help request: How to use Admin API filter with label

Description

Hi team,

I am trying to use Admin API filter to select routes, upstreams, ... with their labels

For example, I have a route defined like this

{
  "createdIndex": 38,
  "key": "/apisix/routes/89da83f2",
  "modifiedIndex": 95,
  "value":
    {
      "priority": 0,
      "methods": ["GET", "POST", "DELETE", "PUT"],
      "desc": "Created by apisix-ingress-controller, DO NOT modify it manually",
      "update_time": 1716803625,
      "id": "89da83f2",
      "name": "services-rlio-sops10-svc_tst_auth-service",
      "upstream_id": "29adb2f2",
      "create_time": 1716803624,
      "labels":
        {
          "argocd.argoproj.io/instance": "shared-services",
          "managed-by": "apisix-ingress-controller",
          "app.kubernetes.io/instance": "rlio-sops10-shared-services",
          "app.kubernetes.io/part-of": "apisix"
        },
      "uris": ["/auth/*"],
      "status": 1
    }
}

I tested

http://apisix-admin:9180/apisix/admin/routes?label='argocd.argoproj.io/instance' return all routes
http://apisix-admin:9180/apisix/admin/routes?label='argocd.argoproj.io/instance:shared-services' returns nothing

When adding value to filter, it returns nothing.

Does the filter work with key only? If not what is the syntax to filter routes based on label key and value, plz?

Environment

APISIX version (run apisix version): 3.8.0
Operating system (run uname -a): Linux apisix-5ddcdb7488-bv68s 5.10.213-201.855.amzn2.x86_64 #1 SMP Mon Mar 25 18:16:11 UTC 2024 x86_64 GNU/Linux
OpenResty / Nginx version (run openresty -V or nginx -V): nginx version: openresty/1.21.4.2 built by gcc 10.2.1 20210110 (Debian 10.2.1-6) built with OpenSSL 3.2.0 23 Nov 2023 TLS SNI support enabled configure arguments: --prefix=/usr/local/openresty/nginx --with-cc-opt='-O2 -DAPISIX_RUNTIME_VER=1.1.1 -DNGX_GRPC_CLI_ENGINE_PATH=/usr/local/openresty/libgrpc_engine.so -DNGX_HTTP_GRPC_CLI_ENGINE_PATH=/usr/local/openresty/libgrpc_engine.so -DNGX_LUA_ABORT_AT_PANIC -I/usr/local/openresty/zlib/include -I/usr/local/openresty/pcre/include -I/usr/local/openresty/openssl3/include' --add-module=../ngx_devel_kit-0.3.2 --add-module=../echo-nginx-module-0.63 --add-module=../xss-nginx-module-0.06 --add-module=../ngx_coolkit-0.2 --add-module=../set-misc-nginx-module-0.33 --add-module=../form-input-nginx-module-0.12 --add-module=../encrypted-session-nginx-module-0.09 --add-module=../srcache-nginx-module-0.33 --add-module=../ngx_lua-0.10.25 --add-module=../ngx_lua_upstream-0.07 --add-module=../headers-more-nginx-module-0.34 --add-module=../array-var-nginx-module-0.06 --add-module=../memc-nginx-module-0.19 --add-module=../redis2-nginx-module-0.15 --add-module=../redis-nginx-module-0.3.9 --add-module=../ngx_stream_lua-0.0.13 --with-ld-opt='-Wl,-rpath,/usr/local/openresty/luajit/lib -Wl,-rpath,/usr/local/openresty/wasmtime-c-api/lib -L/usr/local/openresty/zlib/lib -L/usr/local/openresty/pcre/lib -L/usr/local/openresty/openssl3/lib -Wl,-rpath,/usr/local/openresty/zlib/lib:/usr/local/openresty/pcre/lib:/usr/local/openresty/openssl3/lib' --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../mod_dubbo-1.0.2 --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../ngx_multi_upstream_module-1.1.1 --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../apisix-nginx-module-1.15.0 --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../apisix-nginx-module-1.15.0/src/stream --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../apisix-nginx-module-1.15.0/src/meta --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../wasm-nginx-module-0.6.5 --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../lua-var-nginx-module-v0.5.3 --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../grpc-client-nginx-module-v0.4.4 --add-module=/tmp/tmp.DD8aot3fRm/openresty-1.21.4.2/../lua-resty-events-0.2.0 --with-poll_module --with-pcre-jit --with-stream --with-stream_ssl_module --with-stream_ssl_preread_module --with-http_v2_module --without-mail_pop3_module --without-mail_imap_module --without-mail_smtp_module --with-http_stub_status_module --with-http_realip_module --with-http_addition_module --with-http_auth_request_module --with-http_secure_link_module --with-http_random_index_module --with-http_gzip_static_module --with-http_sub_module --with-http_dav_module --with-http_flv_module --with-http_mp4_module --with-http_gunzip_module --with-threads --with-compat --with-stream --with-http_ssl_module
etcd version, if relevant (run curl http://127.0.0.1:9090/v1/server_info): N/A
APISIX Dashboard version, if relevant: N/A
Plugin runner version, for issues related to plugin runners: N/A
LuaRocks version, for installation issues (run luarocks --version): NA/

apache / apisix

help request: How to use Admin API filter with label #11296

Description

Environment