admin api: change cluster status/layout to use lists and not maps (fix #377)

This commit is contained in:
Alex 2023-06-14 13:45:27 +02:00
parent 187240e539
commit 52376d47ca
3 changed files with 175 additions and 75 deletions

View file

@ -56,7 +56,7 @@ See `/v0/health` for an API that also returns JSON output.
### Cluster operations
#### GetClusterStatus `GET /v0/status`
#### GetClusterStatus `GET /v1/status`
Returns the cluster's current status in JSON, including:
@ -70,67 +70,93 @@ Example response body:
```json
{
"node": "ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f",
"garage_version": "git:v0.8.0",
"knownNodes": {
"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f": {
"garageVersion": "git:v0.9.0-dev",
"garageFeatures": [
"k2v",
"sled",
"lmdb",
"sqlite",
"metrics",
"bundled-libs"
],
"rustVersion": "1.68.0",
"dbEngine": "LMDB (using Heed crate)",
"knownNodes": [
{
"id": "ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f",
"addr": "10.0.0.11:3901",
"is_up": true,
"last_seen_secs_ago": 9,
"hostname": "node1"
},
"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff": {
{
"id": "4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff",
"addr": "10.0.0.12:3901",
"is_up": true,
"last_seen_secs_ago": 1,
"hostname": "node2"
},
"23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27": {
{
"id": "23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27",
"addr": "10.0.0.21:3901",
"is_up": true,
"last_seen_secs_ago": 7,
"hostname": "node3"
},
"e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b": {
{
"id": "e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b",
"addr": "10.0.0.22:3901",
"is_up": true,
"last_seen_secs_ago": 1,
"hostname": "node4"
}
},
],
"layout": {
"version": 12,
"roles": {
"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f": {
"roles": [
{
"id": "ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f",
"zone": "dc1",
"capacity": 4,
"capacity": 10737418240,
"tags": [
"node1"
]
},
"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff": {
{
"id": "4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff",
"zone": "dc1",
"capacity": 6,
"capacity": 10737418240,
"tags": [
"node2"
]
},
"23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27": {
{
"id": "23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27",
"zone": "dc2",
"capacity": 10,
"capacity": 10737418240,
"tags": [
"node3"
]
}
},
"stagedRoleChanges": {
"e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b": {
],
"stagedRoleChanges": [
{
"id": "e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b",
"remove": false,
"zone": "dc2",
"capacity": 5,
"capacity": 10737418240,
"tags": [
"node4"
]
}
{
"id": "23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27",
"remove": true,
"zone": null,
"capacity": null,
"tags": null,
}
]
}
}
```
@ -198,7 +224,7 @@ Example response:
]
```
#### GetClusterLayout `GET /v0/layout`
#### GetClusterLayout `GET /v1/layout`
Returns the cluster's current layout in JSON, including:
@ -212,42 +238,54 @@ Example response body:
```json
{
"version": 12,
"roles": {
"ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f": {
"roles": [
{
"id": "ec79480e0ce52ae26fd00c9da684e4fa56658d9c64cdcecb094e936de0bfe71f",
"zone": "dc1",
"capacity": 4,
"capacity": 10737418240,
"tags": [
"node1"
]
},
"4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff": {
{
"id": "4a6ae5a1d0d33bf895f5bb4f0a418b7dc94c47c0dd2eb108d1158f3c8f60b0ff",
"zone": "dc1",
"capacity": 6,
"capacity": 10737418240,
"tags": [
"node2"
]
},
"23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27": {
{
"id": "23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27",
"zone": "dc2",
"capacity": 10,
"capacity": 10737418240,
"tags": [
"node3"
]
}
},
"stagedRoleChanges": {
"e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b": {
],
"stagedRoleChanges": [
{
"id": "e2ee7984ee65b260682086ec70026165903c86e601a4a5a501c1900afe28d84b",
"remove": false,
"zone": "dc2",
"capacity": 5,
"capacity": 10737418240,
"tags": [
"node4"
]
}
{
"id": "23ffd0cdd375ebff573b20cc5cef38996b51c1a7d6dbcf2c6e619876e507cf27",
"remove": true,
"zone": null,
"capacity": null,
"tags": null,
}
]
}
```
#### UpdateClusterLayout `POST /v0/layout`
#### UpdateClusterLayout `POST /v1/layout`
Send modifications to the cluster layout. These modifications will
be included in the staged role changes, visible in subsequent calls
@ -259,8 +297,9 @@ the layout.
Request body format:
```json
[
{
<node_id>: {
"id": <node_id>,
"capacity": <new_capacity>,
"zone": <new_zone>,
"tags": [
@ -268,9 +307,11 @@ Request body format:
...
]
},
<node_id_to_remove>: null,
...
{
"id": <node_id_to_remove>,
"remove": true
}
]
```
Contrary to the CLI that may update only a subset of the fields

View file

@ -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<Garage>) -> Result<Response<
.system
.get_known_nodes()
.into_iter()
.map(|i| {
(
hex::encode(i.id),
KnownNodeResp {
.map(|i| KnownNodeResp {
id: hex::encode(i.id),
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),
@ -82,25 +77,49 @@ pub async fn handle_get_cluster_layout(garage: &Arc<Garage>) -> Result<Response<
fn get_cluster_layout(garage: &Arc<Garage>) -> GetClusterLayoutResponse {
let layout = garage.system.get_cluster_layout();
GetClusterLayoutResponse {
version: layout.version,
roles: layout
let 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
.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::<Vec<_>>();
let 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(),
.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::<Vec<_>>();
GetClusterLayoutResponse {
version: layout.version,
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<String, KnownNodeResp>,
known_nodes: Vec<KnownNodeResp>,
layout: GetClusterLayoutResponse,
}
@ -124,19 +143,31 @@ struct ConnectClusterNodesResponse {
#[serde(rename_all = "camelCase")]
struct GetClusterLayoutResponse {
version: u64,
roles: HashMap<String, Option<NodeRole>>,
staged_role_changes: HashMap<String, Option<NodeRole>>,
roles: Vec<NodeRoleResp>,
staged_role_changes: Vec<NodeRoleChange>,
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct NodeRoleResp {
id: String,
zone: String,
capacity: Option<u64>,
tags: Vec<String>,
}
#[derive(Serialize)]
#[serde(rename_all = "camelCase")]
struct KnownNodeResp {
id: String,
addr: SocketAddr,
is_up: bool,
last_seen_secs_ago: Option<u64>,
hostname: String,
}
// ---- update functions ----
pub async fn handle_update_cluster_layout(
garage: &Arc<Garage>,
req: Request<Body>,
@ -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<String, Option<NodeRole>>;
// ----
type UpdateClusterLayoutRequest = Vec<NodeRoleChange>;
#[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<String>,
#[serde(default)]
capacity: Option<u64>,
#[serde(default)]
tags: Option<Vec<String>>,
}

View file

@ -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