feat: initial commit

Dockerfile

@@ -0,0 +1,27 @@
+FROM golang:1.19.1 as build
+WORKDIR /build
+ENV CGO_ENABLED=0
+ADD . /build
+RUN if [ $(go mod tidy -v 2>&1 | grep -c unused) != 0 ]; then echo "Unused modules, please run 'go mod tidy'"; exit 1; fi
+RUN go fmt ./...
+RUN go vet ./...
+RUN CGO_ENABLED=1 go test -mod=readonly -race -coverprofile=coverage.txt.tmp -covermode=atomic -coverpkg=$(go list ./... | tr '\n' , | sed 's/,$//') ./...
+RUN ["/bin/bash", "-c", "cat coverage.txt.tmp | grep -v -f <(find . -type f | xargs grep -l 'Code generated') > coverage.txt"]
+RUN go tool cover -html=coverage.txt -o coverage.html
+RUN go tool cover -func=coverage.txt
+RUN rm coverage.txt.tmp
+
+RUN GOOS=linux GOARCH=amd64 go build \
+        -tags prod \
+        -a -installsuffix cgo \
+        -mod=readonly \
+        -o /release/handler \
+         -ldflags '-w -s' \
+         ./cmd/handler/handler.go
+
+FROM scratch as export
+COPY --from=build /build/coverage.txt /
+
+FROM scratch
+COPY --from=build /release/handler /
+CMD ["/handler"]