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From Adi Mallikarjuna Reddy V <adimallikarjunare...@gmail.com>
Subject Re: remap rules based on request header
Date Tue, 09 May 2017 17:19:13 GMT
1) Which ats version you are using? - 5.3.x
2) How do you compile/get libtslua.so ? - internal build from experimental
plugins
3) anything in error.log ? - nothing other than the one posted

On Mon, May 8, 2017 at 12:22 PM, Shu Kit Chan <chanshukit@gmail.com> wrote:

> A few questions
>
> 1) Which ats version you are using?
> 2) How do you compile/get libtslua.so ?
> 3) anything in error.log ?
>
> Thanks.
>
>
> On Mon, May 8, 2017 at 9:37 AM, Adi Mallikarjuna Reddy V
> <adimallikarjunareddy@gmail.com> wrote:
> > its libtslua.so, we built it as this.
> >
> > didnt work after removing @pristine_host_hdr=1 and enabling the same
> through
> > lua script.
> >
> >
> > I see the same error after above change. Looks like something to do with
> > initialization of plugin.
> >
> > Thanks
> > Adi
> >
> > On Mon, May 8, 2017 at 9:25 AM, Chou, Peter <pbchou@labs.att.com> wrote:
> >>
> >> Can you confirm under $PREFIX/libexec whether your so is libtslua.so or
> >> just tslua.so?
> >>
> >>
> >>
> >> From: Adi Mallikarjuna Reddy V [mailto:adimallikarjunareddy@gmail.com]
> >> Sent: Monday, May 08, 2017 9:19 AM
> >> To: users@trafficserver.apache.org
> >> Subject: Re: remap rules based on request header
> >>
> >>
> >>
> >> remap rule
> >>
> >>
> >>
> >> map /random_path http://dummy_destination.com/ @pristine_host_hdr=1
> >> @plugin=libtslua.so @pparam=lua_remap.lua
> >>
> >>
> >>
> >> script - lua_remap.lua
> >>
> >>
> >>
> >> function do_remap()
> >>
> >>     ts.client_request.set_url_host('actual_destination.com')
> >>
> >>     ts.client_request.set_url_port(80)
> >>
> >>     ts.client_request.set_url_scheme('http')
> >>
> >>     return TS_LUA_REMAP_DID_REMAP
> >>
> >> end
> >>
> >> No extra info with debug tag ts_lua enabled, as this seems to be failing
> >> to parse the remap config itself.
> >>
> >>
> >>
> >> Thanks
> >>
> >> Adi
> >>
> >>
> >>
> >> On Mon, May 8, 2017 at 9:13 AM, Jeremy Payne <jp557198@gmail.com>
> wrote:
> >>
> >> verify your remap rules and/or lua scripts to ensure they are
> >> syntactically correct.
> >>
> >>
> >>
> >> also enable debug.. .may provide further insight..
> >>
> >>
> >>
> >> can you also share your remap file and corresponding lua scripts ?
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> On Mon, May 8, 2017 at 11:00 AM, Adi Mallikarjuna Reddy V
> >> <adimallikarjunareddy@gmail.com> wrote:
> >>
> >> 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 <chanshukit@gmail.com>
> >> 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
> >>
> >> <adimallikarjunareddy@gmail.com> 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 <jp557198@gmail.com>
> >> > 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
> >> >> <adimallikarjunareddy@gmail.com> 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
> >> >>> <adimallikarjunareddy@gmail.com> 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
> >> >>>> <sudheervinukonda@yahoo.com> 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
> >> >>>>> <adimallikarjunareddy@gmail.com> 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 <
> jp557198@gmail.com>
> >> >>>>> 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
> >> >>>>>> <adimallikarjunareddy@gmail.com> 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
> >> >>>>>>> <briangeffon@gmail.com> wrote:
> >> >>>>>>>>
> >> >>>>>>>> Sorry I think I meant header_rewrite.
> >> >>>>>>>>
> >> >>>>>>>> Brian
> >> >>>>>>>>
> >> >>>>>>>>
> >> >>>>>>>> On Tue, Jan 24, 2017, 11:26 Brian Geffon <
> briangeffon@gmail.com>
> >> >>>>>>>> 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
> >> >>>>>>>>> <adimallikarjunareddy@gmail.com>
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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