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2. Service accounts
A service account in Google is a special type of Google account that belongs to your application or a virtual machine (VM), instead of an individual end-user. It allows your application to authenticate and interact with various Google Cloud Platform (GCP) services programmatically, without requiring human intervention or the user’s credentials.
Service accounts are commonly used for server-to-server communication or machine-to-machine communication within GCP environments. They are particularly useful for automating tasks or accessing GCP resources securely, such as accessing Google Cloud Storage buckets, using Google Cloud APIs, or interacting with Google Compute Engine instances.
Key characteristics of a service account include:
| Feature | Description |
|---|---|
| No Associated Human User | Unlike regular Google accounts, service accounts are not associated with individual users. Instead, they are associated with a project or application. |
| JSON Key File | Service accounts are authenticated using cryptographic keys. When you create a service account, you can download a JSON key file that contains the private key used to authenticate requests. |
| Granular IAM Permissions | Service accounts can be assigned specific permissions using Google’s Identity and Access Management (IAM) system. This allows you to control what resources the service account can access and what actions it can perform. |
| Machine Identity | Service accounts provide a way for your application or service to assert its identity when interacting with other GCP services. This helps ensure that access is properly controlled and audited. |
| Scoped Access | Service accounts can be granted access to only the resources they need, reducing the risk of unauthorized access or accidental data exposure. |
Overall, service accounts are a powerful mechanism for managing access to GCP resources in a secure and controlled manner. They are widely used in GCP environments for automation, integration, and accessing cloud services programmatically.