Deploy Sidecars

Duration: 5 min | Persona: Apps Operator

In this section, you will deploy fine granular Sidecars in order to optimize the resources (CPU/Memory) usage of the Online Boutique apps’s sidecar proxies. By default, each application in the Online Boutique namespace can reach to all the endpoints in the mesh. The Sidecar resource allows to reduce that list to the strict minimum of which endpoints it needs to communicate with.

Initialize variables:

WORK_DIR=~/
source ${WORK_DIR}acm-workshop-variables.sh

Update `RepoSync` to deploy the Online Boutique’s Helm chart

Define the RepoSync to deploy the Online Boutique’s Helm chart with the Sidecars:

cat <<EOF > ${WORK_DIR}$GKE_CONFIGS_DIR_NAME/repo-syncs/$ONLINEBOUTIQUE_NAMESPACE/repo-sync.yaml
apiVersion: configsync.gke.io/v1beta1
kind: RepoSync
metadata:
  name: repo-sync
  namespace: ${ONLINEBOUTIQUE_NAMESPACE}
spec:
  sourceFormat: unstructured
  sourceType: helm
  helm:
    repo: oci://${CHART_REGISTRY_REPOSITORY}
    chart: ${ONLINEBOUTIQUE_NAMESPACE}
    version: ${ONLINE_BOUTIQUE_VERSION:1}
    releaseName: ${ONLINEBOUTIQUE_NAMESPACE}
    auth: gcpserviceaccount
    gcpServiceAccountEmail: ${HELM_CHARTS_READER_GSA}@${TENANT_PROJECT_ID}.iam.gserviceaccount.com
    values:
      cartDatabase:
        inClusterRedis:
          publicRepository: false
      images:
        repository: ${PRIVATE_ONLINE_BOUTIQUE_REGISTRY}
        tag: ${ONLINE_BOUTIQUE_VERSION}
      nativeGrpcHealthCheck: true
      seccompProfile:
        enable: true
      loadGenerator:
        checkFrontendInitContainer: false
      frontend:
        externalService: false
        virtualService:
          create: true
          gateway:
            name: ${INGRESS_GATEWAY_NAME}
            namespace: ${INGRESS_GATEWAY_NAMESPACE}
            labelKey: asm
            labelValue: ingressgateway
          hosts:
          - ${ONLINE_BOUTIQUE_INGRESS_GATEWAY_HOST_NAME}
      serviceAccounts:
        create: true
      authorizationPolicies:
        create: true
      networkPolicies:
        create: true
      sidecars:
        create: true
EOF

Info

In order to deploy the fine granular Sidecars, one per app, we just updated the list of values of the Online Boutique’s Helm chart previously configured, with sidecars.create: true.

Deploy Kubernetes manifests

cd ${WORK_DIR}$GKE_CONFIGS_DIR_NAME/
git add . && git commit -m "Online Boutique Sidecars" && git push origin main

Check deployments

List the Kubernetes resources managed by Config Sync in GKE cluster for the Online Boutique apps repository:

Run this command and click on this link:

echo -e "https://console.cloud.google.com/kubernetes/config_management/packages?project=${TENANT_PROJECT_ID}"

Wait until you see the Sync status column as Synced and the Reconcile status column as Current.

Run this command:

gcloud alpha anthos config sync repo describe \
    --project $TENANT_PROJECT_ID \
    --managed-resources all \
    --sync-name repo-sync \
    --sync-namespace $ONLINEBOUTIQUE_NAMESPACE

Wait and re-run this command above until you see "status": "SYNCED".

List the GitHub runs for the GKE cluster configs repository:

cd ${WORK_DIR}$GKE_CONFIGS_DIR_NAME && gh run list

Check the Online Boutique website

Navigate to the Online Boutique website, click on the link displayed by the command below:

echo -e "https://${ONLINE_BOUTIQUE_INGRESS_GATEWAY_HOST_NAME}"

You should still have the Online Boutique website working successfully.