Page keeps loading when using gulp browser-sync in Docker environment - docker

Question

I have set up a Docker environment for my Drupal installation, I created a theme and I want it to work with gulp and browser-sync. When I run my gulp script with browser-sync that is shown below it opens a new browser tab but the page just keeps loading.
My Docker file:
version: "2"
services:
mariadb:
image: wodby/mariadb:$MARIADB_TAG
container_name: "${PROJECT_NAME}_mariadb"
stop_grace_period: 30s
environment:
MYSQL_ROOT_PASSWORD: $DB_ROOT_PASSWORD
MYSQL_DATABASE: $DB_NAME
MYSQL_USER: $DB_USER
MYSQL_PASSWORD: $DB_PASSWORD
php:
image: wodby/drupal-php:$PHP_TAG
container_name: "${PROJECT_NAME}_php"
environment:
PHP_SENDMAIL_PATH: /usr/sbin/sendmail -t -i -S mailhog:1025
DB_HOST: $DB_HOST
DB_USER: $DB_USER
DB_PASSWORD: $DB_PASSWORD
DB_NAME: $DB_NAME
DB_DRIVER: $DB_DRIVER
volumes:
- ./:/var/www/html
nginx:
image: wodby/nginx:$NGINX_TAG
container_name: "${PROJECT_NAME}_nginx"
depends_on:
- php
environment:
NGINX_STATIC_OPEN_FILE_CACHE: "off"
NGINX_ERROR_LOG_LEVEL: debug
NGINX_BACKEND_HOST: php
NGINX_SERVER_ROOT: /var/www/html/web
NGINX_VHOST_PRESET: $NGINX_VHOST_PRESET
volumes:
- ./:/var/www/html
labels:
- 'traefik.backend=nginx'
- 'traefik.port=80'
- 'traefik.frontend.rule=Host:${PROJECT_BASE_URL}'
pma:
image: phpmyadmin/phpmyadmin
container_name: "${PROJECT_NAME}_pma"
environment:
PMA_HOST: $DB_HOST
PMA_USER: $DB_USER
PMA_PASSWORD: $DB_PASSWORD
PHP_UPLOAD_MAX_FILESIZE: 1G
PHP_MAX_INPUT_VARS: 1G
labels:
- 'traefik.backend=pma'
- 'traefik.port=80'
- 'traefik.frontend.rule=Host:pma.${PROJECT_BASE_URL}'
portainer:
image: portainer/portainer
container_name: "${PROJECT_NAME}_portainer"
command: --no-auth -H unix:///var/run/docker.sock
volumes:
- /var/run/docker.sock:/var/run/docker.sock
labels:
- 'traefik.backend=portainer'
- 'traefik.port=9000'
- 'traefik.frontend.rule=Host:portainer.${PROJECT_BASE_URL}'
traefik:
image: traefik
container_name: "${PROJECT_NAME}_traefik"
command: -c /dev/null --web --docker --logLevel=INFO
ports:
- '8000:80'
volumes:
- /var/run/docker.sock:/var/run/docker.sock
My gulpfile:
(I'm not using that environmental variable, but it is to show what url I used there.)
var gulp = require('gulp');
var browserSync = require('browser-sync').create();
gulp.task('browser-sync', function() {
browserSync.init({
proxy: "${PROJECT_BASE_URL}"
});
});

Answer 1

I guess your frontend is running on the nginx-container or php-container.
Try to use:
...
proxy: "http://nginx"
...
or
...
proxy: "http://php"
...
I think you should at least be able to see your browser-sync at your configurated localhost with the right port.
Maybe it does help but I am not sure either.