ci-cd-gcp-terraform-example's Introduction

CI-CD-GCP-terraform-example

An example/practice repository for setting up a CI/CD pipeline. Set up on GCP with Terraform.

Based on chapter 7 of 'Terraform in Action', but with some changes of my own.

The pipeline:

Code is pushed to Cloud Source Repositories
This triggers a Cloud Build build, with the template based on the buildtemplate.yaml file
The Cloud Build:
- Tests the code with pytest
- Builds the Docker app in the app folder
- Pushes the image to the Container Registry
- Deploys the image to Cloud Run

Terraform steps

Create a GCP project
Create a service account with the Project/Editor, Project IAM Admin, Security Admin, and Source Repository Administrator roles.
Create and download a key for the service account
Create a terraform.tfvars file in the terraform folder that contains the project variable with your project ID and the credentials variable with the location of your credentials file.
Enable the following APIs for your project:
Run terraform init
Run terraform apply
Type yes and hit enter.
You can run terraform destroy to destroy the provisioned resources.

Terraform will output 2 urls. One is the url of your app, the other is the url of the Cloud Source Repository. You can set this as a remote for the git repository you have with git remote add google <url> and then push to that remote with git push --all google

Run build from GitHub repository

You can set a Cloud Source Repository to mirror a GitHub repository, but you can't (yet) do this with Terraform, so if you want to do this you will have to do it manually.

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