Clickhouse cluster reconfigurator execution (oxidecomputer#6762)

Create a clickhouse-admin-client and use it in reconfigurator execution
for clickhouse keepers and servers.

Note that since the policy is disabled, there won't be a
`Some(clickhouse_cluster_config)` in the blueprint and the execution
will be skipped.

Cargo.toml

@@ -6,6 +6,7 @@ members = [
     "clickhouse-admin",
     "clickhouse-admin/api",
     "clients/bootstrap-agent-client",
+    "clients/clickhouse-admin-client",
     "clients/cockroach-admin-client",
     "clients/ddm-admin-client",
     "clients/dns-service-client",
@@ -126,6 +127,7 @@ default-members = [
     "clickhouse-admin/api",
     "clickhouse-admin/types",
     "clients/bootstrap-agent-client",
+    "clients/clickhouse-admin-client",
     "clients/cockroach-admin-client",
     "clients/ddm-admin-client",
     "clients/dns-service-client",
@@ -314,6 +316,7 @@ chrono = { version = "0.4", features = [ "serde" ] }
 ciborium = "0.2.2"
 clap = { version = "4.5", features = ["cargo", "derive", "env", "wrap_help"] }
 clickhouse-admin-api = { path = "clickhouse-admin/api" }
+clickhouse-admin-client = { path = "clients/clickhouse-admin-client" }
 clickhouse-admin-types = { path = "clickhouse-admin/types" }
 clickward = { git = "https://github.com/oxidecomputer/clickward", rev = "ceec762e6a87d2a22bf56792a3025e145caa095e" }
 cockroach-admin-api = { path = "cockroach-admin/api" }

clickhouse-admin/api/src/lib.rs

@@ -12,17 +12,17 @@ use dropshot::{
 };
 use omicron_common::api::external::Generation;
 use schemars::JsonSchema;
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 
-#[derive(Debug, Deserialize, JsonSchema)]
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
 pub struct ServerConfigurableSettings {
     /// A unique identifier for the configuration generation.
     pub generation: Generation,
     /// Configurable settings for a ClickHouse replica server node.
     pub settings: ServerSettings,
 }
 
-#[derive(Debug, Deserialize, JsonSchema)]
+#[derive(Debug, Serialize, Deserialize, JsonSchema)]
 pub struct KeeperConfigurableSettings {
     /// A unique identifier for the configuration generation.
     pub generation: Generation,

clients/clickhouse-admin-client/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "clickhouse-admin-client"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+chrono.workspace = true
+clickhouse-admin-types.workspace = true
+clickhouse-admin-api.workspace = true
+omicron-uuid-kinds.workspace = true
+progenitor.workspace = true
+reqwest = { workspace = true, features = [ "json", "rustls-tls", "stream" ] }
+schemars.workspace = true
+serde.workspace = true
+slog.workspace = true
+omicron-workspace-hack.workspace = true
+
+[lints]
+workspace = true

clients/clickhouse-admin-client/src/lib.rs

@@ -0,0 +1,27 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+//! Interface for making API requests to a clickhouse-admin server running in
+//! an omicron zone.
+
+progenitor::generate_api!(
+    spec = "../../openapi/clickhouse-admin.json",
+    inner_type = slog::Logger,
+    pre_hook = (|log: &slog::Logger, request: &reqwest::Request| {
+        slog::debug!(log, "client request";
+            "method" => %request.method(),
+            "uri" => %request.url(),
+            "body" => ?&request.body(),
+        );
+    }),
+    post_hook = (|log: &slog::Logger, result: &Result<_, _>| {
+        slog::debug!(log, "client response"; "result" => ?result);
+    }),
+    derives = [schemars::JsonSchema],
+    replace = {
+        TypedUuidForOmicronZoneKind = omicron_uuid_kinds::OmicronZoneUuid,
+        KeeperConfigurableSettings = clickhouse_admin_api::KeeperConfigurableSettings,
+        ServerConfigurableSettings = clickhouse_admin_api::ServerConfigurableSettings,
+    }
+);

nexus/reconfigurator/execution/Cargo.toml

@@ -11,6 +11,10 @@ omicron-rpaths.workspace = true
 
 [dependencies]
 anyhow.workspace = true
+camino.workspace = true
+clickhouse-admin-api.workspace = true
+clickhouse-admin-client.workspace = true
+clickhouse-admin-types.workspace = true
 cockroach-admin-client.workspace = true
 dns-service-client.workspace = true
 chrono.workspace = true