use

turnout use [APP] [SERVER] [--no-check]

Flag	Short	Description
--no-check	-n	Skip the stand reachability check

The daily command: point an app at a stand. The binding is written to turnout’s state; a running gateway picks it up on the very next request - no restarts, no env edits.

turnout use myapp staging     # work against staging
turnout use myapp prod-eu     # switch - sessions for staging stay alive in the jar

Leave either argument out on a terminal and turnout asks. Picking the app first narrows the server list to the ones that app is allowed to use - see Pickers.

turnout use                   # pick the app (or group), then the server

After switching, use probes the stand with a quick HTTP request and reports whether it is reachable. --no-check (-n) skips the probe:

turnout use myapp staging -n   # skip the reachability check

If the app has an allow-list of servers, only those are accepted; an empty list means the app may use any server from the catalog.

use also takes a group name - every member of the group is bound in one go:

turnout use contour staging   # the whole contour switches together

The current bindings are always visible in turnout status.