AmrTarek17 / GCP-Terraform

Google Cloud Project

Project Info.

This project contains:

• Infrastructure as code using Terraform that builds an environment on the google cloud platform
• Demo app with Dockerfile
• Kubernetes YAML files for deploying the demo app

Tools Used

• Terraform
• GCP
• Docker
• kubernetes
• python

Get Started

Get The Code

• Using Git, clone the project.

  git clone https://github.com/AmrTarek17/GCP-Terraform.git
  

Setup Infra

• First setup your GCP account, create new project and change the value of "project_name" variable in terraform.tfvars with your PROJECT-ID.

• Second build the infrastructure by run

  cd GCP-Terraform/

  terraform init
  terraform apply
  

  that will build:

  • VPC named "vpc-network"

  • 2 Subnets "management-sub", "restricted-sub"

  • 3 Service Accounts

    • "gke-sa" used by Kubernetes cluster
    • "gke-management-sa" used by Management VM
    • "docker-gcr-sa" we will use it to push the image to GCR

  • NAT in "management-sub"

  • Private Virtual Machine in "management-sub" subnet to manage the cluster.

  • Private Kubernetes cluster in "restricted-sub" with 3 worker nodes.

    # NOTE
    Only VMs in "management-sub" subnet can access the Kubernetes cluster.

  you can change some variables values in "terraform.tfvars"

Build & Push Docker Image to GCR

• Build the Docker Image by run

  docker build -t eu.gcr.io/<PROJECT-ID>/my-app:1.0 src/

• pull Redis image and tag it

  docker pull redis:5.0
  docker tag redis:5.0 eu.gcr.io/<PROJECT-ID>/redis:5.0

• Setup credentials for docker to Push to GCR using "docker-gcr-sa" Service Account

  gcloud auth activate-service-account docker-gcr-sa --key-file=KEY-FILE
  gcloud auth configure-docker
  

• Push the Images to GCR

  docker push eu.gcr.io/<PROJECT-ID>/my-app:1.0
  docker push eu.gcr.io/<PROJECT-ID>/redis:5.0
  

Deploy

• After the infrastructure got built, now you can login to the "management-vm" VM using SSH then:

  • setup cluster credentials

    gcloud container clusters get-credentials app-cluster --zone europe-west1-c --project <PROJECT-ID>
    

  • Change image in "k8s-yaml-files/deployments/app-deployment.yaml" with your image

  • Change image in "k8s-yaml-files/deployments/redis-pod.yaml" with your image

  • Upload the "k8s-yaml-files" dir to the VM and run

    kubectl apply -f k8s-yaml-files/
    

    that will deploy:

    • Config Map for environment variables used by demo app
    • Redis Pod and Exopse the pod with ClusterIP service
    • Demo App Deployment and Exopse it with NodePort service
    • Ingress to create HTTP loadbalancer

---

Now, you can access the Demo App by hitting the Ingress IP

You can try my deployed demo from here And you can brows my Demo ScreenShots folder from GCP-Terraform/ScreenShots