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docker+pyenv-virtualenv+uwsgi+djangoで既存アプリをデプロイする

Last updated at Posted at 2016-10-27

はじめに

当記事はdocker、python、uwsgi、djangoについて、それぞれ単体ならばある程度扱える方を対象にしています。

目的

dockerコンテナとして一つのアプリケーションコンテナを作成し、そこに複数のアプリケーションをデプロイしたい。

  • アプリケーションごとにpythonのバージョンを切り替えたい
  • Dockerfileをほぼフルスクラッチかつなるべく楽にやりたい

手法

以下の手法により実現しました。

./
├── Dockerfile
├── data
│   ├── hogehogeapp1
│   │   ├── hogehogeapp1
│   │   │   └──wsgi.py
│   │   ├── data
│   │   ├── db.sqlite3
│   │   └── manage.py
│   ├── hogehogeapp2
│   │   ├── hogehogeapp2
│   │   │   └──wsgi.py
│   │   ├── data
│   │   ├── db.sqlite3
│   │   └── manage.py
│   ├── hogehogeapp1.ini
│   └── hogehogeapp2.ini
└── init.sh
Dockerfile
FROM ubuntu:xenial #FROM ubuntu-xenial
MAINTAINER erscl

RUN apt-get -y update
RUN apt-get upgrade -yV
RUN apt-get update && apt-get install -y git gcc make openssl libssl-dev libbz2-dev libreadline-dev libsqlite3-dev

RUN cd /usr/local &&\
git clone git://github.com/yyuu/pyenv.git ./pyenv &&\
mkdir -p ./pyenv/versions ./pyenv/shims &&\
cd /usr/local/pyenv/plugins/ &&\
git clone git://github.com/yyuu/pyenv-virtualenv.git

RUN echo 'export PYENV_ROOT="/usr/local/pyenv"' | tee -a /etc/profile.d/pyenv.sh
RUN echo 'export PATH="${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}"' | tee -a /etc/profile.d/pyenv.sh
RUN export PYENV_ROOT="/usr/local/pyenv" &&\
export PATH="${PYENV_ROOT}/shims:${PYENV_ROOT}/bin:${PATH}" &&\
pyenv install -v 2.7.12 &&\
pyenv install -v 3.5.2 &&\
pyenv virtualenv 2.7.12 uwsgi-2.7 &&\
pyenv global uwsgi-2.7 &&\
pip install django==1.8.* django-bootstrap django-bootstrap-form django-registration uwsgi &&\
pyenv virtualenv 3.5.2 uwsgi-3.5 &&\
pyenv global uwsgi-3.5 &&\
pip install django django-bootstrap django-bootstrap-form uwsgi

RUN groupadd -g 1000 uwsgi && \
    useradd -g uwsgi -m -s /bin/bash uwsgi

RUN mkdir -p /var/log/uwsgi && chown uwsgi /var/log/uwsgi

RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

COPY init.sh /opt/init.sh

EXPOSE 8801 8802

CMD ["/bin/bash","/opt/init.sh"]
init.sh
source /etc/profile.d/pyenv.sh
sudo -u uwsgi /usr/local/pyenv/versions/uwsgi-2.7/bin/uwsgi --ini /opt/data/hogehogeapp1.ini
sudo -u uwsgi /usr/local/pyenv/versions/uwsgi-3.5/bin/uwsgi --ini /opt/data/hogehogeapp2.ini
tail -f /dev/null
data/hogehogeapp1.ini
[uwsgi]
http=x1.x2.x3.x4:8801
chdir=/opt/data/hogehogeapp1
wsgi-file=/opt/data/hogehogeapp1/hogehogeapp1/wsgi.py
module=hogehogeapp.wsgi:application
master=True
pidfile=/var/run/hogehogeapp1.pid
vacuum=True
max-requests=5000
daemonize=/var/log/uwsgi/hogehogeapp1.log
data/hogehogeapp2.ini
[uwsgi]
http=x1.x2.x3.x4:8802
chdir=/opt/data/hogehogeapp2
wsgi-file=/opt/data/hogehogeapp2/hogehogeapp2/wsgi.py
module=hogehogeapp.wsgi:application
master=True
pidfile=/var/run/hogehogeapp2.pid
vacuum=True
max-requests=5000
daemonize=/var/log/uwsgi/hogehogeapp2.log

コンテナの起動時に --volume /abs_path/data:/opt/data を追加し、起動します

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