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7c0b4d861e
Now it becomes possible to specify "from foo" on a frontend/listen/backend
or even on a "defaults" line, to mention that defaults section "foo" needs
to be used to preset the proxy's settings.
When not set, the last section remains used. In case the designated name
is found at multiple places, it is rejected and an error indicates two
occurrences of the same name. Similarly, if the section name is found,
its name must only use valid characters. This allows multiple named
defaults section to continue to coexist without the risk that they will
cause trouble by accident.
When it comes to "defaults" relying on another defaults, what happens is
just that a new defaults section is created from the designated one. This
will make it possible for example to reuse some settings such as log-format
like below:
defaults tcp-clear
log stdout local0 info
log-format "%ci:%cp/%b/%si:%sp %ST %ts %U/%B %{+Q}r"
defaults tcp-ssl
log stdout local0 info
log-format "%ci:%cp/%b/%si:%sp %ST %ts %U/%B %{+Q}r ssl=%sslv"
defaults http-clear from tcp-clear
mode http
defaults http-ssl from tcp-ssl
mode http
frontend fe1 from http-clear
bind :8001
frontend fe2 from http-ssl
bind :8002
A small corner case remains in the error detection, if a second defaults
section appears with the same name after the point where it was used, and
nobody references it, the duplicate will not be detected. This could be
addressed by performing the syntactic checks in check_config_validity(),
and by postponing the freeing of the defaults, after tagging a defaults
section as explicitly looked up by another section. This doesn't seem
that important at the moment though.
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|---|---|---|
| .. | ||
| design-thoughts | ||
| internals | ||
| lua-api | ||
| 51Degrees-device-detection.txt | ||
| acl.fig | ||
| architecture.txt | ||
| close-options.txt | ||
| coding-style.txt | ||
| configuration.txt | ||
| cookie-options.txt | ||
| DeviceAtlas-device-detection.txt | ||
| gpl.txt | ||
| haproxy.1 | ||
| intro.txt | ||
| lgpl.txt | ||
| linux-syn-cookies.txt | ||
| lua.txt | ||
| management.txt | ||
| netscaler-client-ip-insertion-protocol.txt | ||
| network-namespaces.txt | ||
| peers-v2.0.txt | ||
| peers.txt | ||
| proxy-protocol.txt | ||
| queuing.fig | ||
| regression-testing.txt | ||
| seamless_reload.txt | ||
| SOCKS4.protocol.txt | ||
| SPOE.txt | ||
| WURFL-device-detection.txt | ||