Dockerfile.master

# Build stage
FROM golang:1.21-alpine AS builder

WORKDIR /build

# Install build dependencies
RUN apk add --no-cache git

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

# Copy source code
COPY . .

# Build the binary
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o master ./cmd/master

# Runtime stage
FROM alpine:latest

RUN apk --no-cache add ca-certificates

WORKDIR /app

# Install grpc-health-probe for K8s health checks
RUN wget -qO /bin/grpc_health_probe https://github.com/grpc-ecosystem/grpc-health-probe/releases/download/v0.4.24/grpc_health_probe-linux-amd64 && \
    chmod +x /bin/grpc_health_probe

# Copy binary from builder
COPY --from=builder /build/master .

# Expose gRPC port
EXPOSE 50051

# Run the master server
CMD ["./master"]