Files
dkl/src/dls.rs
Mikaël Cluseau ac90b35142 add dls::Config
2025-12-12 16:58:40 +01:00

335 lines
9.9 KiB
Rust

use bytes::Bytes;
use futures_util::Stream;
use log::debug;
use reqwest::Method;
use std::collections::BTreeMap as Map;
use std::fmt::Display;
use std::net::IpAddr;
pub struct Client {
base_url: String,
token: String,
http_client: reqwest::Client,
}
impl Client {
pub fn new(base_url: String, token: String) -> Self {
Self {
base_url,
token,
http_client: reqwest::Client::default(),
}
}
pub fn with_proxy(self, proxy: String) -> reqwest::Result<Self> {
let proxy = reqwest::Proxy::all(proxy)?;
Ok(Self {
http_client: reqwest::Client::builder().proxy(proxy).build()?,
..self
})
}
pub async fn clusters(&self) -> Result<Vec<String>> {
self.get_json("clusters").await
}
pub fn cluster(&self, name: String) -> Cluster<'_> {
Cluster { dls: self, name }
}
pub async fn hosts(&self) -> Result<Vec<String>> {
self.get_json("hosts").await
}
pub fn host(&self, name: String) -> Host<'_> {
Host { dls: self, name }
}
pub async fn sign_dl_set(&self, req: &DownloadSetReq) -> Result<String> {
let req = (self.req(Method::POST, "sign-download-set")?).json(req);
self.req_json(req).await
}
pub async fn fetch_dl_set(
&self,
signed_dlset: &str,
kind: &str,
name: &str,
asset: &str,
) -> Result<impl Stream<Item = reqwest::Result<Bytes>>> {
let req = self.get(format!(
"public/download-set/{kind}/{name}/{asset}?set={signed_dlset}"
))?;
let resp = do_req(req, &self.token).await?;
Ok(resp.bytes_stream())
}
pub async fn get_json<T: serde::de::DeserializeOwned>(&self, path: impl Display) -> Result<T> {
self.req_json(self.get(&path)?).await
}
pub async fn get_bytes(&self, path: impl Display) -> Result<Vec<u8>> {
let resp = do_req(self.get(&path)?, &self.token).await?;
Ok(resp.bytes().await.map_err(Error::Read)?.to_vec())
}
pub fn get(&self, path: impl Display) -> Result<reqwest::RequestBuilder> {
self.req(Method::GET, path)
}
pub async fn req_json<T: serde::de::DeserializeOwned>(
&self,
req: reqwest::RequestBuilder,
) -> Result<T> {
let req = req.header("Accept", "application/json");
let resp = do_req(req, &self.token).await?;
let body = resp.bytes().await.map_err(Error::Read)?;
serde_json::from_slice(&body).map_err(Error::Parse)
}
pub fn req(&self, method: Method, path: impl Display) -> Result<reqwest::RequestBuilder> {
let uri = format!("{}/{path}", self.base_url);
Ok((self.http_client.request(method, uri))
.header("Authorization", format!("Bearer {}", self.token)))
}
}
pub struct Cluster<'t> {
dls: &'t Client,
name: String,
}
impl<'t> Cluster<'t> {
pub async fn config(&self) -> Result<ClusterConfig> {
self.dls.get_json(format!("clusters/{}", self.name)).await
}
pub async fn ca_cert(&self, ca_name: &str) -> Result<Vec<u8>> {
self.dls
.get_bytes(format!("clusters/{}/CAs/{ca_name}/certificate", self.name))
.await
}
pub async fn token(&self, name: &str) -> Result<String> {
self.dls
.get_json(format!("clusters/{}/tokens/{name}", self.name))
.await
}
pub async fn addons(&self) -> Result<Vec<u8>> {
self.dls
.get_bytes(format!("clusters/{}/addons", self.name))
.await
}
pub async fn ssh_userca_sign(&self, sign_req: &SshSignReq) -> Result<Vec<u8>> {
let req = self.dls.req(
Method::POST,
format!("clusters/{}/ssh/user-ca/sign", self.name),
)?;
let req = req.json(sign_req);
let resp = do_req(req, &self.dls.token).await?;
Ok(resp.bytes().await.map_err(Error::Read)?.to_vec())
}
pub async fn kube_sign(&self, sign_req: &KubeSignReq) -> Result<Vec<u8>> {
let req = (self.dls).req(Method::POST, format!("clusters/{}/kube/sign", self.name))?;
let req = req.json(sign_req);
let resp = do_req(req, &self.dls.token).await?;
Ok(resp.bytes().await.map_err(Error::Read)?.to_vec())
}
}
pub struct Host<'t> {
dls: &'t Client,
name: String,
}
impl<'t> Host<'t> {
pub async fn config(&self) -> Result<HostConfig> {
self.dls.get_json(format!("hosts/{}", self.name)).await
}
pub async fn asset(
&self,
asset_name: &str,
) -> Result<impl Stream<Item = reqwest::Result<Bytes>>> {
let req = self.dls.get(format!("hosts/{}/{asset_name}", self.name))?;
let resp = do_req(req, &self.dls.token).await?;
Ok(resp.bytes_stream())
}
}
#[derive(Default, serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct Config {
#[serde(default, deserialize_with = "deserialize_null_as_default")]
pub clusters: Vec<ClusterConfig>,
#[serde(default, deserialize_with = "deserialize_null_as_default")]
pub hosts: Vec<HostConfig>,
#[serde(default, deserialize_with = "deserialize_null_as_default")]
pub host_templates: Vec<HostConfig>,
#[serde(default, rename = "SSLConfig")]
pub ssl_config: String,
}
// compensate for go's encoder pitfalls
use serde::{Deserialize, Deserializer};
fn deserialize_null_as_default<'de, D, T>(deserializer: D) -> std::result::Result<T, D::Error>
where
T: Default + Deserialize<'de>,
D: Deserializer<'de>,
{
let opt = Option::deserialize(deserializer)?;
Ok(opt.unwrap_or_default())
}
#[derive(serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct ClusterConfig {
pub name: String,
pub bootstrap_pods: String,
pub addons: String,
}
#[derive(Default, serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct HostConfig {
pub name: String,
#[serde(default, skip_serializing_if = "Option::is_none")]
pub cluster_name: Option<String>,
#[serde(rename = "IPs")]
pub ips: Vec<IpAddr>,
#[serde(default, skip_serializing_if = "Map::is_empty")]
pub labels: Map<String, String>,
#[serde(default, skip_serializing_if = "Map::is_empty")]
pub annotations: Map<String, String>,
#[serde(rename = "IPXE", skip_serializing_if = "Option::is_none")]
pub ipxe: Option<String>,
pub initrd: String,
pub kernel: String,
pub versions: Map<String, String>,
/// initrd config template
pub bootstrap_config: String,
/// files to add to the final initrd config, with rendering
#[serde(default, skip_serializing_if = "Vec::is_empty")]
pub initrd_files: Vec<crate::File>,
/// system config template
pub config: String,
}
#[derive(serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct SshSignReq {
pub pub_key: String,
pub principal: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub validity: Option<String>,
#[serde(skip_serializing_if = "Vec::is_empty")]
pub options: Vec<String>,
}
#[derive(serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct KubeSignReq {
#[serde(rename = "CSR")]
pub csr: String,
pub user: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub group: Option<String>,
#[serde(skip_serializing_if = "Option::is_none")]
pub validity: Option<String>,
}
#[derive(serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct DownloadSetReq {
pub expiry: String,
#[serde(skip_serializing_if = "Vec::is_empty")]
pub items: Vec<DownloadSetItem>,
}
#[derive(Clone, serde::Deserialize, serde::Serialize)]
#[serde(rename_all = "PascalCase")]
pub struct DownloadSetItem {
pub kind: String,
pub name: String,
#[serde(skip_serializing_if = "Vec::is_empty")]
pub assets: Vec<String>,
}
#[derive(Debug, serde::Deserialize, serde::Serialize)]
struct ServerError {
#[serde(default)]
code: u16,
message: String,
#[serde(skip_serializing_if = "Option::is_none")]
details: Option<serde_json::Value>,
}
pub async fn do_req(req: reqwest::RequestBuilder, token: &str) -> Result<reqwest::Response> {
let (client, req) = req.build_split();
let req = req.map_err(Error::Build)?;
let method = req.method().clone();
let path = req.url().path().replace(token, "<token>"); // clone required anyway, so replace the token as we copy
debug!("request: {} {}", req.method(), req.url());
let resp = client.execute(req).await.map_err(Error::Send)?;
let status = resp.status();
if !status.is_success() {
let body = resp.bytes().await.map_err(Error::ErrorRead)?;
let srv_err: ServerError =
serde_json::from_slice(&body).map_err(|e| Error::ErrorParse {
error: e,
raw: body.to_vec(),
})?;
return Err(Error::ServerReject {
method,
path,
status,
message: srv_err.message,
details: srv_err.details,
});
}
Ok(resp)
}
pub type Result<T> = std::result::Result<T, Error>;
#[derive(thiserror::Error, Debug)]
pub enum Error {
#[error("request build failed: {0}")]
Build(reqwest::Error),
#[error("request send failed: {0}")]
Send(reqwest::Error),
#[error("response error read failed: {0}")]
ErrorRead(reqwest::Error),
#[error("response error parsing failed: {error}")]
ErrorParse {
error: serde_json::Error,
raw: Vec<u8>,
},
#[error("response read failed: {0}")]
Read(reqwest::Error),
#[error("rejected by server: {method} {path}: {} {message}", status.as_u16())]
ServerReject {
method: reqwest::Method,
path: String,
status: reqwest::StatusCode,
message: String,
details: Option<serde_json::Value>,
},
#[error("response parsing failed: {0}")]
Parse(serde_json::Error),
}