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Split Dockerfile: pre-built golangci-lint stage for faster CI #26

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sneak merged 4 commits from fix/issue-22-dockerfile-split into main 2026-03-02 21:11:18 +01:00
Conversation 2 Commits 4 Files Changed 3 +54 -39
3 changed files with 54 additions and 39 deletions
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12
.gitea/workflows/check.yml Normal file
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@ -0,0 +1,12 @@
name: check
on:
push:
pull_request:
jobs:
check:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
- run: docker build .

56
Dockerfile
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@ -1,41 +1,35 @@
## lint image # Lint stage — fast feedback
FROM golangci/golangci-lint:v1.50.1 # golangci/golangci-lint:v1.64.8 (2025-03-17)
FROM golangci/golangci-lint@sha256:2987913e27f4eca9c8a39129d2c7bc1e74fbcf77f181e01cea607be437aa5cb8 AS lint
RUN mkdir -p /build WORKDIR /src
WORKDIR /build COPY go.mod go.sum ./
COPY ./ ./
RUN golangci-lint run
## build image:
FROM golang:1.19.3-bullseye AS builder
RUN apt update && apt install -y make bzip2
RUN mkdir -p /build
WORKDIR /build
COPY go.mod .
COPY go.sum .
RUN go mod download RUN go mod download
COPY . .
RUN make fmt-check
RUN make lint
COPY ./ ./ # Build stage
#RUN make lint # golang:1.24-bookworm (Go 1.24)
RUN make httpd && mv ./httpd /httpd FROM golang@sha256:1a6d4452c65dea36aac2e2d606b01b4a029ec90cc1ae53890540ce6173ea77ac AS builder
RUN go mod vendor # Force BuildKit to run the lint stage
RUN tar -c . | bzip2 > /src.tbz2 COPY --from=lint /src/go.sum /dev/null
WORKDIR /build
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN make test
RUN make build && cp ./httpd /httpd
## output image: # Runtime stage
FROM debian:bullseye-slim AS final # debian:bookworm-slim (2025-03)
FROM debian@sha256:74d56e3931e0d5a1dd51f8c8a2466d21de84a271cd3b5a733b803aa91abf4421 AS final
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /httpd /app/httpd COPY --from=builder /httpd /app/httpd
COPY --from=builder /src.tbz2 /usr/local/src/src.tbz2
WORKDIR /app WORKDIR /app
ENV HOME /app ENV HOME=/app
ENV PORT=8080
ENV PORT 8080 ENV DBURL=none
ENV DBURL none
EXPOSE 8080 EXPOSE 8080

25
Makefile
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@ -11,22 +11,30 @@ default: clean debug
commit: fmt lint commit: fmt lint
git commit -a git commit -a
# get golangci-lint with: # get gofumpt with:
# go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.31.0 # go install mvdan.cc/gofumpt@latest
# get gofumports with:
# go get mvdan.cc/gofumpt/gofumports
fmt: fmt:
gofumpt -l -w . gofumpt -l -w .
golangci-lint run --fix golangci-lint run --fix
fmt-check:
@test -z "$$(gofmt -l .)" || { echo "gofmt found unformatted files:"; gofmt -l .; exit 1; }
lint: lint:
golangci-lint run golangci-lint run
sh -c 'test -z "$$(gofmt -l .)"'
test: test:
go test ./... go test ./...
check: lint test check: fmt-check lint test
build: ./$(FN)d
hooks:
@mkdir -p .git/hooks
@printf '#!/bin/sh\nmake fmt-check lint\n' > .git/hooks/pre-commit
@chmod +x .git/hooks/pre-commit
@echo "Pre-commit hook installed."
debug: ./$(FN)d debug: ./$(FN)d
DEBUG=1 GOTRACEBACK=all ./$(FN)d DEBUG=1 GOTRACEBACK=all ./$(FN)d
@ -48,5 +56,6 @@ docker:
go build -o ../../$(FN)d $(GOFLAGS) . go build -o ../../$(FN)d $(GOFLAGS) .
tools: tools:
go get -v github.com/golangci/golangci-lint/cmd/golangci-lint@v1.31.0 go install mvdan.cc/gofumpt@latest
go get -v mvdan.cc/gofumpt/gofumports
.PHONY: default commit fmt fmt-check lint test check build hooks debug debugger run clean docker tools