chat DB 구축

- docker
- mysql:8.0
- mysql-migration 사용

#1

README.md

@@ -1,2 +1,36 @@
 # Letters-Chat
 Letter Chatting Server
+
+
+# letters-graphQL
+
+## env 설정
+
+```
+SECRET_KEY=[]
+API_URL=[]
+DB_HOST=[]
+DB_user=[]
+DB_password=[]
+```
+
+- JWT SECRET KEY 설정
+- API URL 설정
+- DB 정보 설정
+
+--- 
+
+## DB 설치 및 초기화
+
+- Docker 설치 후
+
+```shell
+npm run db:init
+npm run db:migrate
+```
+
+
+### migration 추가
+``` shell
+npx babel-node migration.js add migration [migration name]
+```

docker-compose.yml

@@ -0,0 +1,9 @@
+version: "3.0"
+services:
+  chat_db:
+    container_name: letters_chat_db
+    build: ./docker
+    ports:
+      - "${DB_PORT}:3306"
+    environment:
+      MYSQL_ROOT_PASSWORD: ${DB_PASSWORD}

docker/0_create_db.sql

@@ -0,0 +1 @@
+CREATE DATABASE letters_chat

docker/dockerfile

@@ -0,0 +1,3 @@
+FROM mysql:8.0
+
+COPY 0_create_db.sql /docker-entrypoint-initdb.d

migration.js

@@ -0,0 +1,18 @@
+import mysql from 'mysql2';
+import migration from 'mysql-migrations';
+
+import dotenv from 'dotenv';
+dotenv.config();
+
+const { DB_HOST, DB_PORT, DB_USER, DB_PASSWORD } = process.env;
+
+const connection = mysql.createPool({
+  connectionLimit: 10,
+  host: DB_HOST,
+  port: DB_PORT,
+  user: DB_USER,
+  password: DB_PASSWORD,
+  database: 'letters_chat',
+});
+
+migration.init(connection, __dirname + '/migrations');