Cherrypick from rnzsgh#35

https://github.com/rnzsgh/eks-workshop-sample-api-service-go/pull/35/files

Dockerfile

@@ -1,6 +1,6 @@
 # This is a multi-stage build. First we are going to compile and then
 # create a small image for runtime.
-FROM golang:1.17 as builder
+FROM public.ecr.aws/bitnami/golang:1.16 as builder
 
 RUN mkdir -p /go/src/github.com/eks-workshop-sample-api-service-go
 WORKDIR /go/src/github.com/eks-workshop-sample-api-service-go