You can try to set a condition on the whole role (you can use an empty
main.yml with an inmport: ... when: common_executed is defined) based
upon a fact/variable that you can define at the end of the common role,
thus if it has been executed once, it will be skipped afterwards.
On 17/07/14 00:01, Ahmad Khayyat wrote:
I have a common role, which i always want executed, but only once. It
is also a dependency of a few other roles that may be executed on
their own (via dedicated playbooks).
The problem is: in a top-level playbook, e.g. site.yml, if the common
role is listed anywhere (in site.yml or an included playbook), and is
also a dependency of any other role, its tasks are executed twice.
What I'm thinking is to create a dummy role that depends on 'common',
and include the dummy role in the top-level playbook for all hosts.
That way, 'common' is *always* a dependency, and is always executed
exactly once.
Is there a better solution?
More generally, how can I avoid executing a role more than once,
whether it's listed explicitly or pulled in as a dependency?
If a role is a dependency of multiple other roles, it's executed once,
but if it's also listed explicitly, it is executed twice.
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