sudo apt-get update && sudo apt-get upgrade -y

sudo apt-get install -y apt-transport-https ca-certificates  curl gnupg  lsb-release

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

echo   "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

# Docker 설치
sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

# Docker 서비스 시작 및 자동 실행 설정

sudo systemctl start docker
sudo systemctl enable docker

# 현재 사용자를 docker 그룹에 추가
sudo usermod -aG docker $USER
newgrp docker

docker run hello-world

Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
e6590344b1a5: Pull complete
Digest: sha256:bfbb0cc14f13f9ed1ae86abc2b9f11181dc50d779807ed3a3c5e55a6936dbdd5
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/

For more examples and ideas, visit:
https://docs.docker.com/get-started/

sudo apt-get install -y apache2 apache2-dev

sudo a2enmod proxy
sudo a2enmod proxy_http

sudo nano /etc/apache2/sites-available/file-share.conf

<VirtualHost *:80>
    ServerName localhost
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html

    ProxyPass / http://127.0.0.1:8000/
    ProxyPassReverse / http://127.0.0.1:8000/

    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

sudo a2ensite file-share.conf
sudo a2dissite 000-default.conf
sudo systemctl restart apache2

sudo systemctl status apache2

webnautes@webnautes-VirtualBox:~$ sudo systemctl status apache2
● apache2.service - The Apache HTTP Server
    Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor prese>
    Active: active (running) since Mon 2025-03-03 22:29:22 KST; 8s ago
      Docs: https://httpd.apache.org/docs/2.4/
    Process: 5923 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SU>
  Main PID: 5930 (apache2)
      Tasks: 55 (limit: 19099)
    Memory: 5.6M
        CPU: 42ms
    CGroup: /system.slice/apache2.service
            ├─5930 /usr/sbin/apache2 -k start
            ├─5931 /usr/sbin/apache2 -k start
            └─5932 /usr/sbin/apache2 -k start

3월 03 22:29:22 webnautes-VirtualBox systemd[1]: Starting The Apache HTTP Serv>
3월 03 22:29:22 webnautes-VirtualBox apachectl[5929]: AH00558: apache2: Could >
3월 03 22:29:22 webnautes-VirtualBox systemd[1]: Started The Apache HTTP Serve>

sudo apache2ctl configtest

webnautes@webnautes-VirtualBox:~$ sudo apache2ctl configtest
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message
Syntax OK

# 필요한 패키지 설치
sudo apt-get install -y python3-venv

# 프로젝트 디렉토리 생성
mkdir ~/myapp
cd ~/myapp

# 가상환경 생성 및 활성화
python3 -m venv venv
source venv/bin/activate

pip install flask gunicorn

nano app.py

from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello():
    return 'Hello, World! Docker + Apache + Gunicorn is working!'

if __name__ == '__main__':
    app.run()

nano  gunicorn.conf.py

bind = '127.0.0.1:8000'  # Gunicorn이 리스닝할 주소와 포트
workers = 4              # 동시에 처리할 요청 수를 위한 워커 프로세스 개수
worker_class = 'sync'    # 동기식 워커 타입 (필요에 따라 async 등으로 변경 가능)
worker_connections = 1000  # 각 워커당 처리 가능한 최대 연결 수
accesslog = 'access.log'    # 접근 로그 파일 경로
errorlog = 'error.log'      # 에러 로그 파일 경로

nano  Dockerfile

FROM python:3.9

WORKDIR /app

# OS 패키지 업데이트와 Apache 설치
RUN apt-get update && apt-get install -y \
    apache2 \
    apache2-dev

# Python 의존성 설치를 위해 requirements.txt 복사 및 설치
COPY requirements.txt .
RUN pip install -r requirements.txt

# 프로젝트 파일 전체를 컨테이너의 작업 디렉토리로 복사
COPY . .

# Apache 사이트 설정 파일 교체
COPY apache.conf /etc/apache2/sites-available/000-default.conf
RUN a2enmod proxy proxy_http
RUN service apache2 restart

# 컨테이너 외부와 통신할 포트 지정
EXPOSE 80

# 시작 스크립트 복사 및 실행 권한 부여
COPY start.sh .
RUN chmod +x start.sh

# 컨테이너 실행 시 시작 스크립트 실행
CMD ["./start.sh"]

nano  requirements.txt

flask
gunicorn

nano start.sh

#!/bin/bash
service apache2 start
gunicorn -c gunicorn.conf.py app:app

nano apache.conf

<VirtualHost *:80>
    ServerName localhost
    ProxyPass / http://127.0.0.1:8000/
    ProxyPassReverse / http://127.0.0.1:8000/
</VirtualHost>

docker build -t myapp .

# 기존 Apache 서버 중지
sudo systemctl stop apache2

# Docker 컨테이너 실행 (호스트 80번 포트와 컨테이너의 80번 포트를 연결)
docker run -d -p 80:80 --name myapp_container myapp

docker ps
docker logs myapp_container

docker exec myapp_container tail -f /var/log/apache2/error.log
docker exec myapp_container tail -f /app/error.log

curl http://localhost

# 컨테이너 중지
docker stop myapp_container

# 컨테이너 제거
docker rm myapp_container

# 이미지 제거 (필요 시)
docker rmi myapp