Impossible to mount an Nginx container with custom config - docker

Question

I'm trying to mount an Nginx container through a docker-compose.yml with configuration files shared with volumes.
Here are the docker-compose.yml
version: '3.7'
services:
db:
image: mariadb
restart: always
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: lamp
phpmyadmin:
image: phpmyadmin/phpmyadmin
depends_on:
- db
restart: always
ports:
- 8080:80
nginx:
image: nginx
depends_on:
- db
ports:
- 8000:80
volumes:
- ./docker/nginx/nginx.conf:/etc/nginx/nginx.conf
- ./docker/nginx/default.conf:/etc/nginx/conf.d/default.conf
# - ./log:/var/log/nginx
# - ./code:/usr/share/nginx/html
php:
image: phpdockerio/php73-fpm
depends_on:
- db
The 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;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log /var/log/nginx/access.log main;
sendfile on;
#tcp_nopush on;
keepalive_timeout 65;
#gzip on;
include /etc/nginx/conf.d/*.conf;
}
And the default.conf
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log /var/log/nginx/host.access.log main;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
The issue is, when I run docker-compose up, I get those errors
ERROR: for lamp-compose_nginx_1 Cannot start service nginx: OCI runtime create failed: container_linux.go:346: starting container process caused "process_linux.go:449: container init caused \"rootfs_linux.go:58: mounting \\\"/host_mnt/e/Projects/lamp-compose/docker/nginx/default.conf\\\" to rootfs \\\"/var/lib/docker/overlay2/15cb114888ab7570fd7da633798ef7f094049965e83d4f4ca5500f7d4a833706/merged\\\" at \\\"/var/lib/docker/overlay2/15cb114888ab7570fd7da633798ef7f09Creating lamp-compose_php_1 ... done
ied host path exists and is the expected type
ERROR: for nginx Cannot start service nginx: OCI runtime create failed: container_linux.go:346: starting container process caused "process_linux.go:449: container init caused \"rootfs_linux.go:58: mounting \\\"/host_mnt/e/Projects/lamp-compose/docker/nginx/default.conf\\\" to rootfs \\\"/var/lib/docker/overlay2/15cb114888ab7570fd7da633798ef7f094049965e83d4f4ca5500f7d4a833706/merged\\\" at \\\"/var/lib/docker/overlay2/15cb114888ab7570fd7da633798ef7f094049965e83d4f4ca5500f7d4a833706/merged/etc/nginx/conf.d\\\" caused \\\"not a directory\\\"\"": unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type
ERROR: Encountered errors while bringing up the project.
I already saw some answers to similar issue saying I should change - ./docker/nginx/nginx.conf:/etc/nginx/nginx.conf to - ./docker/nginx/nginx.conf:/etc/nginx/ which makes no sense to me (and also is not working).
Would anyone know what's wrong?

Answer 1

From the linked error, it seems that one of the paths ./docker/nginx/nginx.conf, ./docker/nginx/default.conf is a directory and not a file.
Instead of adding the configuration files as volumes, I recommend that you. use a custom docker image for Nginx with your configurations in it. You need to change the docker-compose file and provide a docker file for Nginx as shown below
Dockerfile
From nginx:latest
COPY ./docker/nginx/default.conf /etc/nginx/conf.d/default.conf
COPY ./docker/nginx/nginx.conf /etc/nginx/nginx.conf
compose
nginx:
build: .
depends_on:
- db
ports:
- 8000:80