# syntax=docker/dockerfile:1

ARG GO_VERSION="1.25"
ARG ALPINE_VERSION="3.22"

FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS builder

WORKDIR /src

# Copy go files
COPY go.mod go.sum ./

# Download dependencies
RUN go mod download

# Copy source code
COPY . .

# Build of binary
RUN CGO_ENABLED=0 GOOS=linux go build -o docker-language-server ./cmd/docker-language-server

# Runtime stage
FROM alpine:${ALPINE_VERSION}

WORKDIR /app

# Copy binary from builder
COPY --from=builder /src/docker-language-server /usr/local/bin/

# Set entrypoint to run LSP server
ENTRYPOINT ["docker-language-server"]
CMD ["start", "--stdio"]