FROM golang:1.15-buster 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

# Set to "true" to install the optional git and rsync dependencies
ARG INSTALL_OPTIONAL_PACKAGES=false

RUN apt-get update && apt-get install --no-install-recommends -y ca-certificates mime-support && rm -rf /var/lib/apt/lists/*

RUN if [ "${INSTALL_OPTIONAL_PACKAGES}" = "true" ]; then apt-get update && apt-get install --no-install-recommends -y git rsync && rm -rf /var/lib/apt/lists/*; fi

RUN mkdir -p /etc/sftpgo /var/lib/sftpgo /usr/share/sftpgo /srv/sftpgo/data /srv/sftpgo/backups

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

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/

# Log to the stdout so the logs will be available using docker logs
ENV SFTPGO_LOG_FILE_PATH=""
# templates and static paths are inside the container
ENV SFTPGO_HTTPD__TEMPLATES_PATH=/usr/share/sftpgo/templates
ENV SFTPGO_HTTPD__STATIC_FILES_PATH=/usr/share/sftpgo/static

# Modify the default configuration file
RUN sed -i "s|\"users_base_dir\": \"\",|\"users_base_dir\": \"/srv/sftpgo/data\",|" /etc/sftpgo/sftpgo.json && \
    sed -i "s|\"backups\"|\"/srv/sftpgo/backups\"|" /etc/sftpgo/sftpgo.json && \
    sed -i "s|\"address\": \"127.0.0.1\",|\"address\": \"\",|" /etc/sftpgo/sftpgo.json

RUN chown -R sftpgo:sftpgo /etc/sftpgo /srv/sftpgo && chown sftpgo:sftpgo /var/lib/sftpgo && chmod 700 /srv/sftpgo/backups

WORKDIR /var/lib/sftpgo
USER 1000:1000

CMD ["sftpgo", "serve"]