Microservice Online Shopping

Built using express js, message broker using rabbitmq and containerized by docker. Now in progess to implement with service mesh paradigm in kubernetes cluster.

Architecture

Clone Repository

git clone https://github.com/launathiel/microservice-online-shopping

cd microservice-online-shopping

---

Run on Docker Using Docker Compose

Run RabbitMQ

docker-compose -f ./rabbitmq-docker.yml up -d

note that rabbitmq succesfully running, to avoid service error because rabbitmq, after 1 minute run command below;

Run Service with DB

docker-compose -f ./service-with-db-docker.yml up -d

---

Run on Kubernetes Cluster ( with Istio & RabbitMQ )

Setup Istio

Download istio

curl -L https://istio.io/downloadIstio | sh -

Make file executable

chmod +x ./kubernetes/istio/istio-init.sh

execute sh file

./kubernetes/istio/istio-init.sh

check if istio successfully deployed

kubectl get all -n istio-system

---

Setup Rabbitmq Cluster

Make file executable

chmod +x ./kubernetes/rabbitmq/rabbitmq.sh

execute sh file

./kubernetes/rabbitmq/rabbitmq.sh

Check all rabbitmq component

kubectl get all -o wide -n rabbitmq-system
kubectl get all -o wide -n rabbitmq

---

Run Customer Service

Make file executable

chmod +x ./kubernetes/customer/mongodb.sh
chmod +x ./kubernetes/customer/customer.sh

Deploy customer database

./kubernetes/customer/mongodb.sh 

MongoDB init ( First Time Only )

kubectl exec -ti -n customer mongod-customer-0 bash

# initiate replicaset
mongo --quiet <<EOF
rs.initiate({ 
    _id : "MainRepSet", 
    version : 1, 
    members: [
        { _id: 0, host: "mongod-customer-0.mongodb-service.customer.svc.cluster.local:27017" }, 
        { _id: 1, host: "mongod-customer-1.mongodb-service.customer.svc.cluster.local:27017" }
    ]
});
EOF
# you can specify member of replicaset depend on your mongoDB sts' replica

# check 
mongo --eval 'rs.status();'

# create user admin
mongo --quiet <<EOF
db.getSiblingDB("admin").createUser({
    user : "customerdb",
    pwd  : "thisisasecret",
    roles: [ { role: "root", db: "admin" } ]
});
EOF

exit

Deploy customer service

./kubernetes/customer/customer.sh 

---

Run Products Service

Make file executable

chmod +x ./kubernetes/products/mongodb.sh
chmod +x ./kubernetes/products/products.sh

Deploy products database

./kubernetes/products/mongodb.sh 

MongoDB init ( First Time Only )

kubectl exec -ti -n products mongod-products-0 bash

# initiate replicaset
mongo --quiet <<EOF
rs.initiate({ 
    _id : "MainRepSet", 
    version : 1, 
    members: [
        { _id: 0, host: "mongod-products-0.mongodb-service.products.svc.cluster.local:27017" }, 
        { _id: 1, host: "mongod-products-1.mongodb-service.products.svc.cluster.local:27017" }
    ]
});
EOF
# you can specify member of replicaset depend on your mongoDB sts' replica

# check 
mongo --eval 'rs.status();'

# create user admin
mongo --quiet <<EOF
db.getSiblingDB("admin").createUser({
    user : "productsdb",
    pwd  : "thisisasecret",
    roles: [ { role: "root", db: "admin" } ]
});
EOF

exit

Deploy products service

./kubernetes/products/products.sh 

---

Run Shopping Service

Make file executable

chmod +x ./kubernetes/shopping/mongodb.sh
chmod +x ./kubernetes/shopping/shopping.sh

Deploy shopping database

./kubernetes/shopping/mongodb.sh 

MongoDB init ( First Time Only )

kubectl exec -ti -n shopping mongod-shopping-0 bash

# initiate replicaset
mongo --quiet <<EOF
rs.initiate({ 
    _id : "MainRepSet", 
    version : 1, 
    members: [
        { _id: 0, host: "mongod-shopping-0.mongodb-service.shopping.svc.cluster.local:27017" }, 
        { _id: 1, host: "mongod-shopping-1.mongodb-service.shopping.svc.cluster.local:27017" }
    ]
});
EOF
# you can specify member of replicaset depend on your mongoDB sts' replica

# check 
mongo --eval 'rs.status();'

# create user admin
mongo --quiet <<EOF
db.getSiblingDB("admin").createUser({
    user : "shoppingdb",
    pwd  : "thisisasecret",
    roles: [ { role: "root", db: "admin" } ]
});
EOF

exit

Deploy shopping service

./kubernetes/shopping/shopping.sh 

Service Mesh Monitoring

Prometheus

kubectl apply -n istio-system -f https://raw.githubusercontent.com/launathiel/microservice-online-shopping/main/kubernetes/istio/prometheus.yaml

Grafana

kubectl apply -n istio-system -f https://raw.githubusercontent.com/launathiel/microservice-online-shopping/main/kubernetes/istio/grafana.yaml

Kiali

kubectl apply -f https://raw.githubusercontent.com/launathiel/microservice-online-shopping/main/kubernetes/istio/kiali-crd.yaml
kubectl apply -n istio-system -f https://raw.githubusercontent.com/launathiel/microservice-online-shopping/main/kubernetes/istio/kiali.yaml

keep exploring!