feat(patch): control the proxy_upstream in lua side (#14029)

Sister PR: Kong/lua-kong-nginx-module#98

AG-186

.requirements

@@ -15,7 +15,7 @@ LIBEXPAT_SHA256=d4cf38d26e21a56654ffe4acd9cd5481164619626802328506a2869afab29ab3
 
 # Note: git repositories can be loaded from local path if path is set as value
 
-LUA_KONG_NGINX_MODULE=f85f92191fb98dbeec614a418d46b008f6a107ce # 0.14.0
+LUA_KONG_NGINX_MODULE=c967e8326179c86680c0f34d82ee087765aed19a # 0.15.0
 LUA_RESTY_LMDB=9da0e9f3313960d06e2d8e718b7ac494faa500f1 # 1.6.0
 LUA_RESTY_EVENTS=bc85295b7c23eda2dbf2b4acec35c93f77b26787 # 0.3.1
 LUA_RESTY_SIMDJSON=7e6466ce91b2bc763b45701a4f055e94b1e8143b # 1.1.0

build/openresty/patches/nginx-1.25.3_10-proxy-upstream-next.patch

@@ -0,0 +1,29 @@
+diff --git a/bundle/nginx-1.25.3/src/http/ngx_http_upstream.c b/bundle/nginx-1.25.3/src/http/ngx_http_upstream.c
+index 2be233c..7f7132d 100644
+--- a/bundle/nginx-1.25.3/src/http/ngx_http_upstream.c
++++ b/bundle/nginx-1.25.3/src/http/ngx_http_upstream.c
+@@ -2563,7 +2563,11 @@ ngx_http_upstream_test_next(ngx_http_request_t *r, ngx_http_upstream_t *u)
+         }
+
+         if (u->peer.tries > 1
++#if (NGX_HTTP_LUA_KONG)
++            && ((ngx_http_lua_kong_get_next_upstream_mask(r, u->conf->next_upstream) & mask) == mask)
++#else
+             && ((u->conf->next_upstream & mask) == mask)
++#endif
+             && !(u->request_sent && r->request_body_no_buffering)
+             && !(timeout && ngx_current_msec - u->peer.start_time >= timeout))
+         {
+@@ -4420,7 +4424,12 @@ ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
+     }
+
+     if (u->peer.tries == 0
++#if (NGX_HTTP_LUA_KONG)
++        || ((ngx_http_lua_kong_get_next_upstream_mask(r, u->conf->next_upstream) & ft_type) != ft_type)
++#else
+         || ((u->conf->next_upstream & ft_type) != ft_type)
++#endif
++
+         || (u->request_sent && r->request_body_no_buffering)
+         || (timeout && ngx_current_msec - u->peer.start_time >= timeout))
+     {

changelog/unreleased/kong/feat-patch-supprt-set_next_upstream.yml

@@ -0,0 +1,4 @@
+message: |
+  Add a patch for kong.resty.set_next_upstream() to control the next upstream retry logic in lua side. [Kong/lua-kong-nginx-module#98](https://github.com/Kong/lua-kong-nginx-module/pull/98)
+type: bugfix
+scope: Core