First version.
This commit is contained in:
R-VdP
parent
c36768018a
commit
6a849d71d0
7 changed files with 556 additions and 4 deletions
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.gitignore
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# will have compiled files and executables
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# will have compiled files and executables
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/target/
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/target/
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# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
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# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
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Cargo.lock
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# These are backup files generated by rustfmt
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# These are backup files generated by rustfmt
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**/*.rs.bk
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**/*.rs.bk
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result
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323
Cargo.lock
generated
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323
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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|
||||||
9
Cargo.toml
Normal file
9
Cargo.toml
Normal file
|
|
@ -0,0 +1,9 @@
|
||||||
|
[package]
|
||||||
|
name = "service-manager"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
clap = { version = "4.1.4", features = ["derive"] }
|
||||||
43
flake.lock
generated
Normal file
43
flake.lock
generated
Normal file
|
|
@ -0,0 +1,43 @@
|
||||||
|
{
|
||||||
|
"nodes": {
|
||||||
|
"flake-utils": {
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1667395993,
|
||||||
|
"narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
|
||||||
|
"owner": "numtide",
|
||||||
|
"repo": "flake-utils",
|
||||||
|
"rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "numtide",
|
||||||
|
"repo": "flake-utils",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"nixpkgs": {
|
||||||
|
"locked": {
|
||||||
|
"lastModified": 1675115703,
|
||||||
|
"narHash": "sha256-4zetAPSyY0D77x+Ww9QBe8RHn1akvIvHJ/kgg8kGDbk=",
|
||||||
|
"owner": "NixOS",
|
||||||
|
"repo": "nixpkgs",
|
||||||
|
"rev": "2caf4ef5005ecc68141ecb4aac271079f7371c44",
|
||||||
|
"type": "github"
|
||||||
|
},
|
||||||
|
"original": {
|
||||||
|
"owner": "NixOS",
|
||||||
|
"ref": "nixos-unstable",
|
||||||
|
"repo": "nixpkgs",
|
||||||
|
"type": "github"
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"root": {
|
||||||
|
"inputs": {
|
||||||
|
"flake-utils": "flake-utils",
|
||||||
|
"nixpkgs": "nixpkgs"
|
||||||
|
}
|
||||||
|
}
|
||||||
|
},
|
||||||
|
"root": "root",
|
||||||
|
"version": 7
|
||||||
|
}
|
||||||
33
flake.nix
Normal file
33
flake.nix
Normal file
|
|
@ -0,0 +1,33 @@
|
||||||
|
{
|
||||||
|
inputs = {
|
||||||
|
nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
|
||||||
|
|
||||||
|
flake-utils.url = "github:numtide/flake-utils";
|
||||||
|
};
|
||||||
|
|
||||||
|
outputs = { self, nixpkgs, flake-utils }: {
|
||||||
|
serviceConfig =
|
||||||
|
let
|
||||||
|
system = flake-utils.lib.system.x86_64-linux;
|
||||||
|
lib = nixpkgs.lib;
|
||||||
|
nixosConfig = nixpkgs.lib.nixosSystem {
|
||||||
|
inherit system;
|
||||||
|
specialArgs = { };
|
||||||
|
modules = [ ./modules ];
|
||||||
|
};
|
||||||
|
services = lib.flip lib.genAttrs
|
||||||
|
(serviceName:
|
||||||
|
nixosConfig.config.systemd.units."${serviceName}.service".unit)
|
||||||
|
# TODO: generate this list from the config instead of hard coding
|
||||||
|
[
|
||||||
|
"service-1"
|
||||||
|
"service-2"
|
||||||
|
];
|
||||||
|
in
|
||||||
|
nixpkgs.legacyPackages.${system}.writeTextFile {
|
||||||
|
name = "services";
|
||||||
|
destination = "/services.json";
|
||||||
|
text = lib.generators.toJSON { } services;
|
||||||
|
};
|
||||||
|
};
|
||||||
|
}
|
||||||
45
modules/default.nix
Normal file
45
modules/default.nix
Normal file
|
|
@ -0,0 +1,45 @@
|
||||||
|
{ pkgs, ... }: {
|
||||||
|
systemd.services =
|
||||||
|
let
|
||||||
|
service-1 = "service-1";
|
||||||
|
service-2 = "service-2";
|
||||||
|
in
|
||||||
|
{
|
||||||
|
${service-1} = {
|
||||||
|
enable = true;
|
||||||
|
description = service-1;
|
||||||
|
wants = [ "network-online.target" ];
|
||||||
|
after = [
|
||||||
|
"network-online.target"
|
||||||
|
"avahi-daemon.service"
|
||||||
|
"chrony.service"
|
||||||
|
"nss-lookup.target"
|
||||||
|
"tinc.service"
|
||||||
|
"pulseaudio.service"
|
||||||
|
];
|
||||||
|
serviceConfig = {
|
||||||
|
Type = "oneshot";
|
||||||
|
RemainAfterExit = true;
|
||||||
|
script = ''
|
||||||
|
true
|
||||||
|
'';
|
||||||
|
ExecReload = "true";
|
||||||
|
};
|
||||||
|
wantedBy = [ "multi-user.target" ];
|
||||||
|
};
|
||||||
|
|
||||||
|
${service-2} = {
|
||||||
|
enable = true;
|
||||||
|
description = service-2;
|
||||||
|
serviceConfig = {
|
||||||
|
Type = "simple";
|
||||||
|
};
|
||||||
|
partOf = [ "${service-1}.service" ];
|
||||||
|
wantedBy = [ "${service-1}.service" ];
|
||||||
|
|
||||||
|
script = ''
|
||||||
|
true
|
||||||
|
'';
|
||||||
|
};
|
||||||
|
};
|
||||||
|
}
|
||||||
101
src/main.rs
Normal file
101
src/main.rs
Normal file
|
|
@ -0,0 +1,101 @@
|
||||||
|
use clap::Parser;
|
||||||
|
use std::error::Error;
|
||||||
|
use std::{env, process, str};
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
struct StorePath {
|
||||||
|
path: String,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl From<String> for StorePath {
|
||||||
|
fn from(path: String) -> Self {
|
||||||
|
StorePath {
|
||||||
|
path: path.trim().into(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[derive(Parser, Debug)]
|
||||||
|
#[command(author, version, about, long_about=None)]
|
||||||
|
struct Args {
|
||||||
|
#[arg(short, long)]
|
||||||
|
flake_uri: String,
|
||||||
|
}
|
||||||
|
|
||||||
|
fn main() -> Result<(), Box<dyn Error>> {
|
||||||
|
let args = Args::parse();
|
||||||
|
|
||||||
|
let profile_name = "service-manager";
|
||||||
|
// TODO: we temporarily put this under per-user to avoid needing root access
|
||||||
|
// we will move this to /nix/var/nix/profiles/system later on.
|
||||||
|
let user = env::var("USER").expect("USER env var undefined");
|
||||||
|
let profile_path = format!("/nix/var/nix/profiles/per-user/{}/{}", user, profile_name);
|
||||||
|
|
||||||
|
let flake_attr = "serviceConfig";
|
||||||
|
|
||||||
|
let nix_build_output = run_nix_build(&args.flake_uri, flake_attr);
|
||||||
|
|
||||||
|
let store_path = get_store_path(nix_build_output)?;
|
||||||
|
println!("Found store path: {:?}", store_path);
|
||||||
|
print_out_and_err(install_nix_profile(&store_path, &profile_path));
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
fn install_nix_profile(store_path: &StorePath, profile_path: &str) -> process::Output {
|
||||||
|
process::Command::new("nix-env")
|
||||||
|
.arg("--profile")
|
||||||
|
.arg(profile_path)
|
||||||
|
.arg("--install")
|
||||||
|
.arg(&store_path.path)
|
||||||
|
.arg("--remove-all")
|
||||||
|
.output()
|
||||||
|
.expect("Failed to execute nix-env, is it on your path?")
|
||||||
|
}
|
||||||
|
|
||||||
|
fn get_store_path(nix_build_result: process::Output) -> Result<StorePath, Box<dyn Error>> {
|
||||||
|
if nix_build_result.status.success() {
|
||||||
|
return String::from_utf8(nix_build_result.stdout)
|
||||||
|
.map_err(Box::from)
|
||||||
|
.map(StorePath::from);
|
||||||
|
} else {
|
||||||
|
String::from_utf8(nix_build_result.stderr).map_or_else(boxed_error(), boxed_error())
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn run_nix_build(flake_uri: &str, flake_attr: &str) -> process::Output {
|
||||||
|
process::Command::new("nix")
|
||||||
|
.arg("build")
|
||||||
|
.arg(format!("{}#{}", flake_uri, flake_attr))
|
||||||
|
.arg("--print-out-paths")
|
||||||
|
.output()
|
||||||
|
.expect("Failed to execute nix, is it on your path?")
|
||||||
|
}
|
||||||
|
|
||||||
|
fn print_out_and_err(output: process::Output) -> process::Output {
|
||||||
|
print_u8(&output.stdout);
|
||||||
|
print_u8(&output.stderr);
|
||||||
|
output
|
||||||
|
}
|
||||||
|
|
||||||
|
fn print_u8(bytes: &[u8]) {
|
||||||
|
str::from_utf8(bytes).map_or((), |s| {
|
||||||
|
if !s.is_empty() {
|
||||||
|
println!("{}", s)
|
||||||
|
}
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn compose<A, B, C, G, F>(f: F, g: G) -> impl Fn(A) -> C
|
||||||
|
where
|
||||||
|
F: Fn(B) -> C,
|
||||||
|
G: Fn(A) -> B,
|
||||||
|
{
|
||||||
|
move |x| f(g(x))
|
||||||
|
}
|
||||||
|
|
||||||
|
fn boxed_error<V, E>() -> impl Fn(E) -> Result<V, Box<dyn Error>>
|
||||||
|
where
|
||||||
|
E: Into<Box<dyn Error>>,
|
||||||
|
{
|
||||||
|
compose(Err, Into::into)
|
||||||
|
}
|
||||||
Loading…
Add table
Add a link
Reference in a new issue