Distributing smol Docker images for Go binaries

Building a fully static go binary:

$ GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -o build/linux-{{tool-name}} .

The Dockerfile

FROM scratch
MAINTAINER Danielle Tomlinson <dani@tomlinson.io>

# You'll need to update this to be wherever you keep your ca-certs.
ADD resources/ca-certificates.crt /etc/ssl/certs/

ADD build/linux-{{tool-name}} /{{tool-name}}
 
CMD ["/{{tool-name}}"]

This results in ~10mb images for your Golang binaries, rather than distributing a bunch of things you don't need.