MacOS Dockerfile (#41)

Dockerfile

@@ -25,12 +25,14 @@ COPY cmd/ cmd/
 
 # Build
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o kantra main.go
+RUN CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -a -o darwin-kantra main.go
 
 FROM quay.io/konveyor/analyzer-lsp:latest
 
 RUN mkdir /opt/rulesets /opt/rulesets/input /opt/openrewrite /opt/input /opt/output /opt/xmlrules /opt/shimoutput
 
 COPY --from=builder /workspace/kantra /usr/local/bin/kantra
+COPY --from=builder /workspace/darwin-kantra /usr/local/bin/darwin-kantra
 COPY --from=shim /usr/bin/windup-shim /usr/local/bin
 COPY --from=rulesets /rulesets/default/generated /opt/rulesets
 COPY --from=rulesets /windup-rulesets/rules/rules-reviewed/openrewrite /opt/openrewrite