[ereport] intial types and dropshot API crate

Cargo.toml

@@ -14,6 +14,7 @@ members = [
     "clients/ddm-admin-client",
     "clients/dns-service-client",
     "clients/dpd-client",
+    "clients/ereporter-client",
     "clients/gateway-client",
     "clients/installinator-client",
     "clients/nexus-client",
@@ -49,6 +50,8 @@ members = [
     "dns-server",
     "dns-server-api",
     "end-to-end-tests",
+    "ereport/api",
+    "ereport/types",
     "gateway",
     "gateway-api",
     "gateway-cli",
@@ -150,6 +153,7 @@ default-members = [
     "clients/ddm-admin-client",
     "clients/dns-service-client",
     "clients/dpd-client",
+    "clients/ereporter-client",
     "clients/gateway-client",
     "clients/installinator-client",
     "clients/nexus-client",
@@ -187,6 +191,8 @@ default-members = [
     "dns-server",
     "dns-server-api",
     "end-to-end-tests",
+    "ereport/api",
+    "ereport/types",
     "gateway",
     "gateway-api",
     "gateway-cli",
@@ -385,6 +391,9 @@ dpd-client = { path = "clients/dpd-client" }
 dropshot = { version = "0.16.0", features = [ "usdt-probes" ] }
 dyn-clone = "1.0.19"
 either = "1.14.0"
+ereporter-api = { path = "ereport/api" }
+ereporter-client = { path = "clients/ereporter-client" }
+ereport-types = { path = "ereport/types" }
 expectorate = "1.1.0"
 fatfs = "0.3.6"
 filetime = "0.2.25"

clients/ereporter-client/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "ereporter-client"
+version = "0.1.0"
+edition = "2024"
+
+[lints]
+workspace = true
+
+[dependencies]
+chrono.workspace = true
+expectorate.workspace = true
+ereport-types.workspace = true
+http.workspace = true
+progenitor.workspace = true
+reqwest = { workspace = true, features = ["json", "rustls-tls", "stream"] }
+schemars.workspace = true
+serde.workspace = true
+slog.workspace = true
+omicron-uuid-kinds.workspace = true
+omicron-workspace-hack.workspace = true
+uuid.workspace = true

clients/ereporter-client/src/lib.rs

@@ -0,0 +1,26 @@
+// 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/.
+
+progenitor::generate_api!(
+    spec = "../../openapi/ereporter/ereporter-latest.json",
+    inner_type = slog::Logger,
+    derives = [schemars::JsonSchema, Clone, Eq, PartialEq],
+    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);
+    }),
+    replace = {
+        Ena = ereport_types::Ena,
+        Ereport = ereport_types::Ereport,
+        Event = ereport_types::Event,
+        ReportKind = ereport_types::ReportKind,
+        TypedUuidForEreporterGenerationKind = omicron_uuid_kinds::EreporterGenerationUuid,
+    }
+);

dev-tools/ls-apis/api-manifest.toml

@@ -270,6 +270,18 @@ and exists as a client library within omicron. This is because the Dendrite \
 repo is not currently open source.
 """
 
+[[apis]]
+client_package_name = "ereporter-client"
+label = "Ereporter"
+server_package_name = "ereporter-api"
+versioned_how = "server"
+notes = """
+Implemented by sled-agents and by MGS, and consumed by Nexus to collect \
+ereports.
+
+The sled-agent and MGS APIs are server-versioned, so this can be as well.
+"""
+
 [[apis]]
 client_package_name = "lldpd-client"
 label = "LLDP daemon"

dev-tools/openapi-manager/Cargo.toml

@@ -18,6 +18,7 @@ cockroach-admin-api.workspace = true
 debug-ignore.workspace = true
 dns-server-api.workspace = true
 dropshot.workspace = true
+ereporter-api.workspace = true
 hex.workspace = true
 fs-err.workspace = true
 gateway-api.workspace = true

dev-tools/openapi-manager/src/omicron.rs

@@ -84,6 +84,18 @@ pub fn all_apis() -> Vec<ManagedApiConfig> {
                 dns_server_api::dns_server_api_mod::stub_api_description,
             ident: "dns-server",
             extra_validation: None,
+        },
+            ManagedApiConfig {
+            title: "Ereporter API",
+            versions: Versions::new_versioned(
+                ereporter_api::supported_versions()
+            ),
+            description: "API for ereport producers",
+            boundary: ApiBoundary::Internal,
+            api_description:
+                ereporter_api::ereporter_api_mod::stub_api_description,
+            ident: "ereporter",
+            extra_validation: None,
         },
         ManagedApiConfig {
             title: "Installinator API",

ereport/api/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "ereporter-api"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+ereport-types.workspace = true
+dropshot.workspace = true
+openapi-manager-types.workspace = true
+schemars.workspace = true
+semver.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+thiserror.workspace = true
+uuid.workspace = true
+omicron-workspace-hack.workspace = true
+
+[lints]
+workspace = true

ereport/api/src/lib.rs

@@ -0,0 +1,117 @@
+// 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/.
+
+//! HTTP API for ereport producers.
+
+use dropshot::HttpError;
+use dropshot::HttpResponseOk;
+use dropshot::Path;
+use dropshot::Query;
+use dropshot::RequestContext;
+pub use ereport_types::Ena;
+pub use ereport_types::Ereport;
+pub use ereport_types::EreporterGenerationUuid;
+pub use ereport_types::Reporter;
+use openapi_manager_types::{
+    SupportedVersion, SupportedVersions, api_versions,
+};
+use schemars::JsonSchema;
+use serde::Deserialize;
+use serde::Serialize;
+use std::num::NonZeroU32;
+use uuid::Uuid;
+
+api_versions!([
+    // WHEN CHANGING THE API (part 1 of 2):
+    //
+    // +- Pick a new semver and define it in the list below.  The list MUST
+    // |  remain sorted, which generally means that your version should go at
+    // |  the very top.
+    // |
+    // |  Duplicate this line, uncomment the *second* copy, update that copy for
+    // |  your new API version, and leave the first copy commented out as an
+    // |  example for the next person.
+    // v
+    // (next_int, IDENT),
+    (1, INITIAL),
+]);
+
+// WHEN CHANGING THE API (part 2 of 2):
+//
+// The call to `api_versions!` above defines constants of type
+// `semver::Version` that you can use in your Dropshot API definition to specify
+// the version when a particular endpoint was added or removed.  For example, if
+// you used:
+//
+//     (2, ADD_FOOBAR)
+//
+// Then you could use `VERSION_ADD_FOOBAR` as the version in which endpoints
+// were added or removed.
+
+/// API for ereport producers.
+#[dropshot::api_description]
+pub trait EreporterApi {
+    type Context;
+
+    /// Collect a tranche of ereports from this reporter.
+    #[endpoint {
+        method = GET,
+        path = "/ereports/{reporter_id}",
+    }]
+    async fn ereports_get(
+        rqctx: RequestContext<Self::Context>,
+        path: Path<ReporterPath>,
+        query: Query<EreportQuery>,
+    ) -> Result<HttpResponseOk<Ereports>, HttpError>;
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct ReporterPath {
+    /// The UUID of the reporter from which to collct ereports.
+    pub reporter_id: Uuid,
+}
+
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct EreportQuery {
+    /// The generation (restart nonce) of the reporter at which all other query
+    /// parameters are valid.
+    ///
+    /// If this value does not match the reporter's current generation, the
+    /// reporter's response will include the current generation, and will start
+    /// at the earliest known ENA, rather than the provided `last_seen` ENA.`
+    pub generation: EreporterGenerationUuid,
+
+    /// If present, the reporter should not include ENAs earlier than this one
+    /// in its response, provided that the query's requested generation matches
+    /// the current generation.
+    pub start_at: Option<Ena>,
+
+    /// The ENA of the last ereport committed to persistent storage from the
+    /// requested reporter generation.
+    ///
+    /// If the generation parameter matches the reporter's current generation,
+    /// it is permitted to discard any ereports with ENAs up to and including
+    /// this value. If the generation has changed from the provided generation,
+    /// the reporter will not discard data.
+    pub committed: Option<Ena>,
+
+    /// Maximum number of ereports to return in this tranche.
+    pub limit: NonZeroU32,
+}
+
+/// A tranche of ereports received from a reporter.
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
+pub struct Ereports {
+    /// The reporter's current generation ID.
+    ///
+    /// If this is not equal to the current known generation, then the reporter
+    /// has restarted.
+    pub generation: EreporterGenerationUuid,
+    /// The values of the ereports in this tranche.
+    pub reports: Vec<Ereport>,
+    /// If more ereports are present, this value contains the ENA of the ereport
+    /// immediately after the last report in this tranche. If this is None, no
+    /// more ereports are currently avaialble.
+    pub next_page: Option<Ena>,
+}

ereport/types/Cargo.toml

@@ -0,0 +1,15 @@
+[package]
+name = "ereport-types"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+omicron-uuid-kinds.workspace = true
+schemars.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+uuid.workspace = true
+omicron-workspace-hack.workspace = true
+
+[lints]
+workspace = true