docker: add Dockerfile

Signed-off-by: Renato Westphal <renato@opensourcerouting.org>

Author: rwestphal

.dockerignore

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+target
+Dockerfile
+.dockerignore
+.git
+.gitignore

docker/Dockerfile

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+# Build image
+FROM ghcr.io/rust-lang/rust:nightly-bookworm as build
+
+RUN apt-get update && \
+    apt-get install -y build-essential \
+    cmake \
+    libpcre2-dev \
+    protobuf-compiler
+
+WORKDIR /usr/src/holo
+COPY .. .
+RUN cargo build --features zebra-8-4-compat --release
+
+# Final base
+FROM debian:bookworm-slim
+
+RUN apt-get update && \
+    apt-get install -y frr \
+    ifupdown \
+    iputils-ping \
+    less \
+    tcpdump \
+  && rm -rf /var/lib/apt/lists/*
+
+RUN mkdir -p /var/run/holo
+RUN chown frr:frr /var/run/holo
+
+# Define Bash aliases
+RUN echo "alias holo-cli-show='holo-cli -c \"show state xpath /ietf-routing:routing format json\"'" >> /root/.bashrc
+RUN echo "alias ipr='ip -4 ro ; ip -6 ro ; ip -M ro'" >> /root/.bashrc
+
+COPY --from=build /usr/src/holo/holo-daemon/holod.toml /etc/holod.toml
+COPY --from=build /usr/src/holo/target/release/holod /usr/local/sbin/
+COPY --from=build /usr/src/holo/target/release/holo-cli /usr/local/sbin/
+
+ENV RUST_BACKTRACE=1
+ENV RUST_LOG=holo=debug
+
+COPY docker/docker-start /usr/src/docker-start
+CMD ["/usr/src/docker-start"]

docker/README.md

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+# Docker
+
+# Build
+
+To build the Docker image, navigate to the parent directory and run the following command:
+```
+docker build -t holo -f docker/Dockerfile .
+```
+
+# Running
+
+To run the container in the background, use the following command:
+```
+docker run -itd --privileged --name holo holo
+```
+
+To access Holo's CLI, use the following command:
+```
+docker exec -it holo holo-cli

docker/docker-start

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+#!/bin/bash
+
+service frr start
+holod 2>> /tmp/holod.err