mirror GoReleaser by passing version ldflag to github action docker build [#253] (#260)

Author: bdon

.github/workflows/publish.yml

@@ -47,4 +47,6 @@ jobs:
           provenance: false
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            VERSION=${{ github.ref_name }}
           outputs: type=image,name=target,annotation-index.org.opencontainers.image.description=See https://github.com/protomaps/go-pmtiles for more info.

Dockerfile

@@ -2,7 +2,13 @@ FROM golang:1.23-alpine3.19 AS builder
 COPY . /workspace
 WORKDIR /workspace
 ENV CGO_ENABLED=0
-RUN go build -o /workspace/go-pmtiles
+ARG VERSION
+RUN go build \
+  -trimpath \
+  -ldflags "\
+    -s -w \
+    -X main.version=${VERSION}" \
+  -o /workspace/go-pmtiles
 FROM gcr.io/distroless/static
 COPY --from=builder /workspace/go-pmtiles /go-pmtiles
 EXPOSE 8080