How to configure a SPA on loading?

Question

We are using Webpack, React, Node.JS but I think this question is more generic that the specific technologies. I can use Webpack to configure the SPA when building for deve

Answer 1

We are struggling with the same concepts right now. The best way I found to configure at run time is by using env variables (which can be set at build time but also overriden at runtime using docker native or any other orchestration tool such as ECS or GKE).

Another, dirtier way, we used before is performing the run-time adjustments via the CMD directive of the image. This is not really recommended since it makes your image mutable and can make it prone to errors. However - it does work, and if used wisely can achieve what you want. A simple example for this is replacing your current CMD which probably looks a bit like this CMD node app.js with something like this - bash -c "wget prod.conf && node app.js"