DevOps 360° CI / CD

DevOps 360° CI / CD is an introduction to CI/CD with Drone, Ansible and ReactJS. For more details about the project, please check: http://slides.com/floriandambrine/devops360

1. Stage 1 - Design a CI / CD / CDD Workflow

• Continuous Integration (CI):

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• Continuous Delivery (CD):

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• Continuous Deployment (CDD):

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2. Stage 2 - Setup the CI / CD Server

2.1. GitHub OAuth App setup

• Follow the Github documentation to setup an OAuth App

• You should endup with something like this:

2.2. Ansible setup

2.2.1. Drone

• Spin up the CI/CD stack using Ansible. Make sure your inventory file ansible/inventories/vms/hosts and your group_vars ansible/inventories/vms/group_vars/all/libvirt/vars.yml are configured properly.

• Run ansible-galaxy install -r requirements.yml in order to install role's dependencies from Ansible Galaxy

• Create a group_vars override in ansible/inventories/vms/group_vars/drone/drone/vars.yml to override multiple Drone settings:

☝️ Note that sensible data should be encrypted using ansible-vault. A good practice is to create a ansible/inventories/vms/group_vars/drone/drone/vault.yml file along side with your vars.yml files:

---
# vars.yml

drone_host: tp110.ccm.u13.org
drone_admins:
  - Lowess

# Secrets stored in vault.yml
drone_oauth_client: "{{ vault_drone_oauth_client }}"
drone_oauth_secret: "{{ vault_drone_oauth_secret }}"

---
# vault.yml

vault_drone_oauth_client: <GitHub OAuth Client>
vault_drone_oauth_secret: <GitHub OAuth Scret>

• Run the following ansible playbook to setup Drone (Note that if you used ansible-vault to encrypt secrets you will need to add --vault-password-file <path-to-vault-file> to your command):

cd ansible

# Setup the Drone CI CD server
ansible-playbook -i inventories/vms drone.yml

2.2.2. Webserver SPA

• Fork the DevOps-360-react app project

• Create a group_vars override in ansible/inventories/vms/group_vars/web/spa/vars.yml to point the automation to your own DevOps-360-react app fork

# Setup the Webserver running the SPA
ansible-playbook -i inventories/vms spa.yml

3. Stage 3 - Create the CI / CD pipeline for DevOps-360-react app withg Drone

3.1. Integrate the Webapp repository with Drone

• On the Drone server, activate the DevOps-360-react app repository so that Drone can track the git activity:

• Now click on to go to the project and then make sure the hooks in the settings are set as follows:

• Create a .drone.yml file under the root of the DevOps-360-react app with the following content:

pipeline:
  echo:
    image: node:alpine
    commands:
      - echo 'Run CI / CD Pipeline on Drone'

• Commit and push the file and see what happens on Drone.

3.2. Write the CI steps for the pipeline

Use the following docs and write the corresponding pipeline steps to integrate your application:

• DevOps-360-react app
• Drone Plugins
• Drone Slack Plugin

3.2. Write the CD steps for the pipeline

Use the following docs and write the corresponding pipeline steps to release your application:

• Drone Plugins
• Drone Github Release Plugin

3.3. Write the CDD steps for the pipeline

Use the following docs and write the corresponding pipeline steps to deploy your application:

• Drone Plugins
• Drone Git Plugin
• Drone Ansible Plugin

4. Stage 4 - Play and understand how CI / CD / CDD pipelines enhance a development process

Once you're done with the whole CI / CD / CDD, play with the Webapp and fake a real development process:

• Create a feature branch
• Iterate over the commits
• Merge into master
• Create a tag and push it to create a release