ingress_private: Changes for migating concourse from the private to the public...

ingress_private: Changes for migating concourse from the private to the public ingress controller. Additionally there are changes for removing the private ingress controller

The migration will be peformed on the following zones: ocb-esagso ocb-cmmli ocb-corp ocb-sbma ocb-sirh ocb-mcv ocb-fdl The zones ocb-fh and ocb-bnppc will not be touched because they require ingress_v2 and fe_loadbalancer_v3 which require upgrading CCE.

On each of the zones, the procedure will be as follows:

• apply the ingress_controller_v2_public config => This will add the port-forwarding for concourse-infra to the public ingress controller
• apply the concourse_web_infra configuration => This will switch the ingress from the private to the public controiller and cause the workers to stall.
• apply the fe_concourse_workers config => This will reinstall the infra workers to use the new ssh port
• trackbone destroy for ingress_controller_v2_private
• trackbone apply for fe_loadbalancer_v3

A clean up of the various configs will have to be done after the operation.