Optimize RUN Commands Order in Dockerfile

[am-nimrah]

The order of the RUN commands in the second stage may impact caching efficiency. Consider rearranging the commands to optimize for caching, placing less frequently changing commands earlier in the Dockerfile.

[sheharyarn]

I'm assuming you're talking about the Dockerfile for Elixir/Phoenix apps, but your suggestions here are still vague.

Can you clarify what you mean with clear example on how the current command order is inefficient and how it can be improved with certain changes?

[am-nimrah]

Consolidate copying of package and source code by COPY . ./ in the dockerfile for a more efficient build in a structured way.

[sheharyarn]

Can you give an example from the Dockerfile?