chat/Dockerfile
clawbot 2761ee156a
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feat: split Dockerfile into dedicated lint stage for faster CI (#32)
## Summary

Split the Dockerfile into a dedicated lint stage using the prebuilt `golangci/golangci-lint:v2.1.6` image, so lint failures are reported faster without needing to download/compile golangci-lint first.

## Changes

- **New lint stage** (`AS lint`): Uses the prebuilt `golangci/golangci-lint` image (pinned by sha256). Runs `make fmt-check` and `make lint`.
- **Build stage** (`AS builder`): Runs `make test` + compilation. No longer installs golangci-lint via `go install`.
- **`COPY --from=lint`**: Forces BuildKit to execute the lint stage before proceeding with the build.
- **Runtime stage**: Unchanged.

All base images remain pinned by sha256 hash.

closes #27

<!-- session: agent:sdlc-manager:subagent:76cebdf6-86f0-4383-93e3-ff3e10fbc7a6 -->

Co-authored-by: clawbot <clawbot@noreply.git.eeqj.de>
Reviewed-on: #32
Co-authored-by: clawbot <clawbot@noreply.example.org>
Co-committed-by: clawbot <clawbot@noreply.example.org>
2026-03-02 21:05:08 +01:00

44 lines
1.4 KiB
Docker

# Lint stage — fast feedback on formatting and lint issues
# golangci/golangci-lint:v2.1.6, 2026-03-02
FROM golangci/golangci-lint@sha256:568ee1c1c53493575fa9494e280e579ac9ca865787bafe4df3023ae59ecf299b AS lint
WORKDIR /src
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN make fmt-check
RUN make lint
# Build stage
# golang:1.24-alpine, 2026-02-26
FROM golang@sha256:8bee1901f1e530bfb4a7850aa7a479d17ae3a18beb6e09064ed54cfd245b7191 AS builder
WORKDIR /src
RUN apk add --no-cache git build-base make
# Force BuildKit to run the lint stage before proceeding
COPY --from=lint /src/go.sum /dev/null
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN make test
# Build static binaries (no cgo needed at runtime — modernc.org/sqlite is pure Go)
ARG VERSION=dev
RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w -X main.Version=${VERSION}" -o /chatd ./cmd/chatd/
RUN CGO_ENABLED=0 go build -trimpath -ldflags="-s -w" -o /chat-cli ./cmd/chat-cli/
# Runtime stage
# alpine:3.21, 2026-02-26
FROM alpine@sha256:c3f8e73fdb79deaebaa2037150150191b9dcbfba68b4a46d70103204c53f4709
RUN apk add --no-cache ca-certificates \
&& addgroup -S chat && adduser -S chat -G chat
COPY --from=builder /chatd /usr/local/bin/chatd
USER chat
EXPOSE 8080
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD wget -qO- http://localhost:8080/.well-known/healthcheck.json || exit 1
ENTRYPOINT ["chatd"]