Get HAProxy server name on response











up vote
0
down vote

favorite












I'm trying to get the HAProxy backend name for every response. For this I have a lua action like the following one:



core.register_action("hook", { "http-res" }, function(txn)

  txn:Info()

end)


and this config in the haproxy:



...

backend backend-puppetserver

  balance roundrobin

  http-response lua.hook

  server server_1 192.168.1.3

...


My problem is that no matter what I try to print that info (txn.sf, headers, etc.) I'm totally unable to find the server name (server_1) or it's ip. Where is that data stored? I can't find anything in the documentation. The most I get is the id by using txn.sf:srv_id()



Just to add that yeah, the action is working and it's printing information. This is just a matter of find the right call to fetch the server name.






lua haproxy







share|improve this question
























  • backend name refers to backend-puppetserver or backend server name whichi defined in server?
    – nuster cache server
    Nov 9 at 13:50










  • @nustercacheserver Sorry, what I'm trying to get in the actual server, not the backend name. Fixing the question.
    – David Moreno García
    Nov 9 at 15:09












  • you can just use http-response set-header BackendServer %s
    – nuster cache server
    Nov 9 at 15:16















up vote
0
down vote

favorite












I'm trying to get the HAProxy backend name for every response. For this I have a lua action like the following one:



core.register_action("hook", { "http-res" }, function(txn)

  txn:Info()

end)


and this config in the haproxy:



...

backend backend-puppetserver

  balance roundrobin

  http-response lua.hook

  server server_1 192.168.1.3

...


My problem is that no matter what I try to print that info (txn.sf, headers, etc.) I'm totally unable to find the server name (server_1) or it's ip. Where is that data stored? I can't find anything in the documentation. The most I get is the id by using txn.sf:srv_id()



Just to add that yeah, the action is working and it's printing information. This is just a matter of find the right call to fetch the server name.






lua haproxy







share|improve this question
























  • backend name refers to backend-puppetserver or backend server name whichi defined in server?
    – nuster cache server
    Nov 9 at 13:50










  • @nustercacheserver Sorry, what I'm trying to get in the actual server, not the backend name. Fixing the question.
    – David Moreno García
    Nov 9 at 15:09












  • you can just use http-response set-header BackendServer %s
    – nuster cache server
    Nov 9 at 15:16













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm trying to get the HAProxy backend name for every response. For this I have a lua action like the following one:



core.register_action("hook", { "http-res" }, function(txn)

  txn:Info()

end)


and this config in the haproxy:



...

backend backend-puppetserver

  balance roundrobin

  http-response lua.hook

  server server_1 192.168.1.3

...


My problem is that no matter what I try to print that info (txn.sf, headers, etc.) I'm totally unable to find the server name (server_1) or it's ip. Where is that data stored? I can't find anything in the documentation. The most I get is the id by using txn.sf:srv_id()



Just to add that yeah, the action is working and it's printing information. This is just a matter of find the right call to fetch the server name.






lua haproxy







share|improve this question















I'm trying to get the HAProxy backend name for every response. For this I have a lua action like the following one:



core.register_action("hook", { "http-res" }, function(txn)

  txn:Info()

end)


and this config in the haproxy:



...

backend backend-puppetserver

  balance roundrobin

  http-response lua.hook

  server server_1 192.168.1.3

...


My problem is that no matter what I try to print that info (txn.sf, headers, etc.) I'm totally unable to find the server name (server_1) or it's ip. Where is that data stored? I can't find anything in the documentation. The most I get is the id by using txn.sf:srv_id()



Just to add that yeah, the action is working and it's printing information. This is just a matter of find the right call to fetch the server name.






lua haproxy




lua haproxy






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 9 at 15:10

























asked Nov 7 at 11:17









David Moreno García

2,21543266




2,21543266












  • backend name refers to backend-puppetserver or backend server name whichi defined in server?
    – nuster cache server
    Nov 9 at 13:50










  • @nustercacheserver Sorry, what I'm trying to get in the actual server, not the backend name. Fixing the question.
    – David Moreno García
    Nov 9 at 15:09












  • you can just use http-response set-header BackendServer %s
    – nuster cache server
    Nov 9 at 15:16


















  • backend name refers to backend-puppetserver or backend server name whichi defined in server?
    – nuster cache server
    Nov 9 at 13:50










  • @nustercacheserver Sorry, what I'm trying to get in the actual server, not the backend name. Fixing the question.
    – David Moreno García
    Nov 9 at 15:09












  • you can just use http-response set-header BackendServer %s
    – nuster cache server
    Nov 9 at 15:16
















backend name refers to backend-puppetserver or backend server name whichi defined in server?
– nuster cache server
Nov 9 at 13:50




backend name refers to backend-puppetserver or backend server name whichi defined in server?
– nuster cache server
Nov 9 at 13:50












@nustercacheserver Sorry, what I'm trying to get in the actual server, not the backend name. Fixing the question.
– David Moreno García
Nov 9 at 15:09






@nustercacheserver Sorry, what I'm trying to get in the actual server, not the backend name. Fixing the question.
– David Moreno García
Nov 9 at 15:09














you can just use http-response set-header BackendServer %s
– nuster cache server
Nov 9 at 15:16




you can just use http-response set-header BackendServer %s
– nuster cache server
Nov 9 at 15:16












1 Answer
1






active

oldest

votes

















up vote
1
down vote



accepted










You can use



http-response set-header BackendServer %s





share|improve this answer





















    Your Answer






    StackExchange.ifUsing("editor", function () {
    StackExchange.using("externalEditor", function () {
    StackExchange.using("snippets", function () {
    StackExchange.snippets.init();
    });
    });
    }, "code-snippets");

    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "1"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














     

    draft saved


    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53188416%2fget-haproxy-server-name-on-response%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    1
    down vote



    accepted










    You can use



    http-response set-header BackendServer %s





    share|improve this answer

























      up vote
      1
      down vote



      accepted










      You can use



      http-response set-header BackendServer %s





      share|improve this answer























        up vote
        1
        down vote



        accepted







        up vote
        1
        down vote



        accepted






        You can use



        http-response set-header BackendServer %s





        share|improve this answer












        You can use



        http-response set-header BackendServer %s






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Nov 9 at 15:22









        nuster cache server

        638214




        638214






























             

            draft saved


            draft discarded



















































             


            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53188416%2fget-haproxy-server-name-on-response%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            -

            這個網誌中的熱門文章

            Tangent Lines Diagram Along Smooth Curve

            圖片
            7 1 I am trying to replicate a diagram and have a minimal example. I don't know how to add additional tangents between the specified points and preserve smoothness. documentclass{article} usepackage{tikz} usetikzlibrary{calc,intersections} begin{document} begin{tikzpicture} % Axes draw [->, name path=x] (-1,0) -- (11,0) node [right] {$x$}; draw [->] (0,-1) -- (0,6) node [above] {$y$}; % Origin node at (0,0) [below left] {$0$}; % Points coordinate (start) at (1,-0.8); coordinate (c1) at (3,3); coordinate (c2) at (5.5,1.5); coordinate (c3) at (8,4); coordinate (end) at (10.5,-0.8); % show the points foreach n in {start,c1,c2,c3,end} fill [black] (n) circle (2pt) node [below] {}; % join the coordinates draw [thick,name path=curve] (start) to[out=70,in=180] (c1) to[out=0,in=180]
            閱讀完整內容

            Yusuf al-Mu'taman ibn Hud

            圖片
            Main article: Taifa of Zaragoza Al-Mu'taman Ruler of Zaragoza Reign 1081–1085 Predecessor Ahmad al-Muqtadir Successor Al-Mustain II Born Zaragoza Died 1085 Full name Yusuf ibn Ahmad al-Mu'taman ibn Hūd House Banu Hud Yusuf ibn Ahmad al-Mu'taman ibn Hūd (Arabic: المؤتمن بالله يوسف إبن أحمد إبن هود ‎, al-Mutaman bi l-Lah , died c. 1085) was the third king of the Banu Hud dynasty who ruled over the Taifa of Zaragoza from 1081 to 1085. Yusuf al-Mutaman reigned during the height of power of Muslim Zaragoza , following the thriving period of his father Ahmad al-Muqtadir. He continued his father's efforts and created around him a court of intellectuals, living in the beautiful palace of Aljafería, nicknamed as "the palace of joy". Al-Mu'taman was also a scholarly king and a patron of science, philosophy and arts. As an example of a wise king, he knew astrology, philosophy, and especially mathematics, a discipline in which
            閱讀完整內容

            Zucchini

            圖片
            This article is about the vegetable. For other uses, see Zucchini (disambiguation). Zucchini (courgette) A striped and a uniform color zucchini Genus Cucurbita Species Cucurbita pepo Origin 19th century northern Italy The zucchini ( / z uː ˈ k iː n i / , American English) or courgette ( / k ʊər ˈ ʒ ɛ t / , British English) is a summer squash which can reach nearly 1 metre (100 cm; 39 in) in length, but is usually harvested when still immature at about 15 to 25 cm (6 to 10 in). [1] A zucchini is a thin-skinned cultivar of what in Britain and Ireland is referred to as a marrow. [2] [3] In South Africa, a zucchini is known as a baby marrow. Along with certain other squashes and pumpkins, the zucchini belongs to the species Cucurbita pepo . It can be dark or light green. A related hybrid, the golden zucchini, is a deep yellow or orange color. [4] In a culinary context, the zucchini is treated as a vegetable; it is usually cooked and presented as a savory dish o
            閱讀完整內容