https://github.com/karambir/devops-kata

Some exercises and examples in devops
https://github.com/karambir/devops-kata

ami ansible aws cd ci devops load-balancer packer terraform

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Some exercises and examples in devops

• Host: GitHub
• URL: https://github.com/karambir/devops-kata
• Owner: karambir
• Created: 2018-07-24T22:45:05.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2018-10-17T15:07:01.000Z (over 6 years ago)
• Last Synced: 2025-01-29T19:47:17.264Z (9 days ago)
• Topics: ami, ansible, aws, cd, ci, devops, load-balancer, packer, terraform
• Language: HCL
• Size: 50.8 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Devops katas

[![Build Status](https://travis-ci.org/karambir/devops-kata.svg?branch=master)](https://travis-ci.org/karambir/devops-kata)

Basic infra setup and provisioning using ansible, packer and terraform.

## For now, we do:

- Ansible

  1. Create a remote `ubuntu` user and group.

    a. This user has sudo access

    b. The current user's ssh key(typically `~/.ssh/id_rsa`) is copied to remote user.

  2. Add some helpful dotfiles.

  3. A basic nginx installation. Use `--skip-tags web` to not install it.

- Packer

  1. Make an AMI using above ansible playbook

  2. Print ami_id in `packer_manifest.json` and `terraform/packer.auto.tfvars`

- Terraform

  1. Pick `ami_id` from `terraform/packer.auto.tfvars`

  2. Create a VPC, Internet Gateway, Route and Subnet

  3. Create ELB, Auto-scaling groups and Launch configuration using above ami.

  4. Add separate security groups for ELB and our web server and print elb address to visit at the end.

## To start just with ansible

Change hosts in `hosts` file and run:

    ansible-playbook -i hosts site.yml

## To test out packer and terraform

- Configure AWS cli so that `~/.aws/credentials` has aws keys or use env vars.

- Build AMI `packer build packer.json`

- Verify an AMI is created `cat terraform/packer.auto.tfvars`

- Provision infrastructure using terraform `terraform plan` and `terraform apply`

- Run `terrafomr destroy` to delete everything unless you to keep all of that infra running

## Help and Documentation

- [Ansible docs](https://docs.ansible.com/)

- [Packer docs](https://www.packer.io/docs/index.html)

- [Terraform docs](https://www.terraform.io/docs/index.html)

- Started terraform templates with this [official example](https://github.com/terraform-providers/terraform-provider-aws/tree/master/examples/two-tier)

- Took configuration around Auto-scaling groups from [here](https://medium.com/@I_M_Harsh/build-and-deploy-using-jenkins-packer-and-terraform-40b2aafedaec)

----

Happy Devops