Nginx pointed to wrong directory with Docker on Windows

Question

I'm setting up a Laravel application with Docker, using a Docker image configuration I found here: https://blog.pusher.com/docker-for-development-laravel-php/

Now, this works fine on my Ubuntu machine (16.04), but on Window (10 Pro) I get a weird error. It first complains about not finding a composer.json file. Then, with each request I make to localhost:8000, I get the following error:

15#15: *1 open() "/var/www/public404" failed (2: No such file or directory), client: 172.17.0.1, server: , request: "GET / HTTP/1.1", host: "localhost:8000"

I am very new to this, but it seems that nginx points to /var/www/public404 - I have no idea how that "404" got there. I have a feeling it has to do with the line try_files $uri = 404; in the site.conf file, however, I don't really know how that works and I don't want to break it... The weird thing is that this works with Ubuntu, but not on Windows (or maybe that's not weird at all?).

I use docker build . -t my-image to build the image and docker run -p 8000:80 --name="my-container" my-image to run a container using the image.

The EOL of all the config files is set to line feed. Does anybody have any idea how I might fix this?

Dockerfile

FROM nginx:mainline-alpine
LABEL maintainer="John Doe <john@doe>"

COPY start.sh /start.sh
COPY nginx.conf /etc/nginx/nginx.conf
COPY supervisord.conf /etc/supervisord.conf
COPY site.conf /etc/nginx/sites-available/default.conf

RUN apk add --update \
php7 \
php7-fpm \
php7-pdo \
php7-pdo_mysql \
php7-mcrypt \
php7-mbstring \
php7-xml \
php7-openssl \
php7-json \
php7-phar \
php7-zip \
php7-dom \
php7-session \
php7-tokenizer \
php7-zlib && \
php7 -r "copy('http://getcomposer.org/installer', 'composer-setup.php');" && \
php7 composer-setup.php --install-dir=/usr/bin --filename=composer && \
php7 -r "unlink('composer-setup.php');" && \
ln -s /etc/php7/php.ini /etc/php7/conf.d/php.ini

RUN apk add --update \
bash \
openssh-client \
supervisor

RUN mkdir -p /etc/nginx && \
mkdir -p /etc/nginx/sites-available && \
mkdir -p /etc/nginx/sites-enabled && \
mkdir -p /run/nginx && \
ln -s /etc/nginx/sites-available/default.conf /etc/nginx/sites-enabled/default.conf && \
mkdir -p /var/log/supervisor && \
rm -Rf /var/www/* && \
chmod 755 /start.sh

RUN sed -i -e "s/;cgi.fix_pathinfo=1/cgi.fix_pathinfo=0/g" \
-e "s/variables_order = \"GPCS\"/variables_order = \"EGPCS\"/g" \
/etc/php7/php.ini && \
sed -i -e "s/;daemonize\s*=\s*yes/daemonize = no/g" \
-e "s/;catch_workers_output\s*=\s*yes/catch_workers_output = yes/g" \
-e "s/user = nobody/user = nginx/g" \
-e "s/group = nobody/group = nginx/g" \
-e "s/;listen.mode = 0660/listen.mode = 0666/g" \
-e "s/;listen.owner = nobody/listen.owner = nginx/g" \
-e "s/;listen.group = nobody/listen.group = nginx/g" \
-e "s/listen = 127.0.0.1:9000/listen = \/var\/run\/php-fpm.sock/g" \
-e "s/^;clear_env = no$/clear_env = no/" \
/etc/php7/php-fpm.d/www.conf

EXPOSE 443 80
WORKDIR /var/www

CMD ["/start.sh"]

start.sh

#!/bin/bash

# ----------------------------------------------------------------------
# Create the .env file if it does not exist.
# ----------------------------------------------------------------------

if [[ ! -f "/var/www/.env" ]] && [[ -f "/var/www/.env.example" ]];
then
cp /var/www/.env.example /var/www/.env
fi

# ----------------------------------------------------------------------
# Run Composer
# ----------------------------------------------------------------------

if [[ ! -d "/var/www/vendor" ]];
then
cd /var/www
composer update
composer dump-autoload -o
fi

# ----------------------------------------------------------------------
# Start supervisord
# ----------------------------------------------------------------------

exec /usr/bin/supervisord -n -c /etc/supervisord.conf

site.conf

server {
listen 80;

root /var/www/public;
index index.php index.html;

location / {
try_files $uri $uri/ /index.php?$query_string;
}

location ~ /\. {
deny all;
}

location ~ \.php$ {
try_files $uri = 404;
fastcgi_split_path_info ^(.+\.php)(/.+)$;
fastcgi_pass unix:/var/run/php-fpm.sock;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}

nginx.conf

user nginx;
worker_processes 1;

error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;

events {
worker_connections 1024;
}

http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log off;
sendfile on;
#tcp_nopush on;
keepalive_timeout 65;
#gzip on;
include /etc/nginx/sites-enabled/*.conf;
}

supervisord.conf

[unix_http_server]
file=/dev/shm/supervisor.sock

[supervisord]
logfile=/tmp/supervisord.log
logfile_maxbytes=50MB
logfile_backups=10
loglevel=warn
pidfile=/tmp/supervisord.pid
nodaemon=false
minfds=1024
minprocs=200
user=root

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[supervisorctl]
serverurl=unix:///dev/shm/supervisor.sock

[program:php-fpm7]
command = /usr/sbin/php-fpm7 --nodaemonize --fpm-config /etc/php7/php-fpm.d/www.conf
autostart=true
autorestart=true
priority=5
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0

[program:nginx]
command=/usr/sbin/nginx -g "daemon off;"
autostart=true
autorestart=true
priority=10
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes=0

Answer 1

As mentioned in the comments above, I just forgot to add the -v parameter in the docker run command, like so:

docker run -p 8000:80 -v $PWD/src:/var/www --name="my-container" my-image

... with $PWD/src being the full path to the src directory.