feat: docker build

Dockerfile

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+FROM git.nanobyte.cz/nanobyte-public/nano-rust:1.74.5f84654 AS builder
+ARG PACKAGE_NAME="ovlach_pdf"
+ARG GITEA_TOKEN
+
+
+COPY . /data/
+RUN cd /data && cargo-nan "${GITEA_TOKEN}" cargo build --release
+
+FROM git.nanobyte.cz/nanobyte-public/nano-rust:1.74.5f84654
+ARG PACKAGE_NAME="ovlach_pdf"
+ARG GITEA_TOKEN
+RUN apt-get update && apt-get install -y chromium
+COPY --from=builder /data/target/release/${PACKAGE_NAME} /bin
+RUN mkdir /rund
+COPY Rocket.toml /rund
+COPY templates/* /rund/templates/
+COPY resources /rund/resources/
+WORKDIR /rund
+EXPOSE 8000
+ENV ROCKET_ADDRESS=0.0.0.0
+ENV PACKAGE_NAME=${PACKAGE_NAME}
+ENTRYPOINT $PACKAGE_NAME