diff --git a/.github/ISSUE_TEMPLATE/bug-template.md b/.github/ISSUE_TEMPLATE/bug-template.md
new file mode 100644
index 0000000..6ccc7ff
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/bug-template.md
@@ -0,0 +1,28 @@
+---
+name: Bug Template
+about: 버그 템플릿
+title: ''
+labels: ''
+assignees: ''
+---
+
+## 📝 개요 및 증상
+
+- 버그 발생 상황:
+- 기대한 동작
+    - (어떻게 동작할 것이라고 기대했는지 작성합니다.)
+- 실제 동작
+    - (실제로 어떻게 동작했는지 작성합니다.)
+
+<br>
+
+## 📸 스크린샷 (필요 시)
+
+<br>
+
+## 🐛 버그 재현 방법
+
+1. '...'에 간다.
+2. '....'를 클릭한다.
+3. '....'까지 스크롤을 내린다.
+4. 에러를 확인한다.
\ No newline at end of file
diff --git a/.github/ISSUE_TEMPLATE/feature-template.md b/.github/ISSUE_TEMPLATE/feature-template.md
new file mode 100644
index 0000000..d17fd4b
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/feature-template.md
@@ -0,0 +1,20 @@
+---
+name: Feature Template
+about: 기능 구현 작성 템플릿
+title: ''
+labels: ''
+assignees: ''
+---
+
+## 📝 구현 목록
+
+- [ ] 작업1
+- [ ] 작업2
+    - [ ] 작업 2-1
+    - [ ] 작업 2-2
+
+<br>
+
+## 💡 참고자료
+
+- (없다면 이 항목을 지워주세요.)
\ No newline at end of file
diff --git a/.github/ISSUE_TEMPLATE/refactor-template.md b/.github/ISSUE_TEMPLATE/refactor-template.md
new file mode 100644
index 0000000..fcba6e9
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE/refactor-template.md
@@ -0,0 +1,26 @@
+---
+name: Refactor Template
+about: 리팩토링할 기능 템플릿
+title: ''
+labels: ''
+assignees: ''
+---
+
+## 🤔 코드 개선 필요성
+
+- (코드를 어떤 이유에서 변경하는지)
+
+<br>
+
+## 📝 구현 목록
+
+- [ ] 구현 내용1
+    - [ ] 세부 구현 내용
+- [ ] 구현 내용2
+    - [ ] 세부 구현 내용
+
+<br>
+
+## 💡 참고자료
+
+- (없다면 지워도 됩니다!)
\ No newline at end of file
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 0000000..6b34252
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,24 @@
+## 🎯 관련 이슈
+close 
+
+## 🚀 어떤 기능을 개발했나요?
+- 
+
+### 🕶️ 어떻게 해결했나요?
+- 
+
+<!-- optional
+### 🧐 어떤 부분에 집중하여 리뷰해야 할까요?
+- 
+
+### 🧪 테스트
+- [ ] 본 PR에서 진행한 테스트 시나리오 작성해주세요(테스트코드 포함 시 제외 가능)
+- 
+
+### 📚 문서화
+- [ ] (API 개발 업무라면) API 문서 업데이트 하셨나요?
+
+### 📑 참고자료
+- 
+
+-->
diff --git a/.github/workflows/deploy-lambda.yaml b/.github/workflows/deploy-lambda.yaml
new file mode 100644
index 0000000..22be398
--- /dev/null
+++ b/.github/workflows/deploy-lambda.yaml
@@ -0,0 +1,75 @@
+name: Deploy to Lambda (ECR)
+
+on:
+  push:
+    branches: [ "develop", "main" ]
+
+# OIDC 인증을 위한 권한 설정
+permissions:
+  id-token: write 
+  contents: read
+
+jobs:
+  deploy:
+    name: Build, Push to ECR, and Deploy to Lambda
+    runs-on: ubuntu-latest
+
+    # 브랜치에 따라 사용할 환경 선택
+    environment: ${{ github.ref == 'refs/heads/main' && 'PROD' || 'DEV' }}
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    # AWS 자격 증명 설정
+    - name: Configure AWS credentials
+      uses: aws-actions/configure-aws-credentials@v4
+      with:
+        role-to-assume: ${{ vars.AWS_ROLE_ARN }} 
+        aws-region: ${{ vars.AWS_REGION }}
+
+    # Amazon ECR 로그인
+    - name: Login to Amazon ECR
+      id: login-ecr
+      uses: aws-actions/amazon-ecr-login@v2
+
+    # Docker 이미지 빌드 및 푸시
+    - name: Build, tag, and push image to Amazon ECR
+      id: build-image
+      env:
+        ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
+        ECR_REPOSITORY: ${{ vars.ECR_REPOSITORY_NAME }}
+        IMAGE_TAG: ${{ github.sha }}
+      run: |
+        docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG -t $ECR_REGISTRY/$ECR_REPOSITORY:latest -f Dockerfile .
+        
+        docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
+        docker push $ECR_REGISTRY/$ECR_REPOSITORY:latest
+        
+        echo "image_uri=$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG" >> $GITHUB_OUTPUT
+
+    # Lambda 함수 업데이트
+    - name: Deploy new image to AWS Lambda
+      run: |
+        aws lambda update-function-code \
+          --function-name ${{ vars.LAMBDA_FUNCTION_NAME }} \
+          --image-uri ${{ steps.build-image.outputs.image_uri }}
+
+    # 코드 업데이트가 완료될 때까지 대기
+    - name: Wait for Lambda function update to complete
+      run: |
+        aws lambda wait function-updated \
+          --function-name ${{ vars.LAMBDA_FUNCTION_NAME }}
+
+    # Lambda 환경 변수 설정
+    - name: Update Lambda Environment Variables
+      run: |
+        aws lambda update-function-configuration \
+          --function-name ${{ vars.LAMBDA_FUNCTION_NAME }} \
+          --environment "Variables={ \
+            REGION_NAME=${{ vars.AWS_REGION }}, \
+            LAMBDA_FUNCTION_NAME=${{ vars.LAMBDA_FUNCTION_NAME }}, \
+            ECR_REPOSITORY_NAME=${{ vars.ECR_REPOSITORY_NAME }}, \
+            BUCKET_NAME=${{ vars.BUCKET_NAME }}, \
+            RESIZED_BUCKET=${{ vars.RESIZED_BUCKET }} \
+          }"
\ No newline at end of file
diff --git a/.github/workflows/dev-deploy-lambda.yaml b/.github/workflows/dev-deploy-lambda.yaml
deleted file mode 100644
index a948a03..0000000
--- a/.github/workflows/dev-deploy-lambda.yaml
+++ /dev/null
@@ -1,49 +0,0 @@
-name: Dev Deploy ECR
-
-on:
-  push:
-    branches: [ "main" ]
-
-env:
-  AWS_REGION: ${{ vars.AWS_REGION }}
-  ECR_REPOSITORY: ${{ vars.ECR_REPOSITORY_NAME }}
-  LAMBDA_FUNCTION_NAME: ${{ vars.LAMBDA_FUNCTION_NAME }}
-
-jobs:
-  deploy:
-    name: Build, Push to ECR, and Deploy to Lambda
-    runs-on: ubuntu-latest
-
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v4
-
-    - name: Configure AWS credentials
-      uses: aws-actions/configure-aws-credentials@v4
-      with:
-        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
-        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-        aws-region: ${{ env.AWS_REGION }}
-
-    - name: Login to Amazon ECR
-      id: login-ecr
-      uses: aws-actions/amazon-ecr-login@v2
-
-    - name: Build, tag, and push image to Amazon ECR
-      id: build-image
-      env:
-        ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
-        IMAGE_TAG: ${{ github.sha }}
-      run: |
-        docker build -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG -t $ECR_REGISTRY/$ECR_REPOSITORY:latest -f Dockerfile .
-        
-        docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
-        docker push $ECR_REGISTRY/$ECR_REPOSITORY:latest
-        
-        echo "image_uri=$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG" >> $GITHUB_OUTPUT
-
-    - name: Deploy new image to AWS Lambda
-      run: |
-        aws lambda update-function-code \
-          --function-name $LAMBDA_FUNCTION_NAME \
-          --image-uri ${{ steps.build-image.outputs.image_uri }}
\ No newline at end of file
diff --git a/lambda_compare.py b/lambda_compare.py
index f55aa06..87967e6 100644
--- a/lambda_compare.py
+++ b/lambda_compare.py
@@ -3,13 +3,14 @@
 import base64
 import re
 import time
+import os
 from urllib.parse import quote_plus
 
-REGION_NAME = "ap-northeast-2"
-BUCKET_NAME = "snorose-bucket"
+REGION_NAME = os.environ.get('REGION_NAME')
+BUCKET_NAME = os.environ.get('BUCKET_NAME')
 TEST_KEY = "post-attachment/1718321/test_video.mp4" 
-FUNC_CONSOLE = "CreateOptimizedContentAttachment"
-FUNC_IMAGE = "CreateOptimizedContentAttachmentECR"
+LAMBDA_FUNCTION_NAME = os.environ.get('LAMBDA_FUNCTION_NAME')
+ECR_REPOSITORY_NAME = os.environ.get('ECR_REPOSITORY_NAME')
 
 client = boto3.client('lambda', region_name=REGION_NAME)
 
diff --git a/lambda_function.py b/lambda_function.py
index b7edc47..c4fc961 100644
--- a/lambda_function.py
+++ b/lambda_function.py
@@ -7,7 +7,7 @@
 from PIL import Image, ImageOps
 
 s3_client = boto3.client('s3')
-resized_bucket = 'snorose-bucket-resized'
+resized_bucket = os.environ.get('RESIZED_BUCKET')
 
 IMG_EXT_LIST = ("jpg","jpeg","png","jfif","bmp","webp")
 VDO_EXT_LIST = ("mp4","mov")