gcloud-auth-verification
Guidelines for identifying and resolving missing Google Cloud authentication
Works with
---
name: gcloud-auth-verification
description: Guidelines for identifying and resolving missing Google Cloud authentication
license: Apache-2.0
---
# Handling Authentication Issues
## Common Error Messages
1. **gcloud/bq CLI**:
- `ERROR: (bq) You do not currently have an active account selected.`
- `No credentialed accounts.`
- `Configuration error: No account is currently active.`
2. **Execution Failures (Python/Notebooks)**:
- `google.auth.exceptions.DefaultCredentialsError: Could not automatically
determine credentials.`
- `Forbidden: 403 Access Denied` (when it's clearly an auth issue).
## Verification Step
Before asking the user to log in, independently verify the authentication status
by running: `gcloud auth list` * If the output contains `No credentialed
accounts.`, proceed to the **Corrective Action** steps below. * If an account
*is* listed but the user still receives a `403 Access Denied` error, the issue
is likely **IAM permissions** (e.g., missing BigQuery roles) on their active
account, rather than missing authentication. In this case, investigate the
permissions rather than asking them to log in again.
## Corrective Action
When missing credentials are confirmed, **DO NOT** attempt to fix the
credentials via code or alternative tools. Credentials must be established by
the user.
**Stop and ask the user to run the following commands in their terminal:**
1. **To authenticate the gcloud CLI**: `gcloud auth login`
2. **To set up Application Default Credentials (ADC)** (required for BQ CLI AND
most libraries/notebooks): `gcloud auth application-default login`
## Post-Login Verification
After the user confirms they have logged in, verify with: `gcloud auth list`
Then proceed with the original task.More Security skills
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