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atatps_250754's avatar
atatps_250754
Icon for Altocumulus rankAltocumulus
Mar 16, 2017

iRule breaking iApp Template?

Gents,

Armed with this how-to article on DevCentral, I built an iApp template to automate app creation. However, the template only deploys properly when the iRule section is omitted otherwise it will throw this error:

 

01070151:3: Rule [/Common/IAPPTEST-irule.app/IAPPTEST-Homepage-http] error: /Common/IAPPTEST-irule.app/IAPPTEST-Homepage-http:2: error: [parse error: PARSE syntax 25 {syntax error in expression " \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\...": character not legal in expressions}][{ \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" }]

 

This is the iRule portion that's breaking the template:

 

tmsh::create {
ltm rule IAPPTEST-Homepage-http
    when HTTP_REQUEST {
if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
 pool IAPPTEST-ebiz-http member 10.1.10.101
 } else {
pool IAPPTEST-ebiz-http
 }
}
}

tmsh::create {
ltm rule IAPPTEST-Homepage-https
    when HTTP_REQUEST {
if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
 pool IAPPTEST-ebiz-https member 10.1.10.101
 } else {
pool IAPPTEST-ebiz-https
 }
}
}

 

Anything wrong with the syntax? I'm happy to provide the whole template code if that's helpful. Device info: LTM, 12.1.2

BIG-IP
devops
iApps
  • atatps_250754's avatar
    atatps_250754
    Mar 24, 2017

    Was able to get help from Support. The solution, contrary to the article, was to remove the backslashes so it should be:

     

        tmsh::create {
    ltm rule IAPPTEST-Homepage-http
    when HTTP_REQUEST {
    if { [string tolower [HTTP::path]] starts_with "/homepage"}{
     pool IAPPTEST-ebiz-http member 10.1.10.101
     } else { 
     pool IAPPTEST-ebiz-http  
     } 
     }
    }

     

    As opposed to:

     

        tmsh::create {
    ltm rule IAPPTEST-Homepage-http
        when HTTP_REQUEST {
    if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
     pool IAPPTEST-ebiz-http member 10.1.10.101
     } else {
    pool IAPPTEST-ebiz-http
     }
    }
    }

     

  • atatps_250754's avatar
    atatps_250754
    Icon for Altocumulus rankAltocumulus
    Mar 17, 2017

    Here's the full template if that helps:

     

    tmsh::create {
ltm node 10.1.10.101
    address 10.1.10.101
}
tmsh::create {
ltm node 10.1.10.102
    address 10.1.10.102
}
tmsh::create {
ltm node 10.1.10.103
    address 10.1.10.103
}
tmsh::create {
ltm node 10.1.10.104
    address 10.1.10.104
}
tmsh::create {
ltm node 10.1.10.105
    address 10.1.10.105
}
tmsh::create {
ltm node 10.1.10.106
    address 10.1.10.106
}


tmsh::create {
ltm pool IAPPTEST-app
    members replace-all-with {
        10.1.10.104:9001 {
            address 10.1.10.104
        }
        10.1.10.105:9001 {
            address 10.1.10.105
        }
    }
    monitor tcp 
}

tmsh::create {
ltm pool IAPPTEST-boe
    members replace-all-with {
        10.1.10.106:8080 {
            address 10.1.10.106
        }
    }
}

tmsh::create {
ltm pool IAPPTEST-ebiz-http
    members replace-all-with {
        10.1.10.101:80 {
            address 10.1.10.101
        }
        10.1.10.102:80 {
            address 10.1.10.102
        }
        10.1.10.103:80 {
            address 10.1.10.103
        }
    }
    monitor http 
}

tmsh::create {
ltm pool IAPPTEST-ebiz-https
    members replace-all-with {
        10.1.10.101:443 {
            address 10.1.10.101
        }
        10.1.10.102:443 {
            address 10.1.10.102
        }
        10.1.10.103:443 {
            address 10.1.10.103
        }
    }
    monitor https 
}


tmsh::create {
ltm rule IAPPTEST-Homepage-http
    when HTTP_REQUEST {
if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
 pool IAPPTEST-ebiz-http member 10.1.10.101
 } else {
pool IAPPTEST-ebiz-http
 }
}
}

tmsh::create {
ltm rule IAPPTEST-Homepage-https
    when HTTP_REQUEST {
if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
 pool IAPPTEST-ebiz-https member 10.1.10.101
 } else {
pool IAPPTEST-ebiz-https
 }
}
}


tmsh::create {
ltm virtual IAPPTEST-app
    destination 10.100.100.100:9001
    ip-protocol tcp
    mask 255.255.255.255
    pool IAPPTEST-app
    profiles replace-all-with {
        fastL4 { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
}

tmsh::create {  
ltm virtual IAPPTEST-boe
    destination 10.100.100.100:8080
    ip-protocol tcp
    mask 255.255.255.255
    pool IAPPTEST-boe
    profiles replace-all-with {
        fastL4 { }
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
}

tmsh::create {  
ltm virtual IAPPTEST-ebiz-http
    destination 10.100.100.100:80
    ip-protocol tcp
    mask 255.255.255.255
    pool IAPPTEST-ebiz-http
    profiles replace-all-with {
        http-with-xforward { }
        tcp { }
    }
    rules {
        IAPPTEST-Homepage-http
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
}

tmsh::create {  
ltm virtual IAPPTEST-ebiz-https
    destination 10.100.100.100:443
    ip-protocol tcp
    mask 255.255.255.255
    pool IAPPTEST-ebiz-https
    profiles replace-all-with {
        http-with-xforward { }
        tcp-lan-optimized {
            context serverside
        }
        tcp-mobile-optimized {
            context clientside
        }
    }
    rules {
        IAPPTEST-Homepage-https
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
}

     

  • JRahm's avatar
    JRahm
    Icon for Admin rankAdmin
    Mar 17, 2017

    if you wrap your iRule config like this:

     

    tmsh::create "irule config"

    does that help?

     

  • atatps_250754's avatar
    atatps_250754
    Icon for Altocumulus rankAltocumulus
    Mar 21, 2017

    Hi Jason - When replacing the {} with "" I receive this error:

    Original syntax:

     

        tmsh::create {
    ltm rule IAPPTEST-Homepage-http
        when HTTP_REQUEST {
    if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
     pool IAPPTEST-ebiz-http member 10.1.10.101
     } else {
    pool IAPPTEST-ebiz-http
     }
    }
    }

     

    Suggested change:

     

        tmsh::create "
    ltm rule IAPPTEST-Homepage-http
        when HTTP_REQUEST {
    if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
     pool IAPPTEST-ebiz-http member 10.1.10.101
     } else {
    pool IAPPTEST-ebiz-http
     }
    }
    "

     

    Any other suggestions?

  • atatps_250754's avatar
    atatps_250754
    Icon for Altocumulus rankAltocumulus
    Mar 24, 2017

    Was able to get help from Support. The solution, contrary to the article, was to remove the backslashes so it should be:

     

        tmsh::create {
    ltm rule IAPPTEST-Homepage-http
    when HTTP_REQUEST {
    if { [string tolower [HTTP::path]] starts_with "/homepage"}{
     pool IAPPTEST-ebiz-http member 10.1.10.101
     } else { 
     pool IAPPTEST-ebiz-http  
     } 
     }
    }

     

    As opposed to:

     

        tmsh::create {
    ltm rule IAPPTEST-Homepage-http
        when HTTP_REQUEST {
    if { \[string tolower \[HTTP::path\]\] starts_with \"/homepage/\" } {
     pool IAPPTEST-ebiz-http member 10.1.10.101
     } else {
    pool IAPPTEST-ebiz-http
     }
    }
    }