1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
use anyhow::{anyhow, bail, Result};
use async_process::{Command, Stdio};
use async_trait::async_trait;
use futures::future::try_join_all;
use itertools::Itertools;
use log::debug;
use serde::Deserialize;
use std::{collections::HashMap, path::Path};
use url::Url;
use crate::{providers::envs, Hydration};
use super::Provider;
#[derive(Default)]
pub struct Vault {
urls: HashMap<Url, String>,
}
impl Vault {
pub fn new() -> Self {
Default::default()
}
}
#[derive(Deserialize)]
struct VaultGetKVData {
data: HashMap<String, String>,
}
#[derive(Deserialize)]
struct VaultExport {
data: VaultGetKVData,
}
#[async_trait]
impl Provider for Vault {
fn add(&mut self, value: String) -> Result<()> {
match Url::parse(&value) {
std::result::Result::Ok(url) if url.scheme() == "vault" => {
self.urls.insert(url, value);
Ok(())
}
_ => bail!("Not an vault scheme"),
}
}
async fn resolve(&self, _: &Path) -> Result<Hydration> {
let fetches = self
.urls
.iter()
.into_group_map_by(|(url, _)| {
let port = match url.port() {
Some(port) => format!(":{}", port),
None => "".to_string(),
};
format!("{}{}", url.host().expect("Missing host"), port)
})
.into_iter()
.flat_map(|(host, group)| {
group
.into_iter()
.into_group_map_by(|(url, _)| url.path().split('/').nth(1).expect("Missing project"))
.into_iter()
.flat_map(|(mount, group)| {
group
.into_iter()
.into_group_map_by(|(url, _)| {
(url.path().split('/').nth(2)).expect("Missing env")
})
.into_iter()
.map(|(key, group)| {
let host = host.clone();
async move {
let cmd = [
"vault",
"kv",
"get",
#[cfg(debug_assertions)]
&format!("-address=http://{}", host),
#[cfg(not(debug_assertions))]
&format!("-address=https://{}", host),
&format!("-mount={}", mount),
"-format=json",
&urlencoding::decode(key).expect("Invalid URL key decoding"),
];
debug!("Lade run: {}", cmd.join(" "));
let child = match Command::new(cmd[0])
.args(&cmd[1..])
.envs(envs())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.output()
.await {
Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
bail!("Vault CLI not found. Make sure the binary is in your PATH or install it from https://developer.hashicorp.com/vault/docs/commands.")
},
Err(e) => {
bail!("Vault error: {e}")
},
Ok(child) => child,
};
let loaded =
serde_json::from_slice::<VaultExport>(&child.stdout)
.map_err(|err| {
let stderr = String::from_utf8_lossy(&child.stderr);
anyhow!("Vault error: {err} (stderr: {stderr})")
})?
.data
.data;
let hydration = group
.into_iter()
.map(|(url, value)| {
let var = url.path()
.split('/')
.nth(3)
.expect("Missing variable");
(
value.clone(),
loaded
.get(
urlencoding::decode(var).expect("Invalid URL field decoding").as_ref(),
)
.unwrap_or_else(|| panic!(
"Variable not found in Vault: {}",
key
))
.clone(),
)
})
.collect::<Hydration>();
debug!("hydration: {:?}", hydration);
Ok(hydration)
}
})
.collect::<Vec<_>>()
})
.collect::<Vec<_>>()
})
.collect::<Vec<_>>();
Ok(try_join_all(fetches).await?.into_iter().flatten().collect())
}
}