feat: add postgres docker config

Author: tqmvt

.gitignore

@@ -17,4 +17,9 @@
 .idea/
 vendor/
 .vscode/
-tmp/
+tmp/
+
+.DS_Store
+main
+
+docker/data/

docker/Dockerfile

@@ -0,0 +1,7 @@
+# Use the official PostgreSQL image as the base image
+FROM postgres:latest
+
+# Set the environment variables
+ENV POSTGRES_USER=myuser
+ENV POSTGRES_PASSWORD=mypassword
+ENV POSTGRES_DB=mydatabase

docker/docker-compose.yml

@@ -0,0 +1,11 @@
+version: '3.9'
+services:
+  postgres:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    container_name: my-postgres
+    ports:
+      - "5432:5432"
+    volumes:
+      - ./data:/var/lib/postgresql/data