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From Adi Mallikarjuna Reddy V <adimallikarjunare...@gmail.com>
Subject Re: remap rules based on request header
Date Mon, 08 May 2017 16:37:23 GMT
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/
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__dummy-5Fdestination.com_&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=K0oZsi1uAx2GmQgJekzD1loEWHi9IblIQHkAeo6Gv6s&e=>
> @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
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__actual-5Fdestination.com&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=gMVKB-qIrbHaJpgahMg0b5Ci-6fcR9PjVjN7NDDmO5A&e=>
> ')
>
>     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
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.trafficserver.apache.org_en_latest_admin-2Dguide_plugins_ts-5Flua.en.html-23ts-2Dclient-2Drequest-2Dset-2Durl-2Dhost&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=8hNBtGINccPrv-LWK0mijOBbgZwcRbdEDUqjZT4aSQg&e=>
> 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
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.trafficserver.apache.org_en_latest_admin-2Dguide_plugins_ts-5Flua.en.html&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=Ywi_5Wywe1DE2z7TyH8_M3sGgN6FdF6QUj5F7iQeEzQ&e=>
>
> 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
> <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.trafficserver.apache.org_en_latest_admin-2Dguide_plugins_ts-5Flua.en.html-23ts-2Dclient-2Drequest-2Dset-2Durl-2Dhost&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=8hNBtGINccPrv-LWK0mijOBbgZwcRbdEDUqjZT4aSQg&e=>
> >>
> >> 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
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__dev103.abc.com&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=I-TXLn8hvUXSYc1jKRX6HA1RGKmTFotYZSH81xpjOKs&e=>
> [L]
> >>>>
> >>>>
> >>>>
> >>>> and
> >>>>
> >>>> curl -H 'DEVHOST:dev103' 'http://actual_ats_endpoint/path
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__actual-5Fats-5Fendpoint_path&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=FmYuLf6S_I1Eje2wF_gUJ09JKNmytmiMoqQa5sqjAks&e=>'
> -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
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__dev102.abc.com&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=_-vUOl7-IUQBxSWpCWQRHfgKTlkynDj4gS2EITb03PM&e=>
> [L]
> >>>>>
> >>>>>
> >>>>> my remap rule is
> >>>>>
> >>>>> map / http://abc.com/
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__abc.com_&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=kAUkZaOQFdrh7vBl9ZGp01US3UqVCgC2OZClw87297A&e=>
> @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
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__b.bar.com&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=ZmTeA-9TpDYjBZY8D5ZbIH7C0B8ARJQEGlVNQtwrM2E&e=>
> @plugin=header_rewrite.so @pparam=rules1.conf
> >>>>>>>
> >>>>>>> and my rules1.conf has
> >>>>>>>
> >>>>>>> cond %{HEADER:MY_HEADER} = "foo"
> >>>>>>> set-destination HOST mobile.bar.com
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__mobile.bar.com&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=OjW15Ogh8XoRzjMiKVm34weSRoDM37bI9V4bwLWvRRA&e=>
> [L]
> >>>>>>>
> >>>>>>> This should forward the request to mobile.bar.com
> <https://urldefense.proofpoint.com/v2/url?u=http-3A__mobile.bar.com&d=DwMFaQ&c=LFYZ-o9_HUMeMTSQicvjIg&r=8c5kS62dKm3-obVyLvkwkc-kTTgV1vAsbxSPwL-yi3o&m=v0mj0eWykXpy2ufhdjszlOPBB8feWuYo5EOWvakp7hY&s=OjW15Ogh8XoRzjMiKVm34weSRoDM37bI9V4bwLWvRRA&e=>
> 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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