Fly.io (flyctl) CLI

Operate Fly.io apps safely and repeatably with flyctl.

Common tasks

• Deploy: fly deploy / fly deploy --remote-only
• Logs: fly logs -a <app>
• SSH / run commands: fly ssh console -a <app> -C "…"
• Secrets: fly secrets list/set -a <app>
• Postgres: fly postgres list/connect/db create/attach
• GitHub Actions deploys / PR previews

Defaults / safety

• Prefer read-only commands first: fly status, fly logs, fly config show, fly releases, fly secrets list.
• Do not run state-changing Fly.io commands without explicit user approval (deploy/scale, secrets set/unset, volume/db create/drop, app destroy, attach/detach).
  • Read-only actions are OK without approval.
  • Destructive actions (destroy/drop) always require explicit approval.