Since Golang allows us to package our api into a single executable, we can begin to run this in a very small image layer that only has the executable. Thus we should have two image layers in the Dockerfile; a build layer and a final layer. The final layer will need the built executable and the goose binary to run migrations. The build layer we be the only layer built when running docker-compose. The final layer will be the layer that is packaged and tagged.
Description
Since Golang allows us to package our api into a single executable, we can begin to run this in a very small image layer that only has the executable. Thus we should have two image layers in the Dockerfile; a
buildlayer and afinallayer. The final layer will need the built executable and the goose binary to run migrations. The build layer we be the only layer built when running docker-compose. The final layer will be the layer that is packaged and tagged.