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Forum Discussion

cmeyer's avatar
cmeyer
Icon for Altostratus rankAltostratus
Jul 18, 2022

Can I load balance multiple subdomain URLs?

Hey everyone, I know basics on my iRule creation but am wondering if it's possible to load balance multiple URLs from the same subdomain.  I am currently load balancing page.domain.com with no problem.  I am also now wanting to load balance page.domain.com/apicall...Not sure if I am searching with the correct syntax or what I am trying to do is feasible.  Currently running BIG-IP v15.1.5.1.

Thanks in advance.

 

Chad 

application delivery
iRule multiple pages

5 Replies

  • Daniel_Wolf's avatar
    Daniel_Wolf
    Icon for MVP rankMVP
    Jul 19, 2022

    Hi cmeyer,

    are you looking for Content Switching / URL based load balancing? In that case, this iRule should be a starting point: 

    when HTTP_REQUEST {
    switch -glob -- [string tolower [HTTP::path]] {
        "/path1*" {
            pool pool_app1
            return
        }
        "/path2*" {
            pool pool_app2
            return
        }
        default {
            pool pool_default
        }
    }
}

     Is this helpful for you?

    KR
    Daniel

    • cmeyer's avatar
      cmeyer
      Icon for Altostratus rankAltostratus
      Jul 19, 2022

      Daniel_Wolf In this case my pools would stay the same.  I am utilizing the same servers in each case.  Not sure if that matters.

      • Daniel_Wolf's avatar
        Daniel_Wolf
        Icon for MVP rankMVP
        Jul 20, 2022

        If you have loadbalancing for page.domain.com, loadbalancing will also work for page.domain.com/subsite1, page.domain.com/subsite2, or anything else - since they are served by the same pool of servers as page.domain.com. In this scenario, there is no need for an additional iRule.
        Unless... I didn't get your setup right 🙂