Add support for building and running a Docker image

.dockerignore

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+# Local build and dev artifacts
+target
+
+# Docker files
+Dockerfile*
+docker-compose*
+
+# Git folder
+.git
+
+# Dot files
+.gitignore
+
+# TOML files
+autarco.toml*
+
+# Documentation
+*.md

Dockerfile

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+# Using multistage build:
+#   https://docs.docker.com/develop/develop-images/multistage-build/
+#   https://whitfin.io/speeding-up-rust-docker-builds/
+
+##########################  BUILD IMAGE  ##########################
+# Rust build image to build Autarco Scraper's statically compiled binary
+FROM rust:1.45 as builder
+
+# Build the dependencies first
+RUN USER=root cargo new --bin autarco-scraper
+WORKDIR ./autarco-scraper
+COPY ./Cargo.* ./
+RUN cargo build --release
+RUN rm src/*.rs
+
+# Add the real project files from current folder
+ADD . ./
+
+# Build the actual binary from the copied local files
+RUN rm ./target/release/deps/autarco_scraper*
+RUN cargo build --release
+
+########################## RUNTIME IMAGE ##########################
+# Create new stage with a minimal image for the actual runtime image/container
+FROM debian:buster-slim
+
+# Install cURL, Firefox and the Gecko Driver
+RUN apt-get update && \
+      apt-get upgrade -y && \
+      apt-get install -y --no-install-recommends ca-certificates curl firefox-esr jq && \
+      rm -rf /var/lib/apt/lists/*
+RUN export VERSION=$(curl -sL https://api.github.com/repos/mozilla/geckodriver/releases/latest | jq -r .tag_name); \
+      curl -vsL https://api.github.com/repos/mozilla/geckodriver/releases/latest | jq -r .tag_name; \
+      curl -sL "https://github.com/mozilla/geckodriver/releases/download/$VERSION/geckodriver-$VERSION-linux64.tar.gz" | \
+      tar -xz -C /usr/local/bin && \
+      chmod +x /usr/local/bin/geckodriver
+
+# Copy the binary from the "builder" stage to the current stage
+RUN adduser --system --disabled-login --home /autarco-scraper --gecos "" --shell /bin/bash autarco-scraper
+COPY --from=builder /autarco-scraper/target/release/autarco-scraper /autarco-scraper
+
+# Standard port on which Rocket launches
+EXPOSE 8000
+
+# Set user to www-data
+USER autarco-scraper
+
+# Set container home directory
+WORKDIR /autarco-scraper
+
+# Run Autarco Scraper
+ENTRYPOINT [ "/autarco-scraper/autarco-scraper" ]

docker-compose.yml

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+version: '3'
+
+services:
+  server:
+    image: autarco-scraper:latest
+    build: .
+    restart: unless-stopped
+    ports:
+      - 8066:8000
+    volumes:
+      - ./autarco.toml:/autarco-scraper/autarco.toml
+    environment:
+      ROCKET_LOG: normal  # Available levels are: off, debug, normal, critical
+    shm_size: '2gb'