r4rohan / memorystore-nodejs-on-gke

memorystore with nodejs on gke

Memorystore-Nodejs-on-GKE

Google Memorystore with Nodejs on Google Kubernetes Engine This repo is for the medium blogs on Google Memorystore with Nodejs on Google Kubernetes Engine. Read it here: https://medium.com/faun/google-cloud-memorystore-with-node-js-on-google-kubernetes-engine-c9aa13721268

create gke cluster

gcloud container clusters create cloud-orbit-gke
--num-nodes 3
--zone us-central1-c
--machine-type n1-standard-2
--scopes "https://www.googleapis.com/auth/source.read_write,cloud-platform"

connect gke

gcloud container clusters get-credentials cloud-orbit-gke --zone us-central1-c --project cloudorbit

create a memorystore instance

gcloud redis instances create INSTANCE_ID --size=1 --region=us-central1 --project=SERVICE_PROJECT_ID
--network=projects/cloudorbit/global/networks/default
--connect-mode=private-service-access

gcloud redis instances describe INSTANCE_ID --region=us-central1

build and tag docker image

docker build -t gcr.io/{PROJECT_ID}/cloud-orbit-memorystore:1 -f Dockerfile .

push to gcr.io

docker push gcr.io/{PROJECT_ID}/cloud-orbit-memorystore:1

create namespace

kubectl create ns redis

create configmap

export REDISHOST_IP=[host-ip-of-instance] kubectl -n redis create configmap ms-cm --from-literal=REDISHOST=${REDISHOST_IP} kubectl -n redis get configmaps -o yaml

create pod deployment

kubectl -n redis apply -f gke-k8s-deployment/cloud-orbit-memorystore.yaml

kubectl -n redis get pods

kubectl -n redis get svc
hit the loadbalancerIP from service
curl http://[External-loadbalancer-ip]

to get pod description

kubectl -n redis describe pods [pod_name]

to get logs of pod

kubectl -n redis logs [pod_name]

other way to check memorystore is working or not

if the user is new then it will show true else false
for user 1:
http://[External-loadbalancer-ip]/api/user/1

Output
{"value":80,"isNew":true}

if the number is not new it will give false
for user 1:
http://[External-loadbalancer-ip]/api/user/1

Output
{"value":80,"isNew":false}

Pokemon API for testing

Inspect element, hit below url and check message and time first time, for the first time the message would be API.
http://[External-loadbalancer-ip]/type/1/

again hit and check message and time second time, for the second time the message would be REDIS and finish time is much lesser than earlier one.