Add distroless Docker image variant

packaging/docker/alpine/Dockerfile

@@ -2,7 +2,6 @@ FROM golang:alpine AS build
 RUN apk add --no-cache --update git
 ADD . /go/src/app
 WORKDIR /go/src/app
-RUN go generate
 RUN go build \
     -o miniflux \
     -ldflags="-s -w -X 'miniflux.app/version.Version=`git describe --tags --abbrev=0`' -X 'miniflux.app/version.Commit=`git rev-parse --short HEAD`' -X 'miniflux.app/version.BuildDate=`date +%FT%T%z`'" \

packaging/docker/distroless/Dockerfile

@@ -0,0 +1,23 @@
+FROM golang:latest AS build
+ADD . /go/src/app
+WORKDIR /go/src/app
+RUN go build \
+    -o miniflux \
+    -ldflags="-s -w -X 'miniflux.app/version.Version=`git describe --tags --abbrev=0`' -X 'miniflux.app/version.Commit=`git rev-parse --short HEAD`' -X 'miniflux.app/version.BuildDate=`date +%FT%T%z`'" \
+    main.go
+
+FROM gcr.io/distroless/base
+
+LABEL org.opencontainers.image.title=Miniflux
+LABEL org.opencontainers.image.description="Miniflux is a minimalist and opinionated feed reader"
+LABEL org.opencontainers.image.vendor="Frédéric Guillot"
+LABEL org.opencontainers.image.licenses=Apache-2.0
+LABEL org.opencontainers.image.url=https://miniflux.app
+LABEL org.opencontainers.image.source=https://github.com/miniflux/v2
+LABEL org.opencontainers.image.documentation=https://miniflux.app/docs/
+
+EXPOSE 8080
+ENV LISTEN_ADDR 0.0.0.0:8080
+COPY --from=build /go/src/app/miniflux /usr/bin/miniflux
+USER nonroot:nonroot
+CMD ["/usr/bin/miniflux"]