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DOC: sample fetch methods: move distcc_* to the right locations

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The distcc* sample fetch methods were surprisingly located within the
"internal state" section, while they in fact depend on L6 contents.
This can be backported to all versions where they appear.
This commit is contained in:
Willy Tarreau 2022-03-10 10:39:58 +01:00
parent fbff854250
commit 3ec1461b03
1 changed files with 26 additions and 26 deletions
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52
doc/configuration.txt
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@ -17775,32 +17775,6 @@ date_us : integer
date sample). This sample is coherent with the date sample as it is comes date sample). This sample is coherent with the date sample as it is comes
from the same timeval structure. from the same timeval structure.
distcc_body(<token>[,<occ>]) : binary
Parses a distcc message and returns the body associated to occurrence #<occ>
of the token <token>. Occurrences start at 1, and when unspecified, any may
match though in practice only the first one is checked for now. This can be
used to extract file names or arguments in files built using distcc through
HAProxy. Please refer to distcc's protocol documentation for the complete
list of supported tokens.
distcc_param(<token>[,<occ>]) : integer
Parses a distcc message and returns the parameter associated to occurrence
#<occ> of the token <token>. Occurrences start at 1, and when unspecified,
any may match though in practice only the first one is checked for now. This
can be used to extract certain information such as the protocol version, the
file size or the argument in files built using distcc through HAProxy.
Another use case consists in waiting for the start of the preprocessed file
contents before connecting to the server to avoid keeping idle connections.
Please refer to distcc's protocol documentation for the complete list of
supported tokens.
Example :
# wait up to 20s for the pre-processed file to be uploaded
tcp-request inspect-delay 20s
tcp-request content accept if { distcc_param(DOTI) -m found }
# send large files to the big farm
use_backend big_farm if { distcc_param(DOTI) gt 1000000 }
env(<name>) : string env(<name>) : string
Returns a string containing the value of environment variable <name>. As a Returns a string containing the value of environment variable <name>. As a
reminder, environment variables are per-process and are sampled when the reminder, environment variables are per-process and are sampled when the
@ -19697,6 +19671,32 @@ Warning : Following sample fetches are ignored if used from HTTP proxies. They
all invalid usage (for instance inside a log-format string or a all invalid usage (for instance inside a log-format string or a
sample expression). So be careful. sample expression). So be careful.
distcc_body(<token>[,<occ>]) : binary
Parses a distcc message and returns the body associated to occurrence #<occ>
of the token <token>. Occurrences start at 1, and when unspecified, any may
match though in practice only the first one is checked for now. This can be
used to extract file names or arguments in files built using distcc through
HAProxy. Please refer to distcc's protocol documentation for the complete
list of supported tokens.
distcc_param(<token>[,<occ>]) : integer
Parses a distcc message and returns the parameter associated to occurrence
#<occ> of the token <token>. Occurrences start at 1, and when unspecified,
any may match though in practice only the first one is checked for now. This
can be used to extract certain information such as the protocol version, the
file size or the argument in files built using distcc through HAProxy.
Another use case consists in waiting for the start of the preprocessed file
contents before connecting to the server to avoid keeping idle connections.
Please refer to distcc's protocol documentation for the complete list of
supported tokens.
Example :
# wait up to 20s for the pre-processed file to be uploaded
tcp-request inspect-delay 20s
tcp-request content accept if { distcc_param(DOTI) -m found }
# send large files to the big farm
use_backend big_farm if { distcc_param(DOTI) gt 1000000 }
payload(<offset>,<length>) : binary (deprecated) payload(<offset>,<length>) : binary (deprecated)
This is an alias for "req.payload" when used in the context of a request (e.g. This is an alias for "req.payload" when used in the context of a request (e.g.
"stick on", "stick match"), and for "res.payload" when used in the context of "stick on", "stick match"), and for "res.payload" when used in the context of