Google Cloud Platform (GCP) Fundamentals
Google Cloud Platform provides enterprise-grade global infrastructure built on the exact same high-speed networks and data centers that power Google Search, YouTube, and Gmail.
Lesson 17 of 26 · Module: Google Cloud
16 min read · Source notes — Google Cloud Full Course [2025]
Google Cloud Platform provides enterprise-grade global infrastructure built on the exact same high-speed networks and data centers that power Google Search, YouTube, and Gmail.
The 4-tier structural tree governing policy inheritance, IAM, and resource isolation in GCP.
1. The 4-Tier GCP Resource Hierarchy
| Level | Component | DevOps Purpose |
|---|---|---|
| Level 1 (Top) | Organization Node | Represents the entire company (e.g., company.com). Central point of IAM control and compliance. |
| Level 2 | Folders | Group related projects by Department (Engineering, Marketing) or Environment (Dev, Staging, Prod). |
| Level 3 | Projects | The fundamental organizing entity. All cloud resources must belong to exactly one project. Billing is attached here. |
| Level 4 (Leaf) | Resources | Individual service instances: Compute Engine VMs, Cloud Storage buckets, GKE clusters, BigQuery datasets. |
Setting threshold alerts (50%, 90%, 100%) to trigger Pub/Sub notifications before unexpected charges occur.
2. Cloud Shell & the gcloud CLI
Google Cloud includes a free in-browser Debian terminal pre-configured with the Google Cloud SDK, Docker, Terraform, and Git.
Essential gcloud Commands
# Set active project
gcloud config set project my-devops-project-123
# Set default compute region and zone
gcloud config set compute/region us-central1
gcloud config set compute/zone us-central1-a
# Authenticate and login
gcloud auth loginKeep going: ← Lesson 16 · Lesson 18 → · Module overview · Track it in the Self Guide
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