I am using DDEV as my local hosting environment, and many of my projects implement front end automation via Gulp. Browsersync is a major component to our front end set-up, and requires ports to be exposed by the DDEV container to the host machine. The problem at hand is two fold, what is the best way to expose a port to the host machine from the container, and what is the best set-up for a Browser-Sync Gulp task in a DDEV environment?
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I'm using the same automation with ddev, but the key feature of browsersync doesn't work for me, the auto reload if changing files. I'm working on Mac and if I'm saving a file, the gulp watchers don't "see" the changes and so there is no reload. Do you have a solution for this problem? – emjay May 04 '21 at 13:54
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@emjay were you able to work this out? If not my first suggestion would be to ensure you are using Polling in your watch tasks: `{ usePolling: true, interval: 1000 }` – TXChetG Aug 16 '21 at 13:17
5 Answers
Exposing the Necessary Ports
Part one of this situation requires using a Docker Compose file to expose your container's port to the hose machine. Based on this Answer you need to create a docker-compose.browsersync.yaml
file in your .ddev
directory.
An example of that file for Browser-Sync would be as follows:
# Override the web container's standard HTTP_EXPOSE and HTTPS_EXPOSE
# This is to expose the browsersync port.
version: '3.6'
services:
web:
# ports are a list of exposed *container* ports
expose:
- '3000'
environment:
- HTTP_EXPOSE=${DDEV_ROUTER_HTTP_PORT}:80,${DDEV_MAILHOG_PORT}:8025,3001:3000
- HTTPS_EXPOSE=${DDEV_ROUTER_HTTPS_PORT}:80,${DDEV_MAILHOG_HTTPS_PORT}:8025,3000:3000
We expose Port 3000 here because it is the default for Browser-Sync, but could be updated to reflect the needs of your projects.
Note: After adding this file to your .ddev
directory you should restart your ddev project.
For more information on defining new services with docker compose, read the DDEV docs.
Setting-Up Browser-Sync in Gulp
This assumes you have a working gulpfile.js
ready to do with your other required packages included already. If you're not fully familiar with Browser-Sync and Gulp, please refer to their docs for full details.
const browserSync = require('browser-sync').create();
/*
* Set 'url' (the host and proxy hostnames) to match the canonical url of your ddev project.
* Do not include the http/s protocol in the url. The ddev-router will route the
* host machine's request to the appropriate protocol.
*
* ex: yoursite.ddev.site
*/
const url = 'yoursite.ddev.site';
/*
* This function only includes the most basic browser-sync settings needed
* to get a watch server running. Please refer to the browser-sync docs for other
* available options.
*/
const startServer = function (done) {
// Initialize BrowserSync
browserSync.init({
proxy: url,
host: url,
port: 3000,
});
done();
};
exports.startServer = startServer;
You can test this using gulp startServer
after initial set-up. Gulp will output a http
as the External URL for testing. However thanks to the ddev-router it can be accessed via http
or https
.

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2I walked through this, made a couple of minor edits, and after doing it all got it working. The only problem is that I understand is that the `gulp startServer` outputs an http URL for an https site. This could be changed in the HTTP_EXPOSE and HTTPS_EXPOSE to flip the ports they expose, or you could just edit to add a warning about the URL that gulp outputs. – rfay Feb 08 '21 at 22:40
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1You're correct @rfay that was an oversight on my part. I missed it because of Firefox enforcing https everywhere. There is an option for browser-sync as well to use https. I've update the answer to reflect that option. – TXChetG Feb 09 '21 at 01:38
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Update: after further testing. The `https` option in the `browser-sync.init()` does not seem to play nicely with the ddev-router. However excluding it allows for the browser-sync server to launch correctly, and it can be accessed on the host machine via http or https. – TXChetG Feb 09 '21 at 15:13
Exposing Port 3000 for HTTP & HTTPS for BrowserSync
piggy-backing on the answer from @TXChetG and the answer from @Mario Hernandez
create a file called "docker-compose.browsersync.yaml" inside your hidden /.ddev/ config folder with code below, tabbed properly (which is very important), then run the command "ddev restart"
# Override the web container standard HTTP_EXPOSE and HTTPS_EXPOSE
# This is to expose the browsersync port.
version: '3.6'
services:
web:
# ports are a list of exposed *container* ports
expose:
- '3000'
environment:
- HTTP_EXPOSE=${DDEV_ROUTER_HTTP_PORT}:80
- HTTPS_EXPOSE=${DDEV_ROUTER_HTTPS_PORT}:80

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If you are a mac user and browsersync still doesn't work with the above solution, you might need to update your /etc/hosts file as I had to.
You can check more details in this answer.
I was unable to run browsersync from within the container. I updated my local system and ran browsersync locally
I used Stephen's solution elsewhere on this page (https://stackoverflow.com/a/70190271/18779 for quick reference).
I am running a Mac so I also did the following:
- Upgrade homebrew
- Use brew to install nvm
- Use nvm to install node 12 (I had to try a few versions to eliminate errors. 12 worked for me.
- Use npm to rebuild node-sass. I got sass errors before I did this.
- run browsersync. I am using Drupal and Radix subtheme so, for me, that was
cd [subtheme dir]
andnpm run watch

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The above tips and from other posts like:
Using Docker Compose to expose DDEV web container ports to host machine
Chrome can't open localhost:3000 with Gulp / BrowserSync
may be fine for a website on the HTTP protocol but not for one on HTTPS.
Specifically, I am testing a CMS installation in DDEV, with secure URLs in the Frontend/Backend. After running the ddev start
command, it is displayed that I access it in the browser using https://myproject.ddev.site
or https://127.0.0.1:62751
(the socket changes with each run of DDEV).
I didn't install drud/ddev-browsersync
package because it doesn't proxy to HTTPS, in my case it didn't help me at all.
In a directory I created the gulpfile.js file to perform complex tasks on scss, js, css, html files. In order not to manually reload the page in the browser, I obviously need BrowserSync. The only configuration that worked is the following:
const browserSync = require('browser-sync').create();
function startServer () {
browserSync.init({
proxy: 'https://127.0.0.1:62751',
});
};
exports.startServer = startServer;
When I run the gulp startServer
command, first https://localhost:3002
is displayed in the address bar, then after a while it redirects to https://myproject.ddev.site
. From this moment on, I make any changes to the files.
The only issue I have is that after each run of the ddev start
command I have to manually change the port in the line https://127.0.0.1:XXXXX
. If DDEV provides this value I could use it and then the issue is solved.

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