1. Client installation

a. install gcloud

sudo apt-get update

sudo apt-get install apt-transport-https ca-certificates gnupg curl -y

curl https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo gpg --dearmor -o /usr/share/keyrings/cloud.google.gpg

echo "deb [signed-by=/usr/share/keyrings/cloud.google.gpg] https://packages.cloud.google.com/apt cloud-sdk main" | sudo tee -a /etc/apt/sources.list.d/google-cloud-sdk.list

sudo apt-get update && sudo apt-get install google-cloud-cli

sudo apt-get install google-cloud-cli-gke-gcloud-auth-plugin

gcloud init

gcloud auth login

# list compute engine

gcloud compute instances list

b. install kubectl

curl -O https://s3.us-west-2.amazonaws.com/amazon-eks/1.30.0/2024-05-12/bin/linux/amd64/kubectl

chmod +x ./kubectl

mkdir -p $HOME/bin && cp ./kubectl $HOME/bin/kubectl && export PATH=$HOME/bin:$PATH

echo 'export PATH=$HOME/bin:$PATH' >> ~/.bashrc

kubectl version

c. install docker

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/debian \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update

# Install docker engine 

sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin -y

sudo docker ps

2. K8s deploy

a. Prepair

• Pull docker images

sudo docker pull hoangbuii2711/natours-frontend
sudo docker pull hoangbuii2711/natours-backend

• Label the Nodes

kubectl label node <frontend-node-name> role=frontend
kubectl label node <backend-node-name> role=backend

• Create namespace

kubectl create namespace frontend
kubectl create namespace backend

b. Create resource

c. Apply Manifests

• Apply service and get ipaddress

kubectl apply -f frontend-service.yaml
kubectl apply -f backend-service.yaml

• Modify in envfile
• Create secret

kubectl create secret generic the-last-straw-frontend-env --from-env-file=frontend.env -n frontend
kubectl create secret generic the-last-straw-backend-env --from-env-file=backend.env -n backend

• Apply Deployment

  kubectl apply -f frontend-deployment.yaml
  kubectl apply -f backend-deployment.yaml

• Install metric Server

kubectl apply -f https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml

• Apply HPA

kubectl apply -f hpa.yaml

3. Gitlab Runner

a.Setup gitlab runner

• create VM
• Install gitlab runner

curl -L "https://packages.gitlab.com/install/repositories/runner/gitlab-runner/script.deb.sh" | sudo bash

sudo apt-get install gitlab-runner

• Setup user

sudo visudo

add gitlab-runner ALL=(ALL) NOPASSWD:ALL after root user

sudo su - gitlab-runner

b. Install requirement package

• Docker
• Google cloud
• Kubernetes
• NodeJS

curl -fsSL https://deb.nodesource.com/setup_20.x | sudo bash -
sudo apt-get install -y nodejs
node -v
npm -v

c. Run gitlab runner

• Follow gitlab runnner setup instruction
• Run gitlab runner

gitlab-runner run

4. Setup CI/CD

• Create staging namespace

kubectl create namespace frontend
kubectl create namespace backend

5. Connect kubectl to eks

aws eks update-kubeconfig --region ap-southeast-1 --name the-last-straw-cluster

psql "postgresql://postgres:postgres@terraform-20240720032754650300000001.cb6ge2e4gfe1.ap-southeast-1.rds.amazonaws.com:5432/postgres"

sudo dpkg -i ./containerd.io_1.7.19-1_amd64.deb
./docker-ce-cli_27.1.1-1ubuntu.22.04jammy_amd64.deb
./docker-ce_27.1.1-1ubuntu.22.04jammy_amd64.deb
./docker-buildx-plugin_0.16.1-1ubuntu.22.04jammy_amd64.deb
./docker-compose-plugin_2.29.1-1ubuntu.22.04jammy_amd64.deb