v1.0.6

Release notes — v1.0.6

Built-in SMTP email notifications

Watchdog can now send configurable email notifications directly through an SMTP server.

What’s new

• Send one failure notification when a service first becomes unavailable.
• Suppress duplicate emails while the same incident continues.
• Send a recovery notification after remediation succeeds and the service becomes healthy again.
• Configure SMTP connection settings, recipients, TLS options, timeouts, subjects, and message bodies through YAML.
• Load SMTP passwords securely from an environment variable using password_env.
• Customize messages with template variables such as:
  • {{service}}
  • {{event}}
  • {{timestamp}}
  • {{check_type}}
  • {{detail}}
  • {{http_status}}
  • {{check_exit}}
  • {{action_status}}
• Added strict validation for SMTP and email configuration.
• Added a complete SMTP configuration example.
• Added automated coverage for failure notifications, duplicate suppression, and recovery notifications.
• Updated CI, documentation, dependency checks, and the built-in version information.

For production installations, storing the SMTP password in an environment variable is recommended instead of placing it directly in YAML.