Docker unable to find file in Alpine Linux container

Question

I have an application I'm creating a docker image for, the image is created but when I run it the container errors saying it cannot find the executable file.

Here is my docker file:

FROM alpine:3.14
WORKDIR /
EXPOSE 3000
COPY ./weather-api /weather-api
CMD ["/weather-api"]

I've included a RUN ls -la immediately above the CMD which shows the file is there whilst building the image is being built, and I've included a shell script with la -la as the CMD which has shows that the files is there when the image is being ran.

This is the error I'm getting:

standard_init_linux.go:228: exec user process caused: no such file or directory

When I try to call the weather-api from a shell script I get the standard file not found error.

I've tried using an absolute and relative path for the command, copying the file to /usr/local/bin which I think should put it on the PATH so it would be callable from anywhere, changing COPY to ADD.

I'm still new to docker so any help would be greatly appreciated.