Append uniqueid to a http request at varnish

Uday Kumar uday.polu at indiamart.com
Tue Apr 30 08:07:11 UTC 2024


hello Guillaume,

I am trying to install vmod_uuid on my centOS 7 machine

Resource i used:
https://github.com/otto-de/libvmod-uuid/blob/5.x/INSTALL.rst

varnish version: 5.2.1

I am getting below errors while running *make *command

make[1]: Entering directory `/usr/local/src/libvmod-uuid'
Making all in src
make[2]: Entering directory `/usr/local/src/libvmod-uuid/src'
  CC       vmod_uuid.lo
In file included from vmod_uuid.c:35:0:
vcc_if.h:11:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING vmod_uuid(VRT_CTX, struct vmod_priv *);
 ^
vcc_if.h:11:31: error: expected ‘)’ before ‘struct’
 VCL_STRING vmod_uuid(VRT_CTX, struct vmod_priv *);
                               ^
vcc_if.h:12:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING vmod_uuid_v1(VRT_CTX, struct vmod_priv *);
 ^
vcc_if.h:12:34: error: expected ‘)’ before ‘struct’
 VCL_STRING vmod_uuid_v1(VRT_CTX, struct vmod_priv *);
                                  ^
vcc_if.h:13:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING vmod_uuid_v3(VRT_CTX, struct vmod_priv *, VCL_STRING,
 ^
vcc_if.h:13:34: error: expected ‘)’ before ‘struct’
 VCL_STRING vmod_uuid_v3(VRT_CTX, struct vmod_priv *, VCL_STRING,
                                  ^
vcc_if.h:15:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING vmod_uuid_v4(VRT_CTX, struct vmod_priv *);
 ^
vcc_if.h:15:34: error: expected ‘)’ before ‘struct’
 VCL_STRING vmod_uuid_v4(VRT_CTX, struct vmod_priv *);
                                  ^
vcc_if.h:16:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING vmod_uuid_v5(VRT_CTX, struct vmod_priv *, VCL_STRING,
 ^
vcc_if.h:16:34: error: expected ‘)’ before ‘struct’
 VCL_STRING vmod_uuid_v5(VRT_CTX, struct vmod_priv *, VCL_STRING,
                                  ^
vmod_uuid.c:48:17: error: expected ‘)’ before ‘int’
 mkuuid(VRT_CTX, int utype, uuid_t *uuid, const char *str, va_list ap)
                 ^
vmod_uuid.c:76:1: error: unknown type name ‘VCL_STRING’
 _uuid(VRT_CTX, uuid_t *uuid, int utype, ...)
 ^
vmod_uuid.c:76:16: error: expected ‘)’ before ‘uuid_t’
 _uuid(VRT_CTX, uuid_t *uuid, int utype, ...)
                ^
vmod_uuid.c:104:21: error: expected ‘)’ before ‘void’
 free_uuids(VRT_CTX, void *priv)
                     ^
vmod_uuid.c:116:39: error: array type has incomplete element type
 static const struct vmod_priv_methods uuid_priv_task_methods[1] = {{
                                       ^
vmod_uuid.c:117:3: error: field name not in record or union initializer
   .magic = VMOD_PRIV_METHODS_MAGIC,
   ^
vmod_uuid.c:117:3: error: (near initialization for ‘uuid_priv_task_methods’)
vmod_uuid.c:117:12: error: ‘VMOD_PRIV_METHODS_MAGIC’ undeclared here (not
in a function)
   .magic = VMOD_PRIV_METHODS_MAGIC,
            ^
vmod_uuid.c:118:3: error: field name not in record or union initializer
   .type = "vmod_uuid_priv_task",
   ^
vmod_uuid.c:118:3: error: (near initialization for ‘uuid_priv_task_methods’)
vmod_uuid.c:119:3: error: field name not in record or union initializer
   .fini = free_uuids
   ^
vmod_uuid.c:119:3: error: (near initialization for ‘uuid_priv_task_methods’)
vmod_uuid.c:119:11: error: ‘free_uuids’ undeclared here (not in a function)
   .fini = free_uuids
           ^
vmod_uuid.c:123:20: error: expected ‘)’ before ‘struct’
 get_uuids(VRT_CTX, struct vmod_priv *priv, uuid_t **uuid_ns)
                    ^
vmod_uuid.c:163:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING
 ^
vmod_uuid.c:164:23: error: expected ‘)’ before ‘struct’
 vmod_uuid_v1(VRT_CTX, struct vmod_priv *priv)
                       ^
vmod_uuid.c:172:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING
 ^
vmod_uuid.c:173:23: error: expected ‘)’ before ‘struct’
 vmod_uuid_v3(VRT_CTX, struct vmod_priv *priv, VCL_STRING ns, VCL_STRING
name)
                       ^
vmod_uuid.c:182:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING
 ^
vmod_uuid.c:183:23: error: expected ‘)’ before ‘struct’
 vmod_uuid_v4(VRT_CTX, struct vmod_priv *priv)
                       ^
vmod_uuid.c:191:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING
 ^
vmod_uuid.c:192:23: error: expected ‘)’ before ‘struct’
 vmod_uuid_v5(VRT_CTX, struct vmod_priv *priv, VCL_STRING ns, VCL_STRING
name)
                       ^
vmod_uuid.c:201:1: error: unknown type name ‘VCL_STRING’
 VCL_STRING
 ^
vmod_uuid.c:202:20: error: expected ‘)’ before ‘struct’
 vmod_uuid(VRT_CTX, struct vmod_priv *priv)
                    ^
vmod_uuid.c:116:39: error: ‘uuid_priv_task_methods’ defined but not used
[-Werror=unused-variable]
 static const struct vmod_priv_methods uuid_priv_task_methods[1] = {{
                                       ^
cc1: all warnings being treated as errors
make[2]: *** [vmod_uuid.lo] Error 1
make[2]: Leaving directory `/usr/local/src/libvmod-uuid/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/src/libvmod-uuid'
make: *** [all] Error 2

Please help

*Thanks & Regards,*
*Uday Kumar*


On Thu, Apr 25, 2024 at 6:18 AM Uday Kumar <uday.polu at indiamart.com> wrote:

> Hi Guillaume,
>
> Thanks for this reminder, I will check this and get back to you!
>
>
> *Thanks & Regards,*
> *Uday Kumar*
>
>
> On Thu, Apr 25, 2024 at 1:12 AM Guillaume Quintard <
> guillaume.quintard at gmail.com> wrote:
>
>> Hi Uday,
>>
>> I feel like we've explored this last year:
>> https://varnish-cache.org/lists/pipermail/varnish-misc/2023-May/027238.html
>>
>> I don't think the answer has changed much: vmod-uuid is your best bet
>> here.
>>
>> Please let me know if I'm missing some requirements.
>>
>> Kind regards,
>>
>> --
>> Guillaume Quintard
>>
>>
>> On Wed, Apr 24, 2024 at 4:26 AM Uday Kumar <uday.polu at indiamart.com>
>> wrote:
>>
>>> Hello all,
>>>
>>> We follow below architecture in our production environment:
>>> User request ---> Varnish ----> Tomcat Backend
>>>
>>> We have a requirement of generating an unique id at varnish that can be
>>> appended to a request url.
>>> So that it can be propagated to the backend and also will be useful in
>>> tracking errors efficiently
>>>
>>> varnish version used: varnish-5.2.1
>>>
>>> Example:
>>> original request:
>>> /search/test?q=bags&source=mobile
>>>
>>> After appending unique id [This needs to be sent to backend and to be
>>> stored in varnish logs]:
>>> /search/test?q=bags&source=mobile&uniqueid=abc123
>>>
>>> Please help us know if there is any way to do this at varnish
>>>
>>> *Thanks & Regards,*
>>> *Uday Kumar*
>>> _______________________________________________
>>> varnish-misc mailing list
>>> varnish-misc at varnish-cache.org
>>> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
>>>
>>
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