'Changing the image in Docker Compose based on the host OS

I am creating a PHP app, and using Docker + Docker Compose to run it.

My problem is, I want users to be able to run my project on any OS with no hassle. However, the official mysql:latest image is not supported on ARM processors (such as the Raspberry Pi), and so has to be switched out to hypriot/rpi-mysql.

Is it possible to do this either within one Compose file or with separate files for each platform? Or will users have to manually swap in a YML file when they clone the project?

Solution 1:^[1]

You can split your project into several YAML files, putting OS-independent stuff into one and dependent - into others. Your files will look like:

docker-compose.yml       -- common stuff lives here
docker-compose-x64.yml   -- lots of OS-dependent services for x64
docker-compose-arm.yml   -- lots of OS-dependent services for arm

Then you just need to launch this in following manner:

# for x64
docker-compose -f docker-compose.yml -f docker-compose-x64.yml up ...
# for arm
docker-compose -f docker-compose.yml -f docker-compose-arm.yml up ...

Solution 2:^[2]

FYI: There's a better answer to this now. You can build an image that supports multiple CPUs: https://docs.docker.com/desktop/multi-arch/

Sources

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Source: Stack Overflow

Solution	Source
Solution 1	grapes
Solution 2	Mike Patnode

'Changing the image in Docker Compose based on the host OS

Solution 1:[1]

Solution 2:[2]

Sources

Related Questions

Solution 1:^[1]

Solution 2:^[2]