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No, you cannot nest jinja2 expansion i.e. the following won't work: # Warning ! Those will fail ! some_var: "{{ some_dict[{{ some_dynamic_key }}] }}" other_var: "{{ {{ dynamicaly_prefixed }}_var }}" # Did I forget to say the above examples will fail ? But you can use your var without any problem, just as in almost any other programming ...


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Order of execution is important Server (Task A) needs to run before the client (Task B) Then why are your running Task A async in that case ? Is it just because iperf --server is not falling in the background and dying as soon as the shell task finishes ? A quick look at the documentation shows we can probably work around that problem with something like: ...


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