68 lines
2.6 KiB
Markdown
68 lines
2.6 KiB
Markdown
# Integrate Online Boutique with Memorystore (Redis)
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By default the `cartservice` app is serializing the data in an in-cluster Redis database. Using a database outside your GKE cluster could bring more resiliency and more security with a managed service like Google Cloud Memorystore (Redis).
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## Provision a Memorystore (Redis) instance
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Important notes:
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- You can connect to a Memorystore (Redis) instance from GKE clusters that are in the same region and use the same network as your instance.
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- You cannot connect to a Memorystore (Redis) instance from a GKE cluster without VPC-native/IP aliasing enabled.
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To provision a Memorystore (Redis) instance you can follow the following instructions:
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```bash
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ZONE="<your-GCP-zone>"
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REGION="<your-GCP-region>"
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gcloud services enable redis.googleapis.com
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gcloud redis instances create redis-cart \
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--size=1 \
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--region=${REGION} \
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--zone=${ZONE} \
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--redis-version=redis_7_0
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```
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_Note: You can also find in this repository the Terraform script to provision the Memorystore (Redis) instance alongside the GKE cluster, more information [here](/terraform)._
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## Deploy Online Boutique connected to a Memorystore (Redis) instance
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To automate the deployment of Online Boutique integrated with Memorystore (Redis) you can leverage the following variation with [Kustomize](../..).
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From the `kustomize/` folder at the root level of this repository, execute this command:
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```bash
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kustomize edit add component components/memorystore
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```
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_Note: this Kustomize component will also remove the `redis-cart` `Deployment` and `Service` not used anymore._
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This will update the `kustomize/kustomization.yaml` file which could be similar to:
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```yaml
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apiVersion: kustomize.config.k8s.io/v1beta1
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kind: Kustomization
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resources:
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- base
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components:
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- components/memorystore
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```
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Update current Kustomize manifest to target this Memorystore (Redis) instance.
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```bash
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REDIS_IP=$(gcloud redis instances describe redis-cart --region=${REGION} --format='get(host)')
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REDIS_PORT=$(gcloud redis instances describe redis-cart --region=${REGION} --format='get(port)')
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sed -i "s/REDIS_CONNECTION_STRING/${REDIS_IP}:${REDIS_PORT}/g" components/memorystore/kustomization.yaml
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```
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You can locally render these manifests by running `kubectl kustomize .` as well as deploying them by running `kubectl apply -k .`.
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## Resources
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- [Connecting to a Redis instance from a Google Kubernetes Engine cluster](https://cloud.google.com/memorystore/docs/redis/connect-redis-instance-gke)
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- [Seamlessly encrypt traffic from any apps in your Mesh to Memorystore (Redis)](https://medium.com/google-cloud/64b71969318d)
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