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sa-custom-roles-gcp-terraform

This project shows a complete use case with the least privilege principle on Google Cloud using modular Terraform, Terragrunt and Cloud Build

sa_with_roles_infra_cloud_build.png

The article on this topic :

https://medium.com/google-cloud/create-service-accounts-with-custom-roles-using-modular-terraform-terragrunt-and-cloud-build-474371b25388

The video in English :

https://youtu.be/2WN5viZlPfc

The video in French :

https://youtu.be/r758g3nXHqI

Build from local machine

Set env vars in your Shell

export PROJECT_ID={{your_project_id}}
export LOCATION={{your_location}}
export TF_STATE_BUCKET={{your_tf_state_bucket}}
export TF_STATE_PREFIX={{your_tf_state_prefix}}
export GOOGLE_PROVIDER_VERSION="= 4.47.0"

Plan

gcloud builds submit \
    --project=$PROJECT_ID \
    --region=$LOCATION \
    --config terraform-plan-modules.yaml \
    --substitutions _ENV=dev,_TF_STATE_BUCKET=$TF_STATE_BUCKET,_TF_STATE_PREFIX=$TF_STATE_PREFIX,_GOOGLE_PROVIDER_VERSION=$GOOGLE_PROVIDER_VERSION \
    --verbosity="debug" .

Apply

gcloud builds submit \
    --project=$PROJECT_ID \
    --region=$LOCATION \
    --config terraform-apply-modules.yaml \
    --substitutions _ENV=dev,_TF_STATE_BUCKET=$TF_STATE_BUCKET,_TF_STATE_PREFIX=$TF_STATE_PREFIX,_GOOGLE_PROVIDER_VERSION=$GOOGLE_PROVIDER_VERSION \
    --verbosity="debug" .

Destroy

gcloud builds submit \
    --project=$PROJECT_ID \
    --region=$LOCATION \
    --config terraform-destroy-modules.yaml \
    --substitutions _ENV=dev,_TF_STATE_BUCKET=$TF_STATE_BUCKET,_TF_STATE_PREFIX=$TF_STATE_PREFIX,_GOOGLE_PROVIDER_VERSION=$GOOGLE_PROVIDER_VERSION \
    --verbosity="debug" .

Build from the project hosted in a GITHUB repository

Plan

gcloud beta builds triggers create manual \
  --project=$PROJECT_ID \
  --region=$LOCATION \
  --name="terraform-plan" \
  --repo="https://github.com/tosun-si/sa-custom-roles-gcp-terraform" \
  --repo-type="GITHUB" \
  --branch="main" \
  --build-config="terraform-plan-modules.yaml" \
  --substitutions _ENV=dev,_TF_STATE_BUCKET=$TF_STATE_BUCKET,_TF_STATE_PREFIX=$TF_STATE_PREFIX,_GOOGLE_PROVIDER_VERSION=$GOOGLE_PROVIDER_VERSION \
  --verbosity="debug"

Apply

gcloud beta builds triggers create manual \
  --project=$PROJECT_ID \
  --region=$LOCATION \
  --name="terraform-apply" \
  --repo="https://github.com/tosun-si/sa-custom-roles-gcp-terraform" \
  --repo-type="GITHUB" \
  --branch="main" \
  --build-config="terraform-apply-modules.yaml" \
  --substitutions _ENV=dev,_TF_STATE_BUCKET=$TF_STATE_BUCKET,_TF_STATE_PREFIX=$TF_STATE_PREFIX,_GOOGLE_PROVIDER_VERSION=$GOOGLE_PROVIDER_VERSION \
  --verbosity="debug"

Destroy

gcloud beta builds triggers create manual \
  --project=$PROJECT_ID \
  --region=$LOCATION \
  --name="terraform-destroy" \
  --repo="https://github.com/tosun-si/sa-custom-roles-gcp-terraform" \
  --repo-type="GITHUB" \
  --branch="main" \
  --build-config="terraform-destroy-modules.yaml" \
  --substitutions _ENV=dev,_TF_STATE_BUCKET=$TF_STATE_BUCKET,_TF_STATE_PREFIX=$TF_STATE_PREFIX,_GOOGLE_PROVIDER_VERSION=$GOOGLE_PROVIDER_VERSION \
  --verbosity="debug"