chore(docker): do not overide cache with COPY

[0xfourzerofour]

I was looking into the cargo chef build speeds in CI and found a few interesting things that have been implemented and recommended by the chef project.

this was first proposed in LukeMathWalker/cargo-chef#180 and eventually zcach found a workaround with rzync in the following PR ZcashFoundation/zebra#6934

[dancoombs]

What is the impact here?

[0xfourzerofour]

What is the impact here?

No impact in application, however this should in theory speed up deployments and docker builds in CI and locally. I will test it with a dummy staging deploy before this is merged

[dancoombs]

What is the impact here?

No impact in application, however this should in theory speed up deployments and docker builds in CI and locally. I will test it with a dummy staging deploy before this is merged

Yeah thats what I mean, what is the speedup to build times?

[0xfourzerofour]

What is the impact here?

No impact in application, however this should in theory speed up deployments and docker builds in CI and locally. I will test it with a dummy staging deploy before this is merged

Yeah thats what I mean, what is the speedup to build times?

Worst case before was around 2200s now its around 1500 without being cached. Note: this is worst case due to deployments from local machine that requires QEMU as we are using apple silicon. On CI it should be faster than that due to using an x86 image

[alex-miao]

Great find!

[dancoombs]

🚀