Virtual Server Scripting

If you're running 11.4 or above you could incorporate the new iControl REST API. Here's what that might look like with cURL:

Removing the access profile:

curl -sk -u admin:admin -X DELETE https://x.x.x.x/mgmt/tm/ltm/virtual/my_vs/profiles/my_access_profile

Adding the access profile:

curl -sk -u admin:admin -X POST https://x.x.x.x/mgmt/tm/ltm/virtual/my_vs/profiles -d '{"name":"my_access_profile"}' -H "Content-Type: application/json"

It'd be pretty straight forward to incorporate these REST calls into a Perl, Python, PowerShell, or Bash script.

You could also, alternatively, use a data group to manage maintenance. Something like this:

when HTTP_REQUEST {
    if { [class match [virtual] equals maint_mode] } {
        ACCESS::disable
        pool maintmode_pool
    }
}

where "maint_mode" is a string-based data group containing the names of virtual servers that you want to be in maintenance mode. Example:

ltm data-group internal maint_mode {
    records {
        /Common/my-vs1 { }
    }
    type string
}