36 lines
803 B
Docker
36 lines
803 B
Docker
# Multi-service Dockerfile with build caching
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# Usage: docker build --build-arg SERVICE=gateway -t cloud-gateway .
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ARG SERVICE=gateway
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# Build stage
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FROM golang:1.24-alpine AS builder
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RUN apk add --no-cache git ca-certificates
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WORKDIR /src
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# Cache dependencies first (changes less often)
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COPY go.work go.work.sum* ./
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COPY pkg/go.mod pkg/go.sum* ./pkg/
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COPY services/${SERVICE}/go.mod services/${SERVICE}/go.sum* ./services/${SERVICE}/
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RUN go mod download
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# Copy source and build
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COPY pkg/ ./pkg/
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COPY services/${SERVICE}/ ./services/${SERVICE}/
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WORKDIR /src/services/${SERVICE}
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RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /app .
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# Runtime stage
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FROM alpine:3.20
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RUN apk add --no-cache ca-certificates tzdata
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COPY --from=builder /app /app
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USER nobody:nobody
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ENTRYPOINT ["/app"]
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