Implement postgresql database handling into backend and basic init handling code, also include dev database docker compose file

.gitignore

@@ -1,2 +1,3 @@
 .venv
-__pycache__
+__pycache__
+postgres-data

docker-compose.yml

@@ -0,0 +1,28 @@
+services:
+
+  blorg-dev-db:
+    image: postgres:16-alpine
+    restart: always
+    volumes:
+      - ./postgres-data:/var/lib/postgresql/data
+    environment:
+      POSTGRES_USER: dev
+      POSTGRES_PASSWORD: dev
+      POSTGRES_DB: blorgdb
+    networks:
+      blorg-dev-db-network:
+        ipv4_address: 172.20.0.10
+    deploy:
+      resources:
+        limits:
+          cpus: '0.10'
+          memory: 128M
+
+networks:
+  blorg-dev-db-network:
+    driver: bridge
+    ipam:
+      config:
+        - subnet: 172.20.0.0/16
+        
+

main.py

@@ -5,6 +5,46 @@ from fastapi.middleware.cors import CORSMiddleware
 
 from pydantic import BaseModel
 
+import psycopg2
+
+dbconn = psycopg2.connect(database="blorgdb",
+                          host="172.20.0.10",
+                          user="dev",
+                          password="dev",
+                          port="5432")
+
+dbcursor = dbconn.cursor()
+
+dbcursor.execute("""
+DO $$
+BEGIN
+  IF (EXISTS (SELECT *
+                   FROM INFORMATION_SCHEMA.TABLES
+                   WHERE TABLE_NAME = 'users'))
+  THEN
+    RAISE NOTICE 'Table does exist!';
+  ELSE
+    RAISE NOTICE 'User Table does not exist! Creating table.';
+    CREATE TABLE users (
+      UserID int,
+      FirstName varchar(255),
+      LastName varchar(255),
+      PasswordHash varchar(255)
+    );
+  END IF;
+END;
+$$""")
+
+
+#print(dbcursor.fetchall())
+
+for notice in dbconn.notices:
+    print("(SQL SERVER) " + notice)
+
+dbconn.commit()
+dbcursor.close()
+dbconn.close()
+
 app = FastAPI()
 
 origins = [

requirements.txt

@@ -4,6 +4,7 @@ click==8.1.7
 fastapi==0.110.1
 h11==0.14.0
 idna==3.7
+psycopg2-binary==2.9.9
 pydantic==2.7.0
 pydantic_core==2.18.1
 sniffio==1.3.1