[utils/mysql] Replace Global Master Password

[BugRoger]

https://github.com/sapcc/helm-charts/blob/master/openstack/utils/templates/_hosts.tpl#L130

• Remove all references to Values.global.master_password
• Prefer to not reference a global value. Instead require a password being passed to the chart

Prior Art: https://github.com/sapcc/helm-charts/commit/a4c48f4160d81b1f3bbdb356f7526c431763ca4a Take note that this utility function is being used in many other charts:

• utils.password_for_fixed_user_mysql
  • utils.password_for_user_mysql
  • utils.root_password
    • db_url_mysql
      • https://github.com/sapcc/helm-charts/blob/master/openstack/nova/templates/bin/_db-update-cells.tpl
      • https://github.com/sapcc/helm-charts/blob/master/openstack/barbican/templates/etc/_barbican.conf.tpl
      • https://github.com/sapcc/helm-charts/blob/master/openstack/octavia/templates/etc/_octavia.conf.tpl
      • https://github.com/sapcc/helm-charts/blob/master/openstack/neutron/templates/etc/_neutron.conf.tpl
      • https://github.com/sapcc/helm-charts/blob/master/openstack/designate/templates/etc/_designate.conf.tpl

[BugRoger]

@Carthaca @rajivmucheli We still have a transitive dependency to the master_password in this utility function.

I suggest we delete the function: https://github.com/sapcc/helm-charts/blob/0c26619ebb462261149801e561b0ec8342306fde/openstack/utils/templates/_hosts.tpl#L125-L131

and replace each occurance with a similar require as was used here:

required ".Values.global.bigip_user required!") ( $envAll.Values.global.bigip_password | required ".Values.global.bigip_password required!"

[rajivmucheli]

Hi @BugRoger,

1. cinder & nova service need to merge/rollout the PR's mentioned in #2293, until then we cannot fix #2294.
2. The above format is already being implemented in #2293, example : https://github.com/sapcc/helm-charts/pull/2348/files