# =============================================================================
# đĻĢ FAST-TIME-SERVER - Multi-stage Containerfile
# =============================================================================
#
# Default runtime = DUAL transport â SSE (/sse, /messages)
# â HTTP (/http) on port 8080
#
# Build: docker build -t fast-time-server:latest --build-arg VERSION=$(git rev-parse --short HEAD) .
# Run : docker run --rm -p 8080:8080 fast-time-server:latest
# # now visit http://localhost:8080/sse or http://localhost:8080/http
# =============================================================================
# =============================================================================
# đī¸ STAGE 1 - BUILD STATIC BINARY (Go 1.23, CGO disabled)
# =============================================================================
FROM --platform=$TARGETPLATFORM golang:1.23 AS builder
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
ARG VERSION=dev
RUN CGO_ENABLED=0 GOOS=linux go build \
-trimpath \
-ldflags "-s -w -X 'main.appVersion=${VERSION}'" \
-o /usr/local/bin/fast-time-server .
# =============================================================================
# đĻ STAGE 2 - MINIMAL RUNTIME (scratch + tzdata + binary)
# =============================================================================
FROM scratch
LABEL org.opencontainers.image.source https://github.com/IBM/mcp-context-forge
# copy tzdata so time.LoadLocation works
COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
# copy binary
COPY --from=builder /usr/local/bin/fast-time-server /fast-time-server
# --- default: SSE + HTTP on 8080 ---
ENTRYPOINT ["/fast-time-server"]
CMD ["-transport=dual", "-port=8080", "-listen=0.0.0.0"]
