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Kai_Wilke
MVP
MVP

Problem this snippet solves:

Credits: Fork from https://devcentral.f5.com/codeshare?sid=310

The outlined script will detach an iRule from one or more virtual servers. I've added code to the original script, to allow the removal from one or more virtual servers across multiple partitions.

This script would search through the virtual server configuration of every partition and then detach the specified iRule from any virtual servers. The iRule itself would not become deleted from the system.

Cheers, Kai

How to use this snippet:

Script Output

[itacs@f5-02:Active:Standalone] tmp # tmsh run cli script file script.tcl /Common/iRule_2_Delete
Crawling Partition: /Common
        Crawling VS : /Common/Default_Forward
        Finished VS: No Rules bound to the VS
        Crawling VS : /Common/VS_DNS_210
        Finished VS: No Rules bound to the VS
        Crawling VS : /Common/VS_HTTPS_210
        Finished VS: iRule_2_Delete is not bound to VS
        Crawling VS : /Common/VS_HTTPS_211
        Finished VS: No Rules bound to the VS
        Crawling VS : /Common/VS_HTTP_210
        Finished VS: iRule_2_Delete is getting removed from VS
        Crawling VS : /Common/VS_HTTP_211
        Finished VS: iRule_2_Delete is getting removed from VS
        Crawling VS : /Common/VS_LDAPS_636
        Finished VS: iRule_2_Delete is not bound to VS
        Crawling VS : /Common/VS_LDAP_389
        Finished VS: iRule_2_Delete is not bound to VS
        Crawling VS : /Common/VS_RDP_211
        Finished VS: iRule_2_Delete is not bound to VS
Finished Partition: /Common
Crawling Partition: /Other1
        Crawling VS : /Other1/VS_HTTP_111
        Finished VS: /Common/iRule_2_Delete is getting removed from VS
Finished Partition: /Other1
Crawling Partition: /Other2
        Crawling VS : /Other2/VS_HTTP_151
        Finished VS: No Rules bound to the VS
Finished Partition: /Other2
The provided iRule /Common/iRule_2_Delete was removed from the following virtuals:
        /Common/VS_HTTP_210
        /Common/VS_HTTP_211
        /Other1/VS_HTTP_111
[itacs@f5-02:Active:Standalone] tmp # 

Code :

proc script::run {} {
    if { $tmsh::argc != 2 } then {
        puts "A single rule name must be provided"
        exit
    }
    set qualified_rulename [lindex $tmsh::argv 1]
    set vips_in_play ""
    foreach partition [tmsh::get_config auth partition] {
        set partition "/[tmsh::get_name $partition]"
        puts "Crawling Partition: $partition"
        tmsh::cd $partition
        if { $qualified_rulename starts_with $partition } then {
            set rulename [string range $qualified_rulename [expr { [string last "/" $qualified_rulename] + 1 } ] end]
        } else {
            set rulename $qualified_rulename
        }
        set vips [tmsh::get_config /ltm virtual]
        tmsh::begin_transaction 
        foreach vip $vips {
            puts "\tCrawling VS : $partition/[tmsh::get_name $vip]"
            if { [tmsh::get_field_value $vip "rules" rules] == 0 } then {
                puts "\tFinished VS: No Rules bound to the VS"
                continue
            }
            if { [lsearch -exact $rules $rulename] == -1 } then {
                puts "\tFinished VS: $rulename is not bound to VS"
                continue
            }
            if { [llength $rules] < 2 } then {
            puts "\tFinished VS: $rulename is getting removed from VS"
            tmsh::modify /ltm virtual [tmsh::get_name $vip] rules none
            } else {
            puts "\tFinished VS: $rulename is getting removed from VS"
                set id [lsearch -exact $rules $rulename]
                set keepers [lreplace $rules $id $id]
                tmsh::modify /ltm virtual [tmsh::get_name $vip] rules "{ $keepers }"
            }
            lappend vips_in_play "$partition/[tmsh::get_name $vip]"
        }
        tmsh::commit_transaction
        puts "Finished Partition: $partition"
    }
    if { $vips_in_play ne "" } then {
        puts "The iRule $rulename was removed from the following virtuals:"
        foreach vip_in_play $vips_in_play {
            puts "\t$vip_in_play"
        }
    } else {
        puts "The iRule $rulename was not found on any virtual."
    }
}

Tested this on version:

12.0
Comments
jba3126
Cirrus
Cirrus

Kal, Nice work! Any suggestions how I might leverage this or something similar to remove a particular iRule from a list? I have a UAT & Prod change so I have to segment out the removal. The gear I'd run this on has both so I need to be selective hence wanting to run it through a list. Again nice work!

 

Regards,

 

/jeff

 

Xterminator
Nimbostratus
Nimbostratus

Hello, thanks for the script

 

Adapted it to contain also eventual keywords, in order to delete the specified iRule from Virtual Servers which have a specific naming convention (e.g. application.test.bank.com). Just contains one more IF-THEN clause:

proc script::run {} { if { $tmsh::argc != 2 } then { puts "A single rule name must be provided" exit } set qualified_rulename [lindex $tmsh::argv 1] set vips_in_play "" foreach partition [tmsh::get_config auth partition] { set partition "/[tmsh::get_name $partition]" puts "Crawling Partition: $partition" tmsh::cd $partition if { $qualified_rulename starts_with $partition } then { set rulename [string range $qualified_rulename [expr { [string last "/" $qualified_rulename] + 1 } ] end] } else { set rulename $qualified_rulename } set vips [tmsh::get_config /ltm virtual] tmsh::begin_transaction foreach vip $vips { if { $vip contains "KEYWORD" } then { puts "\tCrawling VS : $partition/[tmsh::get_name $vip]" if { [tmsh::get_field_value $vip "rules" rules] == 0 } then { puts "\tFinished VS: No Rules bound to the VS" continue } if { [lsearch -exact $rules $rulename] == -1 } then { puts "\tFinished VS: $rulename is not bound to VS" continue } if { [llength $rules] < 2 } then { puts "\tFinished VS: $rulename is getting removed from VS" tmsh::modify /ltm virtual [tmsh::get_name $vip] rules none } else { puts "\tFinished VS: $rulename is getting removed from VS" set id [lsearch -exact $rules $rulename] set keepers [lreplace $rules $id $id] tmsh::modify /ltm virtual [tmsh::get_name $vip] rules "{ $keepers }" } lappend vips_in_play "$partition/[tmsh::get_name $vip]" } } tmsh::commit_transaction puts "Finished Partition: $partition" } if { $vips_in_play ne "" } then { puts "The iRule $rulename was removed from the following virtuals:" foreach vip_in_play $vips_in_play { puts "\t$vip_in_play" } } else { puts "The iRule $rulename was not found on any virtual." } }

Regards

Version history
Last update:
‎28-Jan-2016 03:56
Updated by:
Contributors