GCP Gke Cluster Setup

GKE Cluster Setup

Purpose

Create production-ready GKE clusters with proper architecture, networking, and security configurations. This skill guides you through cluster creation, mode selection (Autopilot vs Standard), networking setup, and initial resource configuration.

When to Use

Use this skill when you need to:

• Create a new GKE cluster for production or development
• Choose between Autopilot and Standard cluster modes
• Configure VPC-native networking and private clusters
• Set up node pools with autoscaling
• Enable security features (Workload Identity, private nodes)
• Plan cluster architecture for Spring Boot microservices

Trigger phrases: "create GKE cluster", "set up Kubernetes cluster", "Autopilot vs Standard", "configure GKE networking"

Table of Contents

• Purpose
• When to Use
• Quick Start
• Instructions
  • Step 1: Decide Between Autopilot and Standard
  • Step 2: Select Cluster Type
  • Step 3: Configure Networking
  • Step 4: Enable Security Features
  • Step 5: Configure Node Pools
  • Step 6: Enable Monitoring and Logging
  • Step 7: Get Credentials and Verify
• Examples
• Requirements
• See Also

Quick Start

Choose your cluster mode and create it:

# GKE Autopilot (Recommended for most use cases)
gcloud container clusters create-auto CLUSTER_NAME \
  --region=europe-west2 \
  --enable-ip-alias

# GKE Standard (if you need node control)
gcloud container clusters create CLUSTER_NAME \
  --region=europe-west2 \
  --enable-ip-alias \
  --machine-type=n2-standard-4 \
  --num-nodes=3

Instructions

Step 1: Decide Between Autopilot and Standard

Choose Autopilot if:

• You have Spring Boot microservices (stateless, scalable)
• You want Google to manage nodes and security
• You benefit from per-pod billing (variable workloads)
• Team focuses on application development, not infrastructure
• You need rapid scaling and cost optimization

Choose Standard if:

• You need full control over node configuration
• You have specific infrastructure requirements
• You need custom kernel or privileged containers
• You have dedicated Kubernetes operations expertise

Recommendation: Use Autopilot for most new GKE deployments. It provides 99.9% SLA, automatic security patching, and cost savings up to 60%.

Step 2: Select Cluster Type (Regional vs Zonal)

Regional (Production Recommended):

# 99.95% SLA for control plane
# Control plane and nodes distributed across multiple zones
gcloud container clusters create-auto CLUSTER_NAME \
  --region=europe-west2  # Distributes across a, b, c zones

Zonal (Development/Test Only):

# 99.5% SLA, single point of failure
# Use only for non-critical environments
gcloud container clusters create-auto CLUSTER_NAME \
  --zone=europe-west2-a

Step 3: Configure Networking (VPC-Native Required)

All production clusters must be VPC-native with proper IP allocation:

gcloud container clusters create-auto CLUSTER_NAME \
  --region=europe-west2 \
  --network=wtr-vpc \
  --subnetwork=wtr-cluster-subnet \
  --enable-ip-alias \
  --cluster-secondary-range-name=pods \
  --services-secondary-range-name=services

IP Ranges (Example):

• Primary (Nodes): 10.0.0.0/24
• Secondary Pods: 10.1.0.0/16
• Secondary Services: 10.2.0.0/20

Step 4: Enable Security Features

gcloud container clusters create-auto CLUSTER_NAME \
  --region=europe-west2 \
  --enable-private-nodes \
  --enable-private-endpoint \
  --master-ipv4-cidr=172.16.0.0/28 \
  --enable-master-authorized-networks \
  --master-authorized-networks=203.0.113.0/24

Security Features:

• Private nodes (no public IPs)
• Private endpoint (kubectl only from VPC)
• Workload Identity enabled by default
• Shielded nodes enabled by default

Step 5: Configure Node Pools (Standard Only)

For GKE Standard, create specialized node pools:

# Production workloads
gcloud container node-pools create production-pool \
  --cluster=CLUSTER_NAME \
  --region=europe-west2 \
  --machine-type=n2-standard-4 \
  --num-nodes=3 \
  --enable-autoscaling \
  --min-nodes=2 \
  --max-nodes=10

# Batch/non-critical workloads (optional)
gcloud container node-pools create batch-pool \
  --cluster=CLUSTER_NAME \
  --region=europe-west2 \
  --machine-type=n2-standard-2 \
  --spot  # Up to 91% cheaper

Step 6: Enable Monitoring and Logging

gcloud container clusters update CLUSTER_NAME \
  --region=europe-west2 \
  --logging=SYSTEM,WORKLOAD \
  --monitoring=SYSTEM,WORKLOAD \
  --enable-cloud-logging \
  --enable-cloud-monitoring \
  --enable-managed-prometheus

Step 7: Get Credentials and Verify

# Get kubectl credentials
gcloud container clusters get-credentials CLUSTER_NAME \
  --region=europe-west2 \
  --project=PROJECT_ID

# Verify cluster access
kubectl cluster-info
kubectl get nodes

Examples

Example 1: Production Autopilot Cluster

#!/bin/bash
# Create production-ready Autopilot cluster for Supplier Charges Hub

CLUSTER_NAME="supplier-charges-production"
REGION="europe-west2"
PROJECT_ID="ecp-wtr-supplier-charges-prod"
NETWORK="wtr-vpc"
SUBNET="wtr-prod-subnet"

gcloud container clusters create-auto $CLUSTER_NAME \
  --region=$REGION \
  --project=$PROJECT_ID \
  --network=$NETWORK \
  --subnetwork=$SUBNET \
  --enable-ip-alias \
  --cluster-secondary-range-name=pods \
  --services-secondary-range-name=services \
  --enable-private-nodes \
  --enable-private-endpoint \
  --master-ipv4-cidr=172.16.0.0/28 \
  --enable-master-authorized-networks \
  --master-authorized-networks=203.0.113.0/24 \
  --logging=SYSTEM,WORKLOAD \
  --monitoring=SYSTEM,WORKLOAD \
  --release-channel=regular \
  --enable-managed-prometheus

# Get credentials
gcloud container clusters get-credentials $CLUSTER_NAME \
  --region=$REGION \
  --project=$PROJECT_ID

# Verify
kubectl cluster-info

Example 2: Development Zonal Cluster

# Quick dev/test cluster (lower cost, single zone)
gcloud container clusters create-auto dev-cluster \
  --zone=europe-west2-a \
  --project=ecp-wtr-supplier-charges-labs

Example 3: GKE Standard with Multiple Node Pools

# Create Standard cluster
gcloud container clusters create managed-cluster \
  --region=europe-west2 \
  --machine-type=n2-standard-4 \
  --num-nodes=3 \
  --enable-autoscaling \
  --min-nodes=2 \
  --max-nodes=10 \
  --enable-ip-alias \
  --network=wtr-vpc \
  --subnetwork=wtr-cluster-subnet

# Add specialized batch node pool
gcloud container node-pools create batch-pool \
  --cluster=managed-cluster \
  --region=europe-west2 \
  --machine-type=n2-highmem-8 \
  --spot \
  --enable-autoscaling \
  --min-nodes=0 \
  --max-nodes=20

Requirements

• gcloud CLI configured with appropriate project and permissions
• GCP project with GKE API enabled: gcloud services enable container.googleapis.com
• VPC and subnets already created with secondary IP ranges
• For private clusters: authorized networks configured (your office IP range)
• IAM role: roles/container.admin or roles/container.clusterManager

See Also

• gcp-gke-workload-identity - Set up secure service-to-service authentication
• gcp-gke-deployment-strategies - Deploy and update applications
• gcp-gke-troubleshooting - Diagnose and fix cluster issues