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version = "*", features = ["derive"] } diff --git a/flake.lock b/flake.lock new file mode 100644 index 0000000..d38d8c5 --- /dev/null +++ b/flake.lock @@ -0,0 +1,61 @@ +{ + "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 +} diff --git a/flake.nix b/flake.nix new file mode 100644 index 0000000..ff026c4 --- /dev/null +++ b/flake.nix @@ -0,0 +1,21 @@ +{ + 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="; + }; + }; + }); +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..683f7be --- /dev/null +++ b/src/main.rs @@ -0,0 +1,59 @@ +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, +} + +#[derive(Debug, Deserialize)] +struct HealthCheck { + sealed: bool, +} + +fn main() -> Result<(), Box> { + 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); + } +}