Merge pull request 'feat: inject version string into binary via Docker build argument' (#10) from v1.0.0 into main

Reviewed-on: http://git.jdbnet.co.uk/jamie/goencode/pulls/10

.gitea/workflows/release.yml

@@ -36,7 +36,7 @@ jobs:
 
       - name: Build and push Docker image
         run: |
-          docker build -t cr.jdbnet.co.uk/public/goencode:${{ steps.get_version.outputs.CLEAN_VERSION }} .
+          docker build --build-arg APP_VERSION=${{ steps.get_version.outputs.VERSION }} -t cr.jdbnet.co.uk/public/goencode:${{ steps.get_version.outputs.CLEAN_VERSION }} .
           docker push cr.jdbnet.co.uk/public/goencode:${{ steps.get_version.outputs.CLEAN_VERSION }}
           docker tag cr.jdbnet.co.uk/public/goencode:${{ steps.get_version.outputs.CLEAN_VERSION }} cr.jdbnet.co.uk/public/goencode:latest
           docker push cr.jdbnet.co.uk/public/goencode:latest

Dockerfile

@@ -6,11 +6,13 @@ WORKDIR /app
 # Copy source code
 COPY . .
 
+ARG APP_VERSION=dev
+
 # Run go mod tidy to generate go.sum based on source
 RUN go mod tidy
 
 # Build the application
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /app/bin/goencode ./cmd/goencode
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X main.Version=${APP_VERSION}" -o /app/bin/goencode ./cmd/goencode
 
 # Final stage
 FROM debian:bookworm-slim