Load Balncer and Auto scalling

Now time to create Roles

IAM ---- Roles--- create a role should be use by EC2 --- PERMISION ----s3 full access---->Name:vprofile-artifact-storage-role--->create role.

Go ec2 instance ----->action----->settings ------> modify IAM roles -------> select our role-----> save this 

Now our application server app01 is authentication to access s3 bucket and ready to use that roles.

Time to use app01.

Now we gonna add ssh to Ec2 instance on app01------>Go to backend security group 

inbound ----> edit

Inbound rules:

Type: ssh----------->port:22-------->Source:myIP Choose its own IP address.------>save .

Copy public ip for app01

we download the pem key and find where its located 

Go to git bash ----->Try the below comments 

ssh -i <where you download the key> <keyname>centos@<public ip>

ssh -i desktop/vprofile-prod-key.pem centos@ipaddress.

log in---------->Then change into root ------>if you want to see user data from gitbash then try curl command 

curl http://169.254.169.254/latest/user-data

Check our system is up and running.------->Systemctl status tomcat8

Tomcat 8 is running

Lets go to var/lib/tomcat8 ------> here we can see webapp directory-----> we will delete ROOT directory which will have default application.

before start this we need to stop Tomcat8    rm -rf ROOT 

Download Artifact from s3 bucket for that we need top install aws cli here 

apt install awscli -y---->we gonnan use ----------->aws s3 ls s3://vprofile-artifact-storage

aws s3 cp s3://vprofile-artifact-storage/vprofile-v2.war/tmp/vprofile-v2.war

cd /tmp/----------->cp vprofile-v2.war /var/lib/tomcat8/webapps/ROOT.var------>start tomcat 8 ------->systemctl start tomcat8---------->

ls var/lib/tomcat8/webapps/------>cd var/lib/tomcat8/webapps/ROOT--------->ls--------->cd WEB-INF---------->ls------->cd classes----->ls ------------>where we have application property 

Now let check our servers are connected by using telnet db01.vprofile.in 3306

LOAD BALANCER AND DNS

All our server is working fine now we need to install  Load balancer and need to create Target group 

Load balance 

First create target group --- >instances---->Name: vpofile-app-TG---->protocol --->HTTP------>port:8080 ------------>same VPC-------> Health check:/login  -------->For health check over write the port 8080 available instance server tomcat.--------->create target group

Go to load balancer 

application load balancer 

crete http amd https---->Name: vprofile-prod-elb----->internet facing------>ptotocol HTTP 80---------->protocolo:HTTPS 443------>Select all  the zone ----->click next ---------->certificate for HTTPS(we already got the certificate from DNS select that certificate)-------->Security group Load Balancer Vprofile-ELB-SG

ROUTE THE REQUEST FROM TARGET GROUP 

Name: vprofile-app-TG--->protocol: HTTP---->PORT :8080------>Health check---------->PROTOCOL:HTTPS-------->PATH:/login

--------->Click register target  will take end point to the load balancer 

 Go to our domain provider 

 Click add DNS Record typr--> CNAME host---> vprofileapp point to --->paste the endpoin of the load balncer.----->save this. 

 Go to web browser 

 https://vprofileapp.myprojectinc.com ------------------->you will be directed to login page. 

Auto scaling 

EC2 -->Action-->Image---->Create Image

Create Image

Image Name: vprofile app ----->Describtion: crete image ---------->click create image.

Launch configuration

Left side you have create launch configuration.---------->create launch configuration----> name: vprofile-app-LC

Select IAM---> Select from the Link------> T2.micreo

Role: we already created iam roles choose that. -------------> security:  vprofile-app security group --------------->create launch configuration.

Auto scaling group

crete autoscaling--- name:vprofile-app-ASG ------------>Select launch configration--------> Same Vpc------>Select all zone--------> Enable load balancer select our target group and check health check on the load balancer-----> We can decide the capacity ------> Scaling policy----> Tracking scaling policy----> Target value for Cpu 50%---->Next---> add notification-----> next----> Tags name: vprofile-app ---------->Create auto scaling group.

OUR AWS CLOUD COMPUTING PROJECT IS SUCCESSFULLY DONE! AND ITS UP AND RUNNING .