add Dockerfile

Author: vistaarjuneja

Dockerfile

@@ -0,0 +1,42 @@
+# ---------------------------------------------------------#
+#                   Build Harness image                    #
+# ---------------------------------------------------------#
+FROM --platform=$BUILDPLATFORM golang:1.24.3-alpine AS builder
+
+# Setup workig dir
+WORKDIR /app
+
+# Get dependencies - will also be cached if we won't change mod/sum
+COPY go.mod .
+COPY go.sum .
+
+# COPY the source code as the last step
+COPY . .
+
+# set required build flags
+RUN --mount=type=cache,target=/root/.cache/go-build \
+    --mount=type=cache,target=/go/pkg \
+    CGO_ENABLED=0 \
+    GOOS=$TARGETOS GOARCH=$TARGETARCH \
+    go build -o ./cmd/harness-mcp-server/harness-mcp-server ./cmd/harness-mcp-server
+
+### Pull CA Certs
+FROM --platform=$BUILDPLATFORM alpine:latest AS cert-image
+
+RUN apk --update add ca-certificates
+
+# ---------------------------------------------------------#
+#                   Create final image                     #
+# ---------------------------------------------------------#
+FROM alpine:3.21 AS final
+
+# setup app dir and its content
+WORKDIR /app
+VOLUME /data
+
+ENV XDG_CACHE_HOME=/data
+
+COPY --from=builder /app/cmd/harness-mcp-server/harness-mcp-server /app/harness-mcp-server
+COPY --from=cert-image /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
+
+ENTRYPOINT [ "/app/harness-mcp-server", "stdio" ]