[英]Use Tesseract 4 - Docker Container from uwsgi-nginx-flask-docker
[英]Setting flask app with uwsgi and nginx in docker container
我正在嘗試在Docker容器中運行帶有flask,uwsgi和nginx的Docker容器。
我的Dockerfile看起來像這樣:
FROM ubuntu:16.04
MAINTAINER Dockerfiles
# Install required packages and remove the apt packages cache when done.
RUN apt-get update && \
apt-get upgrade -y && \
apt-get install -y \
...
# install uwsgi
RUN pip3 install uwsgi
# copy over requirements.txt file
COPY requirements.txt /home/docker/code/
# upgrade pip and install required python packages
RUN pip3 --no-cache-dir install -U pip
RUN pip3 --no-cache-dir install -r /home/docker/code/requirements.txt
# add (the rest of) our code
COPY ./app /home/docker/code/
# create a systemd unit file
COPY ./app.service /etc/systemd/system/ # Think the problem is here
# start the uwsgi service
RUN systemctl start app # This is not working
RUN systemctl enable app
# setup all the configfiles
COPY nginx_app /etc/nginx/sites-available/
# enable nginx server block
RUN ln -s /etc/nginx/sites-available/nginx_app /etc/nginx/sites-enabled
# validate syntax
CMD ["nginx", "-t"]
# restart nginx
RUN systemctl restart nginx
# allow nginx
RUN ufw allow 'Nginx Full'
然后是我的app.service:
[Unit]
Description=uWSGI instance to serve app
After=network.target
[Service]
User=docker
Group=www-data
WorkingDirectory=/home/docker/code
ExecStart=/usr/local/bin/uwsgi --ini uwsgi.ini
[Install]
WantedBy=multi-user.target
Nginx配置
server {
listen 80;
server_name my_server_ip;
# max upload size
client_max_body_size 75M; # adjust to taste
location / {
include uwsgi_params;
uwsgi_pass unix:/home/docker/code/myproject.sock;
}
然后是我的uwsgi.ini
[uwsgi]
module = wsgi:app
master = true
processes = 5
socket = app.sock
chmod-socket = 664
vacuum = true
die-on-term = true
但是當我嘗試構建它時,出現此錯誤
步驟12:運行systemctl啟動應用
--->在79a22c2629db中運行
無法連接到總線:沒有這樣的文件或目錄
INFO [0022]命令[/ bin / sh -c systemctl start app]返回了非零代碼:1
我正在閱讀,我認為問題出在systemd。 我應該使用主管。 但是我不知道如何去做。
在“普通”服務器上,我可以運行這些命令,並且可以運行,但在Docker容器中則無法運行。
我的“唯一”問題是我必須使用uwsgi和nginx運行我的應用程序,但我不明白。
我在Internet上閱讀了許多帖子和教程,也嘗試更改此項目,但它仍然無法正常工作,我更喜歡使用我的dockerfile(此文件),因為這是我的理解。
我找到了答案。
我和主管一起解決了。
# install uwsgi now because it takes a little while
RUN pip3 install uwsgi
# setup all the configfiles
RUN echo "daemon off;" >> /etc/nginx/nginx.conf
COPY nginx_app.conf /etc/nginx/sites-available/default
COPY supervisor_app.conf /etc/supervisor/conf.d/
# copy over our requirements.txt file
COPY requirements.txt /home/docker/code/
# upgrade pip and install required python packages
RUN pip3 --no-cache-dir install -U pip
RUN pip3 --no-cache-dir install -r /home/docker/code/requirements.txt
# add (the rest of) our code
COPY ./app /home/docker/code/
EXPOSE 80
CMD ["supervisord"]
然后supervisor_app.conf看起來像
[supervisord]
nodaemon=true
[program:uwsgi]
command = /usr/local/bin/uwsgi --ini /home/docker/code/uwsgi.ini
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0
[program:nginx]
command = /usr/sbin/nginx
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0
uwsg.ini
[uwsgi]
callable = app
chdir = /home/docker/code/
wsgi-file = /home/docker/code/wsgi.py
socket = /home/docker/code/app.sock
master = true
processes = 2
chmod-socket = 666
enable-threads = true
和我的nginx_app.conf
server {
listen 80 default_server;
server_name my_ip;
# max upload size
client_max_body_size 75M; # adjust to taste
location / {
include uwsgi_params;
uwsgi_pass unix:///home/docker/code/app.sock;
}
}
就是這樣
您還可以使用docker-systemctl-replacement ,它專門用於允許在docker容器中使用與實際systemd受控機器上相同的systemctl命令。 作為CMD運行時,它將啟動所有已啟用的服務。
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