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cloud run sandbox

CRFA Overview

Cloud Run for Anthos let's you leverage serverless containers on top of Kubernetes. CRFA provides you a Google-managed and supported Knative developer platform.

Benefits Knative vs Kubernetes:

  • Simplify development complexity
  • Operational flexibility of Kubernetes
  • Serverless anywhere (scale to 0)

Generations of Cloud Run for Anthos (CRFA):

  • CRFA v1 - First generation of Cloud Run for Anthos that was running Knative with Slim version of Istio is currently deprecated.
  • CRFA v2 - Second generation of Cloud Run for Anthos running latest OSS Knative with GCP integrations and provides following benefits:
    • Anthos fleets enable you to manage and upgrade your Cloud Run for Anthos installation independently of the other Anthos components.
    • Use of decoupled version of Anthos Service Mesh (ASM).
    • Cloud Run for Anthos installation is always up-to-date as it run via managed appdevexperience-operator that runs in your cluster automatically rolls out the latest version of Cloud Run for Anthos.

See Reference 1 for other improvements.

CRFA Installation Overview

Cloud Run for Anthos require following steps:

  • Setup GKE Cluster
  • Register GKE Cluster to Anthos Hub
  • Enable Anthos Service Mesh (ASM) with In-cluster control plane
  • Enable CRFA

Deploy GKE Cluster

Step 1: Create a cluster with the bellow command

Make sure to replace with your student LDAP and email

export EMAIL_ADDRESS=<email>
export STUDENT_LDAP=<STUDENT_LDAP>
export PROJECT_ID=<gcloud config get-value project>

export CLUSTER_NAME=$STUDENT_LDAP-cluster
export CLUSTER_LOCATION=us-central1-b
export HUB_PROJECT_ID=$PROJECT_ID
export MEMBERSHIP_NAME=gcp-$CLUSTER_NAME
gcloud config set project ${PROJECT_ID}
gcloud config set compute/zone ${CLUSTER_LOCATION}

First, make sure the proper APIs are enabled. Run the following command to enable the Container Registry API:

gcloud services enable container.googleapis.com \
                       anthos.googleapis.com \
                       containerregistry.googleapis.com \
                       artifactregistry.googleapis.com \
                       cloudbuild.googleapis.com \
                       gkeconnect.googleapis.com \
                       gkehub.googleapis.com \
                       cloudresourcemanager.googleapis.com \
                       iam.googleapis.com

Now you are ready to create a cluster!

gcloud container clusters create $CLUSTER_NAME  \
    --zone us-central1-b \
    --machine-type e2-standard-4 \
    --release-channel regular \
    --num-nodes 4 \
    --workload-pool=$PROJECT_ID.svc.id.goog \
    --addons=HttpLoadBalancing,NetworkPolicy \
    --monitoring=SYSTEM \
    --logging=SYSTEM,WORKLOAD \
    --enable-network-policy \
    --enable-ip-alias

!!! note GKE cluster has been deployed according to requirements for use with:

* [Anthos Service Mesh (ASM)](https://cloud.google.com/service-mesh/docs/scripted-install/gke-asm-onboard-1-7#requirements) 
* [CloudRun for Anthos (CRFA) ](https://cloud.google.com/run/docs/gke/setup#prerequisites)

Register GKE Cluster to Anthos Hub¶

This module provides steps of how to register your Kubernetes clusters to a Google Cloud fleet.

Step 1: Registering a cluster using Workload Identity

gcloud container hub memberships register $MEMBERSHIP_NAME \
   --gke-cluster=$CLUSTER_LOCATION/$CLUSTER_NAME \
   --enable-workload-identity

Step 2: Inspect a cluster's registration status with gcloud

gcloud container hub memberships list

(Output)

NAME                EXTERNAL_ID
gcp-$CLUSTER_NAME  1f9d5805-a7d9-46a3-a5a4-526e137b9cff

Deploy ASM with In-cluster control plane

Note: The Google-managed control plane is currently not fully supported by Cloud Run for Anthos.

Install ASM core compoments

Step 1: Update the gcloud components and Authenticate with the Cloud SDK:

gcloud components update
gcloud auth login

Step 2: Your project must have the Service Mesh Feature enabled:

gcloud beta container hub mesh enable

Step 3: Download the version of the script that installs Anthos Service Mesh 1.12 to the current working directory:

curl https://storage.googleapis.com/csm-artifacts/asm/asmcli_1.13 > asmcli
chmod +x asmcli

Step 4: Get cluster credentials:

gcloud container clusters get-credentials $CLUSTER_NAME \
    --zone $CLUSTER_LOCATION \
    --project $PROJECT_ID

Default ASM Deployment:

./asmcli install \
  --project_id $PROJECT_ID \
  --cluster_name $CLUSTER_NAME \
  --cluster_location $CLUSTER_LOCATION \
  --fleet_id $PROJECT_ID \
  --output_dir $CLUSTER_NAME \
  --enable_all \
  --ca mesh_ca

ASM Deployment Istio Container Network Interface (Istio-CNI)

./asmcli install \
  --project_id $PROJECT_ID \
  --cluster_name $CLUSTER_NAME \
  --cluster_location $CLUSTER_LOCATION \
  --fleet_id $PROJECT_ID \
  --output_dir $CLUSTER_NAME \
  --enable_all \
  --option cni-gcp \
  --ca mesh_ca

!!! note If using a single-project, the FLEET_PROJECT_ID is the same as PROJECT_ID, the fleet host project and the cluster project are the same. In more complex configurations like multi-project, we recommend using a separate fleet host project.

!!! note ASM configuraiton may take a while the script will do following steps: * Enable required APIs * Configure required IAM roles * Enabling Workload Identity (if has not been enabled prior) * Create namespace namespace/istio-system on you cluster * Installing ASM control plane (istiod, ingress gateway)

(Output)

asmcli: Successfully installed ASM.

Verify components installed in istio-system

kubectl get deploy -n istio-system

!!! result istiod and istio-ingressgateway deployed in istio-system if you have Non-Managed istio Nothing will be observed if you use Google Managed istio

Deploy a public Ingress Gateway

  1. Define required varaibles:
export GATEWAY_NAMESPACE=asm-ingress
export REVISION=$(kubectl get deploy -n istio-system \
    -l app=istiod \
    -o jsonpath={.items[*].metadata.labels.'istio\.io\/rev'}'{"\n"}')
  1. Create a namespace for the gateway
kubectl create namespace $GATEWAY_NAMESPACE
  1. Enable auto-injection on the gateway by applying a revision label on the gateway namespace
kubectl label namespace $GATEWAY_NAMESPACE istio-injection- istio.io/rev=$REVISION --overwrite
  1. If you installed Anthos Service Mesh using asmcli, change to the directory that you specified in --output_dir
cd $CLUSTER_NAME

kubectl apply -n $GATEWAY_NAMESPACE -f samples/gateways/istio-ingressgateway

kubectl get pod,service -n $GATEWAY_NAMESPACE

Customer Deploy Cloud Run for Anthos CRFA

Enable Cloud Run for Anthos in your Anthos fleet:

export PROJECT_ID=$(gcloud config get-value project)
gcloud container hub cloudrun enable --project=$PROJECT_ID

export INGRESSNAMESPACE=asm-ingress
export INGRESSNAME=istio-ingressgateway
export INGRESLABEL='app: istio-ingressgateway'

cat <<EOF > cloudrun.yaml
apiVersion: operator.run.cloud.google.com/v1alpha1
kind: CloudRun
metadata:
  name: cloud-run
spec:
  serving:
    ingressService:
      name: ${INGRESSNAME}
      namespace: ${INGRESSNAMESPACE}
      labels:
        ${INGRESLABEL}
EOF

gcloud container hub cloudrun apply \
    --gke-cluster $CLUSTER_LOCATION/$CLUSTER_NAME \
    --config=cloudrun.yaml

Deploy Cloud Run for Anthos CRFA

Enable Cloud Run for Anthos in your Anthos fleet:

export PROJECT_ID=$(gcloud config get-value project)
gcloud container hub cloudrun enable --project=$PROJECT_ID

gcloud container hub cloudrun apply --gke-cluster=$CLUSTER_LOCATION/$CLUSTER_NAME

Install online-store-on-cloud-run app

Let's install our microservices app with mTLS in permissive mode:

Step 1: Run Deploy script:

export ELBIP=<GW IP>

./deploy.sh

Step 2: Test the app:

http://frontend.cloud-run-sandbox.kuberun.$ELBIP6.nip.io/

Result: CRFA v2 works with PERMISSIVE mode in ASM!

Enable Istio mTLS feature for CRFA

Now let's test CRFA with mTLS in STRICT mode:

Step 1. Enable sidecar container on knative-serving system namespace.

export asmRevision=$(kubectl get deploy -n istio-system \
    -l app=istiod \
    -o jsonpath={.items[*].metadata.labels.'istio\.io\/rev'}'{"\n"}')

kubectl label namespace knative-serving istio-injection- istio.io/rev=$asmRevision --overwrite

Step 2. Set PeerAuthentication to PERMISSIVE on knative-serving system namespace by creating a YAML file using the following template:

cat <<EOF > knative-serving-permissive.yaml
apiVersion: "security.istio.io/v1beta1"
kind: "PeerAuthentication"
metadata:
  name: "default"
  namespace: "knative-serving"
spec:
  mtls:
    mode: PERMISSIVE
EOF

Step 3. Apply the YAML file by running the command:

kubectl apply -f knative-serving-permissive.yaml

Step 4. Restart Pods in "knative-serving" namespace with sidecar injected

Enable mTLS Strict on online-store-on-cloud-run app

Step 1. Set PeerAuthentication on cloud-run-sandbox namespace as STRICT:

kubectl apply -f authn.yaml

Step 2: Test the app:

http://frontend.cloud-run-sandbox.kuberun.$ELBIP6.nip.io/

Result: Nothing works

Cleanup

gcloud container hub memberships unregister $MEMBERSHIP_NAME \
   --gke-cluster=$CLUSTER_LOCATION/$CLUSTER_NAME

gcloud container clusters delete $CLUSTER_NAME

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