Solution

Assignment -I

One time setup automation

Requirements

• ansible version > 2.9
• Route53 entry vinga.tk
• Kubernets 3 node cluster.(Tested on AWS KOPS version

steps:

git clone https://github.com/vinga2805/tekion.git

ansible-playbook fullstack.yml

Whats included ?

• 3 nodes Elasticsearch cluster for for storing application logs
• Kibana Dashboard for logs visulatization.
  • Index pattern app-logs*
• Prometheus for metrics and Alerting
• Grafana Dashboard for Application and Infrastructure monitoring with inbuilt 2 Dashboards.
  • jmx-prometheus-exporter (Application with jmx monitoring)
  • mysqld-prometheus (Mysql Monitoring)
• MysqlDB for storing the user and audit data.
• Tekion application for creating DynamoDB via UI and template.

Output

• Once the playbook run successfully below urls will be automatically configured in r53 with nginx ingress.
• http://prometheus.vinga.tk
• http://grafana.vinga.tk
• http://kibana.vinga.tk
• http://tekion.vinga.tk/teslaDyDB

Continous Integration and Deployment

Requirements

• Jenkins server with below plugins installed
  • Docker pipeline
  • Github Authentication
  • pipeline
• Maven with version 3.6.0
• Java openjdk 1.8.0_252

Steps:

• Create a Jenkins pipeline Job and with below Jenkinsfile in "pipeline script from SCM"
  • app/Jenkinsfile

Whats included ?

• Dockerfile for application.
• Dockerfile for fluentbit which will be running as a sidecar.
• Jenkinsfile to perform CI and CD
• update_image.py for updating the image in helm chart.

What does it do?

• Clone the repo
• Build the jar file with maven
• Build the Docker image and names it accoring to the environment.
  • SNAPSHOT --> ${pomVersion}-snapshot.${gitBranch}.${shortCommit}
  • release --> ${pomVersion}
• Push the built image with dockerhub with my credentials.
• Remove the image from Jenkins box
• Clone the same repo in subdirectory values-files
• Update the tag in the values.yaml
• Bump up the chart version
• Deploys the application via Helm if its first time otherwise it upgrades the helm chart
• Perform healthcheck of the application
• If the Healthcheck passes then it will push the changes in github
• If the Healthcheck fails it performs rollback via helm.
• Use sample dynamoDB template to test the application

Assignment -II

Requirements

• ansible version > 2.9
• Route53 entry vinga.tk
• Terraform version 0.12

steps:

git clone https://github.com/vinga2805/tekion.git cd mongodb-terraform-ansible-automation/terraform

• Enter the in variables.tf
  • quora count
  • instance type

terraform init

terraform apply

cd ../ansible/

vi hosts.yml

• make changes in hosts.yml as per infrastrure
  • cluser_size: 3/5
  • delay: (for delay replication)
  • MongoDB version

openssl rand -base64 756 > roles/security/files/mongo-keyfile

ansible-playbook playbook-full-configuration.yml

Whats included ?

• Create number of mongoDB servers based on qoura count (number = quora + 2)
• Ansible will provison
  • MongoDB replication based on cluser_size, default(5) nodes (1-master, 2-slaves, 1-arbiter, 1-Delayed nodes)
  • TLS certifcate
  • Install and start monitoring server (pmm)
  • Monitoring url
  • http://mongo-arbiter.vinga.tk:8080/

Verify

mongo "mongodb://mongo-master.vinga.tk:27017,mongo-slave1.vinga.tk:27017,mongo-slave2.vinga.tk:27017/main?replicaSet=rs0" --ssl --username main-user --password