![]() Okay, so let's add a command to the Dockerfile to do it for us, each time that the containers are built! If you bring down the containers and spin them back up, the permissions are reset and you'll have to do it again. Just ssh into the container and chmod the application files with the correct permissions!Įxcept, it's not permanent. Well, the PHP container is running php on a user called The fix seems simple enough. Why is that a problem? Let's say that you're running a Docker instance on your local machine, and your app's files are owned by a user called andrew with an ID of 502. Whenever the volume gets mounted to the container, the file and directory ownership from the host system passes along to the container as well. That way, I'm also able to develop an app and make changes to those same files locally, having them reflect in the browser instantaneously. ![]() Docker Compose and mounted volumes bring my site's data and files into the container so that the application can be displayed in a browser. The setup that I linked at the top of the article uses the second method. This makes it great for development environments where source code is changing rapidly. The biggest pro with this method is that any changes made to those files is reflected on both sides of the volume. Volumes act as a sort of symlink between a local file or folder on your host machine, into a file or folder inside of the container. Changes made to any of your application's files though, can't be easily accessed by the local machine for development. The biggest pro with this is portability, since you don't have to distribute your application's source files, they're all included inside a Docker image. These take a file or folder contents and copy them to a specified directory in a container at build time. The first is by using ADD/COPY commands in Dockerfiles. ![]() In Docker, there's two main ways of bringing data into a container: That's half true, and the big difference lied in how I was bringing the app data into the containers. But, why? It shouldn't really make sense considering that Docker containers are closed, isolated systems. It turns out that the reason this was happening is because the PHP container didn't have the correct permissions to write to the filesystem that my Laravel app's files were under. Making this even more frustrating, visiting direct images or compiled assets would return just fine. I'd also come across a similar error when trying to use any artisan or composer commands in the browser through the Docker container(s). Opening up my browser and visiting the site though, would lead to something like this: After spinning up the container network with docker-compose up -d, everything in the terminal would return okay and I didn't see any errors pop up during the build. I'd start by getting my Docker Compose files together, and setting up my Laravel application in the right directory. Feel free to skip this if you'd like to head straight into the fix! I've tried multiple different fixes over the course of the repo's lifetime, but only recently have I found a solid solution that seems to work with a variety of common platforms and OS's, both locally and in production.īefore we get into the solution, I'm going to give a brief overview of the issues, and what the root cause is for them. Ever since I released it though, I've had multiple people sending me concerns and GitHub issues surrounding permissions problems. It's worked well enough for local development, which was what I originally intended it for. I've been maintaining and iterating on a basic Docker Compose setup for Laravel over the last year or so.
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