switch to scratch image

Author: jpillora

.github/workflows/ci.yml

@@ -58,9 +58,9 @@ jobs:
         id: buildx
         uses: docker/setup-buildx-action@v1
       - name: Login to DockerHub
-        uses: docker/login-action@v1
+        uses: docker/login-action@v2
         with:
-          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          username: jpillora
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Docker meta
         id: docker_meta

Dockerfile

@@ -1,16 +1,16 @@
 # build stage
-FROM golang:1.19 as build
-LABEL maintainer="[email protected]"
-ENV CGO_ENABLED 0
+FROM golang:alpine AS build
+RUN apk update && apk add git
 ADD . /src
 WORKDIR /src
-RUN go mod download
+ENV CGO_ENABLED 0
 RUN go build \
     -ldflags "-X github.com/jpillora/chisel/share.BuildVersion=$(git describe --abbrev=0 --tags)" \
-    -o chisel
+    -o /tmp/bin
 # run stage
 FROM scratch
-COPY --from=alpine:latest /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+LABEL maintainer="[email protected]"
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 WORKDIR /app
-COPY --from=build /src/chisel /app/chisel
-ENTRYPOINT ["/app/chisel"]
+COPY --from=build /tmp/bin /app/bin
+ENTRYPOINT ["/app/bin"]