无法创建/etc/nginx/nginx.conf：目录不存在且启动容器导致“ exec：\supervisord\”：在$ PATH中找不到可执行文件。 [英] cannot create /etc/nginx/nginx.conf: Directory nonexistent and starting container caused "exec: \"supervisord\": executable file not found in $PATH"

问题描述

我正在构建docker映像以使用uwsgi / nginx部署flask应用程序。

I am building docker image to deploy flask app with uwsgi/nginx.

此处是用于创建相同docker容器的相关文件

Here are relevant file for to create a docker container for same

Dockerfile 内容

FROM python:3.6

MAINTAINER Dockerfiles

RUN mkdir /trell-ds-framework
WORKDIR /trell-ds-framework
ADD . /trell-ds-framework/
RUN python setup.py bdist_wheel
# install uwsgi now because it takes a little while
RUN pip3 install uwsgi
# copy over our requirements.txt file
# upgrade pip and install required python packages
RUN pip3 --no-cache-dir install -U pip
RUN apt-get install -y ca-certificates
RUN apt-get update && apt-get -y install cron
RUN pip3 --no-cache-dir install -r requirements.txt
RUN python -c "import nltk;nltk.download('stopwords')"
# 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/


# add (the rest of) our code

EXPOSE 80
CMD ["supervisord"]

supervisor_app.conf 内容

[supervisord]
nodaemon=true

[program:uwsgi]
command = /usr/local/bin/uwsgi --ini /trell-ds-framework/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

nginx_app.conf 内容

server {
    listen 80 default_server;
    server_name ip_address;

    # max upload size
    client_max_body_size 75M;   # adjust to taste

    location / {
        include uwsgi_params;
        uwsgi_pass unix:///trell-ds-framework/app.sock;
    }
}

uwsgi.ini 文件内容

[uwsgi]
callable = app
chdir = /trell-ds-framework
wsgi-file = /trell-ds-framework/wsgi.py
socket = /trell-ds-framework/app.sock
master = true
processes = 2
chmod-socket = 666
enable-threads = true

当我尝试在trell-ds-中构建docker映像时框架目录（使用命令 docker build -t ds_backend。，我在Dockerfile的第13/17行出现以下错误

when I am trying to build the docker image in trell-ds-framework directory (using command docker build -t ds_backend . , I am getting following error on line 13/17 of Dockerfile

Step 13/17 : RUN echo "daemon off;" >> /etc/nginx/nginx.conf
 ---> Running in 1ee5628a4bc2
/bin/sh: 1: cannot create /etc/nginx/nginx.conf: Directory nonexistent
The command '/bin/sh -c echo "daemon off;" >> /etc/nginx/nginx.conf' returned a non-zero code: 2

我检查了此 / etc / nginx /我的虚拟机中存在nginx.conf 文件否。

我正在从此教程-使用docker 使用uwsgi / nginx部署flask应用程序，这似乎可以正常工作。

I am taking help from this Tutorial - Deploy flask app with uwsgi/nginx using docker which seems to be working. But in my case its giving that error.

在遵循注释说明后，我可以成功构建docker image。现在，我在下面收到此错误。

After following comments instruction I could build docker image successfully. Now I am getting this error below.

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "exec: \"supervisord\": executable file not found in $PATH": unknown.

有人可以在这里帮助我吗？

Can anybody help me out here. Thanks in advance.

PS：我对这些事情很陌生。

PS: I am very new to these things. Any leads highly appreciated.

推荐答案

由于几乎不可能管理带有注释的答案，因此我将发布<$ c的前景$ c> supervisor_app.conf 文件在这里：

Since managing answers with comments is nearly impossible, I'll post the outlook of the supervisor_app.conf file here:

[program:nginx]
command = /usr/sbin/nginx -g "daemon off;"
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0

我认为这是您所需要的。

I think it's what you need.

编辑：我刚刚看到有关主管未找到的评论。似乎您尚未将其安装在Dockerfile中。添加方法如下：

I just saw the comment about supervisor not being found. It seems that you haven't installed it in Dockerfile. Here's how to add it:

apt-get install -y supervisor

您可以在以下步骤之一中仅添加软件包名称：

You can add just the package name in one of the steps, like this:

RUN apt-get install -y ca-certificates supervisor

请注意，您已经有了该行，而没有 supervisor 。

Note that you already have that line, just without supervisor.

EDIT2：根据@thsutton的回答，您还需要添加 nginx 软件包，就像您对主管所做的一样。

As per @thsutton's answer, you also need to add nginx package, the same way you did for supervisor.

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