John O'Keefe
077afaca56
The test-runner stage copied only /app from the builder, but the Go module cache lives in /go/pkg/mod (GOMODCACHE) — the cache mounts used by the builder target /root/go/pkg/mod, which the go tool ignores, so those mounts never held anything. Every `compose run tests` / make test-integration invocation therefore re-downloaded all dependencies from the network, making integration runs slow and timeout-prone. The builder now materializes /go/pkg/mod into an image layer (go-module-cache) after the binary build, and the test-runner stage restores it to /go/pkg/mod before running tests. Test-only stage; the production final stage is unaffected.
108 lines
3.5 KiB
Docker
108 lines
3.5 KiB
Docker
# Build stage
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FROM golang:1.26-alpine AS builder
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WORKDIR /app
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# Install system tools (cached well)
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RUN apk add --no-cache nodejs npm curl git
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# Install Go tools (cached well)
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RUN wget -O /tmp/sqlc.tar.gz https://github.com/sqlc-dev/sqlc/releases/download/v1.31.0/sqlc_1.31.0_linux_amd64.tar.gz && \
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tar -xzf /tmp/sqlc.tar.gz -C /usr/local/bin sqlc && \
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rm /tmp/sqlc.tar.gz
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RUN --mount=type=cache,target=/root/go/pkg/mod \
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go install github.com/a-h/templ/cmd/templ@v0.3.1020
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# Copy package files and install npm dependencies (cached unless package.json changes)
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COPY package*.json ./
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# npm cache mount renamed from /root/.npm: the old volume held a stale
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# foliate-js tarball (name@version reuse) that --no-cache and builder prune
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# could not evict; a new mount id guarantees a clean fetch.
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RUN --mount=type=cache,target=/root/.npm-cache2 \
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npm install
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# Copy Go mod files (cached unless go.mod changes)
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COPY go.mod go.sum ./
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RUN --mount=type=cache,target=/root/go/pkg/mod \
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go mod download
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# Copy source code (this layer changes frequently)
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COPY . .
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# Generate code (only these rebuild on source changes)
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RUN cd internal/database && sqlc generate
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RUN cd templates && templ generate
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# Build frontend assets (only these rebuild on web/ changes)
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RUN npm run build:css:prod
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RUN npm run build:ts
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# Build Go binary (cached unless Go files or generated code changes)
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RUN --mount=type=cache,target=/root/go/pkg/mod \
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--mount=type=cache,target=/root/.cache/go-build \
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CGO_ENABLED=0 GOOS=linux go build -installsuffix cgo -o main ./cmd/server
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# Materialize the Go module cache into an image layer so the test-runner
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# stage can restore it. GOMODCACHE is /go/pkg/mod; cache mounts elsewhere are
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# ignored by the go tool, and without this copy `go test` in the tests
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# container re-downloads every dependency on each invocation.
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RUN cp -r /go/pkg/mod /app/go-module-cache
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# Test runner stage - includes Go runtime and test dependencies
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# This stage is ONLY used for running tests, never deployed to production
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FROM golang:1.26-alpine AS test-runner
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RUN apk --no-cache add ca-certificates curl poppler-utils
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WORKDIR /app
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# Copy everything from builder (includes compiled binary, source code, and dependencies)
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COPY --from=builder /app ./
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# Restore the materialized Go module cache so `go test` works offline.
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RUN mkdir -p /go/pkg/mod && cp -r /app/go-module-cache/. /go/pkg/mod/ && rm -rf /app/go-module-cache
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# Install kepubify for conversion tests
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RUN wget -O /usr/bin/kepubify https://github.com/pgaskin/kepubify/releases/latest/download/kepubify-linux-64bit \
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&& chmod +x /usr/bin/kepubify
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# Set test environment variables
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ENV TEST_MODE=true
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ENV RATE_LIMIT_ENABLED=false
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ENV REQUESTS_PER_MINUTE=1000
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# Default command for running tests
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CMD ["go", "test", "./cmd/server/tests", "-v", "-timeout", "5m", "-parallel=1", "-short"]
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# Final stage
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FROM alpine:latest
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RUN apk --no-cache add ca-certificates curl poppler-utils
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# Install kepubify for EPUB→KEPUB conversion
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RUN wget -O /usr/bin/kepubify https://github.com/pgaskin/kepubify/releases/latest/download/kepubify-linux-64bit \
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&& chmod +x /usr/bin/kepubify
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WORKDIR /root/
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# Copy the binary from builder stage
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COPY --from=builder /app/main .
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# Copy database schema (if needed for initialization)
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COPY --from=builder /app/database/schema ./database/schema
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# Copy generated templates
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COPY --from=builder /app/templates ./templates
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# Copy web assets (HTML, CSS, JS, etc.)
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COPY --from=builder /app/web ./web
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# Copy documentation
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COPY --from=builder /app/docs ./docs
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# Expose port
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EXPOSE 8765
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# Run the binary
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CMD ["./main"]
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