# Dragon Fork datarhei Core image (M2 + WebRTC egress).
#
# Builds the real root Core binary — the one that replaces the M1 PoC
# in production. FFmpeg is baked in so restream processes can run the
# RTP output legs emitted by the WebRTC subsystem.
#
# Two-stage:
#   1. builder: compile a static Go binary (CGO off — no dynamic libs)
#   2. runtime: alpine with ffmpeg for the subprocess path
#
# Usage via compose:
#   docker compose -f deploy/truenas/core/docker-compose.yml up -d --build
#
# The compose file drives configuration via CORE_* env vars — see
# README.md in this directory.

# ---- builder ----
# go.mod requires go 1.24; pinning the image keeps Docker's toolchain
# download off the hot path and makes the build reproducible.
FROM golang:1.24-alpine3.20 AS builder

WORKDIR /src
RUN apk add --no-cache git make

COPY . .

ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
RUN make release && make import && make ffmigrate

# ---- runtime ----
# Alpine with ffmpeg (Core shells out to it for every restream process).
# Scratch isn't an option here because the process manager needs ffmpeg
# on PATH.
FROM alpine:3.20 AS runtime

RUN apk add --no-cache ffmpeg tini ca-certificates

# make release's `-o core` lands the binary inside the core/ Go
# package directory (Go cannot overwrite a directory with a file, so
# it places the output file _inside_ it). The `import` and `ffmigrate`
# Makefile targets cd into app/<name> and write the binary back up to
# the repo root with a relative path, so those end up at /src/import
# and /src/ffmigrate.
COPY --from=builder /src/core/core /core/bin/core
COPY --from=builder /src/import    /core/bin/import
COPY --from=builder /src/ffmigrate /core/bin/ffmigrate
COPY --from=builder /src/mime.types /core/mime.types
COPY --from=builder /src/run.sh    /core/bin/run.sh

RUN mkdir -p /core/config /core/data

ENV CORE_CONFIGFILE=/core/config/config.json
ENV CORE_STORAGE_DISK_DIR=/core/data
ENV CORE_DB_DIR=/core/config

VOLUME ["/core/data", "/core/config"]
EXPOSE 8080/tcp

ENTRYPOINT ["/sbin/tini", "--", "/core/bin/run.sh"]
WORKDIR /core