From a5f345828d59062e4e3d54ed80a3b36efde4f7e7 Mon Sep 17 00:00:00 2001
From: Andrew Ballantyne <aballant@redhat.com>
Date: Wed, 18 Oct 2023 15:13:17 -0400
Subject: [PATCH] Expose the DSC status for the client

---
 backend/src/routes/api/dsc/index.ts | 12 ++++++++++
 backend/src/types.ts                | 36 ++++++++++++++++++++++++-----
 backend/src/utils/dsc.ts            | 26 +++++++++++++++++++++
 frontend/src/k8sTypes.ts            | 17 ++++++++++++++
 manifests/base/cluster-role.yaml    |  8 +++++++
 5 files changed, 93 insertions(+), 6 deletions(-)
 create mode 100644 backend/src/routes/api/dsc/index.ts
 create mode 100644 backend/src/utils/dsc.ts

diff --git a/backend/src/routes/api/dsc/index.ts b/backend/src/routes/api/dsc/index.ts
new file mode 100644
index 0000000000..bae485b6db
--- /dev/null
+++ b/backend/src/routes/api/dsc/index.ts
@@ -0,0 +1,12 @@
+import { KubeFastifyInstance } from '../../../types';
+import { secureRoute } from '../../../utils/route-security';
+import { getClusterStatus } from '../../../utils/dsc';
+
+module.exports = async (fastify: KubeFastifyInstance) => {
+  fastify.get(
+    '/status',
+    secureRoute(fastify)(async () => {
+      return getClusterStatus(fastify);
+    }),
+  );
+};
diff --git a/backend/src/types.ts b/backend/src/types.ts
index 1b8e0e6e1e..6c0a4de077 100644
--- a/backend/src/types.ts
+++ b/backend/src/types.ts
@@ -254,7 +254,6 @@ export type KubeDecorator = KubeStatus & {
   customObjectsApi: k8s.CustomObjectsApi;
   rbac: k8s.RbacAuthorizationV1Api;
   currentToken: string;
-
 };
 
 export type KubeFastifyInstance = FastifyInstance & {
@@ -759,10 +758,10 @@ export type GPUInfo = {
 
 export type AcceleratorInfo = {
   configured: boolean;
-  available: {[key: string]: number};
-  total: {[key: string]: number};
-  allocated: {[key: string]: number};
-}
+  available: { [key: string]: number };
+  total: { [key: string]: number };
+  allocated: { [key: string]: number };
+};
 
 export type EnvironmentVariable = EitherNotBoth<
   { value: string | number },
@@ -882,7 +881,6 @@ export type SupportedModelFormats = {
   autoSelect?: boolean;
 };
 
-
 export enum ContainerResourceAttributes {
   CPU = 'cpu',
   MEMORY = 'memory',
@@ -947,3 +945,29 @@ export enum KnownLabels {
   MODEL_SERVING_PROJECT = 'modelmesh-enabled',
   DATA_CONNECTION_AWS = 'opendatahub.io/managed',
 }
+
+type ComponentNames =
+  | 'codeflare'
+  | 'data-science-pipelines-operator'
+  | 'kserve'
+  | 'model-mesh'
+  // Bug: https://github.com/opendatahub-io/opendatahub-operator/issues/641
+  | 'odh-dashboard'
+  | 'ray'
+  | 'workbenches';
+
+export type DataScienceClusterKindStatus = {
+  conditions: [];
+  installedComponents: { [key in ComponentNames]: boolean };
+  phase?: string;
+};
+
+export type DataScienceClusterKind = K8sResourceCommon & {
+  spec: unknown; // we should never need to look into this
+  status: DataScienceClusterKindStatus;
+};
+
+export type DataScienceClusterList = {
+  kind: 'DataScienceClusterList';
+  items: DataScienceClusterKind[];
+};
diff --git a/backend/src/utils/dsc.ts b/backend/src/utils/dsc.ts
new file mode 100644
index 0000000000..eae01bc1e1
--- /dev/null
+++ b/backend/src/utils/dsc.ts
@@ -0,0 +1,26 @@
+import {
+  DataScienceClusterKind,
+  DataScienceClusterKindStatus,
+  DataScienceClusterList,
+  KubeFastifyInstance,
+} from '../types';
+import { createCustomError } from './requestUtils';
+
+export const getClusterStatus = async (
+  fastify: KubeFastifyInstance,
+): Promise<DataScienceClusterKindStatus> => {
+  const result: DataScienceClusterKind | null = await fastify.kube.customObjectsApi
+    .listClusterCustomObject('datasciencecluster.opendatahub.io', 'v1', 'datascienceclusters')
+    .then((res) => (res.body as DataScienceClusterList).items[0])
+    .catch((e) => {
+      fastify.log.error(`Failure to fetch dsc: ${e.response.body}`);
+      return null;
+    });
+
+  if (!result) {
+    // May not be using v2 Operator
+    throw createCustomError('DSC Unavailable', 'Unable to get status', 404);
+  }
+
+  return result.status;
+};
diff --git a/frontend/src/k8sTypes.ts b/frontend/src/k8sTypes.ts
index 329d5008be..bf50b108f1 100644
--- a/frontend/src/k8sTypes.ts
+++ b/frontend/src/k8sTypes.ts
@@ -769,3 +769,20 @@ export type K8sResourceListResult<TResource extends Partial<K8sResourceCommon>>
     continue: string;
   };
 };
+
+type ComponentNames =
+  | 'codeflare'
+  | 'data-science-pipelines-operator'
+  | 'kserve'
+  | 'model-mesh'
+  // Bug: https://github.com/opendatahub-io/opendatahub-operator/issues/641
+  | 'odh-dashboard'
+  | 'ray'
+  | 'workbenches';
+
+/** We don't need or should ever get the full kind, this is the status section */
+export type DataScienceClusterKindStatus = {
+  conditions: K8sCondition[];
+  installedComponents: { [key in ComponentNames]: boolean };
+  phase?: string;
+};
diff --git a/manifests/base/cluster-role.yaml b/manifests/base/cluster-role.yaml
index d21d47cd04..228eaeed7c 100644
--- a/manifests/base/cluster-role.yaml
+++ b/manifests/base/cluster-role.yaml
@@ -164,3 +164,11 @@ rules:
       - delete
     resources:
       - notebooks
+  - apiGroups:
+      - datasciencecluster.opendatahub.io
+    verbs:
+      - list
+      - watch
+      - get
+    resources:
+      - datascienceclusters