Add a3u-gke-gcs blueprint

examples/hypercompute_clusters/a3u-gke-gcs/README.md

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+# A3-Ultra GKE + GCS Reference Design
+
+This reference design provides a high-performance and scalable architecture for
+deploying AI/ML workloads on Google Kubernetes Engine (GKE) with Google Cloud
+Storage (GCS).
+
+## Key Features
+
+* **Multi-VPC Design:** Utilizes three VPCs: two for GKE nodes and one dedicated
+  for GPU RDMA networks.
+* **Cloud Storage Fuse Integration:** Enables seamless access to GCS buckets
+  from within your containers using the [Cloud Storage Fuse CSI Driver](https://cloud.google.com/kubernetes-engine/docs/how-to/persistent-volumes/cloud-storage-fuse-csi-driver).
+  Cloud Storage Fuse is configured to utilize the 12 TB of Local SSD
+* **Hierarchical Namespace Buckets:** Leverages GCS buckets with Hierarchical
+  Namespace enabled, optimizing performance for checkpointing and restarting
+  workloads. (Requires GKE 1.31 or later).
+* **Kueue for Workload Scheduling:** Provides a robust and flexible system for
+  managing your AI/ML training jobs.
+* **Jobset API for Tightly Coupled Workloads:** Facilitates running tightly
+  coupled AI/ML training jobs efficiently.
+
+## Deployment Steps
+
+1. **Build the Cluster Toolkit `gcluster` binary:**
+
+   Follow the instructions [here](https://cloud.google.com/cluster-toolkit/docs/setup/configure-environment).
+
+2. **(Optional) Create a GCS Bucket for Terraform State:**
+
+   This step is recommended for storing your Terraform state. Use the
+   following commands, replacing placeholders with your project details:
+
+   ```bash
+   BUCKET_NAME=<your-bucket-name>
+   PROJECT_ID=<your-gcp-project>
+   REGION=<your-preferred-region>
+
+   gcloud storage buckets create gs://${BUCKET_NAME} \
+       --project=${PROJECT_ID} \
+       --default-storage-class=STANDARD \
+       --location=${REGION} \
+       --uniform-bucket-level-access
+
+   gcloud storage buckets update gs://${BUCKET_NAME} --versioning
+   ```
+
+3. **Create and Configure GCS Buckets:**
+
+   * Create separate GCS buckets for training data and checkpoint/restart data:
+
+     ```bash
+     PROJECT_ID=<your-gcp-project>
+     REGION=<your-preferred-region>
+     TRAINING_BUCKET_NAME=<training-bucket-name>
+     CHECKPOINT_BUCKET_NAME=<checkpoint-bucket-name>
+     PROJECT_NUMBER=<your-project-number>
+
+     gcloud storage buckets create gs://${TRAINING_BUCKET_NAME} \
+         --location=${REGION} \
+         --uniform-bucket-level-access \
+         --enable-hierarchical-namespace
+
+     gcloud storage buckets create gs://${CHECKPOINT_BUCKET_NAME} \
+         --location=${REGION} \
+         --uniform-bucket-level-access \
+         --enable-hierarchical-namespace
+     ```
+
+   * Grant workload identity service accounts (WI SAs) access to the buckets:
+
+     ```bash
+
+     gcloud storage buckets add-iam-policy-binding gs://${TRAINING_BUCKET_NAME} \
+         --member "principal://iam.googleapis.com/projects/${PROJECT_NUMBER}/locations/global/workloadIdentityPools/${PROJECT_ID}.svc.id.goog/subject/ns/default/sa/default" \
+         --role roles/storage.objectUser
+
+     gcloud storage buckets add-iam-policy-binding gs://${CHECKPOINT_BUCKET_NAME} \
+         --member "principal://iam.googleapis.com/projects/$PROJECT_NUMBER}/locations/global/workloadIdentityPools/${PROJECT_ID}.svc.id.goog/subject/ns/default/sa/default" \
+         --role roles/storage.objectUser
+     ```
+
+4. **Customize Deployment Configuration:**
+
+   Modify the `deployment.yaml` file to suit your needs. This will include
+   region/zone, nodepool sizes, reservation name, and checkpoint/training bucket
+   names.
+
+5. **Deploy the Cluster:**
+
+   Use the `gcluster` tool to deploy your GKE cluster with the desired configuration:
+
+   ```bash
+   gcluster deploy -d deployment.yaml a3u-gke-gcs.yaml
+   ```
+
+## Example Workload Job
+
+Once the cluster has been deployed, there will be instructions on how to get
+credentials for the cluster, as well as how to deploy an example workload. This
+example workload uses [fio](https://github.com/axboe/fio) to run a series of
+benchmarks against the LocalSSD and GCSFuse mounts.
+
+The instructions will look something like:
+
+```bash
+Use the following commands to:
+Submit your job:
+  kubectl create -f <PATH/TO/DEPLOYMENT_DIR>/primary/my-job-<some-id>.yaml
+```
+
+## Running System Benchmarks with Ramble
+
+To run a series of NCCL, HPL, and NeMo test benchmarks on your cluster, see
+`system_benchmarks/README.md`.