Add postgres docker configuration

.gitignore

-
 /.idea/
-/php/admin/helper/settings.php
+client/settings.json
+
+docker/postgres/data
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docker/postgres/Dockerfile

+FROM postgres:12
+
+COPY roadmaps.sql /docker-entrypoint-initdb.d/roadmaps.sql
\ No newline at end of file

docker/postgres/docker-compose.yaml

+version: '3.7'
+
+services:
+  postgres:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    environment:
+      POSTGRES_USER: roadmaps
+      POSTGRES_PASSWORD: 12345
+      POSTGRES_DB: roadmaps
+    ports:
+      - "5433:5432"
+    volumes:
+      - "./data:/var/lib/postgresql/data"
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