Dockerfile.multi-stage

# By default we pin to amd64 sha. Use make docker to automatically adjust for arm64 versions.
ARG BASE_DOCKER_SHA="14d68ca3d69fceaa6224250c83d81d935c053fb13594c811038c461194599973"
FROM golang:1.21-alpine3.18 as builder

WORKDIR $GOPATH/src/github.com/thanos-io/thanos
# Change in the docker context invalidates the cache so to leverage docker
# layer caching, moving update and installing apk packages above COPY cmd
# More info https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#leverage-build-cache
RUN apk update && apk add --no-cache alpine-sdk
# Replaced ADD with COPY as add is generally to download content form link or tar files
# while COPY supports the basic copying of local files into the container.
# https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#add-or-copy
COPY . $GOPATH/src/github.com/thanos-io/thanos

RUN git update-index --refresh; make build

# -----------------------------------------------------------------------------

FROM quay.io/prometheus/busybox@sha256:${BASE_DOCKER_SHA}
LABEL maintainer="The Thanos Authors"

COPY --from=builder /go/bin/thanos /bin/thanos

RUN adduser \
    -D `#Dont assign a password` \
    -H `#Dont create home directory` \
    -u 1001 `#User id`\
    thanos && \
    chown thanos /bin/thanos
USER 1001
ENTRYPOINT [ "/bin/thanos" ]