HaProxy: re-route to other backend based on REGEX

acl URL_upload_mgiay_com           hdr(host) -i    upload.mgiay.com

#CURRENT STORAGE: node02

acl URL_file_mgiay_com                  hdr(host) -i    file.mgiay.com

#OLD STORAGE: node01

#_____OLD_STORAGE_[10.0.2.127]:BEGIN

#2010-2019:

acl URL_file_mgiay_com_s01 url_reg /(resize|crop)/\d+x\d+/201[0-9]/\d{1,2}/

acl URL_file_mgiay_com_s01 url_reg /201[0-9]/\d{1,2}/

#2020.01-2020.10:

acl URL_file_mgiay_com_s01 url_reg /(resize|crop)/\d+x\d+/2020/(0[1-9]|10)/

acl URL_file_mgiay_com_s01 url_reg /2020/(0[1-9]|10)/

#2020.11.01-2020.11.18:

acl URL_file_mgiay_com_s01 url_reg /(resize|crop)/\d+x\d+/2020/11/(0[1-9]|1[0-8])/

acl URL_file_mgiay_com_s01 url_reg /2020/11/(0[1-9]|1[0-8])/

#_____OLD_STORAGE_[10.0.2.127]:END

use_backend BE_URL_upload_mgiay_com       if  URL_upload_mgiay_com

use_backend BE_URL_file_mgiay_com_s01     if  URL_file_mgiay_com URL_file_mgiay_com_s01

use_backend BE_URL_file_mgiay_com              if  URL_file_mgiay_com

#_____________________________________________mgiay_STORAGE:BEGIN

backend BE_URL_upload_mgiay_com

    mode http

    balance roundrobin

    #server Storage_127_8081 10.0.2.127:8081 check

    #server Storage_100_8081 2.2.2.100:8081 check backup

    #server 2.2.2.126:8081  2.2.2.126:8081 check

    server  10.0.2.126:8081  10.0.2.126:8081 check

    

backend BE_URL_file_mgiay_com_s01

    #acl blacklist src -f /etc/haproxy/blacklist.lst

    #http-request deny if blacklist

    mode http

    #balance source

    balance roundrobin

    #redirect scheme https code 301 if !{ ssl_fc }

    cookie BE_URL_file_mgiay_com_s01 insert indirect

    #server Storage_2.92_63202 10.0.2.92:63202 check

    #server Storage_127_64280 10.0.2.127:64280 check backup

    #server Storage_100_64280 10.0.2.100:64280 check backup

    server  10.0.2.127:64280 10.0.2.127:64280 cookie 127_64280 weight 1 check

    

backend BE_URL_file_mgiay_com

    # acl blacklist src -f /etc/haproxy/blacklist.lst

    # http-request deny if blacklist

    mode http

    balance roundrobin

    #server Storage_2.92_63202 10.0.2.92:63202 check    

    #server Storage_127_64280 10.0.2.127:64280 check backup 

    #server Storage_100_64280 10.0.2.100:64280 check backup

    cookie BE_URL_file_mgiay_com insert indirect

    server  10.0.2.126:64280 10.0.2.126:64280 cookie 126_64280 weight 1 check

#_____________________________________________mgiay_STORAGE:END