Yiyiyimu opened a new issue #4449: URL: https://github.com/apache/apisix/issues/4449
### Issue description https://github.com/apache/apisix/blob/8282046bd894ec185e2b92d94126c9c3235c5d2a/conf/config-default.yaml#L205-L207 Currently we need to add quotes around etcd host. But if we generate yaml with say [go-yaml](https://github.com/go-yaml/yaml) the quotes would be removed and apisix could not start as expected with error: ``` /usr/local/openresty/luajit/bin/luajit: ...apisix/deps/share/lua/5.1/tinyyaml.lua:654: failed to classify line: http://127.0.0.1:2379 # multiple etcd address, if your etcd cluster enables TLS, please use https scheme, stack traceback: [C]: in function 'error' ...apisix/deps/share/lua/5.1/tinyyaml.lua:654: in function 'parsemap' ...apisix/deps/share/lua/5.1/tinyyaml.lua:517: in function 'parseseq' ...apisix/deps/share/lua/5.1/tinyyaml.lua:680: in function 'parsemap' ...apisix/deps/share/lua/5.1/tinyyaml.lua:690: in function 'parsemap' ...apisix/deps/share/lua/5.1/tinyyaml.lua:740: in function 'parsedocuments' ...apisix/deps/share/lua/5.1/tinyyaml.lua:765: in function 'parse' ./apisix/cli/file.lua:176: in function 'read_yaml_conf' ./apisix/cli/ops.lua:312: in function <./apisix/cli/ops.lua:303> ./apisix/cli/ops.lua:810: in function 'execute' ./apisix/cli/apisix.lua:34: in main chunk [C]: at 0x562c0de08690 Makefile:122: recipe for target 'init' failed make: *** [init] Error 1 ``` Since etcd host without quotes is also acceptable  We need to modify yaml parsing library ### Environment * apisix version (cmd: `apisix version`): master -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
