Consensus node Dockerfile for test framework (#57)

## What ❔

Add Dockerfile to create a container with a consensus node running in
it.

## Why ❔

This introduces a Dockerfile for the test framework proposal, enabling
the execution of a node in isolation for potential use in future
consensus among N nodes in the network. Additionally, a compose file is
included for testing purposes, facilitating the simultaneous launch of
two nodes that can initiate consensus, each running in a separate
container. This file might be replaced in the future with a script that
initializes N nodes, allowing for easier management, potentially with
Kubernetes or a similar tool.

---------

Co-authored-by: Grzegorz Prusak <[email protected]>

.dockerignore

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+/node/target

Dockerfile

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+# Build Stage
+FROM rust:latest as build
+COPY /node/ /node/
+COPY Makefile .
+WORKDIR /node
+RUN apt-get update && apt-get install -y libclang-dev
+RUN cargo build --release
+RUN cd .. && make docker_node_configs
+
+# Runtime Stage
+FROM debian:stable-slim as runtime
+
+COPY --from=build /node/target/release/executor /node/
+COPY --from=build /node/tools/docker-config/nodes-config /node/
+COPY docker-entrypoint.sh /node/
+
+WORKDIR /node
+RUN chmod +x docker-entrypoint.sh
+
+ENTRYPOINT ["./docker-entrypoint.sh"]
+
+EXPOSE 3054

Makefile

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+.PHONY: node nodes_config docker_node_configs node_docker consensus_docker_example clean clean_docker
+IP?=127.0.0.1:3054
+DOCKER_IP=172.12.0.10
+EXECUTABLE_NODE_DIR=node/tools
+
+# Locally run commands
+
+node:
+	export RUST_LOG=INFO && cd ${EXECUTABLE_NODE_DIR}/nodes-config/${IP} && cargo run -- --database ../../database/${IP}
+
+nodes_config:
+	cd ${EXECUTABLE_NODE_DIR} && cargo run --bin localnet_config -- --input-addrs addresses.txt --output-dir nodes-config
+
+# Docker commands
+
+# This command will run inside the Dockerfile and it's not necessary to use it outside there.
+docker_node_configs:
+	cd ${EXECUTABLE_NODE_DIR} && cargo run --release --bin localnet_config -- --input-addrs docker-config/addresses.txt --output-dir docker-config/nodes-config
+
+node_docker:
+	mkdir -p ${EXECUTABLE_NODE_DIR}/docker-config
+	cd ${EXECUTABLE_NODE_DIR}/docker-config && rm -rf addresses.txt && echo ${DOCKER_IP}:3054 >> addresses.txt
+	docker-compose up -d node-1
+
+consensus_docker_example:
+	mkdir -p ${EXECUTABLE_NODE_DIR}/docker-config
+	cd ${EXECUTABLE_NODE_DIR}/docker-config && rm -rf addresses.txt && touch addresses.txt && echo 172.12.0.10:3054 >> addresses.txt &&  echo 172.12.0.11:3054 >> addresses.txt
+	docker-compose up -d
+
+stop_docker_nodes:
+	docker stop consensus-node-1 consensus-node-2
+
+# Clean commands
+
+clean: clean_docker
+	rm -rf ${EXECUTABLE_NODE_DIR}/nodes-config
+	rm -rf ${EXECUTABLE_NODE_DIR}/database
+
+clean_docker:
+	rm -rf ${EXECUTABLE_NODE_DIR}/docker-config
+	docker rm -f consensus-node-1
+	docker rm -f consensus-node-2
+	docker network rm -f node-net
+	docker image rm -f consensus-node

compose.yaml

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+version: "3.9"
+
+services:
+  node-1:
+    build: .
+    image: consensus-node
+    container_name: consensus-node-1
+    networks:
+      node_net:
+        # This allow us to know the ip of the node-1 container to fill the address in the config file
+        # Only for test purposes, may be removed in the future
+        ipv4_address: 172.12.0.10
+  node-2:
+    image: consensus-node
+    container_name: consensus-node-2
+    networks:
+      node_net:
+        # This allow us to know the ip of the node-2 container to fill the address in the config file
+        # Only for test purposes, may be removed in the future
+        ipv4_address: 172.12.0.11
+
+networks:
+  node_net:
+    name: node-net
+    ipam:
+      config:
+        - subnet: "172.12.0.0/24"
+          gateway: "172.12.0.1"

docker-entrypoint.sh

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+#!/bin/bash
+# This file works as an entrypoint of the docker container running the node binary copied inside of it.
+
+cd $(hostname -i):3054
+export RUST_LOG=INFO
+../executor

entrypoint.sh

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+#!/bin/bash
+
+cd $(hostname -i):3054
+export RUST_LOG=INFO
+../executor