Is there any option for render.yaml, to specify multi-stage docker target?
Are you able to explain a little what you’re trying to achieve here and the use case as we may be able to offer some suggestions
I have a Dockerfile with multi stages. Lets say one stage for base install, other for production, and another for development.
When building an image, docker can stop at a specific stage target.
In docker-compose.yaml it can be specified using
build: context: . target: prod
This feature is also available at heroku.
build: docker: release: dockerfile: Dockerfile target: builder web: Dockerfile
A workaround is to create separate Dockerfiles. And always using the last stage.
Hi, Render supports multi-stage docker builds. So this should work out of the box, here’s more info on Docker with Render in case it’s helpful. Deploy Docker — How to Use Docker | Render
Thanks for your answer.
Indeed, render supports multi-stage builds.
What I’m looking for is the option
target which is used to specify a target build stage. Instead of building entire Dockerfile including every stage.
That’s not something we currently support but I’ve added it as a feature request Support Docker Multistage target in render.yaml | Feature Requests | Render - please make sure to upvote it for later inclusion in the product.