commit 1772a587f81b6164befaa81e5eee8c2001df3aee
Author: Vivian Roest <vivian@0x76.dev>
Date:   Fri Apr 28 15:33:12 2023 +0200

    v0.1.0

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a08c3d9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
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+result
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..07a4b26
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,434 @@
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..353c368
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,12 @@
+[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"] }
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<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);
+    }
+}