2022-05-24 10:16:39 +00:00
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use std::collections::HashMap;
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use std::net::SocketAddr;
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use std::sync::Arc;
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use hyper::{Body, Request, Response, StatusCode};
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use serde::{Deserialize, Serialize};
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use garage_util::crdt::*;
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use garage_util::data::*;
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use garage_rpc::layout::*;
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use garage_model::garage::Garage;
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use crate::admin::error::*;
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2022-05-25 15:05:56 +00:00
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use crate::helpers::{json_ok_response, parse_json_body};
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2022-05-24 10:16:39 +00:00
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pub async fn handle_get_cluster_status(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
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let res = GetClusterStatusResponse {
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node: hex::encode(garage.system.id),
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garage_version: garage.system.garage_version(),
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2022-06-08 08:01:44 +00:00
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db_engine: garage.db.engine(),
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2022-05-24 10:16:39 +00:00
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known_nodes: garage
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.system
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.get_known_nodes()
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.into_iter()
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.map(|i| {
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(
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hex::encode(i.id),
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KnownNodeResp {
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addr: i.addr,
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is_up: i.is_up,
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last_seen_secs_ago: i.last_seen_secs_ago,
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hostname: i.status.hostname,
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},
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)
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})
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.collect(),
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layout: get_cluster_layout(garage),
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};
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2022-05-25 15:05:56 +00:00
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Ok(json_ok_response(&res)?)
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2022-05-24 10:16:39 +00:00
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}
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pub async fn handle_connect_cluster_nodes(
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garage: &Arc<Garage>,
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req: Request<Body>,
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) -> Result<Response<Body>, Error> {
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let req = parse_json_body::<Vec<String>>(req).await?;
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let res = futures::future::join_all(req.iter().map(|node| garage.system.connect(node)))
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.await
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.into_iter()
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.map(|r| match r {
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Ok(()) => ConnectClusterNodesResponse {
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success: true,
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error: None,
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},
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Err(e) => ConnectClusterNodesResponse {
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success: false,
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error: Some(format!("{}", e)),
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},
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})
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.collect::<Vec<_>>();
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2022-05-25 15:05:56 +00:00
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Ok(json_ok_response(&res)?)
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2022-05-24 10:16:39 +00:00
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}
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pub async fn handle_get_cluster_layout(garage: &Arc<Garage>) -> Result<Response<Body>, Error> {
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let res = get_cluster_layout(garage);
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2022-05-25 15:05:56 +00:00
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Ok(json_ok_response(&res)?)
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2022-05-24 10:16:39 +00:00
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}
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fn get_cluster_layout(garage: &Arc<Garage>) -> GetClusterLayoutResponse {
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let layout = garage.system.get_cluster_layout();
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GetClusterLayoutResponse {
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version: layout.version,
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roles: layout
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.roles
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.items()
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.iter()
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.filter(|(_, _, v)| v.0.is_some())
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.map(|(k, _, v)| (hex::encode(k), v.0.clone()))
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.collect(),
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staged_role_changes: layout
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.staging
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.items()
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.iter()
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.filter(|(k, _, v)| layout.roles.get(k) != Some(v))
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.map(|(k, _, v)| (hex::encode(k), v.0.clone()))
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.collect(),
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}
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}
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#[derive(Serialize)]
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#[serde(rename_all = "camelCase")]
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struct GetClusterStatusResponse {
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node: String,
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garage_version: &'static str,
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2022-06-08 08:01:44 +00:00
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db_engine: String,
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2022-05-24 10:16:39 +00:00
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known_nodes: HashMap<String, KnownNodeResp>,
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layout: GetClusterLayoutResponse,
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}
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#[derive(Serialize)]
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struct ConnectClusterNodesResponse {
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success: bool,
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error: Option<String>,
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}
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#[derive(Serialize)]
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#[serde(rename_all = "camelCase")]
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struct GetClusterLayoutResponse {
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version: u64,
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roles: HashMap<String, Option<NodeRole>>,
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staged_role_changes: HashMap<String, Option<NodeRole>>,
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}
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#[derive(Serialize)]
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struct KnownNodeResp {
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addr: SocketAddr,
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is_up: bool,
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last_seen_secs_ago: Option<u64>,
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hostname: String,
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}
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pub async fn handle_update_cluster_layout(
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garage: &Arc<Garage>,
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req: Request<Body>,
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) -> Result<Response<Body>, Error> {
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let updates = parse_json_body::<UpdateClusterLayoutRequest>(req).await?;
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let mut layout = garage.system.get_cluster_layout();
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let mut roles = layout.roles.clone();
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roles.merge(&layout.staging);
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for (node, role) in updates {
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let node = hex::decode(node).ok_or_bad_request("Invalid node identifier")?;
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let node = Uuid::try_from(&node).ok_or_bad_request("Invalid node identifier")?;
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layout
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.staging
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.merge(&roles.update_mutator(node, NodeRoleV(role)));
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}
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garage.system.update_cluster_layout(&layout).await?;
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Ok(Response::builder()
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.status(StatusCode::OK)
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.body(Body::empty())?)
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}
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pub async fn handle_apply_cluster_layout(
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garage: &Arc<Garage>,
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req: Request<Body>,
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) -> Result<Response<Body>, Error> {
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let param = parse_json_body::<ApplyRevertLayoutRequest>(req).await?;
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let layout = garage.system.get_cluster_layout();
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let layout = layout.apply_staged_changes(Some(param.version))?;
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garage.system.update_cluster_layout(&layout).await?;
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Ok(Response::builder()
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.status(StatusCode::OK)
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.body(Body::empty())?)
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}
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pub async fn handle_revert_cluster_layout(
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garage: &Arc<Garage>,
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req: Request<Body>,
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) -> Result<Response<Body>, Error> {
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let param = parse_json_body::<ApplyRevertLayoutRequest>(req).await?;
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let layout = garage.system.get_cluster_layout();
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let layout = layout.revert_staged_changes(Some(param.version))?;
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garage.system.update_cluster_layout(&layout).await?;
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Ok(Response::builder()
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.status(StatusCode::OK)
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.body(Body::empty())?)
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}
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type UpdateClusterLayoutRequest = HashMap<String, Option<NodeRole>>;
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#[derive(Deserialize)]
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struct ApplyRevertLayoutRequest {
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version: u64,
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}
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