addl docker params/changes

.dockerignore

@@ -0,0 +1,16 @@
+*.log
+~*
+*.tmp
+*.txt
+dist
+*.test
+*.prof
+*.conf
+*.toml
+*.db
+links
+vendor
+rice*.go
+.git
+bin
+**/*.md

Dockerfile

@@ -1,21 +1,20 @@
 
 # build image
-FROM golang:latest as build
-RUN mkdir /build
+FROM golang:alpine as build
+RUN apk add --no-cache g++ make
 COPY . /build/
 WORKDIR /build
 RUN make
 
+# runtime image
 FROM alpine:latest
-
 RUN apk add --no-cache ca-certificates
-
 # set up nsswitch.conf for Go's "netgo" implementation
 # - https://github.com/docker-library/golang/blob/1eb096131592bcbc90aa3b97471811c798a93573/1.14/alpine3.12/Dockerfile#L9
 RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf
-
 COPY --from=build /build/links /usr/local/bin/links
 
+# runtime params
 VOLUME /data
 EXPOSE 80
 WORKDIR /