stop using columns that we will remove shortly

[grosser]

Steps:

• manually alter to remove not-null (will block all deploys)

ActiveRecord::Base.connection.execute "ALTER TABLE `kubernetes_release_docs` CHANGE `requests_cpu` `requests_cpu` decimal(6,2) DEFAULT NULL, CHANGE `requests_memory` `requests_memory` integer DEFAULT NULL"

• deploy this
• manually remove columns (will block all deploys)

ActiveRecord::Base.connection.execute "ALTER TABLE `kubernetes_release_docs` DROP COLUMN `requests_cpu`, DROP COLUMN `requests_memory`, DROP COLUMN `no_cpu_limit`"

• deploy revert of this

/cc @zendesk/compute @zendesk/eng-productivity

[uthark]

hopefully this will fix it.

[grosser]

... will just do the delete over the weekend and then restart ... no need to do 2 long alters 🤷‍♂