when HTTP_REQUEST {
if { [active_members [LB::server pool]] < 1 } {
set STATIC_SORRY [URI::decode "%3C!DOCTYPE%20HTML%3E%0A%3Chtml%3E%0A%3Chead%3E%0A%3Cmeta%20charset%3D%22UTF-8%22%3E%0A%3Ctitle%3EOops!%20We%27ll%20be%20back%20shortly%3C%2Ftitle%3E%0A%3Cstyle%3E%0A*%20%7B%09margin%3A0%3Bpadding%3A%200%3B%7D%0Ahtml%2C%20body%7B%20height%3A100%25%3B%20color%3A%20%23333%3B%20font-family%3AHelvetica%2C%20Arial%2C%20sans-serif%3B%7D%0A.wrapper%20%7Bmax-width%3A%20960px%3Bwidth%3A100%25%3Bmargin%3A0%20auto%3Bdisplay%3Atable%3Bheight%3A100%25%3B%7D%0A.container%20%7Bdisplay%3A%20table-cell%3Bvertical-align%3A%20middle%3Btext-align%3Acenter%3B%7D%0Ah1%20%7Bfont-size%3A60px%3B%7D%0Ah2%20%7Bfont-weight%3Anormal%3Bfont-size%3A60px%3Bmargin-bottom%3A0.36em%3B%7D%0Ap%20%7Bline-height%3A1.4em%3Bmargin%3A0%200%201.3em%200%3B%7D%0A%3C%2Fstyle%3E%0A%3C%2Fhead%3E%0A%3Cbody%3E%0A%3Cdiv%20class%3D%22wrapper%22%3E%0A%3Cdiv%20class%3D%22container%22%3E%0A%3Ch1%3EOops!%3C%2Fh1%3E%0A%3Ch2%3EWe%27ll%20be%20back%20shortly.%3C%2Fh2%3E%0A%3Cp%3ESorry%20for%20the%20inconvnience%2C%20please%20try%20again%20in%20a%20few%20minutes%3C%2Fp%3E%0A%3C%2Fdiv%3E%0A%3C%2Fdiv%3E%0A%3C%2Fbody%3E%0A%3C%2Fhtml%3E"]
HTTP::respond 200 content $STATIC_SORRY
}
}
The above iRule can be utilized in order to serve a sorry page when all the pool members in the default pool (pool attached to the Virtual Server) are down.
The “STATIC_SORRY” is a variable that contains the URI Encoded version of the Sorry Page. Encoding the sorry page would help is the normal HTML page is not accepted by the F5. F5 can be finicky and not accept any HTML page that contains non-English characters. Hence, URI Encoded page can be of help in these cases.
This page can be utilized to encode the Sorry Page: URI Encoder/Decoder