Add docker files

Author: EasySouls

.env.example

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+DATABASE_URL="postgresql://postgres:postgres@localhost:5432/ticketing?schema=public"
+BACKEND_PORT=3300
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres
+POSTGRES_DB=ticketing
+POSTGRES_PORT=5432

Dockerfile

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+FROM node:22-alpine
+
+RUN apk update && apk upgrade && apk add bash
+
+WORKDIR /app
+
+COPY . .
+
+RUN npm install
+
+RUN npm run build
+
+CMD npm run start:prod

docker-compose.dev.yml

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+name: ticketing-dev-db
+
+services:
+  postgres:
+    image: postgres:latest
+    restart: always
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_DB: ${POSTGRES_DB}
+    ports:
+      - '${POSTGRES_PORT}:5432'
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+volumes:
+  postgres_data: {}

docker-compose.yml

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+name: ticketing-api
+
+services:
+  app:
+    build:
+      context: .
+    ports:
+      - "${BACKEND_PORT}:${BACKEND_PORT}"
+    env_file:
+      - .env
+    restart: always
+    networks:
+      - ticketing-network
+    depends_on:
+      - db
+
+  db:
+    image: postgres:latest
+    env_file:
+      - .env
+    restart: always
+    volumes:
+      - ticketing_db_folder:/var/lib/postgresql/data
+    networks:
+      - ticketing-network
+
+volumes:
+  ticketing_db_folder:
+
+networks:
+  ticketing-network: