This commit is contained in:
Vivian 2023-04-28 15:33:12 +02:00
commit 954038f565
6 changed files with 591 additions and 0 deletions

4
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/target
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result

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[package]
name = "vault-unseal"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
ureq = { version = "*", features = ["json"] }
serde_json = "*"
dotenv = "*"
serde = { version = "*", features = ["derive"] }

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{
"nodes": {
"flake-utils": {
"inputs": {
"systems": "systems"
},
"locked": {
"lastModified": 1681202837,
"narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
"owner": "numtide",
"repo": "flake-utils",
"rev": "cfacdce06f30d2b68473a46042957675eebb3401",
"type": "github"
},
"original": {
"owner": "numtide",
"repo": "flake-utils",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1682526928,
"narHash": "sha256-2cKh4O6t1rQ8Ok+v16URynmb0rV7oZPEbXkU0owNLQs=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "d6b863fd9b7bb962e6f9fdf292419a775e772891",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-unstable",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"flake-utils": "flake-utils",
"nixpkgs": "nixpkgs"
}
},
"systems": {
"locked": {
"lastModified": 1681028828,
"narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
"owner": "nix-systems",
"repo": "default",
"rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
"type": "github"
},
"original": {
"owner": "nix-systems",
"repo": "default",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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{
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
flake-utils.url = "github:numtide/flake-utils";
};
outputs = { self, nixpkgs, flake-utils }:
let inherit (flake-utils.lib) eachSystem system;
in eachSystem [ system.x86_64-linux ] (system:
let pkgs = nixpkgs.legacyPackages.${system};
in {
packages = {
default = pkgs.rustPlatform.buildRustPackage {
pname = "vault-unseal";
version = "0.1.0";
src = ./.;
cargoSha256 = "sha256-nCOHQU62fzJ9uwUK8n5JsVkKmqQwhG/5GI6rvtejZjY=";
};
};
});
}

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use dotenv::dotenv;
use serde::Deserialize;
use serde_json::json;
use std::error::Error;
use std::io::Read;
use std::thread;
use std::time::Duration;
use std::{env, fs::File};
#[derive(Debug, Deserialize)]
struct KeyFile {
keys: Vec<String>,
}
#[derive(Debug, Deserialize)]
struct HealthCheck {
sealed: bool,
}
fn main() -> Result<(), Box<dyn Error>> {
dotenv().ok();
let vault_addr = env::var("VAULT_ADDR")?;
let file = env::var("VAULT_KEY_FILE")?;
let interval = env::var("UNSEAL_INTERVAL").unwrap_or(String::from("15"));
let interval = Duration::from_secs(interval.parse()?);
let mut file = File::open(file)?;
let mut data = String::new();
file.read_to_string(&mut data)?;
let keyfile: KeyFile = serde_json::from_str(&data)?;
let unseal_url = format!("{vault_addr}/v1/sys/unseal");
let health_url = format!("{vault_addr}/v1/sys/health");
println!("Starting vault unsealer ...");
loop {
match ureq::get(&health_url).call() {
Err(ureq::Error::Status(code, resp)) if code == 503 => {
if let Ok(HealthCheck { sealed: true }) = resp.into_json() {
for key in &keyfile.keys {
match ureq::post(&unseal_url).send_json(json!({ "key": key })) {
Ok(resp) if resp.status() != 200 => eprintln!("error unsealing vault"),
Ok(_) => println!("unsealed vault partially"),
Err(err) => eprintln!("error unsealing vault: {err}"),
}
}
} else {
eprintln!("Can't unseal");
}
}
Err(ureq::Error::Status(_, _)) => (),
Err(e) => eprintln!("{e}"),
_ => (),
}
thread::sleep(interval);
}
}