Proper way to concatenate variable strings

Question

I need to create new variable from contents of other variables. Currently I\'m using something like this:

- command: echo \"{{ var1 }}-{{ var2 }}-{{ var3 }}\"
           


        

Answer 1

As simple as joining lists in python itself.

ansible -m debug -a msg="{{ '-'.join(('list', 'joined', 'together')) }}" localhost

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localhost | SUCCESS => {
  "msg": "list-joined-together" }

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Works the same way using variables:

ansible -m debug -a msg="{{ '-'.join((var1, var2, var3)) }}" localhost