Example VCL for backend check

[Alex Davies]

Hi,

I'm trying to setup varnish in a fairly simple situation - I have a
box with 15G of RAM and 15G of disk space. I want Varnish to use the
lot. I've got 4 backend webservers, and I want varnish to test them
all and ensure that they return a 200 code. However, i'm really
struggling with the VCL examples - is there a reference that a
non-programmer such as I can use?

I'm figuring that I need something like

# web1
backend default {
  .host = "xxx.xxx";
  .port = "80";
    .probe = {
    .url = "/";
    .timeout = 34 ms;
    .interval = 1s;
    .window = 10;
    .threshold = 8;
  }
}

# web2
backend default {
  .host = "xxx.xxx";
  .port = "80";
    .probe = {
    .url = "/";
    .timeout = 34 ms;
    .interval = 1s;
    .window = 10;
    .threshold = 8;
  }
}

And then something to glue all the backends together, but I see many
different options in the manuals! I'd appreciate a pointer in the
right direction if anyone could spare one. The vcl man page isnt
entirely obvious to me!

Many thanks,

Alex

-- 
Alex Davies

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