WIP: First attempt at auth0 flow for nextflow auth login

[ewels]

This PR introduces a new nextflow auth login command that enables OAuth2 authentication with Seqera Platform using Auth0.

Features

• OAuth2/PKCE Flow: Implements secure PKCE (Proof Key for Code Exchange) authentication flow
• Browser-based Login: Opens the user's default browser for authentication
• Local Callback Server: Runs a temporary local server on port 8085 to handle the OAuth callback
• Flexible API Endpoints: Prompts user for API URL (default https://api.cloud.seqera.io) - if not recognised, skips auth0 flow and asks user to manually enter a PAT.

Usage

# Authenticate with default Seqera Cloud
nextflow auth login

# Will prompt for API URL (defaults to https://api.cloud.seqera.io)
# Opens browser for authentication
# Saves credentials to ~/.config/seqera/credentials (or $XDG_CONFIG_HOME/seqera/credentials)

Implementation Details

• Uses Auth0 domain: seqera-development.eu.auth0.com
• Implements PKCE flow for enhanced security (no client secrets required)
• Cross-platform browser opening with fallbacks

Configuration

The Auth0 client ID is currently set to a placeholder and will need to be updated with the actual production value before merge.

Related

This implementation aligns with the authentication flow used in the VSCode Nextflow extension.

🤖 Generated with help from Claude Code

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