I'm trying to test a simple Varnish setup with no backend to serve a single
index.html file. This is for use on a maintenance page web server when the main
web site is down, more specifically, behind an AWS ALB with two target groups,
one with the main web servers and the other with two lightweight maintenance
page servers. I figured that it'd be nice to just leave out a Nginx
configuration since a single static file is all that's needed (images
referenced in the HTML are from other sources).
I'm using std.fileread("/var/www/html/index.html") to set the resp.body. The
documentation for std.fileread() says it is cached indefinitely, so how do I
get Varnish to re-read the file when it gets updated without having to restart
Varnish? The reason for this is that the maintenance page lists the ETA when
the web site should be back up, so if I need to extend the maintenance, I have
a manual script that creates and deploys a new version of the file to the
maintenance page servers.
Justin
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