Maintenance mode displays a banner message
Problem to solve
We want to add a read-only maintenance mode so sysadmins can block writes. In particular, this allows Geo to finish replicating all data before planned failovers. The MVC of Maintenance mode has a field to specify a banner message #211672 (closed). This should be displayed when the setting is enabled, and it should look like a broadcast message.
Intended users
User experience goal
Proposal
The MVC of Maintenance mode has a field to specify a banner message #211672 (closed). This should be displayed when the setting is enabled, and it should look like a broadcast message.
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Display the banner message like a broadcast message when Maintenance mode is enabled