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xqtc 2024-09-03 16:21:59 +02:00
commit 7efb929691
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# UwUsched
UwUsched is an active-active, high-availability clustering soloution.
## Basic Architecture
```
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/-----> | Compute Node 1 |
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+--------+ +-----------+ | +----------------+
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\-----> | Compute Node n |
+----------------+
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"type": "tarball",
"url": "https://github.com/NixOS/nixpkgs/archive/356624c12086a18f2ea2825fed34523d60ccc4e3.tar.gz"
}
},
"nixpkgs_2": {
"locked": {
"lastModified": 1725103162,
"narHash": "sha256-Ym04C5+qovuQDYL/rKWSR+WESseQBbNAe5DsXNx5trY=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "12228ff1752d7b7624a54e9c1af4b222b3c1073b",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"flake-parts": "flake-parts",
"nixpkgs": "nixpkgs",
"treefmt-nix": "treefmt-nix"
}
},
"treefmt-nix": {
"inputs": {
"nixpkgs": "nixpkgs_2"
},
"locked": {
"lastModified": 1725271838,
"narHash": "sha256-VcqxWT0O/gMaeWTTjf1r4MOyG49NaNxW4GHTO3xuThE=",
"owner": "numtide",
"repo": "treefmt-nix",
"rev": "9fb342d14b69aefdf46187f6bb80a4a0d97007cd",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "treefmt-nix",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

79
flake.nix Normal file
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# Nix flake for reproducible builds & development environments.
# TL;DR:
# either `curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix | sh -s -- install`
# or https://github.com/DeterminateSystems/nix-installer
# and then `nix build` or `nix develop`
{
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
flake-parts.url = "github:hercules-ci/flake-parts";
#systems.url = "github:nix-systems/default";
# Dev tools
treefmt-nix.url = "github:numtide/treefmt-nix";
};
outputs = inputs:
inputs.flake-parts.lib.mkFlake { inherit inputs; } {
systems = [ "x86_64-linux" ];
imports = [
inputs.treefmt-nix.flakeModule
];
perSystem = { config, self', pkgs, lib, system, ... }:
let
cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
nonRustDeps = [
pkgs.libiconv
pkgs.pkg-config
];
rust-toolchain = pkgs.symlinkJoin {
name = "rust-toolchain";
paths = [ pkgs.rustc pkgs.cargo pkgs.cargo-watch pkgs.rust-analyzer pkgs.rustPlatform.rustcSrc ];
};
in
{
# Rust package
packages.default = pkgs.rustPlatform.buildRustPackage {
inherit (cargoToml.package) name version;
nativeBuildInputs = nonRustDeps;
buildInputs = nonRustDeps;
src = ./.;
cargoLock.lockFile = ./Cargo.lock;
};
# Rust dev environment
devShells.default = pkgs.mkShell {
inputsFrom = [
config.treefmt.build.devShell
];
shellHook = ''
# For rust-analyzer 'hover' tooltips to work.
export RUST_SRC_PATH=${pkgs.rustPlatform.rustLibSrc}
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${pkgs.vulkan-loader}/lib/:${pkgs.wayland}/lib/:${pkgs.libxkbcommon}/lib/
echo $RUST_SRC_PATH
echo
echo "Run 'just <recipe>' to get started"
just
'';
buildInputs = nonRustDeps;
nativeBuildInputs = with pkgs; [
just
rust-toolchain
];
RUST_BACKTRACE = 1;
};
# Add your auto-formatters here.
# cf. https://numtide.github.io/treefmt/
treefmt.config = {
projectRootFile = "flake.nix";
programs = {
nixpkgs-fmt.enable = true;
rustfmt.enable = true;
};
};
};
};
}

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default:
@just --list
# Auto-format the source tree
fmt:
treefmt
# Run 'cargo run' on the project
run *ARGS:
cargo run {{ARGS}}
# Run 'cargo watch' to run the project (auto-recompiles)
watch *ARGS:
cargo watch -x "run -- {{ARGS}}"

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use lazy_static::lazy_static;
use serde::Deserialize;
use std::fs;
use std::process::exit;
#[derive(Debug, Deserialize)]
pub struct NodeConfig {
role: NodeRole,
}
#[derive(Debug, Deserialize)]
pub enum NodeRole {
HeadNode,
ChildNode,
}
#[derive(Debug, Deserialize)]
pub struct LogConfig {
pub level: String,
}
#[derive(Debug, Deserialize)]
pub struct Config {
pub node: NodeConfig,
pub log: LogConfig,
}
fn load_config() -> Config {
let filename = "config.toml";
let contents = match fs::read_to_string(filename) {
Ok(c) => c,
Err(_) => {
eprintln!("[-][ERROR] Could not read config file `{}`", filename);
exit(1);
}
};
let config: Config = match toml::from_str(&contents) {
Ok(conf) => conf,
Err(err) => {
eprintln!("Unable to load data from file `{}`", filename);
eprintln!("[-][ERROR] {}", err.message());
exit(1);
}
};
return config;
}
lazy_static! {
pub static ref CONFIG: Config = load_config();
}

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mod config;
use crate::config::CONFIG;
use clap::{Parser, Subcommand};
use log::{debug, info, log, warn};
#[derive(Parser)]
#[command(author, version, about)]
#[command(propagate_version = true)]
struct Cli {
#[command(subcommand)]
command: Option<Commands>,
}
#[derive(Subcommand)]
enum Commands {
/// Starts uwusched
Start { role: Option<String> },
}
fn get_type_of<T>(_: &T) -> &'static str {
std::any::type_name::<T>()
}
fn main() {
std::env::set_var("RUST_LOG", CONFIG.log.level.clone());
pretty_env_logger::init();
// debug!("{:?}", CONFIG.node);
let cli = Cli::parse();
match &cli.command {
Some(Commands::Start { role }) => {
debug!("{:#?}", role)
}
None => {}
}
}