FROM golang:1.15 as builder

ENV GOFLAGS="-mod=readonly"

RUN mkdir -p /workspace
WORKDIR /workspace

ARG GOPROXY

COPY go.mod go.sum ./
RUN go mod download

ARG COMMIT_SHA

# This ARG allows to disable some optional features and it might be useful if you build the image yourself.
# For example you can disable S3 and GCS support like this:
# --build-arg FEATURES=nos3,nogcs
ARG FEATURES

COPY . .

RUN set -xe && \
    export COMMIT_SHA=${COMMIT_SHA:-$(git describe --always --dirty)} && \
    go build $(if [ -n "${FEATURES}" ]; then echo "-tags ${FEATURES}"; fi) -ldflags "-s -w -X github.com/drakkan/sftpgo/version.commit=${COMMIT_SHA} -X github.com/drakkan/sftpgo/version.date=`date -u +%FT%TZ`" -v -o sftpgo

FROM debian:buster-slim

RUN apt-get update && apt-get install --no-install-recommends -y ca-certificates mime-support && apt-get clean

SHELL ["/bin/bash", "-c"]

RUN mkdir -p /etc/sftpgo /var/lib/sftpgo /usr/share/sftpgo

RUN groupadd --system -g 1000 sftpgo && \
    useradd --system --gid sftpgo --no-create-home \
    --home-dir /var/lib/sftpgo --shell /usr/sbin/nologin \
    --comment "SFTPGo user" --uid 1000 sftpgo

# Install some optional packages used by SFTPGo features
RUN apt-get update && apt-get install --no-install-recommends -y git rsync && apt-get clean

# Override some configuration details
ENV SFTPGO_CONFIG_DIR=/etc/sftpgo
ENV SFTPGO_LOG_FILE_PATH=""
ENV SFTPGO_HTTPD__TEMPLATES_PATH=/usr/share/sftpgo/templates
ENV SFTPGO_HTTPD__STATIC_FILES_PATH=/usr/share/sftpgo/static

# Sane defaults, but users should still be able to override this from env vars
ENV SFTPGO_DATA_PROVIDER__USERS_BASE_DIR=/var/lib/sftpgo/users
ENV SFTPGO_DATA_PROVIDER__CREDENTIALS_PATH=/var/lib/sftpgo/credentials
ENV SFTPGO_HTTPD__BACKUPS_PATH=/var/lib/sftpgo/backups
ENV SFTPGO_SFTPD__HOST_KEYS=/var/lib/sftpgo/host_keys/id_rsa,/var/lib/sftpgo/host_keys/id_ecdsa
ENV SFTPGO_HTTPD__BIND_ADDRESS=""

COPY --from=builder /workspace/sftpgo.json /etc/sftpgo/sftpgo.json
COPY --from=builder /workspace/templates /usr/share/sftpgo/templates
COPY --from=builder /workspace/static /usr/share/sftpgo/static
COPY --from=builder /workspace/sftpgo /usr/local/bin/

RUN sed -i "s|sftpgo.db|/var/lib/sftpgo/sftpgo.db|" /etc/sftpgo/sftpgo.json

RUN chown -R sftpgo:sftpgo /etc/sftpgo && chown sftpgo:sftpgo /var/lib/sftpgo && \
    chmod 640 /etc/sftpgo/sftpgo.json && \
    chmod 750 /etc/sftpgo /var/lib/sftpgo

USER sftpgo

VOLUME /var/lib/sftpgo

CMD sftpgo serve