Add dockerfile

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

Author: alexellis

Dockerfile

@@ -0,0 +1,29 @@
+FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.23 as build
+
+ARG TARGETPLATFORM
+ARG BUILDPLATFORM
+ARG TARGETOS
+ARG TARGETARCH
+
+ARG VERSION
+ARG GIT_COMMIT
+ARG PUBLIC_KEY
+
+ENV CGO_ENABLED=0
+ENV GO111MODULE=on
+ENV GOFLAGS=-mod=vendor
+
+WORKDIR /go/src/github.com/self-actuated/slicer-ssh-agent
+COPY . .
+
+# RUN CGO_ENABLED=${CGO_ENABLED} GOOS=${TARGETOS} GOARCH=${TARGETARCH} go test -v ./...
+
+RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build \
+        --ldflags "-s -w -X 'main.Version=${VERSION}' -X 'main.GitCommit=${GIT_COMMIT}'" \
+        -o slicer-ssh-agent .
+
+FROM --platform=${TARGETPLATFORM:-linux/amd64} scratch as ship
+
+COPY --from=build /go/src/github.com/self-actuated/slicer-ssh-agent/slicer-ssh-agent    /
+
+CMD ["/slicer-ssh-agent"]