From 52376d47caf747f5cf93a21e5c15e4e6b8d991ee Mon Sep 17 00:00:00 2001 From: Alex Auvolat Date: Wed, 14 Jun 2023 13:45:27 +0200 Subject: admin api: change cluster status/layout to use lists and not maps (fix #377) --- src/api/admin/cluster.rs | 125 ++++++++++++++++++++++++++++++++++------------- src/api/admin/router.rs | 6 +-- 2 files changed, 95 insertions(+), 36 deletions(-) (limited to 'src/api') diff --git a/src/api/admin/cluster.rs b/src/api/admin/cluster.rs index a2c97ee5..8a208a2c 100644 --- a/src/api/admin/cluster.rs +++ b/src/api/admin/cluster.rs @@ -1,4 +1,3 @@ -use std::collections::HashMap; use std::net::SocketAddr; use std::sync::Arc; @@ -8,7 +7,7 @@ use serde::{Deserialize, Serialize}; use garage_util::crdt::*; use garage_util::data::*; -use garage_rpc::layout::*; +use garage_rpc::layout; use garage_model::garage::Garage; @@ -26,16 +25,12 @@ pub async fn handle_get_cluster_status(garage: &Arc) -> Result) -> Result) -> GetClusterLayoutResponse { let layout = garage.system.get_cluster_layout(); + let roles = layout + .roles + .items() + .iter() + .filter_map(|(k, _, v)| v.0.clone().map(|x| (k, x))) + .map(|(k, v)| NodeRoleResp { + id: hex::encode(k), + zone: v.zone.clone(), + capacity: v.capacity, + tags: v.tags.clone(), + }) + .collect::>(); + + let staged_role_changes = layout + .staging_roles + .items() + .iter() + .filter(|(k, _, v)| layout.roles.get(k) != Some(v)) + .map(|(k, _, v)| match &v.0 { + None => NodeRoleChange { + id: hex::encode(k), + remove: true, + ..Default::default() + }, + Some(r) => NodeRoleChange { + id: hex::encode(k), + remove: false, + zone: Some(r.zone.clone()), + capacity: r.capacity, + tags: Some(r.tags.clone()), + }, + }) + .collect::>(); + 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_roles - .items() - .iter() - .filter(|(k, _, v)| layout.roles.get(k) != Some(v)) - .map(|(k, _, v)| (hex::encode(k), v.0.clone())) - .collect(), + roles, + staged_role_changes, } } +// ---- + #[derive(Serialize)] #[serde(rename_all = "camelCase")] struct GetClusterStatusResponse { @@ -109,7 +128,7 @@ struct GetClusterStatusResponse { garage_features: Option<&'static [&'static str]>, rust_version: &'static str, db_engine: String, - known_nodes: HashMap, + known_nodes: Vec, layout: GetClusterLayoutResponse, } @@ -124,19 +143,31 @@ struct ConnectClusterNodesResponse { #[serde(rename_all = "camelCase")] struct GetClusterLayoutResponse { version: u64, - roles: HashMap>, - staged_role_changes: HashMap>, + roles: Vec, + staged_role_changes: Vec, +} + +#[derive(Serialize)] +#[serde(rename_all = "camelCase")] +struct NodeRoleResp { + id: String, + zone: String, + capacity: Option, + tags: Vec, } #[derive(Serialize)] #[serde(rename_all = "camelCase")] struct KnownNodeResp { + id: String, addr: SocketAddr, is_up: bool, last_seen_secs_ago: Option, hostname: String, } +// ---- update functions ---- + pub async fn handle_update_cluster_layout( garage: &Arc, req: Request, @@ -148,13 +179,23 @@ pub async fn handle_update_cluster_layout( let mut roles = layout.roles.clone(); roles.merge(&layout.staging_roles); - for (node, role) in updates { - let node = hex::decode(node).ok_or_bad_request("Invalid node identifier")?; + for change in updates { + let node = hex::decode(&change.id).ok_or_bad_request("Invalid node identifier")?; let node = Uuid::try_from(&node).ok_or_bad_request("Invalid node identifier")?; + let new_role = match (change.remove, change.zone, change.capacity, change.tags) { + (true, None, None, None) => None, + (false, Some(zone), capacity, Some(tags)) => Some(layout::NodeRole { + zone, + capacity, + tags, + }), + _ => return Err(Error::bad_request("Invalid layout change")), + }; + layout .staging_roles - .merge(&roles.update_mutator(node, NodeRoleV(role))); + .merge(&roles.update_mutator(node, layout::NodeRoleV(new_role))); } garage.system.update_cluster_layout(&layout).await?; @@ -196,10 +237,28 @@ pub async fn handle_revert_cluster_layout( .body(Body::empty())?) } -type UpdateClusterLayoutRequest = HashMap>; +// ---- + +type UpdateClusterLayoutRequest = Vec; #[derive(Deserialize)] #[serde(rename_all = "camelCase")] struct ApplyRevertLayoutRequest { version: u64, } + +// ---- + +#[derive(Serialize, Deserialize, Default)] +#[serde(rename_all = "camelCase")] +struct NodeRoleChange { + id: String, + #[serde(default)] + remove: bool, + #[serde(default)] + zone: Option, + #[serde(default)] + capacity: Option, + #[serde(default)] + tags: Option>, +} diff --git a/src/api/admin/router.rs b/src/api/admin/router.rs index 0dcb1546..5af3ffb5 100644 --- a/src/api/admin/router.rs +++ b/src/api/admin/router.rs @@ -95,12 +95,12 @@ impl Endpoint { GET "/check" => CheckWebsiteEnabled, GET "/health" => Health, GET "/metrics" => Metrics, - GET "/v0/status" => GetClusterStatus, + GET "/v1/status" => GetClusterStatus, GET "/v0/health" => GetClusterHealth, POST "/v0/connect" => ConnectClusterNodes, // Layout endpoints - GET "/v0/layout" => GetClusterLayout, - POST "/v0/layout" => UpdateClusterLayout, + GET "/v1/layout" => GetClusterLayout, + POST "/v1/layout" => UpdateClusterLayout, POST "/v0/layout/apply" => ApplyClusterLayout, POST "/v0/layout/revert" => RevertClusterLayout, // API key endpoints -- cgit v1.2.3