In our case, variable is configured by external service and load dynamically to apisix. It would be much better to registering a custom variable prefix instead of statically registering each variable.
Fixes # (issue)
Checklist
[x] I have explained the need for this PR and the problem it solves
[x] I have explained the changes or the new features added to this PR
[x] I have added tests corresponding to this change
[ ] I have updated the documentation to reflect this change
[x] I have verified that this change is backward compatible (If not, please discuss on the APISIX mailing list first)
Description
In our case, variable is configured by external service and load dynamically to apisix. It would be much better to registering a custom variable prefix instead of statically registering each variable.
Fixes # (issue)
Checklist