Summary

Add an AZD_NON_INTERACTIVE environment variable that, when set to true or 1, enables non-interactive (no-prompt) mode without requiring the --no-prompt CLI flag.

Motivation

Currently, non-interactive mode can only be triggered via the --no-prompt CLI flag or automatic agent detection. There is no environment variable equivalent.

CI/CD pipelines and container-based workflows often configure behavior via environment variables rather than modifying command arguments. An AZD_NON_INTERACTIVE=true env var would make it trivial to configure non-interactive mode at the environment level (e.g., in a Dockerfile ENV directive or CI job config) without modifying every azd invocation.

Implementation Notes

• Check for AZD_NON_INTERACTIVE in ParseGlobalFlags() in cmd/auto_install.go
• Priority: explicit --no-prompt flag > AZD_NON_INTERACTIVE env var > agent auto-detection
• Accept true, 1 as truthy values (use strconv.ParseBool for consistency)
• Document the env var in the CLI reference