After adding lua plugin with remap rule in remap.config and writing some
sample code mentioned in
https://docs.trafficserver.apache.org/en/latest/admin-guide/plugins/ts_lua.en.html#ts-client-request-set-url-host
I see the following error in traffic server.


[May  8 08:57:44.851] Server {0x2aeb0862c2c0} WARNING: Failed to create new
instance for plugin libtslua.so (not a TS_SUCCESS return)

[May  8 08:57:44.851] Server {0x2aeb0862c2c0} WARNING: Could not add rule
at line #25; Aborting!

[May  8 08:57:44.851] Server {0x2aeb0862c2c0} WARNING: [ReverseProxy] Can't
create new remap instance for plugin "libtslua.so" - [TSRemapNewInstance]
ts_lua_add_module failed at line 25

[May  8 08:57:44.852] Server {0x2aeb0862c2c0} WARNING: something failed
during BuildTable() -- check your remap plugins!

[May  8 08:57:44.852] Server {0x2aeb0862c2c0} WARNING: Can not load the
remap table, exiting out!


Is there any thing that I am missing out?


Thanks

Adi



On Sun, Feb 5, 2017 at 11:39 PM, Shu Kit Chan <[email protected]> wrote:

> No, you don't need lua runtime on your host. Just compile the
> experimental plugin and that's it. More information here -
> https://docs.trafficserver.apache.org/en/latest/admin-
> guide/plugins/ts_lua.en.html
>
> Thanks.
>
> On Wed, Jan 25, 2017 at 5:10 PM, Adi Mallikarjuna Reddy V
> <[email protected]> wrote:
> > For this to work, do I have to install Lua runtime on my host?
> >
> > On Wed, Jan 25, 2017 at 10:49 AM, Jeremy Payne <[email protected]>
> wrote:
> >>
> >> i use the lua plugin to change origin host based on certain conditions.
> >>
> >>
> >> https://docs.trafficserver.apache.org/en/latest/admin-
> guide/plugins/ts_lua.en.html#ts-client-request-set-url-host
> >>
> >> On Wed, Jan 25, 2017 at 12:33 PM, Adi Mallikarjuna Reddy V
> >> <[email protected]> wrote:
> >>>
> >>> any help with this is greatly appreciated. Is there a debug flag to
> check
> >>> header rewrite functionality?
> >>>
> >>> On Tue, Jan 24, 2017 at 1:42 PM, Adi Mallikarjuna Reddy V
> >>> <[email protected]> wrote:
> >>>>
> >>>> Thanks Sudheer for the pointer. I tried the following and it looks
> like
> >>>> this condition is not working
> >>>>
> >>>> cond %{READ_REQUEST_HDR_HOOK}
> >>>>
> >>>> cond %{CLIENT-HEADER:DEVHOST} = dev103
> >>>>
> >>>> set-destination HOST dev103.abc.com [L]
> >>>>
> >>>>
> >>>>
> >>>> and
> >>>>
> >>>> curl -H 'DEVHOST:dev103' 'http://actual_ats_endpoint/path' -v doesnt
> >>>> take to that host specified.
> >>>>
> >>>>
> >>>>
> >>>> Thanks
> >>>>
> >>>> Adi
> >>>>
> >>>>
> >>>>
> >>>> On Tue, Jan 24, 2017 at 12:28 PM, Sudheer Vinukonda
> >>>> <[email protected]> wrote:
> >>>>>
> >>>>> You'd need to specify a preremap request hook (such as Read Request
> >>>>> Header) in your rules. I think the default hook is Send Response
> Header.
> >>>>>
> >>>>> - Sudheer
> >>>>>
> >>>>> On Jan 24, 2017, at 12:24 PM, Adi Mallikarjuna Reddy V
> >>>>> <[email protected]> wrote:
> >>>>>
> >>>>> Ok, I tried the following one with no luck. The requests are always
> >>>>> going to the new host without the customer header value also.
> >>>>>
> >>>>> cond %{HEADER:DEV_HOST} = "dev102"
> >>>>> set-destination HOST dev102.abc.com [L]
> >>>>>
> >>>>>
> >>>>> my remap rule is
> >>>>>
> >>>>> map / http://abc.com/ @pristine_host_hdr=1 @plugin=header_rewrite.so
> >>>>> @pparam=my_header_rules.conf
> >>>>>
> >>>>>
> >>>>> Am I missing anything important here?
> >>>>>
> >>>>>
> >>>>> Thanks
> >>>>>
> >>>>> Adi
> >>>>>
> >>>>>
> >>>>> On Tue, Jan 24, 2017 at 11:46 AM, Jeremy Payne <[email protected]>
> >>>>> wrote:
> >>>>>>
> >>>>>> the lua plugin also has this functionality although may be somewhat
> >>>>>> overkill for your needs.
> >>>>>>
> >>>>>>
> >>>>>> On Tue, Jan 24, 2017 at 1:43 PM, Adi Mallikarjuna Reddy V
> >>>>>> <[email protected]> wrote:
> >>>>>>>
> >>>>>>> So to achieve my use case, can I try something like this?
> >>>>>>>
> >>>>>>> map / http://b.bar.com @plugin=header_rewrite.so
> @pparam=rules1.conf
> >>>>>>>
> >>>>>>> and my rules1.conf has
> >>>>>>>
> >>>>>>> cond %{HEADER:MY_HEADER} = "foo"
> >>>>>>> set-destination HOST mobile.bar.com [L]
> >>>>>>>
> >>>>>>> This should forward the request to mobile.bar.com if the request
> has
> >>>>>>> 'MY_HEADER' with value 'foo'.
> >>>>>>>
> >>>>>>>
> >>>>>>> Thanks
> >>>>>>>
> >>>>>>> Adi
> >>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>> On Tue, Jan 24, 2017 at 11:36 AM, Brian Geffon
> >>>>>>> <[email protected]> wrote:
> >>>>>>>>
> >>>>>>>> Sorry I think I meant header_rewrite.
> >>>>>>>>
> >>>>>>>> Brian
> >>>>>>>>
> >>>>>>>>
> >>>>>>>> On Tue, Jan 24, 2017, 11:26 Brian Geffon <[email protected]>
> >>>>>>>> wrote:
> >>>>>>>>>
> >>>>>>>>> There is a regex_remap plugin that is what you would want, take a
> >>>>>>>>> look in plugins/
> >>>>>>>>>
> >>>>>>>>> Brian
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>> On Tue, Jan 24, 2017, 11:25 Adi Mallikarjuna Reddy V
> >>>>>>>>> <[email protected]> wrote:
> >>>>>>>>>>
> >>>>>>>>>> Is there a config that allows to change remap rule based on the
> >>>>>>>>>> incoming header?
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>> My use case is , if I send a custom header in the request, the
> >>>>>>>>>> remap rule should be changed to different one than the default
> one
> >>>>>>>>>> configured.
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>> Thanks
> >>>>>>>>>>
> >>>>>>>>>> Adi
> >>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>
> >>>>
> >>>
> >>
> >
>

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