Hey,

I am looking to concatenate variables in an array from a with_fileglob but 
i am not sure that set_fact works with loops

- hosts        : all
  vars:
    myfiles : ["old"]
  tasks:
   - name: "facts"
     set_fact:
       myfiles: "{{ [item] | union(myfiles) }}"
     with_items:
      - "new1"
      - "new2"      
      - "new3"            
   - name: "Debug"
     debug: 
       var=myfiles

The output

    "myfiles": [
        "new3",
        "old"
    ]

Only the last item is added. any ideas ?

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