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create_maxscale.awk (990B)

#!/bin/awk -f

BEGIN{
    found = 0;
    if(boundary == "") {boundary = 4;}
    if(number == "") {number = 2;}
    if(port == "") {port = 3313;}
    if(address == "") {address="192.168.2.99";}
    pat="\\[server"(boundary-1)"\\]";
    pat2="";
    repl="";
    for(i=boundary-2; i<boundary; i++) {
        pat2=pat2"server"i",";
    }
    pat2=substr(pat2, 1, length(pat2) - 1);
    for(i=boundary; i<boundary+number; i++) {
        repl=repl",server"i;
    }
}
{
    if($0 ~ pat2) {
        sub(pat2, pat2""repl, $0);
        print $0;
    } else {
        print $0;
    }
    if($0 ~ pat) {
        found = 1;
    }
    if((found == 1) && ($0 ~ /protocol=MariaDBBackend/)) {
        for(i = boundary; i < (boundary+number); i++) {
            port++;
            print "\n[server"i"]";
            print "type=server";
            print "address="address;
            print "port="port;
            print "protocol=MariaDBBackend\n";
    }
        found = 0;
        next;
    }
}
END{
}