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DOC: configuration: do-resolve doesn't work with a port in the string

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Fix the documentation about do-resolve to handle the case where a port
is associated to the hostname in the Host header.

Must be backported as far as 2.0.
This commit is contained in:
William Lallemand 2022-08-26 16:38:43 +02:00
parent eba9088a7c
commit 1ef2460934
1 changed files with 3 additions and 2 deletions
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5
doc/configuration.txt
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@ -6579,7 +6579,8 @@ http-request do-resolve(<var>,<resolvers>,[ipv4,ipv6]) <expr>
based on information found in the request (IE a Host header).
If this action is used to find the server's IP address (using the
"set-dst" action), then the server IP address in the backend must be set
to 0.0.0.0.
to 0.0.0.0. The do-resolve action takes an host-only parameter, any port must
be removed from the string.
Example:
resolvers mydns
@ -6594,7 +6595,7 @@ http-request do-resolve(<var>,<resolvers>,[ipv4,ipv6]) <expr>
frontend fe
bind 10.42.0.1:80
http-request do-resolve(txn.myip,mydns,ipv4) hdr(Host),lower
http-request do-resolve(txn.myip,mydns,ipv4) hdr(Host),lower,regsub(:[0-9]*$,)
http-request capture var(txn.myip) len 40
# return 503 when the variable is not set,