysql
\ No newline at end of file
diff --git a/files/postgres/primary/init.sh b/files/postgres/primary/init.sh
new file mode 100755
index 0000000..e4906df
--- /dev/null
+++ b/files/postgres/primary/init.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+echo "include '/files/postgres/primary/primary_config.conf'" >> /var/lib/postgresql/data/postgresql.conf
\ No newline at end of file
diff --git a/files/postgres/primary/primary_config.conf b/files/postgres/primary/primary_config.conf
new file mode 100644
index 0000000..157ed14
--- /dev/null
+++ b/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
\ No newline at end of file