Task #3718: Make all services installable via Ansible on one or more hosts - Pulp

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Task #3718

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Make all services installable via Ansible on one or more hosts

Added by bmbouter over 6 years ago. Updated over 4 years ago.

Status:

CLOSED - DUPLICATE

Priority:

Normal

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Category:

Installer - Moved to GitHub issues

Sprint/Milestone:

3.0.0

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Description

Ensure the role can install any of the following services on one or more hosts:

webserver
pulp_workers <------ how many?
resource manager
streamer+squid
Redis
Postgres

Without multiple roles, how do we have a subset of the processes run on multiple hosts?

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Updated by bmbouter over 6 years ago

I did think of a problem w/ this design. We need to ensure that each service (webserver+pulp, redis, postgresql, workers+pulp, resource_manager+pulp) can be installed on one or more hosts in the inventory. Typically this is done with ansible roles and the playbook says run roles ['a', 'b'] on host 1 and role 'c' on host 2. With everything being variables now this becomes something we have to handle and that is different from how Ansible normally works.

I think this means that we have to have multiple roles, with each thing that we may want to run on a separate host being in one role. Is there another option here?

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