update README

Signed-off-by: Your Name <[email protected]>

README.md

@@ -1,5 +1,9 @@
 # Introduction
 
+This project runs a nodejs application and uses mongodb as database. It has an API performs the CRUD operations by interacting with database. The creates a product , updates a product, get a single and all products and deletes a product.
+
+Look at the [file](models/productModels.js) to know about schema of a product.
+
 # Local Setup
 
 Follow the following steps if you want to run this app on your local machine.
@@ -26,6 +30,7 @@ Now go to browser and type `localhost:3000` or `localhost:3000/blog`
 
 # Running the tests
 
+Follow the [README](tests/README.md) of tests if you want to know about tests. 
 Use `npm test` to run the test.
 
 
@@ -39,85 +44,19 @@ Like this
 
 # Docker 
 
-
+For docker follow this [README.md](docker/README.md).
 
 # Kubernetes 
 
+For kubernetes follow this [README.md](kubernetes/README.md).
 
 # Vagrant and Ansible 
 
-# Istio
-
-## Pre-requisites
-Make sure the cluster is running.
-Install istio using this [link](https://istio.io/latest/docs/setup/getting-started/#install).
-
-## Simple deployment
-
-```
-kubectl create ns node-mongo-istio
-kubectl label namespace node-mongo-istio istio-injection=enabled
-
-cd istio/simple
-
-kubectl apply -f mongo-deploy.yaml -n node-mongo-istio
-kubectl apply -f nodejsapp-deploy.yaml -n node-mongo-istio
-
-kubectl apply -f mongo-service.yaml -n node-mongo-istio
-kubectl apply -f node-service.yaml -n node-mongo-istio
-
- kubectl apply -f gateway-nodejs.yaml  -n node-mongo-istio
-```
-
-Verify that the service has been created using
-
-```
-azureuser@istio-practice:~$ kubectl -n istio-system get service istio-ingressgateway
-NAME                   TYPE           CLUSTER-IP     EXTERNAL-IP   PORT(S)
-                    AGE
-istio-ingressgateway   LoadBalancer   10.96.160.94   <pending>     15021:31031/TCP,80:32281/TCP,443:30942/TCP,31400:31668/TCP,15443:30901/TCP   43m
-```
+For vagrant and ansible follow this [README.md](iac/README.md).
 
-You can now request the following 
-
-```
- INGRESS_PORT=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.spec.ports[?(@.name=="http2")].nodePort}')
-```
-Get the IP using  `MINIKUBE_IP=$(minikube ip)`
-
-Now you can do curl requests. 
-```
-azureuser@istio-practice:~$ curl http://$MINIKUBE_IP:$INGRESS_PORT
-Hello NODE API
-```
-
-You can even use the API externally. 
-
-In separate terminal run the following 
-
-```
- kubectl -n istio-system port-forward service/istio-ingressgateway 8080:80
-```
-
-In another terminal use  `curl http://localhost:8080` . 
-
-## Canary Rollout
-
-```
-kubectl create ns node-mongo-istio
-kubectl label namespace node-mongo-istio istio-injection=enabled
-
-cd istio/request_routing
-
-kubectl apply -f mongo-deploy.yaml -n node-mongo-istio
-kubectl apply -f nodejs-dev-deploy.yaml -n node-mongo-istio
-kubectl apply -f nodejs-prod-deploy.yaml -n node-mongo-istio
-
-kubectl apply -f mongo-service.yaml -n node-mongo-istio
-kubectl apply -f nodejs-service.yaml -n node-mongo-istio
-
-kubectl apply -f destination-rule.yaml -n node-mongo-istio
-kubectl apply -f virtual-service.yaml  -n node-mongo-istio
-```
+# Istio
+For istio follow this [README.md](istio/README.md).
 
 
+# Monitoring
+For monitoring follow this [README.md](monitoring/README.md).

istio/README.md

@@ -0,0 +1,100 @@
+## Pre-requisites
+Make sure the cluster is running.
+
+If not start the cluster using 
+```
+ minikube start  --memory 12000  --cpus 2
+```
+
+Install istio using this [link](https://istio.io/latest/docs/setup/getting-started).
+
+We can use istio using two ways one is simple deployment and other is canary rollout.
+
+
+In simple we let every other request pass through istio and then through kubernetes.
+
+
+In canaray rollout we have two deployments one is production(prod) and other is development.
+We pass the 20 percent of the network traffic to development and 80 percent to prod. 
+Later we can increase the traffic steadily and fully route the traffic to prod.
+
+## Simple deployment
+
+Create namespaces.
+```
+kubectl create ns node-mongo-istio
+kubectl label namespace node-mongo-istio istio-injection=enabled
+```
+
+Now fo to simple directory `cd simple`
+
+Now type the following commands.
+
+```
+kubectl apply -f mongo-deploy.yaml -n node-mongo-istio
+kubectl apply -f nodejsapp-deploy.yaml -n node-mongo-istio
+
+kubectl apply -f mongo-service.yaml -n node-mongo-istio
+kubectl apply -f node-service.yaml -n node-mongo-istio
+
+ kubectl apply -f gateway-nodejs.yaml  -n node-mongo-istio
+```
+
+Verify that the service has been created using
+
+```
+azureuser@istio-practice:~$ kubectl -n istio-system get service istio-ingressgateway
+NAME                   TYPE           CLUSTER-IP     EXTERNAL-IP   PORT(S)
+                    AGE
+istio-ingressgateway   LoadBalancer   10.96.160.94   <pending>     15021:31031/TCP,80:32281/TCP,443:30942/TCP,31400:31668/TCP,15443:30901/TCP   43m
+```
+
+You can now request the following 
+
+```
+ INGRESS_PORT=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.spec.ports[?(@.name=="http2")].nodePort}')
+```
+Get the IP using  `MINIKUBE_IP=$(minikube ip)`
+
+Now you can do curl requests. 
+```
+azureuser@istio-practice:~$ curl http://$MINIKUBE_IP:$INGRESS_PORT
+Hello NODE API
+```
+
+You can even use the API externally. 
+
+In separate terminal run the following 
+
+```
+ kubectl -n istio-system port-forward service/istio-ingressgateway 8080:80
+```
+
+In another terminal use  `curl http://localhost:8080` . 
+
+
+## Canary Rollout
+
+Create namespaces.
+```
+kubectl create ns node-mongo-istio
+kubectl label namespace node-mongo-istio istio-injection=enabled
+```
+
+Now do  
+`cd request_routing`
+
+Now apply the following 
+```
+kubectl apply -f mongo-deploy.yaml -n node-mongo-istio
+kubectl apply -f nodejs-dev-deploy.yaml -n node-mongo-istio
+kubectl apply -f nodejs-prod-deploy.yaml -n node-mongo-istio
+
+kubectl apply -f mongo-service.yaml -n node-mongo-istio
+kubectl apply -f nodejs-service.yaml -n node-mongo-istio
+
+kubectl apply -f destination-rule.yaml -n node-mongo-istio
+kubectl apply -f virtual-service.yaml  -n node-mongo-istio
+```
+
+

monitoring/README.md

@@ -0,0 +1,25 @@
+# Monitoring using prometheus and grafana
+
+Make sure you have installed docker and docker compose follow the docker [README.md](../docker/README.md)
+
+Now do 
+`docker-compose up` 
+
+You can stats using
+`curl -sX GET http://localhost:3001` 
+
+or better open in browser like this. 
+
+Use `http://localhost:3001`.
+
+![alt text](images/grafana.png)
+
+Note if you are doing this in azure apply the following inbound rule like this. 
+![alt text](images/azure.png)
+
+Use the following config.
+
+![alt text](images/rule.png)
+
+
+

tests/README.md

@@ -0,0 +1 @@
+Here database connection test, server tests and scema check tests are there in dbclient.js , server.js and models.js respectively.