I've encountered a Multi-stage Build example, where the first stage builds a ngnix server, and the second stage creates a ngnix service from that image.
The second stage looks like this:
... # second stage FROM scratch COPY --from=build /etc/passwd /etc/group /etc/ COPY --from=build /usr/local/nginx /usr/local/nginx COPY index.html /usr/local/nginx/html ...
This is a working example.
Now, notice the first COPY command. It received three parameters(!)
What is the meaning of 3 parameters in the COPY command? do you have a reference to documentation regarding this input?
Notice that the second COPY command uses 2 parameters, which I assumed are src and dest folders.