NetBox-Docker Okta & Google SSO Environment Additions

[skyefugate]

Related Issue: #1139

New Behavior

Adds native support for SSO configuration through environment variables and Docker secrets for OKTA OpenID Connect and Google OAuth2 providers. Users can now configure SSO authentication without needing to modify the configuration.py file directly.

Contrast to Current Behavior

Previously, users had to manually edit the configuration.py file to add SSO provider configurations. Now, SSO can be configured using standard environment variables and Docker secrets, following the same patterns used for other NetBox configuration options like database and Redis settings.

Discussion: Benefits and Drawbacks

Benefits:

• Eliminates the need to modify configuration files for common SSO providers
• Follows established patterns in the codebase for configuration management
• Supports both environment variables and Docker secrets for sensitive data
• Makes SSO configuration consistent with other NetBox Docker settings
• Addresses a frequently requested feature (Add SSO variables to configuration file, so they can be added to the environment files #1139)

Drawbacks:

• Adds more environment variables to manage
• Only covers two common SSO providers (though more can be added following the same pattern)

Backwards Compatibility:

• Fully backwards compatible - existing configurations continue to work unchanged
• New variables are optional and default to empty/None values

Changes to the Wiki

The Wiki should be updated to document the new SSO environment variables:

Suggested Wiki additions:

• Add section on SSO configuration using environment variables
• Document the new OKTA and Google OAuth2 variables
• Provide examples of using Docker secrets for SSO credentials
• Reference the updated env/netbox.env and docker-compose.override.yml.example files

Proposed Release Note Entry

Added SSO environment variable support: OKTA OpenID Connect and Google OAuth2 can now be configured using environment variables and Docker secrets without modifying configuration.py. New variables: SOCIAL_AUTH_OKTA_OPENIDCONNECT_KEY/SECRET/API_URL and SOCIAL_AUTH_GOOGLE_OAUTH2_KEY/SECRET. Secrets support Docker secrets named okta_openidconnect_secret and google_oauth2_secret.

Double Check

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• My PR targets the develop branch.