Павел Злыгостев. Деплоим наше Python-приложение

В этом докладе я расскажу, как задеплоить наше первое приложение с применением различных инструментов. Разберем популярную связку django+nginx+(gunicorn vs uwsgi)+supervisor, засунем всё в docker с docker-compose. Рассмотрим, как можно автоматизировать последующую доставку кода на сервер с помощью CI.

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1. Deploy your first python app By Pavel Zlygostev 2018 1
2. PLAN • DJANGO + NGINX + GUNICORN + SUPERVISOR • ANSIBLE • DOCKER , DOCKER-COMPOSE • CI !2
3. DJANGO + NGINX + GUNICORN + SUPERVISOR !3
4. Create sudo user adduser <username> apt install sudo usermod -aG sudo <username> !4
5. Install packages sudo apt update -y sudo apt upgrade -y sudo apt install python3-pip git -y sudo pip3 install pipenv !5
6. Install <name> project git clone <repo> <project> cd <project> pipenv shell pipenv install manage.py migrate/loaddata /collectstatic !6
7. Gunicorn gunicorn.org sudo pipenv install gunicorn touch conf/gunicorn chmod u+x conf/gunicorn !7
8. gunicorn.sh !8
9. Supervisor www.supervisord.org sudo apt install supervisor -y touch conf/supervisor sudo cp conf/supervisor.conf /etc/supervisor/conf.d/ sudo supervisorctl reread sudo supervisorctl update !9
10. supervisor.conf [program:<project>] command=/home/<username>/<project>/conf/gunicorn user=<username> autostart=true autorestart=true redirect_stderr=true stdout_logfile=/home/<username>/<project>/logs/gunicorn- error.log !10
11. Nginx https://www.nginx.com/ sudo apt install nginx -y touch conf/nginx.conf sudo cp conf/nginx.conf /etc/nginx/conf.d/ sudo nginx -t !11
12. nginx.conf upstream app_server { server unix:/home/username/project/run/gunicorn.sock.fail_timeout=0; } server { listen 80; keepalive_timeout 5; access_log /home/username/project/logs/nginx-access.log; error_log /home/username/project/logs/nginx-error.log; location /static/ { alias /home/username/project/static/; expires 30d; } location / { try_files $uri @proxy_to_app; } location @proxy_to_app { proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $http_host; proxy_redirect off; proxy_pass http://app_server; } } !12
13. Finish him sudo systemctl enable supervisor sudo systemctl start supervisor sudo supervisorctl restart <project> sudo service nginx restart !13
14. Ansible ansible.com galaxy.ansible.com sudo pip install ansible ansible-galaxy install angstwad.docker_ubuntu ansible-playbook -i host site.yml !14
15. #host [server] ip #site.yml --- - name: Run docker.ubuntu hosts: server remote_user: root roles: - angstwad.docker_ubuntu 
 !15 Ansible files
16. Docker docker.com hub.docker.com usermod -aG docker <username> sudo docker-compose up —build docker login docker build -t <name_image> . docker images docker tag <hash> name/web docker push name/web !16
17. Dockerfile FROM python:3.6-alpine ENV PYTHONUNBUFFERED 1 RUN mkdir /project WORKDIR /project RUN apk update && \ apk add --virtual build-deps gcc python3-dev musl-dev && \ apk add postgresql-dev ADD requirements.txt /project/ RUN pip3 install -r requirements.txt RUN apk add --update bash && rm -rf /var/cache/apk/* ADD . /project/ !17
18. Docker-compose version: ‘3' services: db: image: postgres ports: - 5432:5432 nginx: image: nginx ports: - 8000:8000 volumes: - ./static:/static - ./conf/nginx-docker.conf:/etc/nginx/conf.d/default.conf depends_on: - web web: image: 63phc/web command: gunicorn core.wsgi:application -w 2 -b :8000 command: python3 manage.py migrate volumes: - .:/project expose: - "8000" depends_on: - db !18
19. settings.py DATABASES = { 'default': { 'ENGINE': 'django.db.backends.postgresql_psycopg2', 'NAME': 'postgres', 'USER': 'postgres', 'PASSWORD': 'pass', 'HOST': 'db', 'PORT': '5432', } } !19
20. Fabric fabfile.org fab deploy !20
21. • Flask + ngrok !21
22. Django Nginx Supervisor Gunicorn Flask Apache uWSGI !22
23. Benchmark Benchmark !23
24. CI • Gitlab • Travis • Jenkins • TeamCity
25. Links • https://www.digitalocean.com/community/tutorials/how- to-set-up-django-with-postgres-nginx-and-gunicorn-on- ubuntu-16-04 https://habr.com/post/316054/ !25
26. THANK