Hybrid and Sovereign AI on Anthos Bare Metal

AI and Machine Learning workflows using TensorFlow on Anthos Bare Metal. TensorFlow is one of the most popular ML frameworks (10M+ downloads per month) in use today, but at the same time presents a lot of challenges when it comes to setup (GPUs, CUDA Drivers, TF Serving etc), performance tuning, cluster provisioning, maintenance, and model serving. This work will showcase the easy to use guides for ML model serving, training, infrastructure, ML Notebooks, and more on Anthos Bare Metal.

Terraform as IaC Substrate

Terraform is an open-source infrastructure as code software tool, and one of the ways in which Enterprise IT teams create, manage, and update infrastructure resources such as physical machines, VMs, switches, containers, and more. Provisioning the hardware or resources is always the first step in the process and these guides will be using Terraform as a common substrate to create the infrastructure for AI/ML apps. Checkout our upstream contribution to the Google Terraform Provider for GPU support in the instance_template module.

Serving TensorFlow ResNet Model on ABM

In this installation you'll see how to create an end-to-end TensorFlow ML serving ResNet installation on ABM using Google Compute Engine. Once the setup is completed, you'll be able to send image classification requests using GRPC client to ABM ML Serving cluster.

Requirements

  • Google Cloud Platform access and install gcloud SDK
  • Service Account JSON
  • Terraform, Git, Container Image

ResNet SavedModel Image on GCR

Let's create a local directory and download the Deep residual network (ResNet) model.

rm -rf /tmp/resnet
mkdir /tmp/resnet
curl -s http://download.tensorflow.org/models/official/20181001_resnet/savedmodels/resnet_v2_fp32_savedmodel_NHWC_jpg.tar.gz | tar --strip-components=2 -C /tmp/resnet -xvz

Verify the SavedModel

ls /tmp/resnet/*
saved_model.pb variables

Now we will commit the ResNet serving docker image:

docker run -d --name serving_base tensorflow/serving
docker cp /tmp/resnet serving_base:/models/resnet
docker commit --change "ResNet model" serving_base $USER/resnet_serving
docker kill serving_base
docker rm serving_base

Copy the local docker image to gcr.io

export GCR_IMAGE_PATH="gcr.io/$GCP_PROJECT/abm_serving/resnet"
docker tar $USER/resnet_serving $GCR_IMAGE_PATH
docker push $GCR_IMAGEPATH

ABM GCE Cluster using Terraform

Create GCE demo host and perform few steps to setup the host:

export SERVICE_ACCOUNT_FILE=<FILE_LOCATION>

export DEMO_HOST="abm-demo-host-live"
gcloud compute instances create $DEMO_HOST --zone=us-central1-a
gcloud compute scp $SERVICE_ACCOUNT_FILE [email protected]$DEMO_HOST:

Perform ssh login into the demo machine and follow steps below:

gcloud compute ssh $DEMO_HOST --zone=us-central1-a

# Activate Service Account
gcloud auth activate-service-account --key-file=$SERVICE_ACCOUNT_FILE

# Install Git
sudo apt-get install git

# Install Terraform
# v0.14.10
export TERRAFORM_VERSION="0.14.10"

List current Anthos/GKE clusters using hub membership. You can list existing clusters and compare it with newly created clusters.

# List Anthos BM clusters
gcloud container hub memberships list

Install Terraform, and make few minor changes to configuration files:

# Remove any previous versions. You can skip if this is a new instance
sudo apt remove terraform

sudo apt-get install software-properties-common

curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
sudo apt-add-repository "deb [arch=amd64] https://apt.releases.hashicorp.com $(lsb_release -cs) main"
sudo apt-get update && sudo apt-get install terraform=$TERRAFORM_VERSION

terraform -version

Let's setup some ABM infrastructure on GCE using Terraform

# Git clone ABM Terraform setup
git clone https://github.com/GoogleCloudPlatform/anthos-samples.git
cd anthos-samples
git checkout abm-gcp-tf-demo
cd anthos-bm-gcp-terraform

# Make changes to cluster names and few edits
cp terraform.tfvars.sample terraform.tfvars

Make edits to the variables.tf and terraform.tfvars and also make sure the abm_cluster_id is modified to a unique name

# Change abm_cluster_id and service account name in variables.tf
export CLUSTER_ID=`echo "abm-tensorflow-"$(date +"%m%d%H%M")`
echo $CLUSTER_ID

Create GCE resources using Terraform and verify

# Terraform init and apply
terraform init && terraform plan
terraform apply

# Verify resources using gcloud
gcloud compute instancs list

# Let's create cluster using bmctl and perform pre-flight checks and verify
export KUBECONFIG=$HOME/bmctl-workspace/$CLUSTER_ID/$CLUSTER_ID-kubeconfig

# List ABM clusters
gcloud container hub memberships list

# Listing the details of live-cluster
gcloud container hub memberships describe $LIVE_CLUSTER_NAME

Verify k8s cluster details and check few outputs

kubectl get nodes
kubectl get deployments
kubectl get pods

TensorFlow ResNet model service on ABM Cluster

git clone https://github.com/GoogleCloudPlatform/anthos-ai
cd anthos-ai

kubectl create -f serving/resnet_k8s.yaml

# Let's view deployments and pods
kubectl get deployments
kubectl get pods

kubectl get services
kubectl describe service resnet-abm-service

# Let's send prediction request to ResNet service on ABM
git clone https://github.com/puneith/serving.git
sudo tools/run_in_docker.sh python tensorflow_serving/example/resnet_client_grpc.py $IMAGE_URL --server=10.200.0.51:8500

Return to the demo host and then destroy the demo host

# Destroy resources and demo host
terraform destroy

gcloud compute instances delete $DEMO_HOST

GitHub

https://github.com/GoogleCloudPlatform/anthos-ai