1st commit

docker/Dockerfile

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+# syntax=docker/dockerfile:1
+
+# ---- Stage 1: compile libultrahdr (ultrahdr_app) --------------------------
+FROM alpine:3.21 AS uhdr-build
+
+RUN apk add --no-cache \
+        git cmake make g++ nasm pkgconf libjpeg-turbo-dev
+
+WORKDIR /build
+# Pin to a commit once you've confirmed it works for you — HEAD can move.
+RUN git clone --depth 1 https://github.com/google/libultrahdr.git
+
+RUN cmake -G "Unix Makefiles" -DUHDR_WRITE_XMP=ON \
+        -S libultrahdr -B libultrahdr/build \
+    && cmake --build libultrahdr/build -j"$(nproc)"
+
+# ---- Stage 2: runtime -------------------------------------------------------
+FROM python:3.11-alpine
+
+RUN apk add --no-cache exiftool libjpeg-turbo libstdc++
+
+COPY --from=uhdr-build /build/libultrahdr/build/ultrahdr_app /usr/local/bin/ultrahdr_app
+RUN chmod +x /usr/local/bin/ultrahdr_app
+
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY main.py .
+COPY app/ app/
+COPY templates/ templates/
+COPY static/ static/
+COPY LICENSE VERSION ./
+COPY docker/entrypoint.sh /app/entrypoint.sh
+RUN chmod +x /app/entrypoint.sh
+
+RUN adduser -D runner && mkdir -p /app/jobs && chown -R runner:runner /app
+USER runner
+
+EXPOSE 5000
+ENTRYPOINT ["/app/entrypoint.sh"]

docker/Dockerfile.dockerignore

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+jobs/*
+!jobs/.gitkeep
+__pycache__/
+*.pyc
+.git

docker/compose.yaml

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+name: instagram-hdr
+
+services:
+  hdr-web:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile
+    container_name: instagram-hdr-web
+    restart: unless-stopped
+    ports:
+      - "5050:5000"  # host:container — change 5050 if that's taken too
+    # Put a reverse proxy (Traefik/nginx/SWAG) in front of this if you
+    # want it reachable outside your LAN — the Flask app itself has no
+    # auth and no rate limiting, so keep it internal-only or add both
+    # before exposing it further than your own network.

docker/entrypoint.sh

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+#!/bin/sh
+set -e
+
+CYAN="\033[1;36m"
+NC="\033[0m"
+
+VERSION=$(cat /app/VERSION)
+
+echo -e "${CYAN}╭──────────────────────────────────────────────────╮${NC}"
+echo -e "${CYAN}│${NC}   Instagram ${CYAN}HDR${NC} Assembler — version ${VERSION}        ${CYAN}│${NC}"
+echo -e "${CYAN}├──────────────────────────────────────────────────┤${NC}"
+echo -e "${CYAN}│${NC} License: MIT (see LICENSE)                       ${CYAN}│${NC}"
+echo -e "${CYAN}│${NC} Gain-map pipeline adapted from:                  ${CYAN}│${NC}"
+echo -e "${CYAN}│${NC} kostis-kounadis/instagram-hdr-assembler          ${CYAN}│${NC}"
+echo -e "${CYAN}╰──────────────────────────────────────────────────╯${NC}"
+
+echo -e "[~] Checking required external tools..."
+missing=""
+for tool in ultrahdr_app exiftool; do
+  if ! command -v "$tool" >/dev/null 2>&1; then
+    missing="$missing $tool"
+  fi
+done
+if [ -n "$missing" ]; then
+  echo -e "[!] Missing required tools:$missing"
+  exit 1
+fi
+echo -e "[✓] Required tools found: ultrahdr_app, exiftool"
+
+echo -e "[~] Starting Instagram HDR Assembler web server..."
+exec gunicorn --bind 0.0.0.0:5000 --workers 1 --threads 4 --timeout 120 main:app