diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..0d88576
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,15 @@
+FROM python:3.10-slim-buster
+
+WORKDIR /usr/src/app
+
+ENV PYTHONDONTWRITEBYTECODE 1
+ENV PYTHONUNBUFFERED 1
+
+COPY . /usr/src/app
+
+# install python dependencies
+RUN pip install --upgrade pip 
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 6. Python main.py 파일을 실행합니다.
+CMD ["python", "main.py"]
\ No newline at end of file
diff --git a/README.md b/README.md
index 818106e..b826c27 100644
--- a/README.md
+++ b/README.md
@@ -25,9 +25,8 @@ make.com을 이용해서 만든 AutoMation Flow를 Python을 이용하여 변환
 * 워드프레스 등록 플로우 코드 작성(기능 테스트 완료 - 연결 필요).
 
 ### 코드 리팩토링.
-* 환경변수 호출 모듈분리(완료)
-* 데이터베이스 조회 모듈분리(완료)
-* OpenAI 모듈 
+* 전체 리팩토링.
+* 모듈화, 패키지화.
 
 ## 코드 이슈
 ### 네이버 블로그 크롤링
diff --git a/main.py b/main.py
index d66346b..e1c3063 100644
--- a/main.py
+++ b/main.py
@@ -3,6 +3,7 @@ from package import GetConfig, MariaDB, ChangeTextToPost, WordPress
 import markdown
 
 # 2024-10-03 환경 변수 호출
+print('### Get values from .env')
 config = GetConfig()
 dict_data = config.get_config_as_dict()
 
diff --git a/package/GetConfig.py b/package/GetConfig.py
index d931a20..0f0100c 100644
--- a/package/GetConfig.py
+++ b/package/GetConfig.py
@@ -1,7 +1,13 @@
 import os
 from dotenv import load_dotenv
 
-load_dotenv(r'./.env.dev')
+# 우선순위: .env.prd > .env.dev > .env
+if os.path.exists('.env.prd'):
+    load_dotenv('.env.prd')
+elif os.path.exists('.env.dev'):
+    load_dotenv('.env.dev')
+else:
+    load_dotenv('.env')  # 기본 .env 파일
 
 class GetConfig:
     def __init__(self):
diff --git a/requirements.txt b/requirements.txt
index c2239f0..0d8529e 100644
Binary files a/requirements.txt and b/requirements.txt differ
diff --git a/sample.env.dev b/sample.env.dev
index 93d846c..877632b 100644
--- a/sample.env.dev
+++ b/sample.env.dev
@@ -4,6 +4,6 @@ DB_PASSWORD=demo
 DB_NAME=demo
 OPENAI_API_KEY=demo
 WP_URL='https://www.example.com'
-WP_USERNAME='demo'
+WP_USER='demo'
 WP_API_KEY='demo'
-reference_style="문장"
\ No newline at end of file
+WP_POST_STYLE="문장"
\ No newline at end of file
diff --git a/version b/version
new file mode 100644
index 0000000..6c6aa7c
--- /dev/null
+++ b/version
@@ -0,0 +1 @@
+0.1.0
\ No newline at end of file