Project Infrastructure as a Code!

Project Idea

Idea is to deploy an infrastructure as a code, alongside with a configuration management tool (i.e. Ansible) which will perform installation and upgrades of the instances deployed on AWS with Terrarform.
Containerize a Flask application (ideally a blog with CRUD capability) published up onto dockerhub.
Launched instances will be a Kubernetes cluster, so we will create a deployment based on the image we upload to docker.
Afterwards, either use Ansible or Kubernetes (ideally kubernetes) to have continuos monitoring utilizing Prometheus and Grafana.
Doing so i could pick up Terrarform, Ansible, Flask, Kubernetes and Prometheus/Grafana.

To-do List

• Install terraform and document the step down
• Write a terraform script to deploy AWS instances
• Install and configure ansible to remotely managed the AWS instances
• Write a playbook to configure and install kubernetes cluster for both instancse (1x Master, 1x Worker)
• Containerize both flask application and PostgresSQl, either saved the image locally or publish to dockerhub - Writing a flask application with CRUD capability will require a database, planing to use PostgreSQL for this.
• Write a deployment, service for this application's image
• Write a playbook to deploy Prometheus and Grafana
• Write a playbook to configure node_exporters on the x2 aws instance
• Integrating CI/CD component with Jenkins once base structure is completed

Ad-hoc to-dos

• Automate the ansible's inventory file entry for master and worker ip addresses as everytime we redeploy ip addresses will change for our instances.
• Automate the steps whereby we have to go into the machines individually to edit /etc/hosts file. - Find ways to capture/save the output of terraform to a file, afterwards write either a script/playbook to copy and replace the file onto the AWS instances.
• Write a script to automate the application of calico CNI on k8s master.
• Compile everything into a single playbook/role/script to automate the deployment of infra (aws instances) and configuration of the instances.

Researching

Have to research more on this portion. Researching for a CI tool that could be used to build and test Python Flask Application.

Jenkins Reference:
Jenkins with Python Flask App Deployment

Testing tools:
Have to research more on this portion.

Learning points! (Will be updated along the way!)