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GSP938

Overview

In this lab you will learn how to create Compute Engine VMs on Google Cloud with L2 connectivity through the use of vxlan built-in functionality in Linux. You'll be using the Compute Engine VMs to simulate Anthos on Bare Metal (BM) in high-availability mode which requires L2 connectivity. The deployment will consist of 4 VMs to deploy Anthos on BM, 1 x workstation, 1 x control plane nodes and 2 x worker nodes. Then you'll install Anthos Service Mesh and Knative on the BM cluster, followed by deploying Redis Enterprise for GKE and a Serverless application. Finally, this guide will show you how to run a simple load test on the serverless application to realize the elasticity of Knative backed by a Redis datastore.

What you'll learn

In this lab, you will:

• Create an Anthos bare metal cluster
• Install Anthos service mesh and Knative
• Deploy Redis Enterprise cluster
• Create a Redis Enterprise database
• Create a Knative serverless service (incrementing a Redis counter)
• Run a load test against the Knative serverless application

Setup and requirements

Before you click the Start Lab button

Read these instructions. Labs are timed and you cannot pause them. The timer, which starts when you click Start Lab, shows how long Google Cloud resources will be made available to you.

This hands-on lab lets you do the lab activities yourself in a real cloud environment, not in a simulation or demo environment. It does so by giving you new, temporary credentials that you use to sign in and access Google Cloud for the duration of the lab.

To complete this lab, you need:

• Access to a standard internet browser (Chrome browser recommended).

Note: Use an Incognito or private browser window to run this lab. This prevents any conflicts between your personal account and the Student account, which may cause extra charges incurred to your personal account.

• Time to complete the lab---remember, once you start, you cannot pause a lab.

Note: If you already have your own personal Google Cloud account or project, do not use it for this lab to avoid extra charges to your account.

How to start your lab and sign in to the Google Cloud console

1. Click the Start Lab button. If you need to pay for the lab, a pop-up opens for you to select your payment method. On the left is the Lab Details panel with the following:

   • The Open Google Cloud console button
   • Time remaining
   • The temporary credentials that you must use for this lab
   • Other information, if needed, to step through this lab

2. Click Open Google Cloud console (or right-click and select Open Link in Incognito Window if you are running the Chrome browser).

   The lab spins up resources, and then opens another tab that shows the Sign in page.

   Tip: Arrange the tabs in separate windows, side-by-side.

   Note: If you see the Choose an account dialog, click Use Another Account.

3. If necessary, copy the Username below and paste it into the Sign in dialog.

   {{{user_0.username | "Username"}}}

   You can also find the Username in the Lab Details panel.

4. Click Next.

5. Copy the Password below and paste it into the Welcome dialog.

   {{{user_0.password | "Password"}}}

   You can also find the Password in the Lab Details panel.

6. Click Next.

   Important: You must use the credentials the lab provides you. Do not use your Google Cloud account credentials. Note: Using your own Google Cloud account for this lab may incur extra charges.

7. Click through the subsequent pages:

   • Accept the terms and conditions.
   • Do not add recovery options or two-factor authentication (because this is a temporary account).
   • Do not sign up for free trials.

After a few moments, the Google Cloud console opens in this tab.

Note: To view a menu with a list of Google Cloud products and services, click the Navigation menu at the top-left.

Activate Cloud Shell

Cloud Shell is a virtual machine that is loaded with development tools. It offers a persistent 5GB home directory and runs on the Google Cloud. Cloud Shell provides command-line access to your Google Cloud resources.

1. Click Activate Cloud Shell at the top of the Google Cloud console.

When you are connected, you are already authenticated, and the project is set to your Project_ID, . The output contains a line that declares the Project_ID for this session:

Your Cloud Platform project in this session is set to {{{project_0.project_id | "PROJECT_ID"}}}

gcloud is the command-line tool for Google Cloud. It comes pre-installed on Cloud Shell and supports tab-completion.

2. (Optional) You can list the active account name with this command:

gcloud auth list

3. Click Authorize.

Output:

ACTIVE: * ACCOUNT: {{{user_0.username | "ACCOUNT"}}} To set the active account, run: $ gcloud config set account `ACCOUNT`

4. (Optional) You can list the project ID with this command:

gcloud config list project

Output:

[core] project = {{{project_0.project_id | "PROJECT_ID"}}} Note: For full documentation of gcloud, in Google Cloud, refer to the gcloud CLI overview guide.

Task 1. Create an Anthos bare metal cluster

1. In the Cloud Console, open a new Cloud Shell window.

2. Inside Cloud Shell, set the following environment variables for the scripts in this lab:

export PROJECT_ID=$(gcloud config get-value project) export ZONE={{{ project_0.default_zone|(zone) }}} export service_account="baremetal-gcr" export cluster_name=anthos-bm-cluster-1

3. Create the baremetal-gcr account which will be used to authenticate from the Anthos bare metal cluster:

gcloud iam service-accounts create baremetal-gcr gcloud iam service-accounts keys create bm-gcr.json \ --iam-account=baremetal-gcr@${PROJECT_ID}.iam.gserviceaccount.com

Click Check my progress to verify the objective. Create service account and service account key

4. Give additional permissions to baremetal-gcr service account, so you do not have to create multiple SAs for stackdriver, connect agent etc.:

gcloud services enable \ anthos.googleapis.com \ anthosaudit.googleapis.com \ anthosgke.googleapis.com \ cloudresourcemanager.googleapis.com \ container.googleapis.com \ gkeconnect.googleapis.com \ gkehub.googleapis.com \ serviceusage.googleapis.com \ stackdriver.googleapis.com \ monitoring.googleapis.com \ logging.googleapis.com \ connectgateway.googleapis.com \ opsconfigmonitoring.googleapis.com gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/gkehub.connect" gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/gkehub.admin" gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/logging.logWriter" gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/monitoring.metricWriter" gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/monitoring.dashboardEditor" gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/stackdriver.resourceMetadata.writer" gcloud projects add-iam-policy-binding $PROJECT_ID \ --member="serviceAccount:baremetal-gcr@$PROJECT_ID.iam.gserviceaccount.com" \ --role="roles/opsconfigmonitoring.resourceMetadata.writer"

Click Check my progress to verify the objective. Enable APIs and add binding roles

5. Define variables and arrays needed for the commands for this lab:

VM_PREFIX=abm VM_WS=$VM_PREFIX-ws VM_CP1=$VM_PREFIX-cp1 VM_W1=$VM_PREFIX-w1 VM_W2=$VM_PREFIX-w2 declare -a CP_W_VMs=("$VM_CP1" "$VM_W1" "$VM_W2") declare -a VMs=("$VM_WS" "$VM_CP1" "$VM_W1" "$VM_W2") declare -a IPs=()

6. Create four VMs for the Anthos bare metal cluster:

• Admin workstation machine to execute scripts to create the Anthos bare metal cluster and rest of the scripts for this lab
• One control plane master machine of the Anthos bare metal cluster
• Two worker machines of the Anthos bare metal cluster for running workloads
• Create a vxlan with L2 connectivity between all VMs

gcloud compute instances create $VM_WS \ --image-family=ubuntu-2204-lts \ --image-project=ubuntu-os-cloud \ --zone=${ZONE} \ --boot-disk-size 50G \ --boot-disk-type pd-ssd \ --can-ip-forward \ --network default \ --tags http-server,https-server \ --scopes cloud-platform \ --custom-cpu=6 \ --custom-memory=16GB \ --custom-vm-type=e2 \ --metadata=enable-oslogin=FALSE IP=$(gcloud compute instances describe $VM_WS --zone ${ZONE} \ --format='get(networkInterfaces[0].networkIP)') IPs+=("$IP") for vm in "${CP_W_VMs[@]}" do gcloud compute instances create $vm \ --image-family=ubuntu-2204-lts \ --image-project=ubuntu-os-cloud \ --zone=${ZONE} \ --boot-disk-size 150G \ --boot-disk-type pd-ssd \ --can-ip-forward \ --network default \ --tags http-server,https-server \ --scopes cloud-platform \ --custom-cpu=6 \ --custom-memory=16GB \ --custom-vm-type=e2 \ --metadata=enable-oslogin=FALSE IP=$(gcloud compute instances describe $vm --zone ${ZONE} \ --format='get(networkInterfaces[0].networkIP)') IPs+=("$IP") done

You should see 4 VMs have been provisioned in your Google Cloud console like the following:

Click Check my progress to verify the objective. Create instances

7. Wait for SSH to be ready on all VMs:

for vm in "${VMs[@]}" do while ! gcloud compute ssh root@$vm --zone={{{ project_0.default_zone|(zone) }}} --command "echo SSH to $vm succeeded" do echo "Trying to SSH into $vm failed. Sleeping for 5 seconds. zzzZZzzZZ" sleep 5 done done

8. At the prompt asking if you want to continue (Y/n), type Y.

9. Press Enter key a few times to set an empty passphrase.

10. Create a vxlan with L2 connectivity between all VMs:

i=2 for vm in "${VMs[@]}" do gcloud compute ssh root@$vm --zone ${ZONE} << EOF apt-get -qq update > /dev/null apt-get -qq install -y jq > /dev/null set -x ip link add vxlan0 type vxlan id 42 dev ens4 dstport 0 current_ip=\$(ip --json a show dev ens4 | jq '.[0].addr_info[0].local' -r) echo "VM IP address is: \$current_ip" for ip in ${IPs[@]}; do if [ "\$ip" != "\$current_ip" ]; then bridge fdb append to 00:00:00:00:00:00 dst \$ip dev vxlan0 fi done ip addr add 10.200.0.$i/24 dev vxlan0 ip link set up dev vxlan0 systemctl stop apparmor.service systemctl disable apparmor.service EOF i=$((i+1)) done

After you are done you now have L2 connectivity when using the 10.200.0.0/24 network. The VMs will now have the following IP addresses:

• Admin Workstation: 10.200.0.2
• 3 x control plane: 10.200.0.3,4,5
• 3 x worker nodes: 10.200.0.6,7,8

Click Check my progress to verify the objective. Add L2 connectivity 11. Prepare the workstation machine for needed software components for this lab:

• Create service key for the service account
• Install bare metal cluster kit
• Install docker
• Install Siege (load tester)

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -x export PROJECT_ID=\$(gcloud config get-value project) gcloud iam service-accounts keys create bm-gcr.json \ --iam-account=baremetal-gcr@\${PROJECT_ID}.iam.gserviceaccount.com curl -LO "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl" chmod +x kubectl mv kubectl /usr/local/sbin/ mkdir baremetal && cd baremetal gsutil cp gs://anthos-baremetal-release/bmctl/1.16.2/linux-amd64/bmctl . chmod a+x bmctl mv bmctl /usr/local/sbin/ cd ~ echo "Installing docker" curl -fsSL https://get.docker.com -o get-docker.sh sh get-docker.sh # Install siege cd ~ apt install siege -y siege -V cat /root/.siege/siege.conf \ | sed -e "s:^\(connection \=\).*:connection \= keep-alive:" \ > /root/.siege/siege.conf.new mv /root/.siege/siege.conf.new /root/.siege/siege.conf EOF

Click Check my progress to verify the objective. Install software components 12. Create SSH key for the Admin workstation machine and add corresponding public key to the rest of the VMs:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -x ssh-keygen -t rsa -N "" -f /root/.ssh/id_rsa sed 's/ssh-rsa/root:ssh-rsa/' ~/.ssh/id_rsa.pub > ssh-metadata for vm in ${VMs[@]} do gcloud compute instances add-metadata \$vm --zone ${ZONE} --metadata-from-file ssh-keys=ssh-metadata done EOF

Click Check my progress to verify the objective. Create and add ssh keys

13. Navigate to the left side menu bar inside the Google Cloud Console, find Operations section, and select Monitoring > Overview, this will create a monitoring workspace which is required by the script in the next step.

14. Create Anthos bare metal cluster:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -x export PROJECT_ID=$(gcloud config get-value project) export clusterid=${cluster_name} bmctl create config -c \$clusterid cat > bmctl-workspace/\$clusterid/\$clusterid.yaml << EOB --- gcrKeyPath: /root/bm-gcr.json sshPrivateKeyPath: /root/.ssh/id_rsa gkeConnectAgentServiceAccountKeyPath: /root/bm-gcr.json gkeConnectRegisterServiceAccountKeyPath: /root/bm-gcr.json cloudOperationsServiceAccountKeyPath: /root/bm-gcr.json --- apiVersion: v1 kind: Namespace metadata: name: cluster-\$clusterid --- apiVersion: baremetal.cluster.gke.io/v1 kind: Cluster metadata: name: \$clusterid namespace: cluster-\$clusterid spec: type: hybrid anthosBareMetalVersion: 1.16.2 gkeConnect: projectID: \$PROJECT_ID controlPlane: nodePoolSpec: clusterName: \$clusterid nodes: - address: 10.200.0.3 clusterNetwork: pods: cidrBlocks: - 192.168.0.0/16 services: cidrBlocks: - 172.26.232.0/24 loadBalancer: mode: bundled ports: controlPlaneLBPort: 443 vips: controlPlaneVIP: 10.200.0.49 ingressVIP: 10.200.0.50 addressPools: - name: pool1 addresses: - 10.200.0.50-10.200.0.70 clusterOperations: # might need to be this location location: {{{ project_0.default_region|(region) }}} projectID: \$PROJECT_ID storage: lvpNodeMounts: path: /mnt/localpv-disk storageClassName: node-disk lvpShare: numPVUnderSharedPath: 5 path: /mnt/localpv-share storageClassName: standard nodeConfig: podDensity: maxPodsPerNode: 250 containerRuntime: containerd --- apiVersion: baremetal.cluster.gke.io/v1 kind: NodePool metadata: name: node-pool-1 namespace: cluster-\$clusterid spec: clusterName: \$clusterid nodes: - address: 10.200.0.4 - address: 10.200.0.5 EOB bmctl create cluster -c \$clusterid EOF

The installation might take up to 30 minutes to complete. When complete, you would see a similar output as follows:

15. Next you will configure RBAC policies on the Anthos bare metal cluster.

export user_account={{{user_0.username|Lab user name}}}

16. Run the following script to configure RBAC for your Google Cloud login account:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF1 set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/\$clusterid/\$clusterid-kubeconfig cat <<EOF2 > /tmp/impersonate.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRole metadata: name: gateway-impersonate rules: - apiGroups: - "" resourceNames: - ${user_account} resources: - users verbs: - impersonate --- apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: gateway-impersonate roleRef: kind: ClusterRole name: gateway-impersonate apiGroup: rbac.authorization.k8s.io subjects: - kind: ServiceAccount name: connect-agent-sa namespace: gke-connect EOF2 kubectl apply -f /tmp/impersonate.yaml cat <<EOF2 > /tmp/admin-permission.yaml apiVersion: rbac.authorization.k8s.io/v1 kind: ClusterRoleBinding metadata: name: gateway-cluster-admin subjects: - kind: User name: ${user_account} roleRef: kind: ClusterRole name: cluster-admin apiGroup: rbac.authorization.k8s.io EOF2 kubectl apply -f /tmp/admin-permission.yaml EOF1

17. Go to Google Cloud Console and view the Anthos bare metal server under Compute > Kubernetes Engine > Clusters section. You should see the cluster has been authenticated and logged on using your Google Cloud login.

If not, follow the on-screen instructions below to log into the Anthos bare metal server:

18. Click on the three dots on the right side of your cluster.

19. Click Log in.

20. In the pop up window, select Use your Google identity to log-in and click Login.

21. Your cluster should now be authenticated.

Task 2. Install Anthos Service Mesh and Knative

In this section you will deploy Anthos Service Mesh on the bare metal cluster. You will:

• Install Anthos Service Mesh kit
• Configure certs
• Create cacerts secret
• Set network annotation for istio-system namespace
• Configure Anthos Service Mesh Configuration File
• Configure Validation Web Hook

1. First, run the following script to install the Anthos Service Mesh:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/\$clusterid/\$clusterid-kubeconfig apt install make -y curl -LO https://storage.googleapis.com/gke-release/asm/istio-1.19.3-asm.0-linux-amd64.tar.gz tar xzf istio-1.19.3-asm.0-linux-amd64.tar.gz cd istio-1.19.3-asm.0 export PATH="/root/istio-1.19.3-asm.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" mkdir -p certs && \ pushd certs make -f ../tools/certs/Makefile.selfsigned.mk root-ca make -f ../tools/certs/Makefile.selfsigned.mk anthos-on-nucs-cacerts kubectl create namespace istio-system kubectl create secret generic cacerts -n istio-system \ --from-file=anthos-on-nucs/ca-cert.pem \ --from-file=anthos-on-nucs/ca-key.pem \ --from-file=anthos-on-nucs/root-cert.pem \ --from-file=anthos-on-nucs/cert-chain.pem popd kubectl label namespace istio-system topology.istio.io/network=anthos-on-nucs-network cat <<EOF1 > cluster.yaml apiVersion: install.istio.io/v1alpha1 kind: IstioOperator spec: profile: asm-multicloud revision: asm-1193-0 values: global: meshID: anthos-on-nucs-mesh multiCluster: clusterName: $clusterid network: anthos-on-nucs-network EOF1 istioctl install -f cluster.yaml -y cat <<EOF1 > istiod-service.yaml apiVersion: v1 kind: Service metadata: name: istiod namespace: istio-system labels: istio.io/rev: asm-1193-0 app: istiod istio: pilot release: istio spec: ports: - port: 15010 name: grpc-xds # plaintext protocol: TCP - port: 15012 name: https-dns # mTLS with k8s-signed cert protocol: TCP - port: 443 name: https-webhook # validation and injection targetPort: 15017 protocol: TCP - port: 15014 name: http-monitoring # prometheus stats protocol: TCP selector: app: istiod istio.io/rev: asm-1193-0 EOF1 kubectl apply -f istiod-service.yaml EOF

2. Deploy and configure Knative:

• Install Knative
• Update Anthos Service Mesh configuration to add a new cluster-local-gateway

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/\$clusterid/\$clusterid-kubeconfig export PATH="/root/istio-1.19.3-asm.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" kubectl apply -f https://raw.githubusercontent.com/Redislabs-Solution-Architects/qwiklabs/main/Google/anthos-gke/serving-crds.yaml kubectl apply -f https://raw.githubusercontent.com/Redislabs-Solution-Architects/qwiklabs/main/Google/anthos-gke/serving-core.yaml kubectl apply -f https://raw.githubusercontent.com/Redislabs-Solution-Architects/qwiklabs/main/Google/anthos-gke/net-istio.yaml kubectl --namespace istio-system get service istio-ingressgateway kubectl apply -f https://raw.githubusercontent.com/Redislabs-Solution-Architects/qwiklabs/main/Google/anthos-gke/serving-default-domain.yaml kubectl get pods --namespace knative-serving cat > cluster.yaml <<EOF1 apiVersion: install.istio.io/v1alpha1 kind: IstioOperator spec: profile: asm-multicloud revision: asm-1193-0 values: global: meshID: asm-multicloud multiCluster: clusterName: $clusterid network: anthos-on-nucs-network components: ingressGateways: - name: istio-ingressgateway enabled: true - name: cluster-local-gateway enabled: true label: istio: cluster-local-gateway app: cluster-local-gateway k8s: service: type: ClusterIP ports: - port: 15020 name: status-port - port: 80 targetPort: 8080 name: http2 - port: 443 targetPort: 8443 name: https EOF1 istioctl install -f cluster.yaml -y EOF

Task 3. Deploy Redis Enterprise cluster

Now you will deploy the Redis Enterprise Operator and Redis Enterprise cluster using the command line.

1. Run the following script to deploy a Redis Enterprise cluster. First, it will deploy Redis Enterprise Operator for Kubernetes and then followed by Redis Enterprise cluster:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/\$clusterid/\$clusterid-kubeconfig export PATH="/root/istio-1.19.3-asm.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" kubectl create clusterrolebinding my-cluster-admin-binding --clusterrole cluster-admin --user $(gcloud config get-value account) kubectl create namespace redis kubectl apply --filename "https://raw.githubusercontent.com/Redislabs-Solution-Architects/qwiklabs/main/Google/anthos-gke/bundle.yaml" -n redis sleep 10 kubectl apply --filename "https://raw.githubusercontent.com/Redislabs-Solution-Architects/qwiklabs/main/Google/anthos-gke/rec.yaml" -n redis EOF

2. The deployment will take about 10 minutes to complete. Once it is complete, you should see this line: statefulset.apps/redis-enterprise 1/1 5m after running the following script:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/\$clusterid/\$clusterid-kubeconfig export PATH="/root/istio-1.19.3-asm.0/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" kubectl get sts -n redis EOF

1/1 indicates a single-node Redis Enterprise cluster has been successfully created with 1 backing Kubernetes pod.

Task 4. Create a Redis Enterprise database

• Run the following script to create a Redis Enterprise database:

gcloud compute ssh root@$VM_WS --zone ${ZONE} << EOF1 set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/\$clusterid/\$clusterid-kubeconfig cat <<EOF2 > /tmp/redis-enterprise-database.yaml apiVersion: app.redislabs.com/v1alpha1 kind: RedisEnterpriseDatabase metadata: name: redis-enterprise-database spec: memorySize: 100MB EOF2 kubectl apply -f /tmp/redis-enterprise-database.yaml -n redis EOF1

Task 5. Create a Knative serverless service (incrementing a Redis counter)

• This Knative service is a web application counting number of visitors at RedisConf conference
• It uses Knative concurrency-based auto-scaling at 2 requests in-flight per pod
• It has a minimum of 1 pod and maximum of 5 pods. It scales based on current workload.

1. Go inside the Admin workstation machine:

gcloud compute ssh root@$VM_WS --zone ${ZONE}

2. Then run the following script to create the Knative service:

set -ex export clusterid=${cluster_name} export KUBECONFIG=/root/bmctl-workspace/anthos-bm-cluster-1/anthos-bm-cluster-1-kubeconfig export redispassword=`kubectl get secrets -n redis redb-redis-enterprise-database -o json | jq '.data | {password}[] | @base64d'` export redishost=`kubectl get svc -n redis | grep "redis-enterprise-database " | awk '{print $3}' | awk '{split($0,a,"/"); print a[1]}'` export redisport=`kubectl get secrets -n redis redb-redis-enterprise-database -o json | jq -r '.data | {port}[] | @base64d'` cat <<EOF2 > /tmp/redisconf.yaml apiVersion: serving.knative.dev/v1 kind: Service metadata: name: redisconf namespace: default spec: template: metadata: annotations: # Knative concurrency-based autoscaling (default). autoscaling.knative.dev/class: kpa.autoscaling.knative.dev autoscaling.knative.dev/metric: concurrency # Target 2 requests in-flight per pod. autoscaling.knative.dev/target: "2" # Disable scale to zero with a minScale of 1. autoscaling.knative.dev/minScale: "1" # Limit scaling to 5 pods. autoscaling.knative.dev/maxScale: "5" spec: containers: - name: redisconf-container image: gcr.io/central-beach-194106/visit-count:latest ports: - containerPort: 80 env: - name: REDISHOST value: ${redishost} - name: REDISPORT value: '${redisport}' - name: REDISPASSWORD value: ${redispassword} EOF2 kubectl apply -f /tmp/redisconf.yaml

3. Remain inside the Admin workstation machine and run the following to verify the Knative service is up and running and view the status of the "redisconf" Knative service:

kubectl get ksvc redisconf

4. Access the Knative service via a curl command:

curl http://redisconf.default.10.200.0.51.sslip.io

You should see a similar output like the following from the curl command:

Task 6. Run a load test against the Knative serverless application

1. In the existing Cloud Shell terminal, run the following command to view the status of redisconf Knative service:

watch kubectl get deployment

You will notice the number of pods for redisconf deployment will increase when executing the load-test in a new terminal window.

2. Open another terminal (Cloud Shell) by clicking (+) right after the current terminal tab and get inside the Admin workstation machine by running the following commands:

VM_WS=abm-ws ZONE={{{ project_0.default_zone|(zone) }}} gcloud compute ssh root@$VM_WS --zone ${ZONE}

3. Once inside the Admin workstation machine, run:

siege -c10 -t30S http://redisconf.default.10.200.0.51.sslip.io

4. Go back to the first Cloud Shell, you should see the number of READY pods increase as follows:

The load test's result from Siege in the second Cloud Shell should look like the following:

Congratulations!

To summarize, you have the accomplished the following in the lab:

• Create an Anthos bare metal cluster on Compute Engine
• Create an Anthos service mesh and install Knative
• Install Redis Enterprise cluster for GKE on an Anthos bare metal cluster
• Create a Redis Enterprise database
• Install a Knative service serving a web-app endpoint using a Redis global counter
• Run a load-test using Siege to demonstrate the auto-scaling capability of Knative service on an Anthos bare metal cluster

Next steps / Learn more

• Redis Enterprise on the Google Cloud Marketplace

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Manual Last Updated December 27, 2023

Lab Last Tested February 21, 2022

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