refactor: self hosting setup (#411)

* merge-commit: self hosted updates

* dev: updates in self hosting setup

* dev: update script to get the instance IP

* dev: update script to generate backend secret key

docker-compose.yml

@@ -9,10 +9,10 @@ services:
     ports:
       - 80:80
     depends_on:
-      # - plane-web
+      - plane-web
       - plane-api
   db:
-    image: postgres:12-alpine
+    image: postgres:15.2-alpine
     container_name: db
     restart: always
     volumes:
@@ -20,7 +20,8 @@ services:
     environment:
       POSTGRES_USER: plane
       POSTGRES_DB: plane
-      POSTGRES_PASSWORD: plane
+      POSTGRES_PASSWORD: xyzzyspoon
+      PGDATA : /var/lib/postgresql/data
     command: postgres -c 'max_connections=1000'
     ports:
       - 5432:5432