flask-gke

This is automated deployment of flask application on Google Kubernetes Engine. GKE cluster is created with Terraform along with Cloud Build Trigger. Cloud Build is used for CICD deployments.

Pre-reqs

1. GCP Project with billing enabled
2. GCP Cloud Source Repository for version control
3. Enable below APIs of from GCP console.
   • container.googleapis.com
   • cloudresourcemanager.googleapis.com
   • compute.googleapis.com
   • storage-component.googleapis.com
   • iam.googleapis.com
   • iamcredentials.googleapis.com
   • cloudbuild.googleapis.com
4. Terraform installed on the local machine
5. Cloud Build Setup
6. Service account with permissions to deploy GKE cluster, Create service account, add permissions to service account and create cloud build trigger.

There are 4 modules in terraform

1. Cloud Build
2. GKE
3. IAM - service account for GKE
4. VPC - This include VPC, Subnet and Firewall

Note : Terraform is configured with local backend. We can configure cloud storage as remote backend when working with team.

Steps for deployment

1. Clone the repository with git clone https://github.com/oneaniket/flask-gke.git
2. cd to flask-gke/terraform
3. Enter your prefered GCP region, GCP Project ID in which to deploy the infra and Cluster name of the GKE cluster.
4. Run terraform init
5. Run terraform plan
6. Run terrafom apply --auto-approve

Terraform variables

Name	Description	Default	Required
Region	Region for GKE Cluster	us-central1	Yes
Project	ID of the project where infra will be deployed	project_id	Yes
Cluster Name	Name of the GKE cluster	flask-app	Yes