Remove dependency on Sed to build Docker images

- Keep the Dockerfile standard and avoid external dependencies
- Use build args instead of Sed
- Bump Alpine Linux to version 3.11
- Always use the latest version of Golang

1 files changed, 10 insertions, 5 deletions

diff --git a/Dockerfile b/Dockerfile
index da33ff1..16049d6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,19 @@
-FROM golang:1.13-alpine3.10 as build
-ENV GO111MODULE=on
+ARG BASE_IMAGE_ARCH="amd64"
+ARG ALPINE_LINUX_VERSION="3.11"
+
+FROM golang:1-alpine${ALPINE_LINUX_VERSION} as build
+ARG APP_VERSION
+ARG APP_ARCH="amd64"
 WORKDIR /go/src/app
 RUN apk add --no-cache --update build-base git
 COPY . .
-RUN make linux-__MINIFLUX_ARCH__ VERSION=__MINIFLUX_VERSION__
+RUN make linux-${APP_ARCH} VERSION=${APP_VERSION}
+RUN cp /go/src/app/miniflux-linux-${APP_ARCH} /go/src/app/miniflux
 
-FROM __BASEIMAGE_ARCH__/alpine:3.10.3
+FROM ${BASE_IMAGE_ARCH}/alpine:${ALPINE_LINUX_VERSION}
 EXPOSE 8080
 ENV LISTEN_ADDR 0.0.0.0:8080
 RUN apk --no-cache add ca-certificates tzdata
-COPY --from=build /go/src/app/miniflux-linux-__MINIFLUX_ARCH__ /usr/bin/miniflux
+COPY --from=build /go/src/app/miniflux /usr/bin/miniflux
 USER nobody
 CMD ["/usr/bin/miniflux"]