docker compose nginx not starting during build - ruby-on-rails

Question

I found it very strange, I had setup an rails app, posgres db, and a nginx server for production only but the ngix only able to start if I type
docker-compose -f docker-compose.yml -f production.yml up --build
but not the pre-build
docker-compose -f docker-compose.yml -f production.yml build
then
docker-compose up
the rails app and db is starting just fine is just that nginx is not started and the port is revert back to port 3000 instead of 80 which i found very strange isn't they doing the same thing?
nginx.conf
# This is a template. Referenced variables (e.g. $INSTALL_PATH) need
# to be rewritten with real values in order for this file to work.
upstream rails_app {
server unix:///webapp/tmp/sockets/puma.sock;
}
server {
listen 80;
# define your domain
server_name 127.0.0.1 localhost www.example.com;
# define the public application root
root /providre_api/public;
# define where Nginx should write its logs
access_log /providre_api/log/nginx.access.log;
error_log /providre_api/log/nginx.error.log;
# deny requests for files that should never be accessed
location ~ /\. {
deny all;
}
location ~* ^.+\.(rb|log)$ {\
deny all;
}
# serve static (compiled) assets directly if they exist (for rails production)
location ~ ^/(assets|images|javascripts|stylesheets|swfs|system)/ {
try_files $uri #rails;
access_log off;
gzip_static on; # to serve pre-gzipped version
expires max;
add_header Cache-Control public;
# Some browsers still send conditional-GET requests if there's a
# Last-Modified header or an ETag header even if they haven't
# reached the expiry date sent in the Expires header.
add_header Last-Modified "";
add_header ETag "";
break;
}
# send non-static file requests to the app server
location / {
try_files $uri #rails;
}
location #rails {
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
proxy_pass http://rails_app;
}
}
web.Dockerfile
# Base image:
FROM nginx
# Install dependencies
RUN apt-get update -qq && apt-get -y install apache2-utils
# establish where Nginx should look for files
ENV INSTALL_PATH /providre_api
# Set our working directory inside the image
WORKDIR $INSTALL_PATH
# create log directory
RUN mkdir log
# copy over static assets
COPY public public/
# Copy Nginx config template
COPY docker/web/nginx.conf /tmp/docker.nginx
# substitute variable references in the Nginx config template for real values from the environment
# put the final config in its place
RUN envsubst '$INSTALL_PATH' < /tmp/docker.nginx > /etc/nginx/conf.d/default.conf
EXPOSE 80
# Use the "exec" form of CMD so Nginx shuts down gracefully on SIGTERM (i.e. `docker stop`)
CMD [ "nginx", "-g", "daemon off;" ]
docker-compose.yml
version: '3'
services:
db:
image: postgres
volumes:
- ./tmp/db:/var/lib/postgresql/data
restart: always
ports:
- "5433:5432"
environment:
POSTGRES_USER: 'postgres'
POSTGRES_PASSWORD: ''
app:
command: bundle exec puma -C config/puma.rb
ports:
- "3000"
depends_on:
- db
docker-compose.override.yml
version: '3'
services:
app:
build:
context: .
dockerfile: ./docker/app/Dockerfile
volumes:
- .:/providre_api
ports:
- "3000:3000"
production.yml
version: '3'
services:
app:
build:
context: .
dockerfile: ./docker/app/prod.Dockerfile
volumes:
- .:/providre_api
ports:
- "3000"
nginx:
container_name: web
build:
context: .
dockerfile: ./docker/web/web.Dockerfile
depends_on:
- app
volumes:
- ./docker/web/nginx.conf:/etc/nginx/conf.d/default.conf
ports:
- 80:80

Answer 1

Sorry my bad I didn't test it fully so the docker-compose up will used the normal docker-compose.yml so I have to repeat and use docker-compose -f docker-compose.yml -f production.yml up instead