I have deployed my app (PHP Buildpack) to production with cf push app-name. After that I worked on further features and bugfixes. Now I would to push my local changes to production. But when I do that all the images (e.g. profile image) which are being saved on the production server get lost with every push.
How do I take over only the changes in the code without losing any stored files on the production server?
It should be like a "git pull"
Your application container should be stateless. To persist data, you should use the offered services. The Swisscom Application Cloud offers an S3 compatible Dynamic Storage (e.g. for pictures or user avatars) or different database services (MongoDB, MariaDB and others). If you need to save user data, you should save it in one of these services instead of the local filesystem of the app's container. If you keep your app stateless, you can migrate and scale it more easily. You can find more information about how your app should be structured to run in a modern cloud environment here. To get more information about how to use your app with a service, please check this link.