Avoid using default postgres port

docs/docs/self-hosting/guides/external-s3.md

@@ -9,11 +9,11 @@ description:
 
 > [!NOTE]
 >
-> This is a community contributed guide, and some of these steps might be out of
-> sync with the upstream documentation. If something is not working correctly,
-> please also see the latest
-> [READMEs](https://github.com/ente-io/ente/blob/main/server/README.md) in the
-> repository and/or other guides in [self-hosting](/self-hosting/).
+> This is a community contributed guide, and some of these steps ~~might be~~
+> ARE out of sync with the upstream changes. This document is retained for
+> reference purposes, but if something is not working correctly, please see the
+> latest [READMEs](https://github.com/ente-io/ente/blob/main/server/README.md)
+> in the repository and/or other guides in [self-hosting](/self-hosting/).
 
 This guide is for self hosting the server and the web application of Ente Photos
 using docker compose and an external S3 bucket. So we assume that you already

server/compose.yaml

@@ -34,9 +34,8 @@ services:
 
   postgres:
     image: postgres:15
-    # Change the postgres port here
     ports:
-      - 5432:5432
+      - 12432:5432
     environment:
       POSTGRES_USER: pguser
       POSTGRES_PASSWORD: pgpass
@@ -96,7 +95,7 @@ configs:
     content: |
       db:
           host: postgres
-          port: 5432
+          port: 12432
           name: ente_db
           user: pguser
           password: pgpass