unarr/Dockerfile
Deivid Soto e68b127acc feat(release): bundle ffmpeg + ffprobe in tarballs and Docker image
Operators no longer have to install ffmpeg manually. Both the release
tarballs (5 platforms × 2 binaries) and the Docker image now ship a
working ffmpeg + ffprobe pair adjacent to the unarr binary;
ResolveFFmpeg / ResolveFFprobe pick them up via the "adjacent to
executable" branch with zero configuration.

Tarball bundle (scripts/download-ffmpeg-static.sh + .goreleaser.yml):
- ffbinaries.com (johnvansickle / Zeranoe-style static GPL builds) for
  linux-amd64, linux-arm64, darwin-amd64, windows-amd64
- evermeet.cx universal Mach-O for darwin-arm64 (ffbinaries lacks it)
- BtbN/FFmpeg-Builds for windows-arm64 (ffbinaries lacks it)
- Idempotent fetch with curl --retry 5 so transient github.com SSL
  errors don't fail the goreleaser before-hook
- New `before.hooks` runs the script automatically per release; archive
  files glob `dist-ffbinaries/{{ .Os }}-{{ .Arch }}/*` + strip_parent
- Migrated to non-deprecated `formats: [tar.gz]` / `formats: [zip]`
- Verified via `goreleaser release --snapshot --clean --skip=publish` —
  6 archives all carry ffmpeg + ffprobe (~60-130MB each)

Docker image (Dockerfile):
- Replaced the failing BtbN static glibc binaries with Alpine's native
  musl `apk add ffmpeg`. The static GPL builds need glibc + libmvec /
  libgcc_s; gcompat alone is not enough (vector-math symbols unresolved).
  Alpine ships ffmpeg 6.1.2 which is fine for the WebRTC transcoder.
- Image size 174MB, built + ffmpeg/ffprobe/unarr smoke OK.

Targets the v0.8 unarr release (per user direction — new feature, not
a patch). dist-ffbinaries/ added to .gitignore.
2026-05-06 11:26:01 +02:00

48 lines
1.4 KiB
Docker

# ---- Build stage ----
FROM golang:1.25-alpine AS builder
RUN apk add --no-cache git ca-certificates
WORKDIR /src
# Copy go.mod/go.sum first for layer caching
COPY go.mod go.sum ./
RUN go mod download
# Copy source
COPY . .
ARG VERSION=dev
RUN CGO_ENABLED=0 go build -ldflags="-s -w -X github.com/torrentclaw/unarr/internal/cmd.Version=${VERSION}" -trimpath -o /unarr ./cmd/unarr/
# ---- Runtime stage ----
FROM alpine:3.22
# Use Alpine's native musl ffmpeg + ffprobe instead of the johnvansickle /
# BtbN static glibc builds — those need a glibc shim on Alpine and the
# vector-math symbols the GPL builds reference are not satisfiable by
# gcompat. Alpine ships ffmpeg ~7.x which is fine for the WebRTC
# transcoding pipeline (libx264 + libfdk-aac alternatives included).
RUN apk upgrade --no-cache && \
apk add --no-cache ca-certificates tzdata ffmpeg
# Non-root user (UID 1000 matches typical host user for volume permissions)
RUN addgroup -g 1000 unarr && adduser -u 1000 -G unarr -D -h /home/unarr unarr
# Default directories
RUN mkdir -p /config /downloads /data && \
chown -R unarr:unarr /config /downloads /data
USER unarr
COPY --from=builder /unarr /usr/local/bin/unarr
# Environment: point config/data to container paths
ENV UNARR_CONFIG_DIR=/config
ENV UNARR_DOWNLOAD_DIR=/downloads
ENV XDG_DATA_HOME=/data
VOLUME ["/config", "/downloads", "/data"]
ENTRYPOINT ["unarr"]
CMD ["start"]