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Task #18368

Updated by Peter Amstutz over 1 year ago

Ability to tell the user about system maintenance.    Want a banner on workbench2. 

 A very simple implementation could be a public config item exported by Controller where an admin can populate a message to be shown to user, e.g. "we are aware of performance issues and are investigating a fix" or "scheduled maintenance on Saturday November 29th 21:00-23:00, Arvados will be unavailable". 

 Display of the banner could be one of (TBD): 

 * Box at the top of the screen, which pushes the content down until it is dismissed 
 * -Dialog Dialog overlay that pops up when the app is loaded, which must be dismissed- dismissed 

 Could add a menu item to the "notification" menu which brings the message back after being dismissed. 

 Assume data will come from a URL which will be part of the public config. 

 The URL body will have HTML which should be rendered inside the banner box. 

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