Short version:
Why does Ansible keep running '-include: mysql-cluster.yml' whenever it
encounters it? Can't it recognize this was already executed once?
Long version:
I am trying to find a good way to organize Ansible scripts so that they
meet these requirements:
- Developers can run their project and not worry about running any
dependencies manually
- Have a master playbook describing our whole infrastructure (site.yml) and
not call dependencies multiple times even though they already run.
We're running a mid size setup with site.yml that is a list of other
playbooks that we include.
# file: site.yml
# This is a top level playbook representing everything in Polaris.
# It includes subplaybooks for independent collections of modules that may
be deployed together.
# Infrastructure
- include: cdh5.yml
- include: memcached.yml
- include: myAPI_1.yml
- include: myAPI_2.yml
( and so on )
The myAPI_1 and myAPI_2 playbook look like this:
file: myAPI_1.yml
---
- include: mysql-cluster.yml
- name: Memcached - Setup
hosts: memcached
roles:
- memcached
tags:
- memcached
- name: My API 1 - Setup
hosts: myapis
roles:
- repository
- oracle-java
- myAPIs/myAPI_1
tags:
- myAPI_1
When running site.yml, how do I avoid calling running MySQL-cluster
playbook twice? Once included via myAPI_1, second time via myAPI_2.
For developers, I want them to be able to run myAPI_1.yml and not worry
about running any other dependencies.
I tried doing this with TAGS, so developers would always launch site.yml
with '--tags=myAPI1' but for a large site.yml this takes a long time and
leaves a lot irrelevant logging.
Using meta dependencies works only for roles, not playbooks.
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