feat: dockerize

.dockerignore

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+.env
+target/
+tests/
+Dockerfile
+README.md
+LICENSE

Dockerfile

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+FROM rust:1.90-slim-trixie as builder
+WORKDIR /app
+
+COPY Cargo.toml Cargo.lock ./
+COPY . .
+
+RUN apt-get update -y \
+    && apt-get install -y --no-install-recommends \
+    pkg-config libssl-dev ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN cargo build --release
+
+FROM python:3-slim AS runtime
+FROM python:3.12-slim-trixie
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+
+ENV TZ=UTC
+ENV RUST_LOG=info
+ENV PATH=/home/app/.local/bin:$PATH
+
+RUN useradd --create-home --shell /bin/bash app
+WORKDIR /home/app
+USER app
+
+RUN uv tool install instaloader \
+    && instaloader --version
+
+COPY --from=builder /app/target/release/tg-relay-rs /usr/local/bin/tg-relay-rs
+
+CMD ["/usr/local/bin/tg-relay-rs"]

docker-compose.yml

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+services:
+  bot:
+    build:
+      context: .
+      dockerfile: Dockerfile
+      args:
+        BINARY_NAME: tg-relay-rs
+    environment:
+      TELOXIDE_TOKEN: ${TELOXIDE_TOKEN}
+      RUST_LOG: ${RUST_LOG:-info}
+    restart: unless-stopped
+    # If you need persistent storage (e.g. caching):
+    volumes:
+      - ./data:/app/data