Provide placeholders for Sentry services containers
Summary:
Fixes the following issue:
local:
Data failed to compile:
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Specified SLS roles/paas-docker/containers.sentry_worker in saltenv base
is not available on the salt master or through a configured fileserver
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Specified SLS roles/paas-docker/containers.sentry_cron in saltenv base
is not available on the salt master or through a configured fileserverTest Plan: salt-call state.sls roles/paas-docker/containers
Reviewers: dereckson
Reviewed By: dereckson
Differential Revision: https://devcentral.nasqueron.org/D2210