Updated Dockerfile to produce smaller image with minimum content and a few extra features; added .dockerignore

.dockerignore

@@ -0,0 +1 @@
+Dockerfile

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.11.2-alpine3.8
+FROM golang:1.11.2-alpine3.8 as build
 
 RUN apk add --update nodejs nodejs-npm make git
 RUN npm install -g less
@@ -11,5 +11,21 @@ RUN make install
 RUN make ui
 RUN make deps
 
+RUN mkdir /stage && \
+    cp -R /go/bin \
+       /go/src/app/templates \
+       /go/src/app/static \
+       /go/src/app/schema.sql \
+       /go/src/app/pages \
+       /go/src/app/keys \
+      /stage && ls -l /stage
+
+FROM golang:1.11.2-alpine3.8
+
+COPY --from=build --chown=daemon:daemon /stage /go
+
+VOLUME /go/keys
 EXPOSE 8080
+USER daemon
+
 CMD ["writefreely"]