garage/src/api/admin/cluster.rs
Alex 382e74c798 First version of admin API (#298)
**Spec:**

- [x] Start writing
- [x] Specify all layout endpoints
- [x] Specify all endpoints for operations on keys
- [x] Specify all endpoints for operations on key/bucket permissions
- [x] Specify all endpoints for operations on buckets
- [x] Specify all endpoints for operations on bucket aliases

View rendered spec at <https://git.deuxfleurs.fr/Deuxfleurs/garage/src/branch/admin-api/doc/drafts/admin-api.md>

**Code:**

- [x] Refactor code for admin api to use common api code that was created for K2V

**General endpoints:**

- [x] Metrics
- [x] GetClusterStatus
- [x] ConnectClusterNodes
- [x] GetClusterLayout
- [x] UpdateClusterLayout
- [x] ApplyClusterLayout
- [x] RevertClusterLayout

**Key-related endpoints:**

- [x] ListKeys
- [x] CreateKey
- [x] ImportKey
- [x] GetKeyInfo
- [x] UpdateKey
- [x] DeleteKey

**Bucket-related endpoints:**

- [x] ListBuckets
- [x] CreateBucket
- [x] GetBucketInfo
- [x] DeleteBucket
- [x] PutBucketWebsite
- [x] DeleteBucketWebsite

**Operations on key/bucket permissions:**

- [x] BucketAllowKey
- [x] BucketDenyKey

**Operations on bucket aliases:**

- [x] GlobalAliasBucket
- [x] GlobalUnaliasBucket
- [x] LocalAliasBucket
- [x] LocalUnaliasBucket

**And also:**

- [x] Separate error type for the admin API (this PR includes a quite big refactoring of error handling)
- [x] Add management of website access
- [ ] Check that nothing is missing wrt what can be done using the CLI
- [ ] Improve formatting of the spec
- [x] Make sure everyone is cool with the API design

Fix #231
Fix #295

Co-authored-by: Alex Auvolat <alex@adnab.me>
Reviewed-on: Deuxfleurs/garage#298
Co-authored-by: Alex <alex@adnab.me>
Co-committed-by: Alex <alex@adnab.me>
2022-05-24 12:16:39 +02:00

198 lines
5 KiB
Rust

use std::collections::HashMap;
use std::net::SocketAddr;
use std::sync::Arc;
use hyper::{Body, Request, Response, StatusCode};
use serde::{Deserialize, Serialize};
use garage_util::crdt::*;
use garage_util::data::*;
use garage_util::error::Error as GarageError;
use garage_rpc::layout::*;
use garage_model::garage::Garage;
use crate::admin::error::*;
use crate::helpers::parse_json_body;
pub async fn handle_get_cluster_status(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
let res = GetClusterStatusResponse {
node: hex::encode(garage.system.id),
garage_version: garage.system.garage_version(),
known_nodes: garage
.system
.get_known_nodes()
.into_iter()
.map(|i| {
(
hex::encode(i.id),
KnownNodeResp {
addr: i.addr,
is_up: i.is_up,
last_seen_secs_ago: i.last_seen_secs_ago,
hostname: i.status.hostname,
},
)
})
.collect(),
layout: get_cluster_layout(garage),
};
let resp_json = serde_json::to_string_pretty(&res).map_err(GarageError::from)?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::from(resp_json))?)
}
pub async fn handle_connect_cluster_nodes(
garage: &Arc<Garage>,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let req = parse_json_body::<Vec<String>>(req).await?;
let res = futures::future::join_all(req.iter().map(|node| garage.system.connect(node)))
.await
.into_iter()
.map(|r| match r {
Ok(()) => ConnectClusterNodesResponse {
success: true,
error: None,
},
Err(e) => ConnectClusterNodesResponse {
success: false,
error: Some(format!("{}", e)),
},
})
.collect::<Vec<_>>();
let resp_json = serde_json::to_string_pretty(&res).map_err(GarageError::from)?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::from(resp_json))?)
}
pub async fn handle_get_cluster_layout(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
let res = get_cluster_layout(garage);
let resp_json = serde_json::to_string_pretty(&res).map_err(GarageError::from)?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::from(resp_json))?)
}
fn get_cluster_layout(garage: &Arc<Garage>) -> GetClusterLayoutResponse {
let layout = garage.system.get_cluster_layout();
GetClusterLayoutResponse {
version: layout.version,
roles: layout
.roles
.items()
.iter()
.filter(|(_, _, v)| v.0.is_some())
.map(|(k, _, v)| (hex::encode(k), v.0.clone()))
.collect(),
staged_role_changes: layout
.staging
.items()
.iter()
.filter(|(k, _, v)| layout.roles.get(k) != Some(v))
.map(|(k, _, v)| (hex::encode(k), v.0.clone()))
.collect(),
}
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct GetClusterStatusResponse {
node: String,
garage_version: &'static str,
known_nodes: HashMap<String, KnownNodeResp>,
layout: GetClusterLayoutResponse,
}
#[derive(Serialize)]
struct ConnectClusterNodesResponse {
success: bool,
error: Option<String>,
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct GetClusterLayoutResponse {
version: u64,
roles: HashMap<String, Option<NodeRole>>,
staged_role_changes: HashMap<String, Option<NodeRole>>,
}
#[derive(Serialize)]
struct KnownNodeResp {
addr: SocketAddr,
is_up: bool,
last_seen_secs_ago: Option<u64>,
hostname: String,
}
pub async fn handle_update_cluster_layout(
garage: &Arc<Garage>,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let updates = parse_json_body::<UpdateClusterLayoutRequest>(req).await?;
let mut layout = garage.system.get_cluster_layout();
let mut roles = layout.roles.clone();
roles.merge(&layout.staging);
for (node, role) in updates {
let node = hex::decode(node).ok_or_bad_request("Invalid node identifier")?;
let node = Uuid::try_from(&node).ok_or_bad_request("Invalid node identifier")?;
layout
.staging
.merge(&roles.update_mutator(node, NodeRoleV(role)));
}
garage.system.update_cluster_layout(&layout).await?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::empty())?)
}
pub async fn handle_apply_cluster_layout(
garage: &Arc<Garage>,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let param = parse_json_body::<ApplyRevertLayoutRequest>(req).await?;
let layout = garage.system.get_cluster_layout();
let layout = layout.apply_staged_changes(Some(param.version))?;
garage.system.update_cluster_layout(&layout).await?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::empty())?)
}
pub async fn handle_revert_cluster_layout(
garage: &Arc<Garage>,
req: Request<Body>,
) -> Result<Response<Body>, Error> {
let param = parse_json_body::<ApplyRevertLayoutRequest>(req).await?;
let layout = garage.system.get_cluster_layout();
let layout = layout.revert_staged_changes(Some(param.version))?;
garage.system.update_cluster_layout(&layout).await?;
Ok(Response::builder()
.status(StatusCode::OK)
.body(Body::empty())?)
}
type UpdateClusterLayoutRequest = HashMap<String, Option<NodeRole>>;
#[derive(Deserialize)]
struct ApplyRevertLayoutRequest {
version: u64,
}