Warn when users reload with options that aren't going to be applied #1227
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theme/cli
Flags and documentation for the CLI interface
theme/config
Relating to Consul Agent configuration, including reloading
theme/operator-usability
Replaces UX. Anything related to making things easier for the practitioner
type/enhancement
Proposed improvement or new feature
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If a user does
consul reloadand changes parameters that aren't reloadable we should issue a warning to the log. Otherwise, things can get pretty confusing for users. This is the list of reloadable parameters:https://www.consul.io/docs/agent/options.html#reloadable-configuration
This came up on #1225 where a user was trying to update their DNS TTLs. Those could actually be reloaded pretty easily, but in general it would be a good user experience to tell them that not all changes got applied in the reload. This would also be pretty easy to do by comparing the two configs minus the reloadable parts and noting any differences.
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