dockerfiles/github.Dockerfile
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# syntax=docker/dockerfile:1.7
FROM golang:1.26-trixie AS build
ARG TARGETOS
ARG TARGETARCH
ARG BUILD_VER=dev
WORKDIR /src
COPY go.mod go.sum ./
RUN --mount=type=cache,target=/go/pkg/mod \
go mod download
COPY internal ./internal
COPY cmd ./cmd
RUN --mount=type=cache,target=/go/pkg/mod \
--mount=type=cache,target=/root/.cache/go-build \
mkdir -p /out/bin && \
CGO_ENABLED=0 \
GOOS=${TARGETOS:-linux} \
GOARCH=${TARGETARCH:-amd64} \
go build \
-trimpath \
-ldflags="-s -w -X main.version=${BUILD_VER}" \
-o /out/bin/flatgit \
./cmd/flatgit
FROM debian:trixie-slim AS runtime
RUN apt-get update && \
apt-get install -y --no-install-recommends \
ca-certificates \
git \
tzdata && \
rm -rf /var/lib/apt/lists/*
RUN groupadd -r -g 10001 flatgit && \
useradd -r -u 10001 -g 10001 -d /var/lib/flatgit -s /usr/sbin/nologin flatgit && \
mkdir -p /var/lib/flatgit /tmp && \
chown -R 10001:10001 /var/lib/flatgit && \
chmod 1777 /tmp
COPY --from=build /out/bin/flatgit /usr/local/bin/flatgit
USER 10001:10001
VOLUME ["/var/lib/flatgit"]
EXPOSE 8080
ENTRYPOINT ["/usr/local/bin/flatgit"]