Dockerfile

# Sets linux/amd64 in case it's not injected by older Docker versions
ARG BUILDPLATFORM=linux/amd64

ARG ALPINE_VERSION=3.20
ARG GO_VERSION=1.23
ARG XCPUTRANSLATE_VERSION=v0.6.0
ARG GOLANGCI_LINT_VERSION=v1.61.0
ARG MOCKGEN_VERSION=v1.6.0

FROM --platform=${BUILDPLATFORM} qmcgaw/xcputranslate:${XCPUTRANSLATE_VERSION} AS xcputranslate
FROM --platform=${BUILDPLATFORM} qmcgaw/binpot:golangci-lint-${GOLANGCI_LINT_VERSION} AS golangci-lint
FROM --platform=${BUILDPLATFORM} qmcgaw/binpot:mockgen-${MOCKGEN_VERSION} AS mockgen

FROM --platform=${BUILDPLATFORM} golang:${GO_VERSION}-alpine${ALPINE_VERSION} AS base
ENV CGO_ENABLED=0
WORKDIR /tmp/gobuild
# Note: findutils needed to have xargs support `-d` flag for mocks stage.
RUN apk --update add git g++ findutils
COPY --from=xcputranslate /xcputranslate /usr/local/bin/xcputranslate
COPY --from=golangci-lint /bin /go/bin/golangci-lint
COPY --from=mockgen /bin /go/bin/mockgen
COPY go.mod go.sum ./
RUN go mod download
COPY cmd/ ./cmd/
COPY internal/ ./internal/

FROM base AS test
# Note on the go race detector:
# - we set CGO_ENABLED=1 to have it enabled
# - we installed g++ in the base stage to support the race detector
ENV CGO_ENABLED=1
ENTRYPOINT go test -race -coverpkg=./... -coverprofile=coverage.txt -covermode=atomic ./...

FROM base AS lint
COPY .golangci.yml ./
RUN golangci-lint run --timeout=10m

FROM --platform=${BUILDPLATFORM} base AS mocks
RUN git init && \
    git config user.email ci@localhost && \
    git config user.name ci && \
    git config core.fileMode false && \
    git add -A && \
    git commit -m "snapshot" && \
    grep -lr -E '^// Code generated by MockGen\. DO NOT EDIT\.$' . | xargs -r -d '\n' rm && \
    go generate -run "mockgen" ./... && \
    git diff --exit-code && \
    rm -rf .git/

FROM base AS build
ARG TARGETPLATFORM
ARG VERSION=unknown
ARG CREATED="an unknown date"
ARG COMMIT=unknown
RUN GOARCH="$(xcputranslate translate -targetplatform=${TARGETPLATFORM} -field arch)" \
    GOARM="$(xcputranslate translate -targetplatform=${TARGETPLATFORM} -field arm)" \
    go build -trimpath -ldflags="-s -w \
    -X 'main.version=$VERSION' \
    -X 'main.buildDate=$CREATED' \
    -X 'main.commit=$COMMIT' \
    " -o app cmd/app/main.go

FROM scratch
USER 1000
ENTRYPOINT ["/app"]
EXPOSE 8000/tcp
HEALTHCHECK --interval=10s --timeout=5s --start-period=5s --retries=2 CMD ["/app","healthcheck"]
ENV HTTP_SERVER_ADDRESS=:8000 \
    HTTP_SERVER_ROOT_URL=/ \
    HTTP_SERVER_LOG_REQUESTS=on \
    HTTP_SERVER_ALLOWED_ORIGINS= \
    HTTP_SERVER_ALLOWED_HEADERS= \
    METRICS_SERVER_ADDRESS=:9090 \
    LOG_LEVEL=info \
    STORE_TYPE=memory \
    STORE_JSON_FILEPATH=data.json \
    STORE_POSTGRES_ADDRESS=psql:5432 \
    STORE_POSTGRES_USER=postgres \
    STORE_POSTGRES_PASSWORD=postgres \
    STORE_POSTGRES_DATABASE=database \
    HEALTH_SERVER_ADDRESS=127.0.0.1:9999 \
    TZ=America/Montreal
COPY --chown=1000 postgres/schema.sql /schema.sql
ARG VERSION=unknown
ARG CREATED="an unknown date"
ARG COMMIT=unknown
LABEL \
    org.opencontainers.image.authors="quentin.mcgaw@gmail.com" \
    org.opencontainers.image.version=$VERSION \
    org.opencontainers.image.created=$CREATED \
    org.opencontainers.image.revision=$COMMIT \
    org.opencontainers.image.url="https://github.com/qdm12/go-template" \
    org.opencontainers.image.documentation="https://github.com/qdm12/go-template/blob/main/README.md" \
    org.opencontainers.image.source="https://github.com/qdm12/go-template" \
    org.opencontainers.image.title="go-template" \
    org.opencontainers.image.description="SHORT_DESCRIPTION"
COPY --from=build --chown=1000 /tmp/gobuild/app /app