Update healthcheck commands that probe oslo's messaging port to use the
RpcPort parameter. Previously, some templates referenced the service's
own 'rabbit_port' config setting, which led to malformed healthcheck
commands when the 'rabbit_port' settings were deprecated.
Update the templates that looked up the port in the RabbitMQService's
global_config_settings. Not only did this break the oslo abstraction
by referring to a specific messaging backend (rabbit), it broke
split-stack deployments in which the RabbitMQService is not actually
deployed on the secondary stack's nodes.
This patch creates a common healthcheck command using the RpcPort
parameter in containers-common.yaml. This allows other templates to
reference a common healthcheck command. Other templates that should
also use this can be cleaned up in a separate patch.
Closes-Bug: #1825342
Change-Id: I0d3974089ae6e6879adab4852715c7a1c1188f7c
c5fe51147b