Document URL: https://docs.openshift.com/container-platform/4.1/networking/ingress-operator.html
Section Number and Name: Ingress Operator
Describe the issue: We don't have documentation on router sharding.
Suggestions for improvement: Add a section or new module for router sharding.
Started draft PR to add procedural documentation for router sharding.
Jianwei, the PR is ready for QE review. Please take a look when you get a chance.
Addressed QE review on PR (thanks!), merged, and cherrypicked. Additional changes may be addressed in a follow-up PR.
Link to updated docs: https://docs.openshift.com/container-platform/4.2/networking/ingress-operator.html#nw-ingress-sharding-route-labels_configuring-ingress